Initial Environmental Examination Amendment 2013 South Sudan Agriculture PERSUAP (Pesticide Evaluation Report & Safer Use Action Plan) PROGRAM/ACTIVITY DATA: Program/Activity Number: Contract Number: Order Number: Country/Region: Functional Objective: Program Areas: Program Activity/Title: Funding Begin: Funding End: LOP Amount: Food, Agribusiness and Rural Markets (FARM), REDH-I-00-05-00005-00 16, Abt. Associates South Sudan/East Africa 4.0 Economic Growth 4.5 Agriculture and 4.6.2 Private Sector Competitiveness 4.5.2 Agriculture Sector Productivity and 4.6.3 Private Sector Productivity Food, Agribusiness and Rural Markets (FARM) 2/18/2010 2/17/2014 $54.2million Activity Title: Agreement Number: Functional Objective Program Area Program Element Program Element Funding Begin: Funding End: LOP Amount: Seeds for Development (S4D-AGRA) AID-668-A-11-00003 4.0 Economic Growths 4.5: Agriculture 4.5.1 Agricultural Enabling Environment 4.5.2 Agriculture Sector Productivity Capacity FY 2011 FY 2013 $5.2mn Activity Title: Agreement Number: Functional Objective Program Area Program Element Program Element Funding Begin: Funding End: LOP Amount: Seeds for Development (S4D-IFDC) AID-668-IO-11-00001 4.0 Economic Growth 4.5: Agriculture 4.5.1 Agricultural Enabling Environment 4.5.2 Agriculture Sector Productivity Capacity FY 2011 FY 2013 $15 million Program Elements: 2013 South Sudan PERSUAP | pg. i Activity Title: Agreement Number: Functional Objective: Program Areas: Program Elements: LOP Amount: Activity Title: Agreement Number: Functional Objective: Program Areas: Program Elements: LOP Amount: Program Activity/Title: Agreement Number: Rebuilding Higher Education in Agriculture (RHEA) 650-A-00-11-00303-00 3.0 Investing in People 3.2 Education 3.2.2.2 Institutional Capacity Development 3.2.2.3 Engaging Higher Education Institutions in Development 3.2.2.4 Professional Development 3.2.2.5 Host Country Strategic Information Capacity (Higher Ed) 10,554,527 Rebuilding Higher Education in Agriculture (JG-MUST) AID-668-A-11-00001 3.0 Investing in People 3.2 Education 3.2.2.2 Institutional Capacity Development 3.2.2.3 Engaging Higher Education Institutions in Development 3.2.2.4 Professional Development 3.2.2.5 Host Country Strategic Information Capacity (Higher Ed) 9,796,757 Functional Objective: Program Area: Program Element: Funding Begin: Funding End: LOP Amount: Agricultural Credit Expansion in South Sudan (ACESS) 668-DCA-12-001A 668-DCA-12-001B 668-DCA-12-001C 4.0 Economic Growth 4.7 Economic Opportunity 4.7.4 Inclusive Financial Markets FY 2012 FY 2016 $7,000,000 Program Activity/Title: Agreement Number: Functional Objective: Program Area: Program Element: Funding Begin: Funding End: LOP Amount: FARM II (notional) TBD 4.0 Economic Growth 4.7 Economic Opportunity 4.7.4 Inclusive Financial Markets FY 2013 FY 2018 $50,000,000 (notional) 2013 South Sudan PERSUAP | pg. ii Prepared By: Draws extensively from a draft 2011 FARM PERSUAP developed by J Litsinger. Additional technical contributions by Jane Kahata. Integration editing by Mark Stoughton, GEMS/The Cadmus Group. [email protected]. Current Date: July 11, 2013 Expiration Date: As per the parent IEEs. Submitted By (Project Point-of-Contact): EMegan Willis IEE Amendment (Y/N): Y amends the following IEEs: FARM project IEE (5/07/2010) S4D, (implemented by AGRA and IFDC, one combined IEE), (10/05/2011 RHEA & ACCESS IEEsand JG-MUST (combined IEE) 09/09/2010 ACESS IEE 5/30/2012 ENVIRONMENTAL ACTION RECOMMENDED: (Place X where applicable) Categorical Exclusion: Negative Determination: Positive Determination: Deferral: X ADDITIONAL ELEMENTS: (Place X where applicable) CONDITIONS : X___ SUAP/EMMP : ___X___ PVO/NGO: SUMMARY OF FINDINGS Scope.This Pesticide Evaluation Report and Safer Use Action Plan (PERSUAP) covers the activities undertaken by Food, Agribusiness, and Rural Markets (FARM), Seeds for Development (S4D, implemented by AGRA and IFDC), Rebuilding Higher Education in Agriculture (RHEA), John Garang Memorial and University of Science and Technology (JG-MUST), Agriculture Credit Expansion in South Sudan (ACESS), and FARM II (in design). To achieve their objectives, these programs require effective pest management across more than a dozen target crops, which in turn will require use of chemical controls in a number of instances. Pest management needs are detailed in Annex A. Purpose. In compliance with USAID’s Pesticide Procedures (22 CFR 216.3(b)), this PERSUAP: Establishes the set of pesticides for which support is authorized in USAID/South Sudan Agriculture Sector activities. Establishes requirements attendant to support for these pesticides to assure that pesticide use/support (1) embodies the principles of safer pesticide use and, (2) per USAID policy, is within an Integrated Pest Management (IPM) framework. These requirements come into effect upon approval of the PERSUAP. The set of authorized pesticides and requirements for safer use are established through the first sections of the document, the Pesticide Evaluation Report (PER), which culminates with an assessment of the 12 pesticide risk evaluation factors (a through l) required by 22 CFR 216.3(b). The SAFER USE ACTION PLAN (SUAP; Section 6) provides asuccinct, definitive stand-alone statement of compliance requirements, synthesized from the 12-factor analysis. It also provides a template for assigning 2013 South Sudan PERSUAP | pg. iii responsibilities and timelines for implementation of these requirements. Each project subject to this PERSUAP must complete this SUAP template and submit to its AOR/COR. Aproved pesticides. Upon approval of this PERSUAP, the below-listed pesticides (active ingredients) are permitted for use/support in USAID/South Sudan agriculture sector projects. (Toxicological summaries and EPA registration status are presented in Table B-1 of Annex B. Insecticide Fungicide acetamiprid (but may not be used during crop flowering on crops pollinated by honeybees.) azadirachtin (neem oil; also an insecticide) mancozeb metalaxyl FOR SEED TREATMENT ONLY thiram FOR SEED TREATMENT ONLY sulfur (also an insecticide) azadirachtin (neem oil; also a fungicide) Bacillus thuringiensis-Bt betacyfluthrin carbaryl chlorpyrifos (formulations < 10% Active Ingredient (AI) ONLY) clothianidin (but may not be used during crop flowering on crops pollinated by honeybees.) cyphenothrin dimethoate Fumigant None allowed, EXCEPT that aluminum phosphide fumigation may be contracted from specialized providers with all necessary training and equipment. Herbicide malathion fluazifop-p-butyl glyphosate isopropylamine salt of glyphosate imazapyr pendimethalin propanil thiobencarb pyrimiphos methyl (also pirimiphos methyl) (seed treatment only) Bird Repellant spinosad methyl anthranilate imidacloprid (but may not be used during crop flowering on crops pollinated by honeybees.) indoxacarb* insecticidal soaps lambda cyhalothrin (formulations < 10% AI only) sulfur (also a fungicide) thiamethoxam (but may not be used during crop flowering on crops pollinated by honeybees.) Veterinary Applications Albendazole* (anti-parasitical; not a pesticide but an orally administered drug) Note: As imidacloprid and thiram have properties as repellants against birds and mammals that feed on sown-seed, they should be preferred as seed treatments over the other seed treatment materials * Anti-parasitical; not a pesticide but an orally administered drug – It will require additional clearance as a phamacitical Note that: Neonicotinoid pesticides (acetamiprid, clothianidin, imidacloprid and thiamethoxam) are linked by some studies to honey bee colony collapse disorder in the US and Europe, as one of multiple contributing factors. Clothianidin is the most highly implicated, followed by imidacloprid. However, the small-scale and asynchronous uses of neonicotinoids envisioned in South Sudan are judged to present markedly lower risks to bees than the large-scale, synchronous applications in the US and Europe, where hundreds or thousands of hectares may be sprayed at one time. They are thus approved for both seed treatment and foliar use under this PERSUAP. However, this PERSUAP will be amended to restrict their use if asynchronous small-scale applications are shown to present significant risk of CCD and/or if US EPA registration status changes. Neonicotinoid use must be monitored for honeybee impacts. 2013 South Sudan PERSUAP | pg. iv Note also that insecticide active ingredients carbaryl, dimethoate and malathion, as well as herbicide active ingredients pendimethalin and propanil, are potential (not proven) carcinogens, so additional caution is indicated for individuals who may use these products regularly. Mitigation Measures and restrictions attendant to the use of these pesticides can be summarized as follows. (The PER and the annexes provide substantial resources to support compliance with these requirements.) A. Only pesticides approved by this PERSUAP may be supported with USAID funds in USAID/South Sudan agricultural sector activities. These pesticides are enumerated above. Pesticide “SUPPORT” means procurement, use, recommending for use, or otherwise facilitating the use of a pesticide. B. Pesticide support must be governed by a set of locally adapted, crop- and pest-specific IPM-based pest management plans and observe enumerated use restrictions. (The PERSUAP provides key information for IPs to develop these plans.) C. Appropriate project staff & beneficiaries must be trained in safer pesticide use & pesticide first aid; D. To the greatest degree practicable, projects must require use & maintenance of appropriate PPE—as well as safe pesticide purchase, handling, storage and disposal practices; E. Projects must be systematic in their pesticide-related record-keeping and monitoring. F. Lending to fund the procurement of pesticides will be limited to Borrowers receiving adequate technical assistance through existing USAID-funded agricultural development projects in South Sudan (e.g., FARM and S4D projects). See 2.5 Agricultural Credit Expansion in South Sudan (ACESS). These conditions are detailed in the included mandatory SUAP template for assigning responsibilities and timelines for implementation of these requirements, and for tracking compliance. Each project subject to this PERSUAP must submit a completed SUAP template to its AOR/COR 30 days before the implementation of the activity and provide an annual update. With respect to pesticides, the Safer Use Action Plan satisfies the requirement for an environmental mitigation and monitoring plan (EMMP). The project EMMP should simply incorporate the SUAP by reference. See the # Pesticide Safer Use Action Plan & Compliance Tracker 2013 South Sudan PERSUAP | pg. v APPROVAL OF THE RECOMMENDED ENVIRONMENTAL ACTION (2013 South Sudan PERSUAP: CLEARANCE: Mission Director CONCURRENCE: Africa Bureau Environmental Officer Signed: ___/signed/______________ Date: 7/26/2013___ William Brands Signed:______________________ Date: ___________ Brian Hirsch ADDITIONAL CLEARANCES: EG Office Director Signed:_____/signed/______________ Date: 7/11/2013_____ Tom Rhodes Mission Environmental Officer Signed:___/signed/_______________ Date: 07/11/2013_____ Richard Nyarsuk Regional Environmental Advisor USAID/East Africa Signed: ___/signed /_____________ Date: _7/25/2013_____ David Kinyua Regional Legal Advisor Signed: _____/signed/______________ Date: 07/15/2013____ Zeinah Salahi Deputy Mission Director Signed: ____n/a_______ ______________ Date: _n/a__________ Alex Deprez Distribution List: USAID South Sudan MEO, East Africa REA USAID/South Sudan EG Team A/CORs and Activity Managers, who distribute to IPs USAID/South Sudan Office of Acquisitions and Assistance USAID/Southern Sudan Program and Project Development Office 2013 South Sudan PERSUAP | pg. vi (version 4 October 2013) Table of Contents Acronyms ...................................................................................................................................................... x SECTION 1: INTRODUCTION ........................................................................................................................ 12 1.1 Purpose and Scope ........................................................................................................................... 12 1.2 Regulatory Requirements, the PERSUAP concept, and Analytical Approach................................... 12 1.3 Development of this PERSUAP ......................................................................................................... 15 2. PROJECTS COVERED BY THIS PERSUAP ................................................................................................... 15 2.1 Food Agribusiness and Rural Markets (FARM) Sudan ...................................................................... 15 2.2 Seeds for Development Program (S4D) ............................................................................................ 17 2.3 Rebuilding Higher Education in Agriculture (RHEA).......................................................................... 18 2.4 John Garang Memorial University of Science and Technology (JGMUST) ....................................... 18 2.4 Agricultural Credit Expansion in South Sudan (ACESS) ..................................................................... 18 3. ENVIRONMENTAL & AGRICULTURAL CONTEXT ...................................................................................... 19 3.1 Priority geographic places or areas of projects intervention ........................................................... 19 3.2 Country Environmental Profile ......................................................................................................... 20 3.3 Agriculture in South Sudan (Excluding Pest Management) ............................................................. 22 SECTION 4: PER, PART 1: PEST MANAGEMENT NEEDS, PESTICIDES AVAILABLE, AND MANAGEMENT CAPACITY..................................................................................................................................................... 24 4.1 Identification of Target Crops ........................................................................................................... 24 4.2 Pest Management Needs for Target Crops ...................................................................................... 25 4.3 Traditional pest control practices; Current State of IPM Awareness & Practice ..................... 25 4.4 Current pesticide use/availability ..................................................................................................... 26 4.5 Available PPE and Application Equipment........................................................................................ 29 4.6 Pesticide Knowledge and Awareness. .............................................................................................. 29 4.7 Agro-dealer Safer Use Awareness & Extension to Customers ......................................................... 29 4.9 List of Candidate Pesticides .............................................................................................................. 30 SECTION 5: PER, PART 2: THE 12-FACTOR ANALYSIS ................................................................................. 32 Factor A: US EPA Registration Status of the Proposed Pesticides .......................................................... 32 Factor B: Basis for Selection of Pesticides .............................................................................................. 34 2013 South Sudan PERSUAP | pg. vii Factor C: Extent to Which the Proposed Pesticide Use is, or could be, Part of an IPM Program.......... 35 Factor D: Proposed Method or Methods of Application, Including the Availability of Application and Safety Equipment ................................................................................................................................... 35 Factor E: Any Acute and Long-Term Toxicological Hazards, Either Human or Environmental, Associated with the Proposed Use, and Measures Available to Minimize Such Hazards ........................................ 36 Factor F: Effectiveness of the Requested Pesticides for the Proposed Use ........................................... 37 Factor G: Compatibility of the Proposed Pesticide use with Target and Non-Target Ecosystems......... 38 Factor H: The Conditions Under which the Pesticide is to be Used, Including Climate, Flora, Fauna, Geography, Hydrology, and Soils............................................................................................................ 39 Factor I: The Availability and Effectiveness of other Pesticides or Non-Chemical Control Methods .... 40 Factor J: The Requesting Country's Ability to Regulate or Control the Distribution, Storage, Use and Disposal of the Requested Pesticide ...................................................................................................... 40 Factor K: The Provisions Made for Training of Users and Applicators ................................................... 41 Factor L: The Provisions Made for Monitoring the Use and Effectiveness of the Pesticides ................. 42 SECTION 6: SAFER USE ACTION PLAN ......................................................................................................... 42 6.1 Introduction ...................................................................................................................................... 42 6.2 Allowed Pesticides ............................................................................................................................ 42 6.3 Summary of Compliance Requirements ........................................................................................... 43 Pesticide Safer Use Action Plan & Compliance Tracker.......................................................................... 45 7. LITERATURE CITED .................................................................................................................................. 50 ANNEX A: PESTS & DISEASES OF TARGET CROPS & AVAILABLE & RECOMMENDED CONTROL METHODS .................................................................................................................................................................... 51 Maize ...................................................................................................................................................... 51 Sorghum.................................................................................................................................................. 58 Cassava ................................................................................................................................................... 63 Groundnut .............................................................................................................................................. 65 Finger Millet (Eleucine coracana) ........................................................................................................... 68 Pigeon peas (Cajanus cajan) Family: Fabaceae ...................................................................................... 71 Onions (Allium cepa) .............................................................................................................................. 75 Tomatoes (Lycopersic onesculentum) ................................................................................................... 78 Dry Beans (Common Beans) Phaseolus vulgaris .................................................................................... 83 Okra (Abelmoschus esculentus) ............................................................................................................ 85 Cabbage (Brassica oleracea), and Kales Var. capitata ............................................................................ 89 Sesame/Simsim (Sesamum indicum ) Order/Family: Pedaliaceae ......................................................... 92 Upland Rice (Nerica) ............................................................................................................................... 95 Stored grain & seed ................................................................................................................................ 97 2013 South Sudan PERSUAP | pg. viii Annex B: PESTICIDE PROFILES: TOXICOLOGY, USES, PROTECTIVE MEASURES ......................................... 99 B.1 Orientation: Pesticide toxicity and risk............................................................................................. 99 B.2 Summary Toxicology Profiles of Pesticides Assessed by this PERSUAP. .......................................... 99 B.3 Insecticide Profiles .......................................................................................................................... 103 B.4 Fungicide Profiles ........................................................................................................................... 113 B.5 Herbicide Profiles ........................................................................................................................... 116 B.6 Bird Repellant Profiles .................................................................................................................... 120 ANNEX C: MANDATORY ELEMENTS OF PESTICIDE SAFER USE TRAINING .............................................. 121 C.1 Integrated Pest Management......................................................................................................... 121 C.2 Protective clothing and equipment ................................................................................................ 122 C.3 Proper Spray Technique: Protecting against herbicide spray drift ................................................ 123 C.4 Pesticide Transport ......................................................................................................................... 124 C.5 First aid ........................................................................................................................................... 124 C.6 Pesticide storage ............................................................................................................................ 125 C.7 Proper pesticide container disposal ............................................................................................... 126 2013 South Sudan PERSUAP | pg. ix Acronyms ACDI/VOCA NGO partner in FARM ACESS Agriculture Credit Expansion in Southern Sudan AAH Action Africa Help NGO partner in FARM AI(s) active ingredient(s) BDS Business Development Services B.t. Bacillus thuringiensis microbial insecticide/fungicide C centigrade CCD Colony Collapse Disorder CFR Code of US Federal Regulations CFSAM Crop and Food Supply Assessment Missions CIMMYT International maize and wheat research center in Mexico CNRES College of Natural Resources and Environmental Studies CPA Comprehensive Peace Agreement CUS Catholic University of Sudan DCA Development Credit Authority DRC Democratic Republic of the Congo EMMP Environmental Mitigation and Monitoring Plan EPA Environmental Protection Agency US EC Emulsifiable Concentrate (pesticide formulation) FAES Faculty of Agriculture and Environmental Sciences FAO Food Agriculture Organisation FARM Farming Agribusiness and Rural Markets (USAID project in S. Sudan) FBO farmer business organization Feddan there are 1.05 acres per feddan (a measurement of farm area) GMO genetically modified organism GOSS Government of South Sudan GAP Good agricultural practices GMO genetically modified organism GUP General Use Pesticides ICIPE International Center for the study of Insect Physiology and Ecology in Kenya IIE Initial Environmental Examination IITA International Institute of Tropical Agriculture Nigeria IPM Integrated Pest Management IR Intermediate Result JGMUST John Garang Memorial University of Science and Technology KARI Kenya Agricultural Research Institute 2013 South Sudan PERSUAP | pg. x LC50 Lethal concentration that realizes 50% fatality LD50 Lethal Dosage that realizes 50% fatality LOC Level of Concern M million MAF Ministry of Agriculture and Forestry Sudan MCL, MRL Maximum Contaminant Level, Maximum Residue Limits M&E Monitoring and Evaluation MEO Mission Environmental Officer USAID MSDS material safety data sheet (information on pesticide toxicity and safety) NARO National Agricultural Research Organization Uganda NGO Non-Governmental Organization NOEL No Observable Effect Level PERSUAP Pesticide Evaluation Report and Safer Use Action Plan pH degree of acidity or alkalinity PAN Pesticides Action Network PPE Personal Protective Equipment POP persistent organic pollutant RED Registrtaion Eligibility Decision REI Restricted-Entry Interval RHEA Rebuilding Higher Education in Agriculture RQ Risk Quotient RSS Republic of South Sudan RUP Restricted Use Product S4D Seeds for Development SDG Sudanese pound monetary unit (2.8 SDG = $1) SME Small and Medium Enterprises TOT Training of Trainers USAID United States Agency for International Development USEPA United States Environmental Protection Agency UJ University of Juba UV ultra violet (short wave length light) WFP World Food Program WHO World Health Organization 2013 South Sudan PERSUAP | pg. xi SECTION 1: INTRODUCTION 1.1 Purpose and Scope In compliance with USAID’s Pesticide Procedures (22 CFR 216.3(b)), this 2013 South Sudan Agricultural Portfolio Pesticide Evaluation Report and Safer Use Action Plan (PERSUAP): Establishes the set of pesticides for which support is authorized on USAID/South Sudan Agriculture Sector activities. Establishes requirements attendant to support for these pesticides to assure that pesticide use/support (1) embodies the principles of safer pesticide use and, (2) per USAID policy, is within an Integrated Pest Management (IPM) framework. These requirements come into effect upon approval of the PERSUAP. The set of authorized pesticides and requirements for safer use are established through the first sections of the document, the Pesticide Evaluation Report (PER), which culminates with an assessment of the 12 pesticide risk evaluation factors (a through l) required by 22 CFR 216.3(b). The SAFER USE ACTION PLAN (SUAP, Section 6) provides a succinct, stand-alone statement of compliance requirements, synthesized from the 12-factor analysis. It also provides a template for assigning responsibilities and timelines for implementation of these requirements. Each project subject to this PERSUAP must complete this SUAP template and submit to its AOR/COR. 1.2 Regulatory Requirements, the PERSUAP concept, and Analytical Approach Regulatory Requirements Attendant to USAID-funded Support for Pesticides. All USAID- funded activities are subject to pre-implementation environmental review, starting with a screening process that determines the level of environmental scrutiny that is required. Activities considered as having moderate or unknown risks are subjected to an Initial Environmental Examination (IEE). USAID’s pre-implementation environmental review procedures are defined by 22 CFR 216, a US federal regulation. Pesticides are any agent used to kill or control any pest, including insects, rodents or birds, unwanted plants (weeds), fungi, or microorganisms such as bacteria and viruses. Though often misunderstood to refer only to insecticides, the term pesticide also applies to herbicides, fungicides, micro- biocides, rodenticides and various other substances used to control pests. Pesticides are by design poisons, and their use entails a degree of risk to humans, birds, fish, bees, and other living things, as well as to the environment. 2013 South Sudan PERSUAP | pg. 12 If USAID funds are to be used to procure, directly fund or support the use of pesticides, 22 CFR 216.3(b) requires that 12 factors be analyzed as the basis for approving the use of any pesticides, and as the basis for establishing the requirements attendant to that use to control risks to human health and the environment. (see box)1 It is important to note that USAID defines pesticide “use” broadly to include direct or indirect use including the handling, transport, storage, mixing, loading, application and disposal of pesticides and their containers, as well as recommending pesticides for use via extension or other agricultural assistance. USAID Policy: Integrated Pest Management In addition, since the early 1990s USAID has been committed to the philosophy and practice of Integrated Pest Management (IPM) as official policy. There is not a single standard international definition for IPM, but there is wide agreement on its basic elements. Under IPM: THE 12 PESTICIDE ANALYSIS FACTORS Factor A. USEPA registration status of the proposed pesticides Factor B. Basis for selection of pesticides Factor C. Extent to which the proposed pesticide use is part of an IPM program Factor D. Proposed method or methods of application, including the availability of application and safety equipment Factor E. Any acute and long-term toxicological hazards, either human or environmental, associated with the proposed use, and measures available to minimize such hazards Factor F. Effectiveness of the requested pesticide for the proposed use Factor G. Compatibility of the proposed pesticide use with target and non-target ecosystems Factor H. Conditions under which the pesticide is to be used, including climate, geography, hydrology, and soils Factor I. Availability of other pesticides or nonchemical control methods Factor J. Host country’s ability to regulate or control the distribution, storage, use, and disposal of the requested pesticide “First line” defenses against pest damage are a combination of techniques such as biological Factor K. Provision for training of users and control, habitat manipulation, modification of applicator cultural practices, and use of resistant Factor L. Provision made for monitoring the use and varieties. effectiveness of each pesticide Pesticides are used only after monitoring indicates they are needed according to established guidelines, and treatments are made with the goal of removing only the target organism. Pest control materials are selected and applied in a manner that minimizes risks to human health, beneficial and non-target organisms, and the environment. IPM is strongly promoted as part of Regulation 216.3 Factor C. 1 Specifically, Reg. 216.3(b)(1)(i) stipulates: “When a project includes assistance for procurement or use, or both, of pesticides registered for the same or similar uses by USEPA without restriction, the IEE for the project shall include a separate section evaluating the economic, social and environmental risks and benefits of the planned pesticide use to determine whether the use may result in significant environmental impact. Factors to be considered in such an evaluation shall include, but not be limited to the following” (see box) 2013 South Sudan PERSUAP | pg. 13 The PERSUAP USAID Africa Bureau has adopted the PERSUAP, which formally constitutes an amendment to a project’s IEE, to address the requirements of 22 CFR 216.3(b) with particular emphasis on assuring that pesticide use occurs within an IPM framework. A PERSUAP consists of two core parts, a “PER” and a “SUAP.” The PER first characterizes pest management needs for the subject USAID projects, and pesticides availability, pesticides awareness among potential beneficiaries, and the critical local context. This information then provides input to the assessment of the 12 pesticide risk evaluation factors (a through l) required by 22 CFR 216.3(b). The PER thereby establishes the set of authorized pesticides and requirements for safer use. The SAFER USE ACTION PLAN (Section 6) provides a succinct, stand-alone statement of compliance requirements, synthesized from the 12-factor analysis. It also provides a template for assigning responsibilities and timelines for implementation of these requirements Each project subject to this PERSUAP must complete this SUAP template and submit to its AOR/COR. USAID/South Sudan Agriculture Sector Pest Management Needs USAID/South Sudan agricultural sector projects include a number of activities that require effective management of pests to achieve their objectives. Pests include weeds, arthropods and vertebrates, diseases, nematodes, and snails that cause damage to agricultural field crops, vegetables, and stored products. This need for effective pest management is not limited to the period of performance of the project, but is rather a continuing need for the long-term, sustainable improvements in agricultural productivity USAID projects seek to achieve. Typical pests of USAID project target crops are extensively documented in Annex B. This annex makes clear that while non-chemical controls have a critical role to play, achieving USAID/South Sudan agriculture sector program objecives will require pesticide use/support. To better enable USAID/South Sudan agricultural projects to address this need, this PERSUAP, upon approval, will authorize a set of carefully screened pesticides for USAID support within an IPM framework. Local, context-specific analysis The assessment of “pesticide and pest management local context” that begins the PER is a key feature of the PERSUAP approach. Why is it needed? This provides essential input to the 12-factor analysis. The purpose of the 12-factor analysis is to select appropriate pesticides and safer use measures. This requires taking into consideration the context in which the products will be used, the particular elements of the program, and the different capacities of the partners and stakeholders involved. A PERSUAP is typically based on existing policies, procedures, and laws of the host country, with an overlay of US standards and laws. In the case of South Sudan there currently are no existing policies and laws pertaining to pesticide import, transport, sale, use, storage, and disposal. Therefore the pesticide laws of Uganda and 2013 South Sudan PERSUAP | pg. 14 Kenya are used in the stead of local requirements. A draft Crop Protection policy has been developed for RSS through the FARM project and is currently going through RSS approval procedures.. 1.3 Development of this PERSUAP This PERSUAP is the product of two development stages. Stage 1: Draft FARM PERSUAP. The first stage included two efforts; the first by Abt Associates as implementers of the FARM project which initiated the analysis and led to a draft, FARM-specific PERSUAP. In February 2011 a Consultant was working on an Environmental Review of a land clearing exercise and was asked to review the PERSUAP and add information from the field tours that were taken to the three states where extension workers from those states were interviewed. Visits were made to 25 farmer organizations and some key farmers were interviewed regarding pest control practices in each location. These experiences provided more field information leading to a revised FARM PERSUAP. This document was never formally approved, but remained in draft. In addition, a separate seed treatment PERSUAP was developed to support FARM Sudan’s efforts to provide certified sorghum, and groundnut seed treated with a fungicide and insecticide to FBOs. This PERSUAP was valid for only one year. Stage 2: Expansion and update of the draft FARM PERSUAP resulting in the current document. The current document is based on the 2011 FARM PERSUAP draft, expanded to cover the South Sudan Agriculture Sector portfolio beyond FARM (including seed treatment), updated to reflect changes in pesticide availability and use in South Sudan over the past 2-3 years, and reorganized to improve usability. Field work to support the update was conducted by Jane Kahata under USAID’s Global Environmental Management Support Project (GEMS). For the update, Ms. Kahata visited pesticide shops in areas targeted by South Sudan agricultural sector activities to record any new pesticides found since 2011 and analyzed five new crops not covered in 2011., Ms. Kahata received technical guidance from Harry Bottenberg of USAID/South Sudan and Dr. Alan Schroeder, a pesticides and IPM expert. Following these analyses, Dr Schroeder reviewed the draft and provided feedback and corrections. Further integration editing was undertaken by GEMS home office staff. 2. PROJECTS COVERED BY THIS PERSUAP This PERSUAP covers the following active agricultural projects in South Sudan: FARM, Seeds for Development (S4D), Rebuilding Higher Education in Agriculture (RHEA), and Agricultural Credit Expansion in South Sudan. Each is described briefly below. 2.1 Food Agribusiness and Rural Markets (FARM) FARM is a 5-year program funded by USAID and implemented by Abt Associates and its partners: ACDI/VOCA, Action Africa Help International (AAH), Sheladia and Associates, and RSM Consulting. The program is designed to rapidly increase agricultural productivity in selected commodities, increase trade, and improve the capacity of producers, private sector and public sector actors in South Sudan to develop commercial smallholder agriculture. The FARM program will also foster economic growth to reduce poverty and food 2013 South Sudan PERSUAP | pg. 15 insecurity by improving the competitiveness of staple food value chains in which large numbers of smallholders participate. The project will invest in market access and/or vertical coordination and smallholder productivity, and in interventions that address the constraints faced by selected value chains and the private sector. The FARM program will initially focus on the three states of West, Central, and East Equatoria - areas of great agricultural potential, but where conflict has destroyed much of the agricultural production capacity. FARM Sudan has a satellite office in each of these three states in addition to its headquarters in Juba. One of the first activities was to distribute better quality seed to show the higher yield potential with better management. Aside from certified seed, the target of 900 acres in the first crop of the 2011 season was to treat the seed with insecticide for soil and sown-seed pests as well as a fungicide against soil borne diseases. Seed treatment is the most efficient use of pesticides as the quantities are much less than if they were sprayed on the crop. This is particularly true of the fungicides which are systemic and enter the vascular system of the plant. FARM primarily addresses agricultural sector productivity and value chain development to support GOSS’s principal goal of increasing food security. FARM Sudan is divided into three interrelated components: agricultural productivity, agricultural trade, and capacity building. It is designed to have an immediate impact on the livelihoods of farmers in the targeted zone of intervention while also building the foundation for sustainable economic growth through the agriculture sector. GOSS is therefore a key counterpart in the implementation of this project and FARM will work with GOSS at every level; from its extension workers within the Ministry of Agriculture and Forestry (MAF) at the national, state, county, and payam levels. As FARM is currently USAID’s most comprehensive agricultural program in South Sudan, it is in a position to provide leadership, guidance, and coordination for the development of the agriculture sector, including management of pesticides, while working with other implementing partners of USAID and other donors. During the first phase of the five-year project, FARM focuses on four staple crops: maize, sorghum, groundnuts, and cassava. This PERSUAP covers pesticide use as applicable to these crops in the field and storage, as well as pesticides designed for additional field crops and vegetables that comprise areas of current and future expansion of the FARM program, such as upland rice and common beans. The program will invest in interventions that address constraints faced by selected value chains and the private sector through three intermediate results (IR) and associated goals, provided below: IR. 1: Increase Agricultural Productivity in Selected Commodities in Target Areas IR 1.1: Increase adoption of improved technologies (storage, practices, breeding/varieties, natural resources management) IR 1.2: Improve public and private service provision that supports agricultural production IR 1.3: Improve producer organizations business and management skills IR. 2: Increase Trade in Selected Commodities in Target Areas IR 2.1: Increase smallholders access to market services (storage, finance, transport, information) IR 2.2: Improve and maintain “critical points” on high priority feeder roads IR 2.3: Strengthen the private sector, including SMEs, to deliver services to support marketing and finance. IR 3: Improve Capacity to Support Market-led Agriculture 2013 South Sudan PERSUAP | pg. 16 IR 3.1: Improve business and management skills of the private sector, including SMEs IR 3.2: Improve the capacity of the public sector to develop the enabling environment (policy, legislation, regulatory framework) and M&E to support agriculture IR 3.3: Strengthen public sector service delivery 2.2 Seeds for Development Program (S4D) S4D-AGRA The goal of S4D-AGRA is to establish a viable seed sector in South Sudan by investing in seed company development and improving public sector crop breeding and varietal release capacity. S4D-AGRA will strengthen breeding programs in maize, rice, cassava and cowpea at the Ministry of Agriculture and Forestry (MAF) and will work with at least two private companies to commercially produce certified maize seed. Four maize hybrids, two open pollinated maize varieties, and five open pollinated sorghum varieties have already been released. In addition, the project will work with the Food, Agribusiness and Rural Markets (FARM) and S4D-International Fertilizer Development Center projects to establish demonstration plots of new hybrid maize seed varieties along with fertilizer utilization. The project will train four MSc level students in plant breeding, develop breeding and release programs for up to eight food security crops and improve infrastructure at MAF research facilities. Development of Agent and Agro-dealer Networks and Crop Demonstrations being implemented by the IFDC Agricultural inputs markets in South Sudan are not developed, but wider availability and informed use of such inputs are essential to increased agricultural productivity. To help improve input supply and informed use, S4D, as implemented by IFDC: Supports the Establishment of a Network of Agro – dealers: This activity will be geared towards enhancement of supply and delivery of inputs to the farmers. Actions under this will include identification of agents at the village level and agro dealers; surveys and studies to establish what inputs are needed, provision of training on product knowledge and safe use, TOT, provision of Business Development Services (BDS), demonstrations, field days and other methods of information dissemination. While USAID will not provide pesticides per se to the farmers under S4D, it will help make them more readily available through the agro dealer shops. The farmers have limited knowledge about pesticides and one role of the program is to enhance product knowledge including safe use of pesticides. Includes a voucher system for inputs supplied to farmers. To increase and facilitate use of inputs, farmers will be provided with vouchers that can be exchanged for inputs (superior seeds and fertilizers) through accredited agents and agro dealers. Field days and establishment of demonstration farms will be undertaken in support of this activity. 2013 South Sudan PERSUAP | pg. 17 2.3 Rebuilding Higher Education in Agriculture (RHEA) RHEA focuses on increasing food security by improving the quality of advanced agricultural training at the following: the College of Natural Resources and Environmental Studies (CNRES) at the University of Juba (UJ) and the Faculty of Agricultural and Environmental Sciences (FAES) at the Catholic University of Sudan-Wau (CUS). Geographically, RHEA will be implemented primarily in the Central Equatoria, Western Bhar el Ghazal and Jonglei states, where the campuses of UJ and CUS are located, respectively. Activities in the program likely to support pesticide use are covered under intermediate results 2 and 3: IR 2: “Generate knowledge through relevant and quality research to address the unique agricultural and natural resource management needs of Southern Sudan” and IR3: “Create a quality university-based outreach program that addresses the unique food security and long -term agricultural and natural resource management needs of the Southern Sudan.” 2.4 John Garang Memorial University of Science and Technology (JGMUST) USAID is supporting John Garang Memorial University of Science and Technology (JG-MUST) in a long-term consortium that deploys Texas A & M University and Iowa State University expertise to assist JG-MUST with a comprehensive development and regional agriculture/natural resource management outreach program. This development partnership supports JG-MUST as a platform to train future leaders in South Sudan and act as an example of community service and development outreach. The consortium will establish a local presence to provide long and short-term technical assistance to JG-MUST, State Ministries of Agriculture and Livestock, and agriculturalists. This includes curriculum, university capacity and strategic development; state level agricultural strategy development; researching improved agriculture methods; and local community capacity development. Classrooms, equipment, and laboratories will be constructed and upgraded on the main campus, and productive facilities for demonstrating improved methods of production of poultry, dairy, vegetables, grains and fish will be constructed of an 80 acre demonstration/training farm. Finally, development projects to improve agricultural livelihoods and capacity of farmers, herders, fishermen and youth to engage in productive agriculture and natural resource management in Jonglei state will be implemented through a dedicated fund. The JG-MUST consortium will administer the development grants (up to a total of $1 million annually) for state rural development projects to improve agricultural productivity and natural resource management, selected by a joint steering committee including university, ministry, Jonglei state government, and community representatives. 2.5 Agricultural Credit Expansion in South Sudan (ACESS) This program will provide new Development Credit Authority (DCA) partial loan guarantee financing of individuals and non-sovereign enterprises operating in, or supporting the agricultural sector or engaging in agricultural-linked activities in Eastern Equatoria, Central Equatoria, Western Equatoria, and Jonglei states of South Sudan (collectively, the "Borrowers"). Lenders will not issue DCA-backed loans that support the procurement of pesticides loans until such time that a complete and current governing PERSUAP is duly reviewed and approved by USAID. (This PERSUAP, upon approval, satisfies this requirement). 2013 South Sudan PERSUAP | pg. 18 The financing of pesticides under the DCA Agreement must be consistent with the approved pesticides and safer use actions in the USAID South Sudan Pesticide Evaluation Report and Safer Use Action Plan (PERSUAP) for the Agriculture Sector. Lending to fund the procurement of pesticides will be limited to Borrowers receiving adequate technical assistance through existing USAID-funded agricultural development projects in South Sudan (e.g., FARM and S4D projects). Pesticide Guidelines derived from the PERSUAP will be produced by a designated USAID-funded agricultural development projects in South Sudan. Lenders will advise Borrowers of the requirements of the governing PERSUAP or derivative Pesticide Guidelines. Lenders will provide cognizant USAID project staff with the name and contact information of Borrowers to facilitate delivery of pesticide-related technical assistance and monitoring and evaluation. This technical assistance must address the environmental and technical soundness of funded activities. The above agreed-to DCA ACESS IEE language vis-a-vis the PERSUAP resulted from many discussions and conference calls with the Washington (DC) DCA office, BEO, Mission EG staff and the MEO in 2012. The PERSUAP's approval was a condition precedent to the ability to consider loans that might involve pesticide procurement or related uses for agricultural production. The reason for the caution is wellfounded, statutorily, and in development practice. The ACESS IEE is available at http://gemini.info.usaid.gov/egat/envcomp/repository/doc/38462.doc) 3. ENVIRONMENTAL & AGRICULTURAL CONTEXT 3.1 Priority geographic places or areas of projects intervention The FARM Sudan intervention area will primarily be focused in South Sudan’s Greenbelt, which is an area roughly the size of North Carolina and lies within Western Equatoria, Central Equatoria, and Eastern Equatoria (Figure 1). This is the most fertile and potentially productive zone in South Sudan for rainfed agriculture with a reasonably reliable rainfall with average annual precipitation of 1,350–1,600 mm (53–63 inches). In this belt, rain falls from April through October and allows two cropping seasons. Most of the vegetation is deciduous woodland forest and savannah mixture, interspersed with meadows, watercourses, rock outcrops, and cleared farms. This belt is characterized both by low market access and low population pressure on the land. The main economic activity is farming (mainly subsistence), with a wide variety of crops including sorghum, maize, millet, cassava, groundnuts, rice, sweet potatoes, bananas, oranges, pineapple, sesame, tobacco, sugarcane, soybeans, and vegetables (tomato, cabbage, lettuce, eggplant, onions, carrots, curcurbits). Some of the fruits and vegetables are insect-pollinated; wild honeybees are important to these crops. Wild bees are commonly kept by farmers who make apiaries out of hollowed-out logs to hang in trees. There can be two harvests of honey annually. 2013 South Sudan PERSUAP | pg. 19 RHEA, JGMUST, S4D; and ACESS intervention areas extend to Jonglei and Western Bahr el Ghazal states. Jonglei is characterized by extensive wetlands that include the Sudd region on the White Nile. The Sudd is rich in natural resources including wildlife and fisheries. According to the 2006 Livelihoods Profile, South Sudan’s climate is predominantly sub-humid. The region is characterized by a long wet season which runs from May to November in Jonglei, Upper Nile, and Bahr el Ghazal states, which receive between 700 and 1,300 mm of rainfall annually. Temperatures in South Sudan are typically above 25°C and can rise above 35°C, particularly during the dry season, which lasts from January to April. The hot, dry conditions trigger seasonal human and livestock migration to more permanent water sources (the toic), which serve as dry season grazing pasture, and for some ethnic groups, such as the Dinka, they also serve as fishing grounds. During the dry periods, resource use conflicts do arise. Western Bahr el Ghazal lies within the Iron stone plateau and is predominantly agricultural with a small portion lying in the flood plains where cattle is the main livelihood activity. Fig 1 Map of South Sudan’s Livehoods Zones and Project Area 3.2 Country Environmental Profile Geography, Topography & Ecological Zones. S.Sudan has an estimated population of about 8 million people and includes stretches of tropical and equatorial forests, wetlands, savannah and mountains. Terrain generally and gradually rises from plains in the north and center to southern highlands along the border with Uganda and Kenya 2013 South Sudan PERSUAP | pg. 20 Vegetation in the South is characterized by Sudanian woodlands, with lowland forest patches along the border with the Kenya, Uganda, Democratic Republic of the Congo (DRC), and Central African Republic and the Imatong Mountains in the extreme south, which sustain mountain forests. The White Nile, which flows North out of the highlands and drains much of the country, supports agriculture and extensive wild animal populations; The White Nile feeds the Sudd, a large wetland/floodplain of more than 100,000 sq km (15% of total national land area) that dominates the center of the country and which sustains agricultural and extensive wildlife populations. See figure 2 & 3, below, for more information and orientation. Figure 2: Southern Sudan Physiographic Zones 2013 South Sudan PERSUAP | pg. 21 Figure 3: States of South Sudan (colors indicate historical Sudanese provinces) Climate According to the 2006 Livelihoods Profile, South Sudan’s climate is predominantly sub-humid. Rainfall is favorable in the southwest, with Western Equatoria and highland parts of Eastern Equatoria receiving 1,200 to 2,200 mm of rainfall annually. The lowland areas of Eastern Equatoria, Jonglei, Upper Nile, and Bahr el Ghazal receive between 700 and 1,300 mm of rainfall annually. The southeastern tip of Eastern Equatoria receives the least rainfall, about 200 mm annually and is not cultivated. Temperatures in South Sudan are typically above 25°C and can rise above 35°C, particularly during the dry season, which lasts from January to April. The hot, dry conditions trigger seasonal human and livestock migration to more permanent water sources (“ toic”), which serve as dry season grazing pasture. For some ethnic groups, such as the Dinka, they also serve as fishing grounds. 3.3 Agriculture in South Sudan (Excluding Pest Management) Overview Cultivated area in South Sudan has historically ranged between a minimum of one percent and a maximum of two percent of the total area (i.e. 640 Leading Crops in East and West Equatoria States, Source: 2005 survey farmers by IITA of 226 By crop area: cassava 21%, groundnut 14%, sweet potato 14%, sorghum 9%, maize 8%, sesame 8%, rice 6%, finger millet 5%, cowpea 3%, common beans 2%. Most important commercial crops, by farmer raning: Eastern Equatoria sesame 19%, cassava 17%, maize 7%, sweet potato 7%. W Equatoria maize 30%, cassava 29%, rice 16%, and groundnuts 14%. 2013 South Sudan PERSUAP | pg. 22 000 – 1 300 000 ha)2. According to FAO-WFP (Crop and Food Supply Assessment Missions-CFSAM 19962007), about 950,000 ha are currently cultivated under cereals (sorghum followed by millet and maize), yielding less than 1 metric ton per hectare. Agricultural potential is high with about 90 percent of its total area considered suitable for agriculture, 50 percent of which is prime agricultural land. Soil and climate conditions allow for a wide variety of food and cash crops. The soil was formed from vegetation of a covering forest and overlies infertile lateritic bedrock. It is generally gray or black 30 cm to > 1.5 m thick and is a lateritic, sandy or clay loam. Agricultural production is, for the most part, based on small, hand-cultivated units, often farmed by womenheaded households. Following the loss of large numbers of draught animals during the civil war, FAO and NGO-based extension programs such as Norwegian People’s Aid have made, and continue to make, efforts to introduce or re-introduce animal traction by oxen on a small-scale in Central Equatoria, Western Equatoria, Lakes, and Bahr el Ghazal. However, despite the interest professed by farmers, the 2008 CFSAM concluded that the policy of providing ploughs and oxen free of charge was flawed because farmers tended to sell their oxen for slaughter after two or three years of work. Only in the Upper Nile districts of Renk, Melut and Wadakona, and to a limited extent in Malakal and Bentiu (Unity State), is tractor-farming conducted at a level that could be compared with the commercial farms of South Kordofan and Blue Nile States. An additional variable which interferes with widespread animal traction programs is that many of the tribal cultures in this region are opposed to using cattle as beasts of burden. Tractors are becoming more common and farmers can rent them by the hour at affordable rates. Smallholder farming systems in South Sudan encompass a wide range of sorghum landraces, with minor crops of maize (often grown close to homesteads for green consumption), bulrush millet, finger millet and upland rice according to location. Cassava is widely grown, especially in the center and south but also in the north-west, depending on access to planting material. In the north of South Sudan especially, but also elsewhere, in particular in areas of sandy soil and in years when the rains arrive late, groundnuts make an important contribution to household diet, and, as a cash crop, can contribute to household income. Okra, cowpea, green grams, bambara nuts, sesame, pumpkin and tobacco are also widely grown. In the south and central areas, and in parts of Western Bahr el Ghazal, cassava is the most important contributor to the household food economy, providing at least half of the carbohydrate ration; in parts of Central and Western Equatoria, sweet potato, yam, coffee, mango and papaya are also common. In addition, there is an increasing demand for vegetables especially in the urban centers and towns which has triggered production of vegetables by small scale farmers, particularly in the green belt. Most of the farmers currently using pesticides within the greenbelt are those involved in vegetable farming. The primary vegetables being grown are tomatoes, cabbage, kale, eggplant, onions and okra. USAID/South Sudan is supporting the development of agro dealers and ensuring that agro dealers are informed about the appropriate pesticides to use when cultivating the above-mentioned vegetables. 2 1 hectare (ha) is approximately 2.47 US acres. 2013 South Sudan PERSUAP | pg. 23 Inputs – Traditional sector Seeds: Most farmers use seed retained from their previous year’s harvest, and this is infrequently supplemented by purchases from the market or gifts from relatives or friends. As in previous years, FAO, GOSS and some NGOs are providing a certain amount of seed, principally to returnees and to those farmers classified as vulnerable. Amounts however are extremely small compared with the amount required by the farming community, and many farmers complain of seed shortages. The seed system mainly operated by GOSS has been mainly inactive over the years. Thus the amount of certified seed available to farmers has been negligible. However, in a rapid assessment conducted in April 2012 covering five agro-dealer shops, a range of treated seeds was stocked and these included maize, ground nuts, sorghum, sesame, cow peas and beans; while one shop had Basmati rice ordered by a customer. The five shops had also stocked a variety of vegetable seeds such as kales, spinach, carrots, cucumber, onions, tomatoes, eggplants, okra, green pepper, pumpkin, water melon and cabbage. These are an indication that the farmers are becoming more open to using improved seeds as well the broadening of the range of crops grown. Inorganic fertilizers: These are available on a very limited scale due to the fact that most farmers prefer to use farmyard manure for their small plots of vegetables. FAO has, for several years, distributed hand-tools to returnees and to a small number of those farmers classified as vulnerable. However, some of the returnees from Uganda and Kenya are engaged in farming as a business and apply the experience and knowledge they learned from these countries to the use of agro inputs in their farming operations. These farmers are growing small plots of vegetables and some shops are supplying them with seeds, insecticides, fungicides, and weedicides. SECTION 4: PER, PART 1: PEST MANAGEMENT NEEDS, PESTICIDES AVAILABLE, AND MANAGEMENT CAPACITY This section provides key information that serves as critical input to the 12-factor analysis (per 22 CFR 216.3(b)) undertaken in section 5. This includes the list of target crops covered and their pest management needs, and candidate pesticides to be assessed. Just as critically, it includes critical information regarding local context (e.g. knowledge and awareness of pesticide safer use principles) that are critical to decisions regarding which pesticides can be safely used in the South Sudanese context. 4.1 Identification of Target Crops The scope of USAID/South Sudan agriculture sector programming dictates that essentially all leading crops in South Sudan are or may be the target of project interventions. These constitute (1) the crops enumerated by the 2005 IITA survey (see section 3.3)—with the exception of sweet potato, for which there are no current support plans—and (2) additional crops identified as important during April 2012 interviews with Agrobusinesses in Juba, Yei, and Kajo Keji: pigeon peas, tomatoes, cabbage/kale, onion, and okra. The crops addressed by this PERSUAP are thus as follows: 2013 South Sudan PERSUAP | pg. 24 Cabbage Okra Cassava Onions Dry beans Pigeon peas Groundnut Sesame Kale Sorghum Maize Tomatoes Millet Upland Rice 4.2 Pest Management Needs for Target Crops Pest management needs for each target crop—as well as those for seed and grain storage-- were catalogued via field interviews as well as desk research. The results are documented in the crop-specific Pest Management Needs and Suggested Control Methods tables of Annex A. As documented therein, effective pest management is critical to achieving agricultural productivity objectives for each crop, and while non-chemical control methods have a critical role to play, there is a need for complementary chemical controls in many instances. 4.3 Traditional pest control practices; Current State of IPM Awareness & Practice Due to the protracted war in South Sudan, formal Sudanese government efforts to promote IPM across Sudan (which then included South Sudan) made little or no impact in the south, where only traditional crop and animal protection measures were practiced. However, also due to the war, small-scale farmer usage of pesticides has until recently been virtually nonexistent, and these traditional crop and animal protection measures do embody core IPM practices, e.g; Non-chemical controls: Use of cultural practices such as using grass mulch to divert termites from the crop (the digested mulch also improves soil quality); scaring away mammal and bird pests (although monkeys are typically herded into nets and then killed); active harvest (collection) of certain insect pests such as termites, locusts, and the green katydid for food; and the use of indigenous crops and animals that are the least susceptible to pests, Use of (traditional) botanical pesticides; e.g. : o Neem leaves are put in stored grain. o A neem spray material is made of neem plus bar soap and mixed with dried chillies that have been crushed and pounded and left to soak for a day. The spray material is strained and then applied mostly to vegetables. o Termites, which attack older crops rather than seedlings, are controlled using a homemade concoction made from ½ tin water + hand soap + 1kg local tobacco leaves ground up. The 2013 South Sudan PERSUAP | pg. 25 o mixture is left to soak overnight and then boiled the next day for 30 min. It is poured into an opened termite mound to kill the queen. Kinu seeds are used to control maize weevils, which are important pests of stored maize. The seeds, which are as small as sesame seeds, are mixed with the maize. 4.4 Current pesticide use/availability Use of pesticides in South Sudan is on a limited scale and most of the agro dealers shops are quite new having been established about 2 years ago. The shops stock a variety of pesticides (fungicides, insecticides & herbicides), veterinary products, and farm inputs which include certified seeds, fertilizers and farm implements. In an April 2012 survey of five agro dealer shops located in Juba, Yei, Morobo Kajo Keji, all five shops reviewed tended to stock the same type of pesticides—primarily pyrethroid plant protection products due to their short field persistence and affordable pricing. Pyrethroids are also broad spectrum and can be used on many insect pests. Mancozeb was stocked in all the five shops since its can be used on a broad spectrum of fungal diseases. Interviews with the sales agents/agro dealers revealed that South Sudanese farmers were gradually picking up the use of pesticides. It was also reported that some of their clients came from a radius of 30 km, with some customers in Juba coming from as far as Malakal, Upper Nile State. There is every reason to believe this trend will continue, as more farmers take up permanent agriculture over the current slash and burn system and agricultural markets and market access strengthen. The table below inventories the pesticides actually in use in USAID target intervention areas, and the reported uses to which they are put. Note that many of the pesticides in use are rejected by this PERSUAP; likewise the uses to which these pesticides are being put are not necessarily the specific pesticide uses recommended, by this PERSUAP. This information is derived from the above-referenced survey of 5 agro dealer shops located in Juba, Yei, Morobo Kajo Keji survey in April 2012. Table 1: Pesticides Currently Used in USAID Project Implementation Areas NOTE: For clarity, pesticides rejected by this PERSUAP via the forthcoming 12-factor analysis are so marked. Such pesticides are rejected for one of the following reasons: they are not registered by EPA, are Restricted Use Pesticides, are Class I acute toxicity, or are Class II toxicity. Trade Name & other Details Active ingredient EPA Reported use/Indicated use on label Class. Actellic 50 EC pirimiphos-methyl II, III Used on stored grain product insect pests of maize, rice, wheat, and grain sorghum. Albafaz albendazole 10% W/V Drench (orally administered drug) for worms in (an oral drug, not a pesticide) cattle, sheep, goats and camel Ambush Insecticide cypermethrin 5% EC II, III Used on a wide range of pests such as aphids, white flies, caterpillars on cotton, vegetables, The use of cypermethrin is cereals and also on vectors such as ticks, rejected by this PERSUAP mosquitoes, lice etc Ant Killer - Manufacturer, 24% chlopyrifos II Broad spectrum with contact and vapour but Murphy E.A mainly stocked for control of termites Bulldock 0.05 GR beta cyflulthrin 0.5g/Kg II Used to control maize stalk borer. Scouting for the pests weekly 2-7 weeks after emergence Contra Z Termiticide chlorphyrifos 50% and II Used for subterranean termite control in (pre cypermethrin 5% & post construction activities) 2013 South Sudan PERSUAP | pg. 26 NOTE: For clarity, pesticides rejected by this PERSUAP via the forthcoming 12-factor analysis are so marked. Such pesticides are rejected for one of the following reasons: they are not registered by EPA, are Restricted Use Pesticides, are Class I acute toxicity, or are Class II toxicity. Trade Name & other Details Active ingredient EPA Reported use/Indicated use on label Class. CYPER LACER 5% EC Insecticide Manufacturer _ Isagro (Asia) Agrochemicals , Distributor Nsanja family Store Ltd DEGESCH Quickphos – Manufacturer United Phosphorus LTD, INDIA?? DERA Blue Cross (Malathion Dusts ) Manufacturer – DERA Chemical Industries Dithane M-45 WP Dow Agro science Doom Insecticide The use of cypermethrin is rejected by this PERSUAP cypermethrin tech - 5.44 % WW The use of cypermethrin is rejected by this PERSUAP aluminum phosphide, 560g/Kilo The use of aluminum phosphide is rejected by this PERSUAP except when fumigation services are contracted from specialized providers with all necessary training and equipment malathion 2% dust (contains 20 gms of Malathion/Kilo of formulation mancozeb 750g/Kg II, III I Broad spectrum for a variety of pests in different crops such as cotton sucking insects and bollworms, vegetable – caterpillars, beetles, sucking insects, maize cereals, soya beans. Coffee – bud worms, leaf minor Used on a wide range of stored products for control of eggs/larvae, pupae, and adult of a wide range of pests such as Angoumous grain moth, been weevil, Lesser grain borer, maize weevil, stored product mites. III Used for safe storage of grains III A preventive spray program of diseases in I Used on agricultural and horticultural pests II, III Used on pests in a variety of crops: Cotton, Coffee, lettuce, tomatoes, soya beans, potatoes, celery, cabbage, deciduous fruits Broad spectrum insecticide on all types of crops but stocked for the maize stalk borer. Insecticide/termiticide used for crops, livestock, termites. Application is best at source of the problem, also used in public control operations for pests. It is toxic to bees and fish. Broad spectrum acaricide and insecticide for ticks, tse tse fly, lice, mites, fleas, flies used on pigs poultry and sheep, goats, cattle Dudu Cypher EC 100% EC dichlorvos/DDVP W/V The use of dicholoros is rejected by this PERSUAP cypermethrin 5% EC DURSBAN The use of cypermethrin is rejected by this PERSUAP chlorpyrifos 480g/l II DURSBAN 480g/L m/m Distributed by Bokoola Chemicals) Uganda chlorpyrifos 480g/l II Ectomin 100 EC Registrant Norvatis South Africa cypermethrin 80% II, III The use of cypermethrin is rejected by this PERSUAP chlorpyrifos II Used on buildings, prefabricated /timber houses, and treatment of termite nests in lawns, gardens, and sugar cane. It is a special formulation, which is long lasting when applied in the soil and readily breaks down in the open air and sunlight. Early post emergence herbicide for grasses, sedges, broad leaf weeds in rice fields III Used for control of bedbugs Gladiator 4TC Manufacturer - Dow Agro Chemicals, Kingslynn, UK HASUNIL 600 EC Reg. No PCPB 0255, manufactured by Hangzhou Agrochemical Industries, china KAYAZINON EC Distributed by DERA thiobencarb 400 mg/l and propanil 200g/l diazinon 600g/l The use of diazinon is rejected 2013 South Sudan PERSUAP | pg. 27 NOTE: For clarity, pesticides rejected by this PERSUAP via the forthcoming 12-factor analysis are so marked. Such pesticides are rejected for one of the following reasons: they are not registered by EPA, are Restricted Use Pesticides, are Class I acute toxicity, or are Class II toxicity. Trade Name & other Details Active ingredient EPA Reported use/Indicated use on label Class. by this PERSUAP Lamdex super Distributed by lambda-cyhalothrin – 15g/l III Used on a wide range of insect pests such as BALTON Uganda Ltd, Reg. in chlorpyrifos 300g/L cutworms, thrips, aphids, white flies, Uganda as caterpillars in vegetables, irish potatoes, rice Ugc/2006/000561/In/R Lava® Insecticide, Distributed by dichlorvos/DDVP 100% EC I Diamond Black moth, at times use not very Nsanja Agrochemicals Ltd, specific – (told this in second shop in Juba) but Uganda The use of dichloros is label indicates wide use of the product such as rejected by this PERSUAP for cutworms, leaf rollers, pyrille, hairy caterpillars, cabbage looper & red pumpkin beetle. It is highly toxic to bees. MALATAF 57EC malathion 57% W/V III Used on a wide range of crops for control of Distributed by Nsanja Family (mimimum) aphids, mites, scales, borers, worms, thrips, Store LTD leaf minor, beetles etc Manufacturer, RALLIS INDIA LTD NOROTRAZ 12.5% Manufacturer, amitraz 12.5% W/V II Acaricide (ticks, lice, and mange in livestock, NORBROOK Kenya The use of amitraz is rejected sheep & goats by this PERSUAP OSHOTHANE Manufacturer – mancozeb 80% W.P (active III Inorganic fungicide used on many crops for INOFIL Chemicals Co, India Reg. in ingredients: early and late blight in tomatoes and Irish Uganda as Manganese – 16% potatoes, dry rot in , cucurbits, beans, peas, Zinc – 2% onions, mangoes (needs rain or irrigation once Ethylene Bisdilhiocarbomate – applied for it to be effective for fungus in the 62%) soil) rusts and Downey mildews in cruciferae. Inert ingredients 20% Oshothion Manufactured by 50% W/V malathion III Contact organophosphate that is broad HALLIS LTD?? And \distributed by spectrum for insect pests such as aphids, thrips ESCO Chemical Industries in in vegetables and flowers. Moderately to Kenya?? highly toxic to fish PYRINEX 48 EC Distributed by chlorpyrifos 480g/L II Broad Spectrum insecticide on white flies, BALTON Uganda Ltd, Reg. in aphids, termiticide Uganda as Ugc/2006/000561/In/R Rindomil Gold 40g + 640g/Kg WP mancozeb and metalaxyl III A systemic fungicide of the Oomycyte fungi (normally stocked but out of used on fruits, potatoes and vegetables for stock as of review trip). Syngenta early and late blight.. Also good for control of Crop protection soil borne diseases ROCKET Insecticide profenofos 40% ? Indicated use on label is on the cotton cypermethrin 4% bollworm but it is stocked for use on maize (most probably on the maize stem borer). The use of profenofos and Pesticide stocked on request by some farmers cypermethrin is rejected by who had prior knowledge of its use on maize. this PERSUAP Sevin WP 850g/kg carbaryl 85%m/m II Used in control of domestic pests STOP – Vermin Powder 0.5% cyphenothrin based II Crawling insects such as cockroaches and ants (dustable powder) SUPA CYPER Insecticide EC cypermethrin 5% EC II, III Used on a broad range of insect pests Sypertix 10% EC Manufacturer, NOORBROOK , England, Distributed by NOORBROK Kenya The use of cypermethrin is rejected by this PERSUAP alpha-cyermethrin 10% W/V EC II, III Acaricide for veterinary use on ticks. The use of alpha-cypermethrin 2013 South Sudan PERSUAP | pg. 28 NOTE: For clarity, pesticides rejected by this PERSUAP via the forthcoming 12-factor analysis are so marked. Such pesticides are rejected for one of the following reasons: they are not registered by EPA, are Restricted Use Pesticides, are Class I acute toxicity, or are Class II toxicity. Trade Name & other Details Active ingredient EPA Reported use/Indicated use on label Class. LTD. Reg. No. PCPB (CR) 0765 is rejected by this PERSUAP TANGFOR 40 EC 40% W/V dimethoate II For crops – cotton, chillies, groundnuts, NSANJA Chemicals LTD Mustard, wheat, vegetables (potatoes, brinjals, Manufacturer - RALLIS INDIA LTD Okra, cabbage, onions, fruits (bananas, citrus, Mango) Weedal 480 SL isopropylamine salt of III Systemic non selective herbicide used on a Manufacturer: Hangzhou glyphosate 480g/l wide range of annual, biennial, perennial broad Agrochemicals (U) Ltd leafed weeds, grasses, sedges in Babycorn fields Willosate 360 SC glyphosate 360g/Litre III Systemic & contact herbicide used in fields Manufacturer WILLWOOD LTD, HONGKONG, distributed by Agriscope 4.5 Available PPE and Application Equipment Each of the shops stocked some Personal Protective Equipment (PPE such as gumboots, gloves, dust masks and overalls. Dust masks cost between 6 – 15 SSP; gloves between 15 – 25 SSP; gumboots between 35 – 45 SSP, and overalls at 50 SSP. A complete PPE kit sells for 190 SSP in one of the shops. Another shop includes a raincoat (water proof) as part of the PPE. All of the shops stock sprayers, the most common being 1 and 2 liter hand sprayers. The knapsack sprayer labeled “CPC” is the most common, but the manufacturers name is not indicated. Other sprayers in stock are labeled as “GP 15”, but again the manufacturer’s name is not indicated. Both of the knapsack sprayers have pressure control regulators for shallow and flood jet sprays and a double filter system. Other available sprayers are 5, 6, 8, 15, 16, or 20 litres. Spare parts for the nozzles are also stocked, and in Morobo Agrovet, parts for the spray gun are also stocked. Prices of sprayers in Morobo are: 2 litres at 30 RSSP (smaller sprayers have a single adjustable nozzle; 1 litre at 15 RSSP; 5 litres at 80 RSSP and 20 litres at 170 RSSP (this has two nozzle types, fine and broad). 4.6 Pesticide Knowledge and Awareness. Surveyed agro-dealers (April 2012) reported that farmer pesticide knowledge and awareness is limited, with most being first time pesticide users. This is consistent with brief farmer interviews conducted in 2011. No farmer interviewed had any training in pesticide use. No farmer interviewed used any special clothing or equipment to protect themselves while applying pesticides. Partly empty pesticide bottles were stored on the floor of homes without regard to the dangers of children getting into them. Farmers were not aware of proper disposal methods for empty pesticide containers. 4.7 Agro-dealer Safer Use Awareness & Extension to Customers Given very low levels of farmer pesticide awareness/training, the agro dealer shops therefore serve as the first opportunity for farmers and customers to learn about pesticides and the hazards associated with them. All the shops visited (April 2012) had adopted the practice of providing a brief introductory session to each of their customers which covers general risks and hazards associated with pesticides, followed by the safe use 2013 South Sudan PERSUAP | pg. 29 and storage of the pesticides. Customers are encouraged to provide feedback as to whether or not the pesticides were effective for the purpose they had been procured. (A case was reported of a miscommunication at purchase that led to farmer buying the incorrect product to spray on vegetables, and which all withered due to use of the wrong dosage. ) Generally, the agro dealers visited have fairly strong product knowledge and relevant training (one has a BSc in Horticulture, one is trained in veterinary medicine and two are agriculturalists at diploma level). The agro dealers train their sales agents and are a point of reference in case of any queries. All the sales agents have at least completed secondary education and have/or are undertaking several short courses including the one being offered by IFDC/AGMARK. The products are not repacked at the shop and the only product reported to be repackaged were the Quickphos tablets in one shop. The agro dealers are also sensitive about expiration dates and they always ensure that products they stock are not about to expire. These shops aside, however, there will certainly be a temptation for other dealers to repackage pesticides. However, two of the products in two shops were found to be about to expire, while one agro dealer reported to have handled an expired pesticide (Mancozeb) which they buried, but far from human settlements. The labels provided clear instructions for storage, use, handling, and disposal as well as the product’s shelf life, which in most cases was two to three years from date of manufacture. The practice for all of the agro dealers is to buy limited quantities of the pesticides preferred by their farmer clients. The agro dealers recognize the low awareness levels among their customers on matters pertaining to pesticides and pesticide use. They therefore create awareness on pesticides use to each customer before selling the products. Most of the agro dealers reported doing some field follow up activities to enhance knowledge and awareness, but of course this is limited due resource constraints. In Kajo Keji, they hold community dialogues with the farmers to enhance awareness. All the 5 shops have awareness creation materials (posters) about various pesticides which include: Safe disposal of insecticide containers Safe purchase of pesticides Guidelines of emergency measures in case of pesticide poisoning Pesticide pictograms (warnings and advice) Hazards Classification (WHO). 4.9 List of Candidate Pesticides A final key input to the PER analysis is the full list of CANDIDATE PESTICIDES analyzed for this PERSUAP (i.e. the pesticides being evaluated for suitability of procurement, use or support with USAID funding). Candidate pesticides consist of : 1. The pesticide active ingredients identified as available in the target intervention regions by the April 2012 survey of 5 agro-dealers 2. Pesticides previously endorsed for use by the draft FARM PERSUAP, which must now be re-evaluated to verify registration status and continued suitability. 2013 South Sudan PERSUAP | pg. 30 The resulting candidate list is as follows. NOTE that the list of pesticides recommended for approval under this PERSUAPis a subset of this list, consisting of the candidate pesticides NOT eliminated by the PER analysis that follows. The approved pesticides are presented in Section 6, the Safer Use Action Plan: Insecticide Fungicide Acetamiprid alpha cypermethrin amitraz azadirachtin (also a fungicide) Bacillus thuringiensis-Bt beta cyfluthrin carbaryl chlorpyrifos clothianidin cypermethrin cyphenothrin diazinon dichlorvos dimethoate imidacloprid indoxacarb insecticidal soaps lambda cyhalothrin Malathion pirimiphos methyl (also pyrimiphos methyl) profenofos spinosad sulfur (also a fungicide) thiamethoxam azadirachtin (also an insecticide) mancozeb metalaxyl sulfur (also an insecticide) thiram Fumigant aluminum phosphide Herbicide diuron fluazifop-p-butyl glyphosate imazapyr pendimethalin propanil thiobencarb Bird Repellant methyl anthranilate Veterinary Applications albendazole 2013 South Sudan PERSUAP | pg. 31 SECTION 5: PER, PART 2: THE 12-FACTOR ANALYSIS This section takes as key inputs the information compiled in Section 4 and undertakes the analysis of the 12 factors required by 22 CFR 216.3(b) to assess the candidate pesticides for use/support with USAID funds, and to determine the specific conditions attendant to their use. Factor A: US EPA Registration Status of the Proposed Pesticides USAID programs are limited to procuring, using and/or supporting the use of pesticides containing active ingredients products registered by the United States EPA for the same or similar uses. Emphasis is placed on “similar use” because a few of the crops and their pest species found overseas are not present in the US. Therefore, pesticides may not be registered for the “exact” use anticipated by the USAID project. Moreover, EPA designates some products as Restricted Use Pesticides (RUPs). EPA classifies a particular pesticide as restricted if it determines that the pesticide may be hazardous to human health or to the environment even when used according to the label. In the US, the pesticides and active ingredients that are labeled RUPs can only be sold to and used by certified applicators or persons under their direct supervision, and only for those purposes covered by the applicator's certification (such as for row crops, or tree crops, or structural pests, etc.) 22 CFR 216 requires a full environmental assessment before use of an RUP can be supported with USAID funds, except for RUPs so designated solely for reason of user hazard. RUPs designated solely for reason of user hazard can be authorized for procurement or use with USAID funding on the basis of a user hazard analysis in the IEE (PERSUAP). In this case, the recipient government must be made aware of the hazard, and a mitigation action will be made and implemented with additional technical assistance. However, the analysis of pesticide knowledge and awareness in South Sudan (see section 2.4) clearly indicates that it would NOT be appropriate to authorize USAID funds to support user-hazard RUPs in South Sudan; see discussion under Factor B “Basis for Selection.” In addition to US EPA registration, pesticides procured or supported with USAID funds must be legal (registered) in the host country. In the case of South Sudan, a pesticide registration system is not yet in place. As described under Factor B, Uganda/Kenya registration status is used instead. Table B-1 (Annex B) provides the EPA registration status of all candidate pesticides, including whether a pesticides is restricted-use (RUP). Under this Factor A analysis, any pesticides that are NOT EPA-registered are disallowed, as indicated by the strikethroughs to the candidate list below. RUP pesticides are also disallowed; this may be indicated by strikethrough of an active ingredient, meaning that all formulations are disallowed, or where status is indicated by a restriction. 2013 South Sudan PERSUAP | pg. 32 Candidate pesticides list showing pesticides rejected due to US EPA Registration or RUP Status Insecticide Fungicide acetamiprid* alpha cypermethrin amitraz azadirachtin* Bacillus thuringiensis-Bt* beta cyfluthrin carbaryl chlorpyrifos (formulations over 10% may be RUP) clothianidin* cypermethrin cyphenothrin diazinon/ Kayazinon 600g/L dichlorvos/DDVP dimethoate imidacloprid* indoxacarb* insecticidal soaps* lambda cyhalothrin (formulations over 10% Active Ingredient (AI) may be RUP) malathion pirimiphos methyl* (also pyrimiphos methyl) profenofos propanil spinosad* sulfur* thiamethoxam* azadirachtin* mancozeb* metalaxyl* sulfur* thiram* Fumigant aluminum phosphide* (except if contracted from specialized 3rd-party providers with all necessary training and equipment.) Herbicide diuron* fluazifop-p-butyl* glyphosate • isopropylamine salt of glyphosate imazapyr* pendimethalin* thiobencarb* Bird Repellant methyl anthranilate* Veterinary Applications Albendazole (an oral drug, not a pesticide) *endorsed for use in the predecessor draft FARM PERSUAP Commentary: All of the pesticides endorsed for use in the predecessor draft FARM PERSUAP remain EPAregistered. Of the additional active ingredients identified during the April 2012 visits and interviews conducted identified in local agro-input shops, two—alpha-cypermethrin and cypermethrin—do not meet the requirements of Factor A. EPA has never registered products containing alpha-cypermethrin, and currently registers cypermethrin for household and industrial uses, but not for agricultural uses. In addition, formulations of chlorpyrifos and lambda cyhalotrin over 10% Active Ingredient (AI) may be RUP. Any endorsement of these AIs must thus be limited to formulations less than 10% AI. Additional analyses reveals that all formulations of aluminum phosphide are RUP, and are highly toxic Class I fumigant pesticides. EPA labels all similar pesticides containing 600g/L formulations of diazinon as RUP. Therefore this PERSUAP rejects the use or support of both aluminum phosphide and diazinon. The sole exception is that aluminum phosphide fumigation can be contracted from specialist 3rd-party providers who possess all necessary training and specialist equipment. 2013 South Sudan PERSUAP | pg. 33 Factor B: Basis for Selection of Pesticides As noted, the candidate pesticide list (section 4.9; table above) contains pesticides from 2 distinct sources: Pesticides endorsed by the predecessor draft FARM persuap (marked by asterisk (*) in table above) Additional Pesticides (active ingredients) identified as being available and in active use in the USAID intervention areas, based on April 2012 visits to 5 agro-input dealers. To this candidate list, the following criteria are applied to develop a final list of approved pesticides. These criteria are applied over the remaining factors of this PER analysis. EPA Registration Status (discussed under Factor A, above). Pesticides must have active registration in the US for the same or similar crops and pests. Toxicity/Safety. Pesticide selection must be appropriate to the South Sudanese context. Currently, this context is characterized by: Absence of effective pesticide regulation and enforcement; Scarcity of affordable, comfortable PPE; It must be assumed that farmers in South Sudan will wear only the most basic of protective clothing and equipment Limited implementation of good plant health, soil health, and water management practices; Little or no understanding of IPM theory or principles; Inability to read or comprehend pesticide labels and safety warnings due to illiteracy; Inability to properly identify pests, their population levels, and economic thresholds; Inadequate knowledge about pesticides and their dangers; Porous national borders likely to encourage illegal entry and trade in pesticides Because of the limited knowledge about the hazards of pesticide use, little availability of personal protective equipment, and absence of government oversight capability, only general use pesticide formulated products can be endorsed for use. Further, class III and IV pesticides are preferred; extra scrutiny is placed on class II products, which are endorsed only in the following limited circumstances: 1. The classification is for irritation rather than toxicity per se (eg, azadirachtin, insecticidal soap) 2. The classification is for products with higher concentrations of the AI, so if available products/formulations are known to be lower concentration, or lower concentrations formulations are mandated, they will fall into class III. (AIs in this category include, e.g. chlorpyrifos and lambda cyholothrin). These same products are classified in toxicity class III by WHO. 3. When the mode of use (e.g. restriction to seed treatment) limits adverse human or ecotoxicological effects. Excluded are all EPA Toxicity Class I (extremely toxic) and most Class II (highly toxic) products, as are all EPA RUPs, AIs that are internationally-classified as Persistent Organic Pollutants (POPs) or as Prior Informed Consent (PIC) chemicals by the Rotterdam Convention, and known carcinogens. Need. The pesticide must serve as a known pest management need for target FARM crops/activities. 2013 South Sudan PERSUAP | pg. 34 Efficacy in local circumstances. Pesticides must be shown to be effective for crops/seeds under climates/conditions similar to those found in USAID/South Sudan intervention areas Availability; Registration in Kenya or Uganda. Pesticides must be available in South Sudan, Kenya and/or Uganda, and registered in Kenya or Uganda. As noted under Factor A, pesticides procured or supported with USAID funds must be legal (registered) in the host country—however, in the case of South Sudan, a pesticide registration system is not yet in place. Neighboring Uganda and Kenya, however, have reasonably effective pesticide institutions and processes which, prior to registration, require mandatory field research in conditions generally similar to those found in South Sudan to evaluate and ascertain efficacy rates on pests, as well as the toxicity of samples to human health and the environment. Registration in one of these 2 countries is thus used as a proxy for South Sudan registration. Each pesticide endorsed for use under the draft FARM PERSUAP was re-evalated against these criteria over the course of the 12-factor analysis presented in this PER. Factor C: Extent to Which the Proposed Pesticide Use is Part of an IPM Program Direct pesticide use and direct extension activities tby USAID/South Sudan agriculture sector projects will be governed by IPM-based crop- and pest-specific pest management plans (PMPs). The crop-by-crop pest and control measures tables in Annex A are intended to serve a drafts of these plans, which will be refined by agriculture sector implementing partners. The current state of IPM awareness (section 4.3) and farmer education does not support the more sophisticated forms of IPM. Pest management plans will necessarily be at a level of technical complexity appropriate to the local context, but will embody core IPM principles: emphasis on use of non-chemical controls (building on existing practices, see section 4.3), with need-based, targeted use of relative-leasttoxicity pesticides. Support for formal agricultural education will fully incorporate IPM as the basis for effective pest management. Implementing Partners will often have far less than full control over the actions of beneficiaries in the field. In these situations, IPs will promote and support PMP-based pest management to the greatest practicable extent. Factor D: Proposed Method or Methods of Application, Including the Availability of Application and Safety Equipment Key points for analysis under this factor are: Crop protection products will be predominantly applied by hand-held or knapsack sprayer. Note that most sprayers currently available for sale are of poor quality, prone to leaks and with poor dosage control. Water sources are in many areas limited and care must be taken to prevent contamination of water points and potable water containers. 2013 South Sudan PERSUAP | pg. 35 Some PPE is available in Pesticide shops, but this is limited and certainly not adequate for highertoxicity pesticides. All of these points reinforce the importance of restricting pesticide procurement/use/support by USAID/South Sudan agricultural projects to low-toxicity the EPA class III and IV product, with very limited exceptions for class II. In further consequence: Whenever USAID/South Sudan agricultural projects provide, support or recommend pesticides for use, they will ensure that appropriate personal protective equipment is available and, to the degree possible, require its use. Projects that are directly using, procuring or supplying pesticides will also assure that quality application equipment is available and local capacity for its maintenance. Appropriate PPE will be dependent on the specific pesticide and method of planting, but in most cases will consist of broad-brimmed hat, long-sleeved shirt, long pants, gloves, and full-coverage shoes and, in many cases, goggles. Note that even when seeds are procured pre-treated, it will still be necessary for farmers to handle pesticidetreated seed during transfer operations and planting. Appropriate training and strong polystyrene gloves will be provided to mitigate health and environmental risks. Training shall specifically cover: Covering all sown seeds with soil. Not touching eyes, lips or skin or eating or smoking while in the act of sowing the treated seed. After sowing, washing gloves and hands from a pail of water brought to the field for this purpose Upon reaching home, changing out of their clothes which should be washed separately from the normal laundry. If broadcast onto the soil, rather than placed in furrows and covered with soil, would constitute a significant hazard to birds and other wild animals that may feed on the treated seed. Therefore all the seeds must be covered during sowing. If IPs directly undertake or support beneficiaries undertake seed treatment, seed treatment drums must be provided, careful training given in appropriate technique, and the treated seeds must be color-dyed. Factor E: Any Acute and Long-Term Toxicological Hazards, Either Human or Environmental, Associated with the Proposed Use, and Measures Available to Minimize Such Hazards Table B-1 in Annex B summarizes the toxicological profile of the full candidate pesticide list. Extended pesticide-by-pesticide discussion of toxicology is also provided in this annex, along with measures to mitigate any identified toxicological hazards, such as training of applicators, use of protective clothing, and proper storage. For situations in which they have direct control over pesticide use, IPs will be required to implement/observe core risk mitigation measures s identified in the summary section of each extended pesticide profiles. In situations in which their control is less complete, IPs will be required to take all practicable measures to support and promote implementation of these measures. 2013 South Sudan PERSUAP | pg. 36 This toxicological information in Annex B (supplemented by additional information in the Annex B pesticide profiles allows screening of the candidate pesticides against additional criteria enumerated under Factor B. Beyond the candidate pesticides already eliminated due to EPA registration/RUP status, the following pesticides are eliminated by this additional toxicology screening: amitraz (WHO class III but PAN bad chemical actor; reproductive/developmental toxin; skin absorption possible) dicholoros/DDVP (EPA class I & II acute toxicity) profenos (EPA class I & II acute toxicity) diuron (known carcinogen) In addition, this screening results in restrictions on a set of AIs: chlorpyrifos & lambda cyhalothrin are limited to formulations of less than 10% AI (higher concentrations are often RUP) metalaxyl & thiram are restricted to SEED TREATMENT ONLY neonicatinoids acetamiprid; clothianidin; imidacloprid and thiamethoxam may not be used during crop flowering on crops pollinated by honeybees and are subject other use restrictions.) Note that the toxicity profiles in Annex B also provide a key reference for development of crop- and pestspecific pest management plans. Factor F: Effectiveness of the Requested Pesticides for the Proposed Use Pest management needs are documented on a crop-by-crop basis in Annex A. For each crop, the tables in Annex A identify pest-specific suggested chemical controls (pesticides.) Three different sources of data have been used to specify these proposed uses; while none is perfect individually, together they offer a high degree of assurance that the pesticides will be effective for their proposed use: The proposed pesticide uses are consistent with their EPA registrations; in each case, US EPA has registered these pesticides for use on the same or similar crops and against the same or similar pests. Such registration requires that the effectiveness of the pesticides be demonstrated. Admittedly, this demonstration of effectiveness is witn the US agro-environmnetal context. All pesticides endorsed for use by the 2011 FARM PERSUAP are also registered for use on the same or similar pests in Kenya and/or Uganda. Such registration is made only after extensive research undertaken by the agricultural research institutes in those countries, including Kenya Agricultural Research Institute (KARI), National Agricultural Research Organisation (NARO) of Uganda, the International Center for Insect Physiology and Entomology (ICIPE). Kenyan and Ugandan registration is, however, likewise not a perfect indicator of effectiveness, in these registration processes each pesticide is tested in the field over three seasons, but only on one crop. The identity of the crop is not recorded. Finally, each of the recommended uses has been cross-checked against information provided by pesticide label, and registration and label information was supplemented from published literature or recommendations available from other countries as well as from the Internet. 2013 South Sudan PERSUAP | pg. 37 In general, development of resistance is a key threat to pesticide effectiveness. As documented in 4.4, due to the long standing conflict, farmers in South Sudan have not used pesticides in recent decades. As a result, resistance is not expected to be an issue initially. But the introduction of pesticides and continuous use over time enhances the probability that resistance will develop, particularly in vegetable culture. The use of pesticides within an IPM framework, as required by this PERSUAP, is a key measure to prevent resistance development. Monitoring is required, however, to confirm that the pesticides being recommended will perform as expected in South Sudan. Evaluation of pesticide efficacy (and of pest management plans more generally) is a required part of demonstration plot management; monitoring for and reporting of resistance development is a required element of SUAP compliance reporting. Factor G: Compatibility of the Proposed Pesticide use with Target and NonTarget Ecosystems For each candidate pesticide, Table B-1 in annex B provides toxicology information for a range of non-target organisms: mammals (for which human toxicity results are proxies), birds, fish, aquatic invertebrates, beneficial arthropods, honeybees, earthworms, mollusks, crusteacea, and phytoplankton. (The US EPA registration process requires that toxicity of a pesticide against each of these classes of organisms be assessed by a standardized test.) Additional information is provided in the pesticide profiles that follow the table. In addition to its toxicity to the class of non-target organism in question, the persistence of a pesticide in the environment and its mobility (e.g. potential to enter groundwater) strongly affect how significant adverse effects on non-target organisms may be. Annex B also provides this persistence and mobility information. Taken together, this information makes clear that some of the pesticides recommended for approval under this PERSUAP are highly toxic or very highly toxic to and do represent threats to: Aquatic organisms. Birds Bees. The individual pesticide profiles in Annex B specify basic precautions and limitations on use that, if observed, should reasonably minimize threats to acquatic organisms and birds. Regarding threats to bees, honeybees are important pollinators of a number of crops, and as such play a key role in agricultural productivity. Bees cannot only be poisoned on contact with contaminated crops, but also can carry contaminated pollen and nectar to the hive, potentially killing off the whole colony. Risk is reduced by spraying crops pollinated by bees in the early evening when bees are in their hives and warning beekeepers of spray events so that they may protect/relocate hives. However, this does not address the suspected role of neonicotinoid insecticides (acetamiprid, clothianidin, imidacloprid and thiamethoxam) as contributing causal agents of honeybee colony collapse disorder (CCD) in Europe and N. America. Although acute toxicity of neonicotinoids to bees is not necessarily high, neonicotinoids are systemic (taken up by the plant) and appear in nectar and pollen, and it is via this route 2013 South Sudan PERSUAP | pg. 38 that a chronic toxicity mechanism may operate. Clothianidin is the most highly implicated, followed by imidacloprid. However, the small-scale and asynchronous uses of neonicotinoids envisioned in South Sudan are judged to present markedly lower risks to bee colonies than the large-scale, synchronous applications in the US and Europe, where hundreds or thousands of hectares may be sprayed at one time. And because of their low toxicity to humans, broad-spectrum uses, and low toxicity to non-insect targets, they have many other desirable attributes. They are thus approved forboth seed treatment and foliar use under this PERSUAP. However, this PERSUAP will be amended to restrict their use if asynchronous small-scale applications are shown to present significant risk of CCD and/or if their US EPA registration status changes. Neonicotinoid use must be monitored for honeybee impacts; spraying must take place in the early evening when bees are in their hives, and notice given to local beekeeperso that hives may be moved/protected. They may not be used on honey-bee pollinate crops when these crops are flowering. All of the seed treatment pesticides, including the neonicotinoids, are safer in the environment when covered by soil. Therefore, proper planting techniques must be emphasized and monitored. Factor H: The Conditions Under which the Pesticide is to be Used, Including Climate, Flora, Fauna, Geography, Hydrology, and Soils The Greenbelt region is well watered; the Blue Nile crosses the Greenbelt region in Central Equatoria. Farmers report that ground water table is only 3-10 m from the soil surface in many places. Thus the use of pesticides in the three states presents a potential for contamination of important surface and groundwater sources; this is the most significant risk of pesticide use arising from the environmental context. Such contamination may arise from: Application Improper disposal of pesticide containers and rinseate from washing-up. (Empty pesticide containers were seen strewn in around crop fields planted to vegetables in several occasions during the field visits. Farmers have not been taught to puncture and bury their containers rather than just throw them away.) Spills during transport. (Road accidents are not uncommon, with the trip from Uganda and Kenya taking about a day and crossing a number of rivers and streams.) Improper disposal of outdated pesticides. When USAID projects are purchasing pesticides on the local market, the risk of spills during import transport cannot be controlled. However, the following measures should minimize the risk of surface and groundwater contamination: (1) pesticide-specific use (application) restrictions is enumerated in the pesticide profiles of Annex B; (2) required use of safer transport practices when IPs themselves are transporting pesticides, and (3) training in and enforcement of proper clean-up and container disposal practices. 2013 South Sudan PERSUAP | pg. 39 Factor I: The Availability and Effectiveness of other Pesticides or Non-Chemical Control Methods As noted, the”pests and control methods” tables presented in Annex A for each target crop serve as rough drafts for the crop- and pest-specific pest management plans to be developed by implementing partners. In these tables, many non-pesticidal remedies are recommended as control measures; indeed for some crop pests, only non-chemical controls are recommended. However, as also established, effective pest management across the target crops, particularly at larger and more intensive production scales, is likely to require some chemical controls. As noted, pesticide use/support will be governed by crop- and pest-specific pest management plans. A major purpose of these plans is precisely to assure a well-considered mix of nonchemical and chemical controls. Per the Annex A tables, pesticides are likely to play a relatively minor role in control of the following: Diseases of the common food crops. These will mainly will be controlled by use of resistant crop varieties. Many such varieties are available and seed for these should soon be made available to farmers not only through the seed distribution of FARM Sudan but also by the emergent agro-input dealer sector. Vertebrate pests. These dominate the list of farmers’ pest problems, but chemical control options are limited to the use of (1) seed treatments with repellant properties (thiram and imidacloprid) for sown-seed vertebrate pests and (2) methyl anthranilate spray for birds. Farmers also will be encouraged to construct fences to keep out wandering livestock. Stored product losses. At 20-40%, these losses are currently high, but can be significantly reduced adoption of non-chemical IPM control practices: First farmers need to harvest their crops on time to keep field infestation rates low. They then need to properly sun-dry the grain to kill insect pests such as weevils that infested the grain in the field. Farmers then can store their grain in well-sealed silos that FARM Sudan is featuring. This may be all that is necessary for short term storage. Note that no fumigants are approved under this PERSUAP. The candidate list of pesticides for this PERSUAP includes ALL pesticides available in Juba-area agricultural input shops in April 2012. There are in a number of cases pesticides that are theoretically more effective against target pests, but these are either not available locally, or fail the toxicological/safety screens enumerated under previous analysis factors. Factor J: The Requesting Country's Ability to Regulate or Control the Distribution, Storage, Use and Disposal of the Requested Pesticide In South Sudan, the pesticide regulatory framework and institutions are only now being established. The government does not yet have a list of approved pesticides, or a list of reputable and registered pesticide manufacturers as well as local registered retail importers and purveyors of pesticides. The capacity of GOSS to provide the necessary legal framework for the regulation of pesticides is changing, albeit slowly, and numerous efforts are underway to provide institutional strengthening, policy formulation and enforcement, including in the management of pesticides. 2013 South Sudan PERSUAP | pg. 40 The MAF in South Sudan has primary responsibility for the regulation and enforcement of pesticide procurement, distribution, storage, use, and eventual disposal. The FARM project developed the Dec 2011 Plant Protection Policy now under consideration by the Ministry of Agriculture and Forestry. However, this does not go beyond high-level policy statements, including a commitment to IPM and to effective regulation of pesticides. Current institutional weaknesses require exclusion of higher-toxicity pesticides, reliance on Uganda and Kenya registration as a surrogate for a functioning South Sudan registration system, and for particular vigilance in assuring safer use measures. Factor K: The Provisions Made for Training of Users and Applicators While the pesticides put forward for approval by this PERSUAP are generally of relatively low toxicity, the pesticide toxicology profiles presented in Annex B clearly shows that use presents some human health and environmental risks. This, combined with the overall extremely poor awareness of pesticide risks and safer use principles among beneficiary population (see section 4.5), means that an aggressive program of pesticide safer use training is essential for: Project staff who will apply or handle pesticides, or serve as extension agents Beneficiary farmers who will use/apply pesticides Those being trained as extension agents Beneficiary agro-input dealers Key training topics must include, as appropriate, the following: Definition of Pesticides Pesticide risks and the understanding that pesticides are bio-poisons Concepts of Active Ingredients vs formulated products Classes of Pesticides and the concept that specific pesticides are effective against only certain classe of organism. Concept of proper application rates and the concept of pesticide resistance and techniques for avoiding it. Concept that pesticides have specific organisms against which they are effective Survey of the core elements of Safer Pesticide Use: IPM, Safer Purchase, Transport, Storage, Mixing, Application, Reentry and pre-harvest Intervals, Clean-up & Disposal, including specific treatment of PPE Pesticide First Aid & Spill Response Interpretation of Pesticide Labels --- particularly to understand PPE requirements and other precautions, dosage rates, and to identify AIs, and expiration dates Proper sprayer operation and maintenance. Each project will develop a training plan meeting its needs, however: The training plan must cover the categories of individuals enumerated above Training curricula must cover all relevant key topics outlined above and discussed in more detail in Annex C. 2013 South Sudan PERSUAP | pg. 41 Training must reach all relevant individuals within 6 MONTHS of the effective date of this PERSUAP Brief refresher training must be provided at least annually. Projects are encouraged to consider a training-of-trainers approach. Factor L: The Provisions Made for Monitoring the Use and Effectiveness of the Pesticides Implementing partners will be required to report initially and every 6 months thereafter on compliance with the conditions established by this PERSUAP; the Safer Use Action Plan (next section) constitutes a tracking reporting form that dictates the content of such reporting. As part of this reporting, implementing partners directly supporting farm-level pesticide use or extension will be required to report on instances observed of pesticide resistance. USAID M&E field visits will examine pesticide compliance. SECTION 6: SAFER USE ACTION PLAN 6.1 Introduction This Safer Use Action Plan is the definitive statement of IP pesticide compliance requirements and is synthesized from the PER analysis: Section 6.2, immediately below, enumerates allowed pesticides. Section 6.3 summarizes the safer use conditions attendant to use/support of these pesticides. These conditions are then detailed in the attached mandatory template for assigning responsibilities and timelines for implementation of these requirements, and for tracking compliance. Each project subject to this PERSUAP must submit a completed SUAP template to its AOR/COR by January 17, 2014 and provide an annual update. With respect to pesticides, the Safer Use Action Plan satisfies the requirement for an environmental mitigation and monitoring plan (EMMP). The project EMMP should simply incorporate the SUAP by reference. 6.2 Allowed Pesticides Synthesizing across the PER analysis only the below-listed pesticides (active ingredients) of the larger candidate list are recommended for approval. Upon approval of this PERSUAP, these pesticides and ONLY these pesticides are allowed for use/support in USAID/South Sudan agriculture sector projects. Insecticide Fungicide acetamiprid (but may not be used during crop flowering on crops pollinated by honeybees.) azadirachtin (neem oil; also an insecticide) mancozeb metalaxyl FOR SEED TREATMENT ONLY thiram FOR SEED TREATMENT ONLY sulfur (also an insecticide) azadirachtin (neem oil; also a fungicide) Bacillus thuringiensis-Bt betacyfluthrin carbaryl Fumigant 2013 South Sudan PERSUAP | pg. 42 chlorpyrifos (formulations < 10% AI ONLY) clothianidin (but may not be used during crop flowering on crops pollinated by honeybees.) cyphenothrin None allowed, EXCEPT aluminum phosphide fumigation may be contracted from specialized providers with all necessary training and equipment. Herbicide dimethoate malathion fluazifop-p-butyl glyphosate • isopropylamine salt of glyphosate imazapyr pendimethalin propanil thiobencarb pyrimiphos methyl (also pirimiphos methyl) (seed treatment only.) Bird Repellant spinosad methyl anthranilate imidacloprid (but may not be used during crop flowering on crops pollinated by honeybees.) indoxacarb* insecticidal soaps lambda cyhalothrin (formulations < 10% AI only) sulfur (also a fungicide) thiamethoxam (but may not be used during crop flowering on crops pollinated by honeybees.) Veterinary Applications Albendazole (anti-parasitical; not a pesticide but an orally administered drug) Note: As imidacloprid and thiram have properties as repellants against birds and mammals that feed on sown-seed, they should be preferred as seed treatments over the other seed treatment materials Such use/support is allowed only in compliance with the safer use conditions summarized in the the following section and detailed in the “Safer Use Action Plan and Compliance Tracker” that comprises the last section of this chapter. 6.3 Summary of Compliance Requirements Mitigation Measures and restrictions specified in the PER can be summarized as follows: A. Only pesticides approved by this PERSUAP may be supported with USAID funds in USAID/South Sudan agricultural sector activities. These pesticides are enumerated in section 4.2, above. Pesticide “SUPPORT” means procurement, use, recommending for use, or otherwise facilitating the use of a pesticide. B. Pesticide support must be governed by a set of locally adapted, crop- and pest-specific IPM-based pest management plans and observe enumerated use restrictions. (The PERSUAP provides key information for IPs to develop these plans.) C. Appropriate project staff & beneficiaries must be trained in safer pesticide use & pesticide first aid; D. To the greatest degree practicable, projects must require use & maintenance of appropriate PPE—as well as safe pesticide purchase, handling, storage and disposal practices; E. Projects must be systematic in their pesticide-related record-keeping and monitoring. The PER and the annexes provide substantial resources to support compliance with these requirements, as detailed in the table below. IPM/Safer Use Requirement Key Resources Provided Pesticide recommendations and use ANNEX A: sets out crop-by-crop, pest-by-pest chemical and non-chemical management 2013 South Sudan PERSUAP | pg. 43 must be governed by a set of cropand pest-specific IPM-based pest management plans. (IPs are responsible for developing these plans.) Appropriate project staff & beneficiaries must be trained in safer pesticide use & pesticide first aid; methods recommended by this PERSUAP. The pests and control methods table for each crop is intended to serve as a rough draft for a crop-specific pest management plan. ANNEX B provides toxicology information for each approved active ingredient, including human acute toxicities and chronic health issues, water pollution potential, as well as potential ecotoxicities to important non-target organisms like fish, honeybee pollinators, birds and several aquatic organisms. This information is summarized in table B-1, and extended profiles of most pesticides, including specified safer use requirements follow. ANNEX C. Mandatory Elements of Pestide Safer Use Training provides significant discussion of safer use training elements. ANNEX B Describes appropriate protective equipment on a pesticide-by-pesticide basis. To the greatest degree practicable, projects must require use & maintenance of appropriate PPE— as well as safe pesticide purchase, handling, and disposal practices 2013 South Sudan PERSUAP | pg. 44 [Insert Project Name] Pesticide Safer Use Action Plan & Compliance Tracker* Must be submitted to AOR/COR by January 17, 2014 and annually updated thereafter. BASIC INFORMATION SUBMISSION DATES: Prime Contractor Initial submission Project Annual Update #1 Pesticide Compliance Lead & Contact Information Annual Update #2 : Annual Update #3 Summary of Pest Management Needs on Project Note: Pesticide “support” = use of USAID funds to: purchase pesticides; directly fund the application of pesticides; recommend pesticides for use; enable the application or purchase of pesticides via provision of application equipment, credit support, etc. Required Compliance (Mitigation) Measure Initial Compliance Status (if known, indicate) not so Actions planned to achieve & maintain compliance (w/ deadlines responsible party) Status of compliance actions & SUPPORT ONLY THE PESTICIDES AUTHORIZED BY THE 2013 USAID/SOUTH SUDAN AG SECTOR PERSUAP Immediately Inventory Pesticides being supported and ensure NO SUPPORT for Class I chemicals. (insert extra needed) rows if Distribute copies of the list of allowed AIs with 2013 South Sudan PERSUAP | pg. 45 matching commercial product names to all project field extension staff & advise regarding the January 17, 2014 deadline for compliance (below) As soon as possible but not later than Janauary 17, 2014 Assure that USAIDfunded pesticide support is limited to ONLY PESTICIDES APPROVED BY PERSUAP. Continue verification throughout life-of-project Pesticide technical assistance and use must be governed by a set of locally adapted, crop-and-pest specific IPM-based pest management plans and observe enumerated use restrictions. By February 1, 2014 Starting from the information in PERSUAP Annex A and drawing on PERSUAP Annex B, adopt/develop crop- and pest-specific IPM-based pest management plans (PMPs). For chemical controls, PMPs must include the use restrictions specified in the Annex B pesticide profiles. (E.g. no use near surface waters.) Note: sharing/collaboration among projects is encouraged. Translate PMPs into crop-specific field reference guides or posters for farmers to anticipate and manage pests. By 1 February 2014 Provide first-time training to appropriate project staff, partners and beneficiaries in PMPs; 2013 South Sudan PERSUAP | pg. 46 Provide refresher training annually. From Date of Initial Training Require and enforce PMP implementation in situations where the project has direct control over pesticide use Require and enforce that field extension under direct project control be PMP-based. Where project control over extension or agricultural practice on the ground is less than complete, promote and support to PMPs to the greatest practicable extent. Ongoing over Life of Project (LOP) Modify PMPs over LOP based on groundtruthing/field experience. Appropriate project staff & beneficiaries must be trained in safer pesticide use & pesticide first aid. Develop a Training Plan for Pesticide Safe Practices and IPM for project staff and beneficiaries, including at least annual refresher training.* Develop or source curricula conforming to required training elements specified in Annex C. Implement training plan, providing first-time training to all relevant staff and beneficiaries within 6 months. To the greatest degree practicable, projects must require use & maintenance of appropriate PPE – as well as safe pesticide purchase, handling, storageand disposal practices. 2013 South Sudan PERSUAP | pg. 47 If carbamate or organophosphate-class pesticides are used extensively, follow procedures for baseline testing for cholinesterase inhibition, and establish a periodic cholinesterase monitoring schedule when necessary. implement/observe core risk mitigation measures (PPE and other precautions) identified in the summary section of each extended pesticide profile. Where control is less complete, take all practicable measures to support and promote implementation of these measures. whenever providing, supporting or recommending pesticides for use, assure that appropriate personal protective equipment is available and, to the degree possible, require its use. whenever directly using, procuring or supplying pesticides, assure that quality application equipment is available and local capacity for its available and maintained. To the greatest degree practicalble, enforce good disposal and clean-up practice For directly supported pesticide stores, assure that FAO Best Management Practices are met. (See Annex C). For directly supported 2013 South Sudan PERSUAP | pg. 48 pesticide transport, assure that minimum practices specified in Annex C are met. Projects must be systematic in their pesticide related record-keeping and monitoring. pesticide efficacy in demonstration plots must be evaluated any evidence of pesticide resistance development must be tracked and reported. Flow-down requirements Prime contractors must write pesticide compliance requirements as set out above into each each grant or sub-contract that will involve support for pesticide use. * This table is not conclusive and the IP will have to include more specific mitigation measures, e.g bee colony impact trackers, etc 2013 South Sudan PERSUAP | pg. 49 7. LITERATURE CITED Abt Associates. 2011. South Sudan Pesticide Evaluation Report and Safe Use Action Plan (PERSUAP) for Seed Treatment Only. Food, Agribusiness and Rural Markets (FARM) Program, USAID/Sudan, Juba, Southern Sudan. Dabrowsky Z.T. 1997. Integrated pest management in vegetables, wheat and cotton in the Sudan: a participatory approach. ICIPE Science Press, October 1997, 245 p. Kanampiu F.K., Kabambe V,Massawe C, JasiL,Friesen D., Ransom JK, Gressel J. 2003. Multi-site, multi-season field tests demonstrate that herbicide seed-coatingherbicide-resistance maize controls Strigaspp. and increases yields in several African countries. Crop Protection 22: 697–706. Litsinger, J.A., Libetario, E.M., Barrion, A.T., and Apostol, R.P. 2009. Comparison of insect pest complexes in different Philippine dryland rice environments: population densities, yield loss, and management. International Journal of Pest Management 55:129-149. Ntawuruhunga P, Legg J, Okidi J,Okao-Okuja G, Tadu G, Remington T. 2007. Southern Sudan, Equatoria Region, Cassava Baseline Survey Technical Report IITA. Page WW, Busolo-Bulafu CM, van der Merwe PJA, Chancellor TCB. 2002. Groundnut Manual for UGANDA: Recommended groundnut production practices for smallholder farmers in Uganda. Chatham UK: Natural Resources Institute, 17 p. Push-pull technology, see www.push-pull.net 2013 South Sudan PERSUAP | pg. 50 ANNEX A: PESTS & DISEASES OF TARGET CROPS & AVAILABLE & RECOMMENDED CONTROL METHODS This annex details the primary pests of all target crops on a crop-by-crop basis, available non-chemical control methods, and recommended chemical controls, where these are necessary. As such, this Annex contains both information compiled as INPUT to the PER analysis (pests of target crops), and OUTPUTS of that analysis (available non-chemical controls, recommended chemical controls.) The pest-control method matrices provided for each target crop are intended to serve as the basis for the crop and pest-specific management plans required by the SUAP. The pest lists were generated from interviews conducted with FARM extension staff in Equatoria, interviews with agro dealer shops in Juba, Yei, and Morobo Kajo Keji, and consideration of the most common pests impacting major food crops in Uganda and Kenya (where more detailed research has been conducted). All USAID/South Sudan agriculture sector target crops are profiled in this annex. Per section 3 of the PERSUAP, these are: Maize Sorghum Cassava Upland Rice Groundnut Finger Millet Pigeon Peas Onions Tomatoes Dry Beans Okra Cabbage Sesame Stored Grain; Seed Treatment Maize Maize is a popular crop for both human consumption and as a cash crop. Maize is not used as livestock feed. There are no hybrid maize varieties grown due to a lack of seed suppliers. Most farmers prefer open pollinated varieties that mature in 110-120 days as they want to grow maize in both wet seasons (but not in the same field). White colored kernel varieties are preferred and maize is eaten in a number of ways. It can be ground to make flour and made into a paste, which, by adding it to boiling water, makes a kind of porridge that is eaten for lunch and dinner. The flour is often mixed with cassava flour. If the kernels are ground when they are wet maize is made into a cake and boiled. Whole kernels are cooked with beans in a type of soup. Roasted ears of maize are also popular. If the land is prepared by tractor then there is a greater likelihood of it being grown as a monocrop. But if the field is prepared by hand hoe then the crop will more likely be intercropped with groundnut, beans, or cassava. If it is the first crop, then the second crop will be rotated with a legume or non-cereal. 2013 South Sudan PERSUAP | pg. 51 Crop rotation is a well-known method by farmers to lessen pest pressure. FARM Sudan is providing certified seed and training on modern cultivation practices which farmers can employ in their slash and burn agricultural system. Burning trees and grass provides nutrients to crops to give maize the strength to tolerate pest injury such as stem borers. The fertility, however, will decline over the double cropping system which is normally perpetuated on a field for three years before abandonment and clearing of new land from the forest or other fallowed land. Delayed weed removal is a primary cause of maize yield loss in smallholder agriculture. Herbicides can save labor and time to increase the net benefits to farmers and often are less expensive than hiring local labor. But herbicides are not common in South Sudan, thus weeding is by hand. (In Uganda the Weed Wipe applicator is available for post-planting weed control which does not involve spraying. Glyphosate is mixed with water and placed in the end of the handle and gravity takes the solution down to a mop like sponge at the bottom. The farmer walks quickly and wipes the herbicide directly onto weeds with the applicator. Pendimethalin can also be tested for this technique.) A key pest in some areas is striga, a parasitic plant that attacks cereals retarding plant growth, resulting in stunted and withered plants. However no farmer interviewed mentioned this pest as it must be overlooked, or if farmers are lucky, it may not be present. Herbicide applications against striga are expensive, and become ineffective since the crop is already damaged before the purple striga flower emerges. If striga proves to be important farmers could potentially use a new control method. IR maize or its commercial name, StrigAway maize, comprises two main elements – an herbicide- resistant maize seed and imazapyr, a systemic herbicide. The IR maize is not a GMO as it was developed using standard breeding methods. The herbicide-resistant maize seed is coated with low doses (30g) of the herbicide. As the StrigAway maize germinates, it absorbs some of the herbicide used in coating it. The germinating maize stimulates striga to germinate and as it attaches to the maize root, it is killed before it can cause any damage. Herbicide that is not absorbed by the maize plant diffuses into the soil and kills striga seeds that have not germinated. Imazapyr is included in this PERSUAP. Aside from weeds, yields of maize in the Equatoria states are reduced by damage caused by vertebrate pests inhabiting the forest such as monkeys, grass cutter rat, birds, and squirrels which feast on either or both the sown-seed and the mature cobs. These vertebrate pests eat sown-seeds buried in the soil (rats, birds) and young plants (cows). As a control measure children dig rats from the ground or burn fields to flush them out, as rats are a delicacy. Reasons for vertebrate pest attacks farmers’ crops were discussed in Litsinger et al. (2009), which also shows the benefit of seed treatment for upland crops. Domestic animals can be kept out of the fields if farmers build fences using logs and stumps that can be recovered during land clearing operations. Rather than burning them, which is the current practice, farmers should pile them around field perimeters as permanent fences. It was found that both thiram and imidacloprid as seed treatments have anti-feedant properties to birds and other vertebrates that would dig up sown-seed to eat. Thus these materials have dual purposes. Other pests of young seedlings are termites and crickets which can be controlled by seed treatment insecticide. The role of termites as early season pests has yet to be confirmed. Farmers present conflicting stories. A cultural control method is to seed at higher rates (over-seeding). 2013 South Sudan PERSUAP | pg. 52 Maize is constantly threatened by the potential outbreak of a wide array of foliar diseases. For optimal maize yields, attention must first be placed on selecting a variety that is most resistant and tolerant to the major diseases prevalent in South Sudan. Fortunately there is excellent collaboration with CIMMYT in bringing in new germplasm to East Africa and new varieties are being developed continuously. Several maize diseases were important in the 1980s (maize streak virus and grey leaf spot), which have now been minimized by resistant varieties. The Longe 1 variety that will be imported is tolerant to maize streak virus. The virus is vectored by a leafhopper, but intercropping tempers the disease incidence. Grey leaf spot is spread by infected plant residue thus crop rotation is important. Several other minor leaf diseases also occur. Stemborers are another significant pest of maize. Early planting is a mechanism to escape stalk borers. In Uganda, a project to introduce larval (Cotesiaflavipes) and pupal (Xanthopimpla stemmata) parasitoids against stalk borers has produced good results against Chilopartellus, the main species there. Minimal insecticide usage, as well as selective materials, conserves beneficial arthropods for natural insect pest control. A non-pesticide method has been developed at ICIPE in Kenya for the control of stalk borers of cereal crops call ‘push-pull’ (http://www.push-pull.net). The technique involves intercropping silverleaf desmodium (Desmodium uncinatum) a fodder legume, with maize, napier (Pennisetumpurpureum), and Sudan (Sorghum sudanense) grass to provide both immediate and long-term benefits. Aromas produced by Desmodium repel (push) pests like the maize stemborer while scents produced by the grasses attract (pull) the stemborer moths and encourage them to lay eggs in the grass instead of in the maize. Napier grass produces a gummy substance that traps the stemborer larvae so, once they hatch, only a few survive to adulthood, thus reducing their numbers. In addition several parasitoids benefit by the absence of pesticide usage. The key species are the larval parasitoid Cotesiases amiae and the pupal parasitoid Dentichasmias busseolae of cereal stemborers. Desmodium roots produce chemicals that stimulate germination of striga seeds, but then prevent them from attaching successfully to maize roots. Striga eventually dies and the number of seeds in the soil is also reduced. Besides being a good ground cover, Desmodium is a nitrogenfixing legume that improves soil fertility. Termites attack older crops probably more than seedlings in the ground although this has not been fully determined. Termites are more important in dry seasons in dryland areas and can be controlled by encouraging ant nesting (Lepisiotaspp. and Myrmicaria spp.) with fish bone meal. Farmers also mix a concoction of dried chili, cow urine, neem, and wood ash to apply to the mounds. Farmers have also found that excavation of the tops of mounds significantly disturbs termites. Another homemade concoction told to us in KajoKeiji is made from ½ tin water + hand soap + 1kg local tobacco leaves ground up. The mixture is left to soak overnight and then boiled the next day for 30 min. It is poured into an opened termite mound to kill the queen. However most farmers do not want to apply pesticides to the mounds as they feel that termites are on the whole more beneficial than a pest due to their role in soil fertility. 2013 South Sudan PERSUAP | pg. 53 Mulch made from dried grasses from field clearing can be saved and not burned and used as a mulch on the newly planted maize fields. Most farmers believe that the mulch will act as a trap crop to divert the termites from the maize, although there is not full consensus on this idea which needs to be tested more by farmers. The benefit is that the termites break down the mulch adding to the organic matter content of the field. Another benefit of course is that the dried grass is not burned which tempers global warming. A large land snail was noted in farmers’ fields and the farmers said that they defoliate young plants. Farmers control them by hand collection and they can feed them to chickens. Two species of orthopterans attack maize in mass migrations. A katydid Ruspolianitidula attacks in swarms in most years around Nov-Dec. Locusts come in Oct-Nov from the east or west. Farmers also eat the katydid and locust so they are not keen to use insecticide against these pests and the average person can eat a halfkilo of insects per day. They catch them at night when they are resting on foliage. Average yield is 750 kg/feddan or 1.85 t/ha, but can be twice as high with better management. 2013 South Sudan PERSUAP | pg. 54 Pests & Diseases of Maize and Control Measures Pest Available Control Measures Recommended Pesticides, when needed Grass and broad leaf weeds (preemergent control) Grass and broad leaf weeds (postemergent control) Perennial weeds Thorough land preparation, hand weeding, pre-emergent spray if previous crop was weedy Diuron Pendimethalin Diuron Pendimethalin Glyphosate salt Purple witchweed (Striga spp.) Couch grass or Bermuda grass (Cynodon dactylon) Sown-seed pests (crickets, rats, birds) Termites Pseudacanthotermes Macrotermes, Microtermes Odontotermes Soil insect pests (millipedes, white grubs) Cows, goats Cutworms/ armyworms Thorough land preparation, hand weeding, post-emergent spray if previous crop was weedy Pre-plant or pre-emergent spray or post plant weed wipe Weed regularly Rotate maize with trap crops. Eg. sunflower, pulses and cotton stimulate the germination of striga seeds, but also inhibit post-germination growth of the weed Intercrop maize with Desmodium or other legumes (Desmodium progressively reduces the number of striga seeds in the soil “push and pull technology”) Use resistant/tolerant varieties Spray herbicide after the above methods have not yielded good results. Introduce shade producing cover crops, within a crop rotational system. Spray herbicide Harrow with a tooth harrow during the dry season in order to uproot the rhizomes and letting them dry completely on top of the soil Over seeding, insecticide seed treatment Deep plowing dig out queen, applying a mulch of dried grass after planting as a ‘trap crop’, Seed treatment with pesticide Smoking termite nests Flooding of termite nests Use of bio pesticides e.g. Neem seed oil, powdered tobacco Use of entomo pathogenic fungus e.g. metarrhizium, anisopliae Plough field to destroy the termites' nest, runways, and tunnels and to expose them to predators, such as ants, birds, chicken, etc. Practice crop rotation to reduce the build-up of termites. Remove plant residues and other debris especially moist and decaying woods. Avoid leaving the crop in the field after harvest on stooks, stacks or windrows Deep plowing, seed treatment Construct fences, scare them away Early planting, deep plowing, apply insecticide poisoned bait when larvae first seen in economic numbers Imazapyr Glyphosate Glyphosate Imidachlorprid Clothianidin Thiamethoxam Thiram as vertebrate repellant Imidacloprid Acetamiprid Home-made concoctions Imidacloprid Acetamiprid Clothianidin Thiamethoxam Indoxacarb Bacillus thuringiensis (Bt) Spinosad 2013 South Sudan PERSUAP | pg. 55 Pest Available Control Measures Land snail Aphids/ thrips Hand picking Rainfall as physical control, early planting can avoid population buildup, fertility management to ensure tolerance, apply insecticide when 25% of plants (in silk or heads) Leafhopper vector of maize leaf streak Cicadulina Katydid (green grasshopper) Ruspolianitidula Resistant/ tolerant variety Locust Schistocercagregaria Leaf beetles African armyworm Spodopteraexempta Stalk borers/ Stalkborer Chilo partellus Chilopartellus, Sesamiacalamistis Eldanasaccharina Busseola fusca Earworm Heliocoverpaarmigera Damping off, seedling blight Rhizoctonia Maize streak virus Recommended Pesticides, when needed People collect them for food Early planting to avoid swarm months Burn vegetation where they rest Conserve natural enemies (larvae of blister beetles, ants, parasitic flies, assassin bugs, predatory wasps, birds, lizards, snakes, frogs, and fungi. Domesticated poultry (e.g. chickens, turkeys, guinea fowl, geese, and ducks) and wild birds are good for keeping grasshopper populations in check. Ensure the ground is covered with crops, grass or mulch. This is reported to reduce grasshopper numbers since they prefer laying eggs on bare soil. Dig or cultivate the land before planting to expose the eggs to predators and to the sun. Spray biopesticides. (www.iita.org) FAO locust early warning forecasting, people collect them for food Fertility management, scout field edges, apply if incidence of damage exceeds 30% plants Insecticide when necessary Imidacloprid Acetamiprid Spinosad Neem, sulfur, insecticidal soap Spinosad, Insecticidal soaps, Azadirachtin Indoxacarb Spinosad Indoxocarb Spinosad Indoxacarb Bacillus thuringiensis (Bt) Early planting, fertility management, insecticide at first sign of feeding injury, spot treat infected plant and its neighbors only (not the whole field), intercropping (use of ‘push-pull’ technology) Conserve natural enemies eg. Parasitic wasps and predatory ants. Destroy crop residues to kill pupae left in old stems and stubble and prevent carry-over populations. Intercrop maize with crops that are non-hosts for stemborers (e.g. cassava and grain legumes). Intercrop maize with a repellent plant such as desmodium and plant an attractive trap plant.“Push and pull technology” www.icipe.org Spray with neem product Spinosad Indoxacarb Early planting None Certified seed, crop residue thoroughly decomposed, fungicide seed treatment Thiram Metalaxyl Use of tolerant, resistant varieties. None 2013 South Sudan PERSUAP | pg. 56 Pest Available Control Measures Recommended Pesticides, when needed Plant early in the season. Eradicate grass weeds. Control vectors that transmit the disease. Intercrop Use fungicide Grey leaf spot (Cercospora zeaemaydis) Northern leaf blight Exserohilumturcicum Common rust (Puccinia sorghi) . Leaf blight Stenocarpellamacrospora Downy mildew Perenoschleros-porasorghi Grass cutter rat Pigs, cows Weaver birds Monkeys, squirrels, rats Use resistant Practise field sanitation. It helps in reducing the inoculum (infection) source. Mancozeb Resistant/ tolerant variety None Use of resistant varieties. Deep plough crop residue. Destroy the weed Oxalis sp. (an alternate host). Spray fungicide Resistant/ tolerant variety Resistant/ tolerant variety Mancozeb Sulphur Hunt them for food Build fences, scare away Scare away None None Bird repellant methyl anthranilatte None Scare away monkeys, trap monkeys in drives into nets, rats hunted as food None None 2013 South Sudan PERSUAP | pg. 57 Sorghum Sorghum is another major cereal staple crop in South Sudan. It is grown as a food crop and is the main ingredient of a number of common dishes in the local diet. It is ground into flour and added to boiling water to make porridge. Its flour is often mixed with cassava flour in the porridge that is eaten for lunch and dinner. Sorghum flour is also made into ‘chapatis’ which is a breakfast food. Farmers told us that sorghum makes people feel fuller than when they eat maize. Sorghum is often intercropped with groundnuts. In Equatoria the widely used local varieties of sorghum are long maturing and low yielding, but are more resistant to pests and diseases. There are a large number of local varieties. There are several tall white varieties that are very long maturing (eg. Lei and Laponga). Marsika is a drought tolerant variety and is sown in Apr-May and harvested in Jan. Mayo is a red variety and planted May-June and harvested in Jan. Both of these long maturing varieties escape the problem of the rainy season which causes sorghum heads to sprout fungal diseases if not properly dried. The cluster of seeds in the panicle often is tight which encourages fungal growth. For this reason sorghum is grown more in the second rainy season because of the difficulty of drying the crop and is rarely intercropped. Pest problems are less than occur with maize. Weeds, however, are very important as they appear in all the fields at the same time and farmers do not have enough time to tend all fields at once. Several herbicides are listed which can be tried by farmers who want to save labor weeding as well as the weed-wipe method developed in Uganda using glyphosate. The traditional farmer practice is hand weeding using hoes, but farmers should use Striga-free planting material and clean tools, crop rotation, intercropping, organic matter usage with mulch spread after sowing, and improved fallows and push-pull system. The most common diseases are loose kernel smut and anthracnose which can be controlled by resistant varieties or by a fungicide such as mancozeb. Termites and crickets attack newly sown seeds and can be controlled with seed treatments. The land snail also is a defoliator and can be controlled by hand collection. As with maize, vertebrate pests attack the crop after sowing, during crop growth, as well as after grain forms. Rats remove sown-seed and may be repelled with imidicloprid or thiram which have repellant properties. Domestic goats and cows push over plants and consume them in the field. These pests are difficult to control particularly as extensive areas of the farmers’ cultivated land are away from the households and cannot be monitored readily. Farmers need to build fences to keep them out. Toward maturity farmers complain of rats, wild pigs, monkeys, and baboons that feed on developing ears. The only recourse for farmers is to scare them away by placing guards in the fields during grain development. Birds such as the weaver bird swarm into fields and eat mature grain. They come during two periods during the day: 1) at 6AM-mid day and 2) from 2PM to dusk. Farmers try to scare them away but to do so need to sleep in the field. Farmers build watch towers to be able to see the birds coming. The repellant methyl anthranilate (Bird Shield) can be tried. 2013 South Sudan PERSUAP | pg. 58 Sorghum is more resistant to stalk borer than maize thus control is not needed. Termites eat older plants and katydids and migratory locusts eat sorghum plants. Their control is similar to that mentioned with maize. Seed of Seredo variety of sorghum will be distributed to farmers. It is an early maturing, drought resistant and bird resistant variety that has resistance to some diseases as well. The expected average yield of sorghum is estimated at 500-650 kg/feddan or 1.23-1.60 t/ha, but could be much more with better management. 2013 South Sudan PERSUAP | pg. 59 Pests & Diseases of Sorghum & Control Methods Pest Availabe Control Measures Weeds Crop rotation, thorough land preparation, hand weeding, inter-row cultivation, herbicide Purple witchweed (Striga hermonthica) Use clean tools Push-pull intercrop Celosia argentia, Desmodium, or Sudan grass Vigorous uprooting before it produces seeds (ww.icipe.org) Intercrop sorghum with fast spreading legumes which deprives the weed of sunlight and exude chemical substances that reduce striga growth Thorough land preparation Spray herbicide Rats Early planting, synchronous harvesting, seed treatment Sown-seed pests (termites, crickets) Over-seeding, seed treatment Shootfly Atherigonasoccata African armyworm (Spodoptera exempta,) Early planting, increase seeding rate, inorganic fertilizer Locust Schistocercagregaria Swarms occur in some years -- FAO locust early warning forecasting, people collect them for food Grasshoppers other than locusts FAO locust early warning forecasting, people collect them for food Katydid (green grasshopper) Ruspolianitidula Stalk borers ChilopartellusSesamiacalamistis Eldanasaccharina Busseolafusca Spotted stem borer (Chilo partellus) People collect them for food, early planting to avoid swarm months, burn vegetation where they rest The sorghum aphid (Melanaphis saccari) and the maize aphid (Rhopalosiphum maidis) Snail Goats, cows Downy mildew, Peronosclerosporasorghi Imidicloprid & thiram have repellant properties Imidiclorprid Clothianidin Thiamethoxam None Indoxacarb Bacillus thuringiensis (Bt) Spinosad Monitor regularly field margins Spray Bt or botanicals such as neem and pyrethrum extracts Conserve and encourage natural enemies. Insecticide Early planting, fertility management, insecticide at first sign of feeding injury, spot treat infected plant and its neighbors only (not the whole field), intercropping (use of ‘push-pull’ technology) Early planting to ensure maximum pest escape. Use resistant varieties. Habitat management. Intercropping sorghum with pulses (cowpeas, groundnuts) Sanitation (destruction of crop residues, volunteer plants and alternative hosts). Conserve natural enemies, early planting Hand picking Scare them away, build fences Resistant/ tolerant variety, fungicide Recommended Pesticides, when needed Glyphosate salt Diuron Pendimethalin Glyphosate salt Spinosad Indoxacarb Spinosad Indoxacarb Spinosad Acetamiprid None None Imidacloprid Acetamiprid Spinosad Neem sulfur insecticidal soap None None Mancozeb 2013 South Sudan PERSUAP | pg. 60 Pest Availabe Control Measures Crazy top downy mildew (Sclerophthora macrospora) Plant resistant varieties. Remove diseased plants from the field. Rotate with non-cereals. Avoid excess soil moisture in the field Resistant/ tolerant variety, fungicide Leaf blight Exserohilumturcicum (Helminthosporium turcicum) Leaf spot Cercosporasorghi Anthracnose Colletotrichumgraminicola Rust (Puccinia purpurea) Charcoal rot (Macrophomina phaseolina) Loose kernel smut Sphacelothecacruenta Ergot Clavicepsfusiformis Claviceps sorghi Head smut Ustilagosorghi Sporisorium reilianum) The sorghum midge (Stenodiplosis sorghicola) Recommended Pesticides, when needed Mancozeb Mancozeb Resistant/ tolerant variety, fungicide, Use certified disease-free seeds, spray fungicide Resistant/ tolerant variety, Use resistant hybrids Rotate with non-cereals preferably with pulses. Good management of crop residues. Use resistant varieties. Rotate with non-cereals. Control weeds. Avoid moisture stress. Manage properly crop residue. Rotate crop with non-cereals. Legumes are also susceptible to the disease. Avoid excessive plant populations. Balance nitrogen and potassium fertility levels. Grow drought-tolerant, lodging-resistant hybrids Plant Certified disease-free seeds. Fungicide Plant resistant varieties/ tolerant variety. Rotation with non-cereals. Practise good field sanitation eg. Control weeds. Mancozeb Mancozeb Copper hydroxide Seed treatment fungicides containing metalaxyl Mancozeb Thiram Early planting Soak seed in 5% salt as ergot infected seeds will float Fungicide seed treatment Plant resistant varieties. Remove affected panicles. Avoid planting seeds from infected panicles. Rotate with non-cereals preferably with pulses. Practise good field sanitation Resistant/ tolerant variety, fungicide Plant resistant hybrids to avoid losses. Use certified disease-free seed. Rotate with non-cereals Metalaxyl Mancozeb None Rats, wild pigs, monkeys, baboons Fallowing and close season. Reduces the carryover and build-up of midge populations from one season to the next Use tolerant or resistant varieties Crop rotations. Rotate with cotton, groundnuts, sunflowers or sugarcane. Mixed cropping especially with leguminous crops Scare them away, fencing the farm, trapping them Birds Family labor at the time of grain filling stay in field to scare off birds, bird repellant Methyl anthranilate repellant (Bird Shield)(3 applications 5 days apart) 2013 South Sudan PERSUAP | pg. 61 2013 South Sudan PERSUAP | pg. 62 Cassava Usage of cassava, based on a 2005 IITA survey of 226 farmers in W and E Equatoria states, was 38% for food, 30% sale, brewing 29%, animal feed 2%, firewood <1%. Many of the varieties are endemic. The most important attributes of a cassava variety were ranked from highest to lowest: early maturity, high yield, sweetness, tuber size, cooking quality, flour quality, field storage, brewing, palatable leaves, drought resistance, pest/disease resistance, aroma, weed suppression, and good sprouting quality. The biggest constraints in both states where the IITA survey took place according to farmers were insect and mite pests followed by drought, weeds, diseases, shortage of planting material, and lack of labor. The most important pests were porcupines 24%, mole rats 21%, termites 10%, and wild pigs 6%. Less mentioned were grasshoppers, millipedes, bush rats, monkeys, and domestic animals. Only 24% of E Equatoria farmers could recognize any diseases with 68% naming cassava mosaic, root rots 17%, and fungal diseases 4%. Half of the farmers stated that diseases were important constraints. Only 15% of farmers could name a disease control method. For disease it was crop rotation, rogueing, timely weeding, and field clearing. More farmers (45%) could name control measures for pests: traps, nets, physical scaring, hunting, field clearing, fencing, digging, fire/smoke. Green cassava mite and cassava mealybug were recorded in low densities by the survey team as well as its main predatory mite of green cassava mite. The last outbreak occurred in 2009 but TME14 (which is being distributed) is resistant and no bio-control campaign of liberating predatory mites has been attempted to date. Local varieties are susceptible. Several pest epidemics have affected cassava in the past 25 years. First the green mite came and then mealybug in the 1990s followed by African cassava mosaic virus which developed into a local strain. East African cassava mosaic virus is transmitted by a whitefly. From field observation in 2005 in South Sudan, the most common disease was mosaic in 64% of fields and 16% whitefly infection. From DNA extracts from leaves, 98% of plants tested positive for African cassava mosaic virus (ACMV) 56% the most common followed by East African cassava mosaic virus (EACMV) 44%, and EACMV-Uganda 42% also found in various mixtures. These results indicate that cassava mosaic virus, whether in single or mixed infections, reduces root yield and numbers of tuberous roots produced and that losses are substantially increased following mixed infection. Whitefly adults collected from within the pandemic area were infective, whereas those collected ahead of the pandemic were not. The transmission rate of African cassava mosaic virus from plants with dual infections was significantly less than that of East African cassava mosaic virus-Uganda, which may explain the latter's predominance within the pandemic. They have resistant varieties to mosaic such as TME14 which is early maturing, good taste and good flour. Vertebrate pests predominate: domestic cows and goats eat the leaves and push down stalks. Rats, porcupines, and pigs eat the underground tubers. Fencing can contain the domestic animals but the wild animals will be hard to control as they come at night and can climb. Average yield is 3-3.5 t/feddan (7.4-8.6 t/ha) but in a good crop farmers can get up to 10 t/feddan (24.6 t/ha). 2013 South Sudan PERSUAP | pg. 63 Pests & Diseases of Cassava and Control Methods Pest Available Control Measure Weeds Thorough land preparation, hand weeding, herbicide Recommended Pesticides, when needed Glyphosate salt Nematodes Crop rotation None None economical Dig up nest and kill queen None None Typhlodromusaripo predator None Epidinocarsislopezi parasitoid None Meloidogynearenaria, M. hapla, M. incognita M. javanica Millipedes Termite Macrotermes Green mite Mononychellustanajoa Mealybug Phenacoccusmanihoti Whiteflies (Bemisia tabaci, Aleurodicus dispersus Resistant/ tolerant variety Conserve natural enemies. (Parasitic wasps, Encarsia formosa, Encarsia haitiensis (Neuenschwander, 1998; James, et al, 2000). Use disease-free cuttings. Use resistant/tolerant. African Cassava Mosaic Disease (ACMD). Cercospora leaf spot Cassava bacterial blight (Xanthomonas campestris pv. manihotis) Tolerant/ resistant variety Use clean planting material. Disinfect tools for cutting planting materials regularly. Intercrop cassava with maize or melon. Practise crop rotation and fallowing. Rotation or fallowing should last at least 1 rainy season. Remove and burn all infected plant debris and weeds. Cassava brown streak virus disease (Potyvirus - Potyviridae) None None None None None ( viral disease seems to have no chemical control ) Use diseased-free cuttings. Use tolerant/resistant varieties Remove diseased plants from the field. Brown leaf spot (Cercosporidium henningsii) Though the disease is widespread in most cassava growing countries, it is not an economically important disease problem and it does not warrant any intervention. www./icipe.org © A.A.Seif, icipe Bacterial wilt Xanthomonascampestris Anthracnose Colletotrichumgloesporioides f sp. Manihotis, Glomerella manihotis Rogueing Cows and goats Scare them away, fences None Grass cutter rat, porcupine, pigs Scare them away None None Resistant/ tolerant variety Though the disease is widespread in most cassava growing countries, it is not an economically important disease problem and it does not warrant any intervention. © www.iita.org None 2013 South Sudan PERSUAP | pg. 64 Groundnut Groundnut is a staple in South Sudan, and is usually eaten as a sauce or paste with greens and matooke. It is a source of lipids and protein in the diet as well as being a cash crop. Sometimes it is intercropped with cassava. An important cash crop in the Greenbelt, it is sown in both wet seasons usually rotated with a cereal. Weeds are an important pest group and are normally removed by hand labor. Herbicides when they become available will probably be cheaper and quicker than hand removal methods. Sown-seed is damaged by crickets or removed by monkeys, squirrels, fox, and rats. Thiram and imidacloprid as seed treatments have repellant properties against such vertebrate pests. The seed treatment insecticides will also control crickets, which damage newly sown seed and developing seedlings. Generally, pests are more important on the second crop. Squirrels, baboon, monkeys, fox, and rats dig out mature pods and there are no good control measures as they come at night. Leaf miner, too, is more important in the second wet season. As learned in Uganda, high use of insecticides leads to greater leafminer infestations as parasitoids are killed off. Some five species of millipedes feed on the pods underground for which there is no control. Damping off is controlled by thiram or metataxyl fungicide seed treatments or farmers rogue out infected seedlings. Rosette is the most important disease followed by Cercospora leaf spot which occurs after flowering. Rosette can be controlled by planting resistant varieties such as Igola 2 and Serenut 4. Resistant varieties were introduced from 1974. General control methods also are intercropping and early planting for diseases, and applying ash for insect control. Average yield is 400-500 kg/feddan (1.0-1.2 t/ha), which is low. 2013 South Sudan PERSUAP | pg. 65 Pests of Groundnuts and Control Measures Pest Available Control Measure Weeds Hand removal, thorough land preparation, herbicide Damping-off diseases (Pythium sp, Rhizoctonia solani) Scerotiumrolfsii Crop rotation fungicide seed treatment Allow enough time between manure application and planting of groundnut. Deep ploughing or hand hoe tillage exposes soil pests to desiccation and to predators. Resistant/ tolerant variety Thiram Metataxyl Over-seeding, seed treatment, repellant Bacterial wilt Ralstonia solacearum Sown-seed pests (crickets, monkeys, rats) Recommended Pesticides, when needed Fluazifop-p-butyl Glyphosate salt None Verticillium wilt V. dahliae Cercospora leaf spot Cercosporaarachidicola Cercosporidiumpersonatum Rust Pucciniaarachidis Resistant/ tolerant variety Tolerant variety, fungicide Imidiclorprid Clothianidin Thiamethoxam Thiram, as vertebrate pest repellant None Mancozeb Resistant/ tolerant variety Mancozeb Pod rot Pythiummyriotylum, Fusariumsolani Fungicide seed treatment Thiram Resistant/ tolerant variety Metalaxyl None None Dry rot Macrosphominaphaseolina Peanut clump virus (PCV) Peanut mottle virus (PMV) Rosette virus disease Early planting, close spacing, high plant density,rogueing, Resistant/ tolerant variety Resistant variety Early planting (allows plants to start flowering before aphids appear.) Dense/ close spacing (This planting provides a barrier to aphids penetrating in from field edges, discourages population build-up of aphids and reduces incidence of "rosette" disease. Conserve natural enemies.eg Ladybird beetles. Use neem seed or leaf extracts Practise crop rotation Plant tolerant or resistent varieties. None Termites Microtermes spp, Odontotermes spp, Macrotermes spp , Microtermes spp. Remove residues of previous cereal crops Harvest ground nut promptly after maturity. Destruction of mounds and removal of queen termites Clothianidin Thiamethoxam Thrips M. sjostedti Thripspalmi Caliothripsindicus Frankliniellaschultzi Insecticide Conserve natural enemies. eg predatory thrips, lacewings and predatory bugs. Spray the crop with botanicals, (e.g. garlic, rotenone, neem, pyrethrum, etc.). Plough and harrow before transplanting. This reduces thrips attacks by killing pupae in the soil. Sulfur Neem Spinosad Insecticidal soap The groundnut leafminer Aproanema modicella Insecticide Use tolerant/resistant varieties. Neem Sulfur Cowpea aphid Aphis craccivora Sulfur Neem Spinosad Insecticidal soap 2013 South Sudan PERSUAP | pg. 66 Pest Available Control Measure Plant during the first short rains when normally the miner population is low. Avoid drought stress by irrigating or early sowing so as to avoid periods when drought is likely. Millipedes 5 species Monkeys, baboon, squirrels, fox, rats Practice good sanitation. Prepare land properly. Select sites away from forest (breeding sites for millipedes). Cover exposed pods. Close cracks in the soil. (www.ecoport.org) Drive monkeys into nets Recommended Pesticides, when needed Spinosad Insecticidal soap None None 2013 South Sudan PERSUAP | pg. 67 Finger Millet (Eleucine coracana) The term “millet” is applied to various grass crops whose seeds are harvested for human food or animal feed. Finger millet belongs to the family poaceae and subfamily chloridoideae. Millets are generally suited to less fertile soils and poorer growing conditions, such as intense heat and low rainfall. In addition, they require shorter growing seasons. As a group, millets are used for both forage and grain and when used as grain, they are considered a cereal. Millets are highly adaptable to the stressful semi-arid environments. Finger millet can be ground and cooked into cakes, puddings or porridge. The grain is also made into a fermented drink (or beer) in many parts of Africa while the straw from finger millet is used as animal fodder. It contains the amino acid methionine, which is lacking in the diets of hundreds of millions of the poor who live on starchy staples such as cassava, plantain, polished rice, or maize meal. Finger millet is an important crop in South Sudan and a traditional food security crop. It can tolerate drought in the early stages of growth but after the first month it requires good moisture supply. It is commonly grown in areas receiving 900mm of rainfall annually. It grows well from an altitude of about 2400m. It requires free draining soils. Millet is often intercropped with legumes such as groundnuts (Arachis hypogea), cowpeas (Vigna sinensis), and pigeon peas (Cajanus cajan). Finger millet is not as susceptible to pests and diseases as many other millets. However, crop damage by insect pests and diseases reduces its yields. Effective pest and disease control can increase production a great deal. Selection of healthy seeds, free from bird and insect damage and diseases, is important to produce vigorous seedlings that could fare well in case of attack by pests or diseases. Weed Management. Weed control is difficult in finger millet fields because it is hard to distinguish seedlings of grassy weeds from finger millet during the early stages, and is only more readily identifiable during the flowering period. Some of the methods that can be used to manage weeds is by close spacing and higher seed rate, as well as planting of fast growing cultivars all aimed at denying weeds the opportunity to establish. Physical weeding should be done twice, first time 2-3 weeks after emergence and second weeding about two weeks later. The recommended herbicides for the control of annual grass and broadleaved weeds in finger millet are glyphosate salt and pendimethalin. Pest and Diseases. MilletPest and diseases can lead to a total crop failure if not managed in good time. The most important pests and diseases include: blast, downy mildew, Fusarium wilt, grasshoppers, long smut, mealybugs, millet head miner, purple witchweed, shootfly and stemborers. Finger millet is known to stay for quite long after harvest before it is attacked by storage pests. 2013 South Sudan PERSUAP | pg. 68 Pests and Diseases in Finger Millet and Control Methods Pest The African armyworm (Spodoptera exempta) Available Control Measure Recommended Pesticides, when needed Monitor regularly Spray Bt or botanicals such as neem and pyrethrum extracts. Spray when caterpillars are small. Conserve and encourage natural enemies.eg birds Avoid usage of non selective/ broad spectrum insecticide Bacillus thuringiensis Aphids (Aphis gossypii, Myzuspersicae) Early Planting. Conserve natural enemies. Stem borer (Coniesta ignefusalis) Sow early, soon after first rains. Delayed planting tends to increase the incidence of stem borer larvae. Spray with insecticide at first sign of feeding injury Spot treat infected plant and its neighbors only. Intercropping (use of ‘push-pull’ technology)www.icipe.org Plant resistant varieties African boll worm Plant resistant varieties such Serena and Seredo Azadirachtin Insecticidal soap Dimethoate The millet head miner (Heliocheilus albipunctella) Plough deeply to expose residual larval populations and pupae to natural enemies and desiccation. Conserve natural enemies. Efforts in artificial augmentation (rearing and releases) of an effective parasitic wasp. Imidacloprid Dimethoate The shoot fly (Atherigona soccata) Conserve natural enemies. Collect and destroy crop residues after harvest to reduce carry-over from one season to the other. Use shoot-fly resistant varieties. Conserve natural enemies. Parasitic wasps and several species of spiders are important predators on eggs. Grasshoppers Zonocerus spp, Oedaleus senegalensis, Kraussaria angulifera, Hieroglyphus daganensis, Diabolocantatops axillaris, Homorocoryphus niditulus. Early warning Conserve natural enemies. Important natural enemies include ants, larvae of blister beetles, parasitic flies, assassin bugs, predatory wasps, birds, lizards, snakes, frogs, fungi and robber flies. Domesticated poultry (e.g. chickens, turkeys, guinea fowl, geese, and ducks) and wild birds are good for keeping grasshopper populations in check. Ensure the ground is covered with crops, grass or mulch. This is reported to reduce grasshopper numbers since they prefer laying eggs on bare soil. Early uniform planting of the similar maturity varieties Bird scaring using devices such as cassette tapes, aluminum foils Avoid isolated fields Plant resistant variety due to tannin content such as Serena and Seredo Plant resistant/ tolerant varieties. Uproot and destroy the diseased plant soon after detecting disease in the field. Keep the field clean. Spray fungicide. Practice crop rotation with pulses. Birds Crazy top downy mildew (Sclerospora graminicola) Azadirachtin malathion, dimethoate, Azadirachtin Insecticidal soaps Beta-cyfluthrin Lambda-cyhalothrin Imidacloprid No chemical control recommended Mancozeb 2013 South Sudan PERSUAP | pg. 69 Pest Available Control Measure Recommended Pesticides, when needed Ergot (Claviceps spp.) Plant resistant varieties Remove affected panicles. Avoid planting seeds from infected panicles. Rotate with non-cereals preferably with pulses. Practice good field sanitation. Long smut (Tolyposporium penicillariae) Head Blast (Pyricularia grisea) Storage pests: The lesser grain borer (Rhyzopertha dominica) and the khapra beetle (Trogoderma granarium) Weeds Plant resistant varieties. Use certified seeds. Plant resistant varieties. Rotate with non-cereals. Practice good field sanitation Plant resistant varieties Practice good field sanitation. Spray fungicide Keep finger millet in a sealed storage Hang finger millet heads over kitchen fires. Store millet on the head (glumes on the in-threshed head act as protective devices) Mix seeds with inert substances such as sand and wood ash. Stored finger millet is resistant to insect pests due to its small size. Close spacing and higher seed rate, as well as planting of fast growing cultivars all aimed at denying weeds the opportunity to establish. Mancozeb Mancozeb Metalaxyl Pirimiphos methyl glyphosate salt and pendimethalin Physical weeding should be done twice, first time 2-3 weeks after emergence and second weeding about two weeks later. 2013 South Sudan PERSUAP | pg. 70 Pigeon peas (Cajanus cajan) Family: Fabaceae Pigeon pea is an important grain legume crop produced in the Indian sub-continent, Central America, southern and eastern Africa. The dry grain is an important local pulse and export commodity in several African countries (Kenya, Malawi, Mozambique, Tanzania and Uganda) (Minja, et al, 1999). Pigeon pea is a perennial shrub that is commonly grown as an annual crop. It has very slow initial development (up to 2 months after planting). With a deep tap root, pigeon peas are able to take up nutrients and water from lower subsoil layers. Therefore, in crop mixes they hardly compete with the companion crops. This crop grows and yields well under conditions of low rainfall and poor soil. Pigeon pea is well balanced nutritionally and an excellent source of protein. It is eaten as a vegetable (immature pods or green pea) or as dried grain (cooked and eaten as dhal, dry split cotyledons). The crop has many other uses: the wood is used as fuel, and the leaves and husks provide livestock feed. Pigeon pea is often grown as a shade crop, cover crop or windbreak. After establishment, pigeon pea improves the soil by its extensive root system. The bacterium Rhizobium that lives on the roots of the pigeon pea is able to fix nitrogen and thus to improve soil fertility. Fallen leaves are used as mulch. Optimum temperatures for pigeon pea cultivation range from 18 to 38°C. Where average temperatures are above 29°c, soil moisture and fertility need to be adequate. The optimum rainfall amount is 600-1000 mm/year. Pigeon peas are sensitive to high salinity levels and water logging. It flowers well where rainfall is 1500 to 2000 mm. On deep, well-structured soil it will grow where rainfall is 250 to 370 mm. Propagation is by seed: Pigeon pea varieties differ not only in form of seeds, colour and taste, but also in growth habit, time of flowering and susceptibility towards pests and diseases. Pigeon pea thrives best in seedbeds prepared by deep ploughing and cultivations to reduce weeds. Most typically, seeds should be sown at a rateof 20-25 kg per ha (8-10 kg per acre) in rows with spacing of 3050 cm x 75-150 cm and 10cm deep. However, optimal spacing varies significantly and depends on variety, soil type and production system. In dry areas, and especially in coarse-textured, infertile soils, farmers use wide spacing between plants to limit competition. In intercropping, the crop performs well with 2 rows of cereals (e.g. sorghum, millets), cotton or groundnut. After harvest of the intercrop, long-duration pigeon pea continues to grow and protects the soil. Pigeon pea is regarded as a good plant for restoration of fertility and is used in a rotation with crops such as maize-groundnut-tobacco-pigeon pea for three to four years in Uganda. One of the advantages of pigeon pea is the increased growth of the grass interplanted with it. However, due to its high demand, there is a tendency to move away from traditional intercropping to monocropping. Weed control. Early weed control by hoeing and hand‐weeding is recommended. The first weeding should be done before emergence and second weeding after crop emergence. 2013 South Sudan PERSUAP | pg. 71 Pests and Diseases. The most important pests for pigeon peas are insects feeding on pigeon pea pods and seeds. Surveys in Kenya, Malawi, Tanzania and Uganda (Minja et al., 1999) have shown that the most important pests of pigeon pea pods and seeds in the region includes pod sucking bugs, pod and seed boring caterpillars and pod flies. A number of caterpillars that feed on foliage of other legumes and grain legumes also attack pigeon peas, but they are usually not important. 2013 South Sudan PERSUAP | pg. 72 Pests and Diseases in Pigeon Peas and Control Methods Pest Available Control Measure Leaf hoppers or Jassids (Jacobiasca lybica) Use of neem kernel extract against aphids should be enough to control jassids at the same time. Spray pesticides Red spider mites (Tetranychus spp.) Use resistant cultivars Use natural enemies The pod fly (Melanagromyza chalcosoma) Avoid growing a mixture of cultivars of differing duration in one area because this will provide pods over a long period and allow several generations of the pod fly to develop. Neem has given control of a related pod fly (M. obtusa) on pigeon pea. Thrips (Megalurothrips spp. and Frankliniella schultzei) Conserve natural enemies. (pirate bugs) Monitor the crop regularly( scouting for pests identification) Early detection is particularly important at the onset of flowering. Practice spot spray the crop with botanicals. (e.g. garlic, rotenone, neem, pyrethrum and a mixture of garlic and pepper etc.) Aphids (Aphis craccivora) Conserve natural enemies. Early planting to allow plants to grow strong before aphids appear. Spray with pesticides as soon as the aphids are seen in the field. Spiny brown bug (Clavigralla tomentosicollis); giant coreid bugs (Anoplocnemis spp), Riptortus bugs (Riptortus spp) and green stink bugs (Nezara viridula). The spiny brown bug is one of the most important pests of pigeon peas in Eastern Africa Pod borers (The African bollworm (Helicoverpa armigera), the legume pod borer (Maruca vitrata = testulalis) the lima bean pod borer (Etiella zinckenella) are major pests of pigeon peas in East Africa) Pod sucking bugs Handpick and destroy immature bugs and collect adults with insect nets and destroy them. Use natural enemies (egg parasitoids, assassin bugs, ants and birds). Spray with aromatic plants (e.g. gums, lantana, khaki weed etc.) Use Neem-based pesticides which reportedly reduce feeding by green shield bugs. Apply biopesticides such as Bt or neem products. Scout the crop regularly to detect eggs and young caterpillars before they enter the pods and control them. Conserve natural enemies. (Ants, parasitic wasps and pirate bugs). Use bird perches placed just above the crop canopy for birds to perch on as they observe, pick and feed on pod borers. Handpick immature bugs and destroy them. Collect adults with insect nets and destroy them. Conserve natural enemies such as egg parasitoids, assassin bugs, ants and birds. Spray with aromatic plants (e.g. gums, lantana, khaki weed etc.) has been suggested to repel bugs. Neem-based pesticides reportedly reduce feeding by green shield bugs. Recommended Pesticides, when needed Azadirachtin Insecticidal soaps Beta-cyfluthrin, Lambda-cyhalothrin NOTE: Infestation rarely so severe as to warrant chemical control. Azadirachtin/Neem, , Spinosad Azadirachtin Azadirachtin Insecticidal soaps Spinosad Azadirachtin Insecticidal soaps Azadirachtin/Neem, Betacyfluthrin, Chlorophyrifos Dimethoate, Malathion Use neem based pesticides Azadirachtin Beta-cyfluthrin Insecticidal soaps and Bt Insecticidal soaps Bt Neem based products 2013 South Sudan PERSUAP | pg. 73 Pod weevil Fusarium Wilt (Fusarium udum) Neem products have worked in them (attack the green seeds while still in the pods) Use varieties that are resistant to Fusarium wilt. Crop rotation with cereals. Use certified disease-free seeds. Plant in fields with no previous record of Fusarium wilt. Uproot wilted plants and burn plant residues after harvesting. Plant resistant/ tolerant variety Spray fungicide Plant in fields away from perennial varieties, which could be a source of inoculums (infection). Use neem products Mancozeb Phytophthora blight (Phytophthora dreschsleri f.sp. cajani) Plant resistant/ tolerant variety Spray fungicide Plant in fields with no previous record of blight. Avoid fields prone to waterlogging. Use wide inter-row spacing. Mancozeb Metalaxyl Powdery mildew Sphaerotheca fuliginea, Leveillula taurica, Erysiphe cichoracearum) Resistant/ tolerant variety. Spray fungicide Plant in fields away from perennial pigeon peas. Sulphur Rust (Uredo cajani) Plant resistant varieties Avoid planting of pigeon peas close to bean fields. Use good spacing. Cercospora leaf spot (Mycovellosiella cajani) Root-knot nematodes (Meloidogyne incognita, M. javanica) Weeds Crop rotation with cereals Plant resistant varieties Plant in fields with no previous record of nematode infestation. Amend soil with neem extracts. Thorough land preparation, hand weeding, herbicide Mancozeb Metalaxyl Mancozeb Metalaxyl Azadirachtin Glyphosate salt, Pendimethalin 2013 South Sudan PERSUAP | pg. 74 Onions (Allium cepa) Onion is a biennial vegetable grown in temperate zones as an annual crop. In the tropics the varieties that do well are in effect annuals as they can produce seed within the first year of growing. Optimum temperatures for plant development are between 13 and 24°C, although the range for seedling growth is narrow, between 20o c and 25°C. High temperatures favour bulbing and curing. In the tropics only short day or day neutral onion varieties will form bulbs. These thrive in warm to hot climates of 15-30°C. If the temperature greatly exceeds that required for bulbing, maturity is hastened and bulbs do not grow to maximum size, consequently lowering the yields. They are grown on fertile, well-drained and non-crusting soils at a preferred optimum pH range of between 6.0 to 6.8, although alkaline soils are also suitable. Onions can be direct drilled and thinned, or planted in seedbeds and the seedlings transplanted or grown in seedling trays and the plugs planted out. At the bulbing stage, they need a substantial amount of water, but excessive moisture must be avoided during the growing season as this encourages pests and diseases. Application of fresh manure to the crops should also be avoided as this causes the plants to develop thick necks and too much leaf at the expense of bulb formation. Onion is propagated by seed. Proper seed selection is recommended to minimise problems of splits and doubles. In the tropics, the seed is usually sown in a nursery under a mulch cover. After the seed emerges, the mulch is removed. About 6-8 weeks after sowing, when the seedling has a base as thick as a pencil and is approximately 15 cm tall, the seedlings are transplanted to the field. In most commercial areas, beds 0.9 to 1.0 m wide are common, and 2 to 6 rows are seeded or planted on the bed. If two rows, they may be two-line (twin) rows with plants staggered to achieve proper spacing and high population density. The ultimate yield of onion is determined by the number of leaves that are formed prior to bulbing. Over-fertilisation, uneven watering, and temperature fluctuations also influence bulb formation. Onions are rich in nutrients such as calcium, iron and vitamin B among others. They are used for salads (bunching onion or sliced full-grown bulbs), pickling (e.g. silverskin onions), cooking (such as in soups) and frying (for example, with meat). Onions are particularly suited to smallholder farming in most countries. Harvesting takes place 90-150 days after sowing. Onions are ready for harvest when the leaves collapse. Alternatively the leaves can be bent over and left to dry for 10-12 days. The crop is pulled out by hand and kept for some days in the field with the bulbs covered by the leaves (windrowing). The leaves are then cut off and the mature bulbs are bagged or packed in crates if they are to be stored. Freshly harvested onions are dormant and will not sprout for a variable period of time (this depends on the variety). Storage will extend the dormant period. Sprouting will increase in storage temperatures above 4.4°C. It will decrease again as temperatures exceed 25°C. Onions production is adversely affected by pests and diseases. Weed Management: For weed control, prepare the beds for planting, allow weeds to emerge and spray them with glyphosate. Allow 7 to 10 days for the weeds to die before planting with minimal soil disturbance. Mulching after planting will conserve moisture, suppress weeds and reduce the incidence of some diseases. 2013 South Sudan PERSUAP | pg. 75 Pests and Diseases. A variety of diseases and disorders affect onions. Most of the diseases are caused by fungi or bacteria, whereas disorders may be caused by adverse weather, soil conditions and nutritional imbalances. The most important onion pests and diseases include anthracnose, bacterial soft rot, botrytis, leaf blight, bowny mildew, leafminers, onion fly, onion rust , purple blotch , thrips, fusarium and white bulb rot. 2013 South Sudan PERSUAP | pg. 76 Pests and Diseases in Onions and Control Methods Pest Available Control Measure Thrips (Thrips tabaci) Thrips infestations are more severe during the dry season, therefore keep plants well irrigated. Maintain field sanitation. Remove heavily affected plants. Leaf miners (Liriomyza spp.) Conserve natural enemies. Spray the crop with neem products. Use parasitic wasps (Diglyphus isaea). Destroy all infested leaves and other plant material after harvest. Destroy pupae before planting a new crop - ploughing and hoeing can help reduce leaf mining flies by exposing pupae, which then would be killed by predators or by desiccation. Where new stock is obtained as seedlings rather than seed, check carefully and destroy infested plants before planting to prevent introduction of pests including leaf miners. Avoid planting successive onion crops. Practice rotation with crops not related to onions. Avoid planting in soils that are high in un decomposed organic matter. Keep onion fields well separated. Remove and destroy infested plants by burning them. Onion fly (Delia antiqua) Recommended Pesticides, when needed Spinosad, neem extracts can be used but need to be used for phytotoxicity before use); garlic bulbs preferably early morning. Azadirachtin Insecticidal soaps Azadirachtin Carbaryl Malathion Diseases Onion rust (Puccinia porri) Crop rotation. Clear weeding. Improve soil drainage. Excessive nitrogen can lead to development of disease Clear away and destroy any diseased plant debris. Do not compost diseased plants. Mancozeb Fusarium basal rot (Fusarium oxysporium f.sp. cepae Use varieties that are resistant to Fusarium wilt Nitrate fertilizers tend to reduce disease severity as compared to ammonium fertilizers. Crop rotation with cereals (3-5 year). Use certified disease-free seeds. Plant in fields with no previous record of wilt. Uproot wilted plants, burn plant residues after harvesting. Mancozeb White bulb rot (Sclerotium cepivorum) Plant tolerant and resistant varieties. Practice long crop rotation (8-10 years) with cereals. Use healthy seeds. Destroy wild onions and leeks. Manure from animals fed on diseased plant material should not be used on onion fields. Plant resistant/ tolerant variety. Spray fungicide in case of serious infestation. Harvest crop promptly. Avoid exposure to rain between harvest time and storage. Mancozeb metalaxyl, Thiabendazole Good hygiene. Proper spacing Use fungicides Mancozeb Anthracnose (Onion smudge) (Colletotrichum circinans) Gray mound mancozeb 2013 South Sudan PERSUAP | pg. 77 Downy mildew (Peronospora destructor) Use healthy seeds Use resistant varieties Crop Rotation Wider spacing of plants Preventative treatments with rock powder Purple blotch (Alternaria porri) Increased spacing between plants Seed treatment Crop rotation Removal of crop debris Mancozeb Metaxyl Mancozeb, metalaxyl Botrytis Remove and destroy all infected parts as soon as they appear. Mancozeb Weeds Cultural practices eg. Mulching, weeding, spray chemicals Glyphosate Tomatoes (Lycopersic onesculentum) Tomato (Lycopersicon esculentum), belongs to the family Solanaceae. Tomatoes are fairly adaptable, but grow well in warm conditions with optimum temperatures of 15°C -25 °C. High humidity and temperatures reduce fruit set and yields. Very low temperatures delay colour formation and ripening and temperatures above 30°C inhibit fruit set, lycopene development and flavour. Tomatoes thrive best in low-medium rainfall with supplementary irrigation during the off-season. Wet conditions increase disease attacks and affect fruit ripening. Tomatoes grow well in a wide range of soil types, which are high in organic matter, well-drained and a pH range of 5 - 7.5. Pests and Diseases. The major constraints to tomato productionare pests and diseases. Pests and disease infestation can occur at every stage of the crop (nursery, transplantation, field, fruiting, harvesting and after harvest) and proper management is required for each stage. Major diseases are bacterial wilt, early and late blight, tomato spotted wilt virus, leaf spot and powdery mildew, insect pests and other arthropods (spider mites, thrips, white flies, African bollworm), nematodes, blossom end-rot and poor crop management especially lack of crop rotation practice. The major soil pests attacking tomato seedlings are cut worms, Agrotis spp and chafer grubs, Melolontha spp. Aphids, Aphis gossypii and thrips, Thrips tabaci Lindeman and Frankliniella occidentalis (Pergade) and whiteflies, Bemisia tabaci suck plant sap and cause leaf distortion and plant stunting. More importantly, thrips have been reported to transmit the tomato spotted wilt virus (TSWV) disease, while the whiteflies are known vectors of potato leaf roll virus which also infects tomato. Severe infestation by the pests usually causes significant yield loss and may result in total crop loss. Appropriate and timely management makes all the difference between good production, poor production or total crop failure. Proper identification of the pest and disease is critical in a control strategy. Kenya (a likely source market for seeds) has developed tolerant/resistant varieties to diseases and pests such as bacterial wilt, fusarium wilt, Root knot nematodes, Tomato Mosaic Virus (TMV), verticillium wilt, early and late blight, red spider mites and Tomato Yellow Leaf Curl Virus (TYLCV). 2013 South Sudan PERSUAP | pg. 78 In general, the following practices can help reduce and/or control the incidence of pests and diseases in tomatoes: 1) Avoid sowing seeds densely at nursery stage; 2) maintain a mixed cropping system which helps maintain natural enemies; 3) mulching provides an attractive environement for ground living natural enemies; (4) spray with b.t and neem products; avoid using broad spectrum pesticides. . 2013 South Sudan PERSUAP | pg. 79 Pests and Diseases In Tomatoes and Control Methods Pest Available Control Measure Recommended Pesticides, when needed Late Blight – (Phytophthora Infestans) Crop rotation Management of nitrogen and field (tomatoes are a fussy nitrogen feeder). On soils low in organic matter, tomatoes typically run out of nitrogen reducing yields and predisposing the plants to blight. This disease is caused by too much nitrogen in the early stages of the plants growth. Avoid overlapping crops to prevent transmission of pest and diseases. Early Blight – (Alternaria solani) Crop rotation is key in managing the disease. Infected crop debris should be disposed off well to avoid re-infection. Use of certified disease free seeds as well as tolerant varieties. Remove volunteer crops and weeds that can act as hosts for the fungus. Plant tomatoes on well drained soils. Maintain adequate levels of nitrogen. Nitrogen and phosphorus deficiency can increase susceptibility to early blight. Also excess nitrogen could induce early blight infection. Avoid overhead irrigation Avoid overlapping crops (from one season to the other) to prevent transmission of pest and diseases. Mancozeb Botanicals Sulphur sprays although harmful to predatory mites can be used for prevention Powdery Mildew – Leveillulata urica Plant resistant/ tolerant varieties. Use fungicide as soon as symptoms are observed. Scout crop to assess any sign of the disease. Rouge infected plants and destroy them through burning or burying. Overhead irrigation reduces powdery mildew. Avoid furrow irrigation in fields with powdery mildew Avoid overlapping crops to prevent transmission of pest and diseases. Mancozeb Bacterial Wilt – Ralstonia solanacearum Cultural practices such as crop rotation, field hygiene and irrigation Water management (Dispersal of bacteria can be caused by furrow irrigation or surface water. Use other alternative methods such drip or over head irrigation).Alternatively if furrow irrigation has to be used, ensure water flows from new to old fields to minimize infection; Plant resistant/tolerant varieties. In areas prone to bacterial diseases disinfect pruning knives with a commercial detergent (e.g. Tepool) before working on a new plant. Avoid overlapping crops to prevent transmission of pest and diseases. No chemical control available Fusarium wilt – Fusarium oxysporum.sp. lycopersici Use resistant/tolerant varieties (certified disease free seeds). Use Push and Pull practices and maintain proper farm sanitation (removing all infected plants and destroying them). Crop rotation (maintain a 3-4 yr period) before planting again with solanacea crops. Tomatoes can be intercropped with brasiccas, cereals, legumes, onion, and fodder grasses. Regularly scout for the disease and take preventative action early as well as spot spraying (spraying is determined by the percentage of affected area. This is an economically viable method to prevent the spread of the disease to other areas on the farm other than spraying the whole farm). Do not use broad spectrum pesticides. Remove crop debris from fields after harvest to minimize carry-over of pests and diseases. Apply organic manure, mixing it well with the soil. Avoid furrow and surface irrigation which helps transmit the disease. Alternatively if furrow irrigation has to be used, ensure water flows from new to old fields to minimize infection. Avoid overlapping crops to prevent transmission of the disease. Mancozeb Metalaxyl Sulfur based fungicides Mancozeb Sulfur 2013 South Sudan PERSUAP | pg. 80 Pest Available Control Measure Recommended Pesticides, when needed No pesticide use recommended. If thrips are managed, then disease is controlled. Tomato Spotted virus Manage thrips which transmit the disease. Crop rotation with different family crops. Infected crop debris should be disposed off well to avoid re-infection. Use of certified disease free seeds as well as tolerant varieties. Conduct effective weed control in and around tomato or pepper fields. Avoid overlapping crops to prevent transmission of pest and diseases. Damping off Phytophthora infestans Pythium spp Rhizoctonia solani Plant crop in well drained areas and avoid excess moisture in the soil. Problem can also be avoided by not growing the crop during the rainy season. Proper soil preparation and management to provide for good soil drainage, structure, aeration, water-holding capacity and plant nutrition by including proper amounts of fertilizer and lime according to soil test report. Proper soil treatment with fungicide to reduce the level of fungi that cause damping-off. Use fungicide-treated seed with high germination rate. Proper seeding rates to avoid thick plant stands, poor air movement and low light intensity. Strict sanitation to avoid re-infesting treated soil with these fungi. Avoid overlapping crops to prevent transmission of pest and diseases. Spot spray with neem Septoria leaf spot Septoria lycopersici Cultural control measures include rotating for at least 1-2 years between tomato crops. Control weeds susceptible to septoria leaf spot that can carry over the disease in rotation crops and finally to the tomatoes again. Infected crop debris should be disposed off well to avoid re-infection. Use of certified disease free seeds as well as tolerant varieties. Spray fungicides. Staking plants to improve air circulation and reduce contact between foliage and soil. Avoid overlapping crops to prevent transmission of pest and diseases. Mancozeb Root knot nematodes Crop rotation to avoid building up and spread of the diseases (crops to be grown at intervals of 3-4 yrs). Use resistant/tolerant seed varieties. Up root and burn the diseased plant. Chemical fumigation. Proper farm sanitation Avoid overlapping crops to prevent transmission of pest and diseases. Meloidogyne incognita, M. javanica and M. hapla Meloidogynespp Bacterial Canker –Clavibacter michiganensis subsp. michiganensi Blossom end rot Alternaria solani Pests in Tomatoes Aphids (Aphis gossypii, Myzus persicae) Azadirachtin Cultural control methods such as using tolerant varieties certified disease-free seeds, practicing crop rotation, proper disposal of infected plant material and managing watering by reducing overhead irrigation. Tools such as pruning knifes should be sanitized to reduce the spread of disease in the farm. Avoid overlapping crops to prevent transmission of pest and diseases. Fungicides can be effectively used. Uproot the affected plants materials and bury or burn them to reduce the spread of the disease. Calcium application and irrigation management. Avoid drought stress and wide fluctuations in soil moisture by using mulches and/or irrigation. Apply lime in calcium deficient soils. Use nitrate fertilizers as source of nitrogen. Ammoniacal nitrogen may increase blossom-end rot as excess ammonium ions reduce calcium uptake. Apply foliar sprays of calcium chloride (not a regulated pesticide) Use insecticidal soaps 2013 South Sudan PERSUAP | pg. 81 Pest Available Control Measure Conserve natural enemies Avoid use of broad spectrum pesticides Fruit borers (Helicoverpa armiguera, Spodoptera littoralis) Cutworms (AgrotisSpp) Leaf hopper (Graphocephala spp) Spider mite Tetranynchus spp Leaf miner (Liriomyza huido brensis Thrips (Ceratothripoidesbrunneus) Tobbaco whitefly Bemisia tabaci Avoid planting tomato near corn or cotton to prevent heavy pest infestations. Parasitic wasps, especially Trichograma spp., are important natural enemies. Scout crop to assess the level of attack by fruit borers (Detection of eggs and small caterpillars before they enter into the fruit is very important). Corrective action should be taken before the borers get into the fruit (prefer the green fruit). Spray selective biopesticides such as Bt or neem extracts Eliminate weeds early at least 2 weeks before transplanting. Plough and harrow to expose cutworms to natural enemies and desiccation. Conserve natural enemies. Parasitic wasps and ants are important in natural control of cutworms. Dig near damaged seedlings and destroy cutworms Make barriers to protect the transplanted seedlings. Barriers can be made by wrapping paper, aluminium foil, and thin cardboard or similar materials around the base of transplant stem. Use neem kernel extract against them (bio pesticide ) Destroy their breeding grounds especially around the farm. Use insecticide as soon as symptoms are observed. Use resistant cultivars. Use natural pests such as the lady bird beetles). Inspect the crop regularly to determine the presence and level of infestation of spider mites. A recommended monitoring method is to select randomly 20 tomato plants and assess the level of mite damage of three leaflets per plant using a leaf index ranking from 1 to 5 (1 is few yellow spots, 5 is leaf totally covered with spots, dry patches occur). Once the average damage level exceeds the first rank, control measures should start. Avoid water stress in crops. Scout for the pest and spot spray any infestation. Spray with botanicals. Conserve natural enemies. Spray the crop with neem products. Use parasitic wasps Moisture control (adequate water placement by irrigation and mulching can be the first defense in controlling thrips). Conserve natural enemies (pirate bugs). Monitor the crop regularly and take corrective action if infestation levels are high. Early detection is particularly important at the onset of flowering. Practice spot spray the crop with botanicals. (e.g. garlic, rotenone, neem, pyrethrum and a mixture of garlic and pepper etc.) Use of beneficial insects. Use insecticidal soaps and botanicals. Ensure field sanitation. Control white flies multiplication. Fenugreek (Trigonella foenum-graecum) and coriander are repellent to whiteflies, and provide refuge for natural enemies. Tobacco, hot pepper. These botanicals were transformed into plant extracts and used as sprays at 5% concentration. Recommended Pesticides, when needed Azadirachtin Insecticidal soaps Beta-cyfluthrin Azadirachtin B.t Insecticidal soaps Beta – cyfluthrin, Carbaryl, Lambda-cyhalothrin Azadirachtin Insecticidal soaps Beta-cyfluthrin, Carbaryl Bacillus thuringiensis Azadirachtin Beta-cyfluthrin Spray with neem extracts and insecticidal soaps Azadirachtin Insecticidal soaps Imidacloprid Azadirachtin Insecticidal soaps Azadirachtin Insecticidal soaps 2013 South Sudan PERSUAP | pg. 82 Dry Beans (Common Beans) Phaseolus vulgaris Common beans are leguminous crops and include bush beans, common beans, dry beans, dwarf beans, field beans, garden beans, green beans, haricot beans, kidney beans, pole beans, snap beans or string beans. Beans are a vital staple in Africa, providing the main source of protein for many rural communities and are mainly grown for subsistence and for the local market. The growth habit of common beans varies from determinate dwarf or bush types to indeterminate climbing or pole cultivars. Bush beans are the most predominant types grown in Africa. However, improved climbing beans introduced to Rwanda in the 80's have since spread to other countries in the region. They are particularly grown in areas with limited land and high human population. Common beans grow within a range of temperatures of 17.5-27°C at altitudes of between 600 - 1950 m in many tropical areas. A moderate well-distributed rainfall is required (300-400 mm per crop cycle) with dry weather during harvesting time being essential. Climbing cultivars will give economic yields in areas of high rainfall but the dwarf types appear to be more sensitive to high soil moisture levels. Suitable soil types range from light to moderately heavy and to peaty soils with near-neutral pH and good drainage. Common bean are susceptible to salinity. Weed Control. Effective weed control on bean farms is essential because weeds compete for water and nutrients. Beans are normally outcompeted by early emergent weeds which decrease their quality and yield. Weed control involves integrating cultural, physical and chemical practices. The most suitable herbicide is glyphosate. Pest and Diseases in Beans. There are a number of pests and serious diseases that affects common beans quality and yields. Many of these pests and diseases can be managed by cultural methods and use of pesticides and fungicides. Integrating the two methods is quite effective and less expensive economically and environmentally. The most important diseases and pests are thrips, mealy bugs, aphids, leaf miner, bean rust, downy mildew, powdery mildew, and anthracnose and alternalia leaf spot. Planting beans near cowpea, soybean and many other leguminous crops, that may be the source of bean flies should be discouraged. 2013 South Sudan PERSUAP | pg. 83 Pests and Diseases in Common Beans and Control Methods Pest Available Control Measure Recommended Pesticides, when needed Flower thrips (Frankliniella spp. and Megalurotrhips sjostedti) Early detection Spray the crop with botanicals (e.g. some plant extracts: garlic, rotenone, neem, pyrethrum, pepper etc.). Mealy bugs Physical killing especially during flowering stage. use of natural enemies (assassin bugs, spiders, playing mantis, ants). Aphids (Aphis fabae; Aphis cra Monitor crop regularly. Apply spot spraying when pest is noted on crops. Foliar sprays with neem products such as Neemroc® (1-3%) and Neemros® water extract (50g/l). Ensure adequate soil moisture which prevents aphid infestations especially during the dry season. Soil diseases (Fusarium,Pythium, Rhizoctonia, Sclerotini Plough deeply Remove bean debris after harvest. Practice crop rotation without legumes. Diseases Bean rust (Uromyces appendiculatus Anthracnose Downy Mildew Powdery Mildew Weeds (pre emergent and post emergent weeds) Destroy crop residues after harvest Practice crop rotation without legumes. Intercrop with cereals Azadirachtin Insecticidal soaps, Imidacloprid, Lambda-cyhalothrin, Azadirachtin Insecticidal soaps Malathion, Imidacloprid, Lambda-cyhalothrin, Mancozeb Mancozeb + metalaxyl Use certified disease-free seeds. Plant resistant varieties Remove from the field and destroy crop debris after harvest. Practice a 2 to 3 year rotation. Avoid movement of workers in the field when wet. Use healthy seeds Use resistant varieties Crop Rotation Wider spacing of plants Preventative treatments with rock powder Plant resistant/ tolerant variety, Maintain soil fertility Use fungicide Garlic extract Mancozeb Mancozeb Mancozeb; Sulfur Thorough land preparation, hand weeding, pre-emergent spray if previous crop was weedy Glyphosate 2013 South Sudan PERSUAP | pg. 84 Okra (Abelmoschus esculentus) Okra ((Abelmoschusesculentus) belongs to the family of Malvales. It is mainly grown for its young immature pods, which are consumed (with seeds) as a vegetable, raw, cooked or fried. It is a common ingredient of soups and sauces. The pods can be conserved by drying or pickling. Okra seeds contain a considerable amount of good quality oil and protein. The leaves are sometimes used as spinach or cattle feed, the fibres from the stem for cord, the plant mucilage (thick gluey substance) for medical and industrial purposes, and the seeds as a substitute for coffee. Common varieties available in Kenya, a key source market for vegetable seeds in South Sudan include Pusasawani, Clemson spineless, Green Emerald, White velvet, Dwarf Green Long Pod. Okra is propagated by seed. It may be established by direct seeding in the field, by growing seedlings in nursery seedbeds or by raising seedlings in plastic trays. Weed control is essential to control pests and reduce competition for nutrients and moisture. Hand weeding is practiced and should avoid damage to the roots. Use of post emergence application of herbicide is possible to control weeds Pests and Diseases. There are a number of pests and diseases that affects okra quality and yields. Many of these pests and diseases can be managed by cultural methods and use of pesticides and fungicides. Integrating the two methods is quite effective and less expensive economically and environmentally. The most important diseases and pests are African bollworm, Aphids, Bacterial blight, Black mould Cotton seed bugs, Cotton stainers, Cutworms, Damping-off diseases, Early blight, Flea beetles , Flower or blister beetles, Fusarium wilt,Grasshoppers, Leafmining flies (leafminers). Powdery mildew, Rootknot nematodes, Semi loopers, Spider mites , Spiny bollworm, Stink bugs, thrips and whiteflies. 2013 South Sudan PERSUAP | pg. 85 Pests and Diseases in Okra and Control Methods Pest Available Control Measure Aphids (Aphis gossypii) Conserve natural enemies Spray only attacked plants (spot spraying). Spray with botanicals (e.g. neem extracts) The cotton aphid transmits the Yellow Vein Mosaic Virus in okra, therefore should be effectively controlled. Thrips (Frankliniella spp.) Conserve natural enemies. (pirate bugs) Monitor the crop regularly to establish the level of attack Early detection is particularly important at the onset of flowering. Practice spot spray the crop with botanicals. (E.g. garlic, rotenone, neem, pyrethrum and a mixture of garlic and pepper etc.) Plough and harrow before planting. This exposes pupae in the soil to natural enemies and desiccation. Use Insecticides Spray bio pesticides. Spinosad, a bacterium metabolite, is effective in controlling thrips. Use of beneficial insects {Parasitic wasps and predators (predatory mites, lacewings and ladybird beetles)} Avoid frequent spraying since white flies quickly develop resistance. Interplant with companion plants. Conserve natural enemies and predators (predatory mites, lacewings and ladybird beetles) are important in natural control of whiteflies. The tobacco whitefly (Bemisia tabaci) Spider mites (Tetranychus spp.) Leaf miners (Liriomyza spp.) African bollworm (Helicoverpa armigera) Cutworms (Agrotis spp.) Grasshoppers Zonocerus spp, Oedaleus senegalensis, Kraussaria angulifera, Hieroglyphus daganensis, Diabolocantatops Use resistant cultivars Use Natural pests enemies Monitor regularly the crop to determine the presence and level of infestations of spider mites. Keep field free of weeds and destroy or compost crop residues immediately after harvesting. Crop residues from an infested field should be destroyed. Do not plant a new crop near an infested field. Check the seedlings and older plants regularly for infestation and take necessary measures. Avoid use of broad spectrum pesticides. They kill the natural enemies of leaf miners. Conserve natural enemies eg Parasitic wasps Spray the crop with neem products Monitor regularly to establish presence of boll worms (once or twice a week after plants begins to bloom. Early detection of eggs and/or caterpillars before they bore into the pods is important). Spray Bt or botanicals such as neem and pyrethrum extract. Conserve natural enemies. Parasitic wasps and predators such as ants, lacewings, and ladybird beetles are important in natural control of this pest. Plough field and remove weeds well ahead of planting the crop in the field. Ploughing exposes caterpillars to predators and to desiccation by the sun. Do not immediately plant since some of the cutworms may be alive. Pick and destroy worms Early warning Conserve natural enemies. Important natural enemies include ants, larvae of blister beetles, parasitic flies, assassin bugs, predatory wasps, birds, lizards, snakes, frogs, fungi and robber flies. Domesticated poultry (e.g. chickens, turkeys, guinea fowl, geese, and ducks) and wild birds are good for keeping grasshopper populations in check. Recommended Pesticides, when needed Azadirachtin (Experiments in Kenya have shown that neem-based pesticides, namely Achook© (Azadirachtin 15% w/w) and a neem extract (Azadirachtin 0.6 w/w) effectively controlled the cotton aphid giving protection to the crop for the whole season). Insecticidal soaps Azadirachtin Spinosad Imidacloprid Imidacloprid Clothiadinidim Lambda-cyhalothrin Insecticidal soaps Azadirachtin Azadirachtin Spinosad Azadirachtin Azadirachtin Bt Insecticidal soaps Malathion Beta-cyfluthrin, Lambda-cyhalothrin Azadirachtin Insecticidal soaps Imidacloprid 2013 South Sudan PERSUAP | pg. 86 Pest axillaris,Homorocoryphus niditulus. Flea beetles (Mylabris spp. and Coryna spp.) Root-knot nematodes (Meloidogyne spp.) Available Control Measure Recommended Pesticides, when needed Ensure the ground is covered with crops, grass or mulch. This is reported to reduce grasshopper numbers since they prefer laying eggs on bare soil. Monitor crop regularly. Spray repellents such as extracts of strong smelling plants (eucalyptus, lantana, onion, garlic etc.) Crop rotation Use tolerant/resistant varieties. Rotate okra with onions, baby corn, maize, millet, sorghum, sesame or Sudan grass. Maintain high levels of organic matter in the soil. Mix crop with marigold (Tagetes spp.) or Indian mustard. Remove crop debris from the field. Incorporate neem cake powder into the soil. Azadirachtin Plant early Mancozeb Damping-off diseases (Pythium spp., Rhizoctonia solani) Use certified disease-free seeds Avoid over-irrigation and excessive fertilization with nitrogen fertilizers. Avoid fields previously planted with cotton or other related crops. None Bacterial blight ( Xanthomonas campestris p.v. malvacearum) Plant certified disease-free seed Maintain soil fertility. Ensure the plot is well-drained Avoid overhead irrigation. Avoid working in the field when wet. Remove crop debris after harvest. Spray with copper-based fungicides. Resistant/ tolerant variety, fungicide, Maintain soil fertility Mancozeb Fusarium wilt Use varieties that are resistant to Fusarium wilt Crop rotation with cereals. Use certified disease-free seeds. Plant in fields with no previous record of wilt Uproot wilted plants, burn plant residues after harvesting. Mancozeb Leaf spot Remove and destroy affected plant materials. Practice crop rotation Leaf curl Remove and destroy affected plant materials Control white flies Yellow vein mosaic virus(YVMV) Remove and destroy affected plant materials Control white flies Timely planting Hand hoeing using a ‘jembe’ or hoe. Hand pulling of weeds. Chemical weeding by use of Herbicides Diseases in Okra Early/late blight Powderly mildew Weeds Digitaria spp: (cyperusrotundus, Eleusin Indica, Echinochloacolona) Sulphur Glyphosate Broad leaf weeds: Amaranthus spp, Galinsoga spp, Striga spp, Euphobia spp, Commelina spp and Ageretumconyzoides 2013 South Sudan PERSUAP | pg. 87 2013 South Sudan PERSUAP | pg. 88 Cabbage (Brassica oleracea), and Kales Var. capitata Order/Family: Cruciferae/Brassicaceae Brassicas constitute the majority of cultivated Cruciferae in eastern and southern Africa. The main brassicas grown in the region include: Cabbage, Kale (sukumawiki) and Chinese cabbage (Cauliflower). Other brassicas grown in the region are broccoli, brussel sprouts, kohlrabi, savoy and turnip. These vegetables are grown mainly for the local market and are valuable as sources of vitamins and minerals, as well as a source of cash for smallscale farmers in rural and peri-urban areas. Cabbage is a biennial plant that grows best under full sunlight. The optimum mean temperature for growth and quality head development is 15-18°C, with a minimum temperature of 4°C and a maximum 24°C. Cabbage grows well on a wide range of soils with adequate moisture and fertility. Cabbage is a heavy feeder, so to get good yields, proper fertilization is necessary. To maintain growth, cabbage requires a consistent supply of moisture, and should as a general rule receive a minimum of 2.5 cm of water per week. Larger quantities may be required when cabbage is grown on sandy soils or when evapotranspiration is high. There are several varieties of cabbage grown in the region. Production of cabbage and other cruciferous vegetables is often constrained by damage caused by a range of pests (insects, diseases, nematodes and weeds). Weed control. To control weeds, prepare beds for planting and allow weeds to emerge and spray them with glyphosate. Allow 7 to 10 days for the weeds to die before planting with minimal soil disturbance. Mulching after planting will conserve moisture, suppress weeds and reduce the incidence of black rot. Pests and Diseases in Cruciferous Vegetables. The major pest constraints of brassicas in Africa are the diamondback moth (DBM), cabbage aphids, cabbage webworm and Bagrada bugs. The most important diseases are blackrot, blackleg, black spot and Turnip Mosaic Virus. 2013 South Sudan PERSUAP | pg. 89 Pests and Diseases in Cruciferae Vegetables and Control Methods Pest The Bagrada bug (Bagrada hilaris) The Cabbage Aphid (Brevicoryne brassicae).The false cabbage aphid (Lipaphis erysimi) and The green peach aphid (Myzus persicae) Available Control Measure Crop hygiene including destruction of weeds of the family cruciferae prevents population build-up Recommended Pesticides, when needed Insecticidal soaps Use natural enemies such as wasps and lady bird. Use pesticides Insecticidal soaps provide control. Spot sprays of pyrethrum or neem can prevent build up of large populations Azadirachtin Insecticidal soaps Spinosad Beta-cyfluthrin Chlorpyrifos (< 10% AI) Dimethoate Destroy wild plants of the family of cabbages in the vicinity of the crop. Bacillus thuringiensis Lambda-cyhalothrin The cabbage aphid is a major pest in East Africa (region) The cabbage sawfly (Athalia sjostedti) Ploughing in of volunteer plants at the end of the season helps reduce sawfly populations. Diamond back moth (DBM) (Plutella xylostella) The cabbage looper (Trichoplusia ni) Cutworms (Agrotis spp) Use biological control of DBM using parasitoid wasp Diadegma semiclausum Intercrop brassica crops with trap crops or repellent plants, to reduce pest infestation. Tomato reportedly repels diamond black moth. Use botanicals pesticide (neem-based) are very effective. Bt sprays are effective Use insecticide Conserve natural enemies such as parasitic wasps and flies. Birds feed on the adults (moths). Use biopesticides such as neem-based products or Bt Cutworm damage does not warrant chemical control measures. The cutworms is normally found be found near the damaged plant and can be killed physically or by insecticide Leafmining flies (Lyriomiza brassicae) Leaf miners are controlled by existing natural enemies, particularly parasitic wasps. Don’t use broad spectrum non-selective pesticides. Thrips (Thrips tabaci Frankliniella spp) Plough and harrow before transplanting. This can be useful in reducing thrips attacks by killing pupae in the soil. Conservation of natural enemies, such as predatory bugs, predatory mites and predatory thrips are important. Whiteflies (Bemisia tabaci, Trialeurodes vaporariorum and Aleyrodes proletella) Necrotic spotting of the leaf (CaMV) Natural enemies such as ladybird beetles, predatory mites and lacewings can play an important role in reducing whiteflies Spray with soapy water solutions Use mineral oils and neem Control aphids Use clean and disease free planting materials Practice crop rotation Maintain high level of sanitation on the field Bacillus thuringiensis Bacillus thuringiensis Beta-cyfluthrin Carbaryl Lambda-cyhalothrin, Azadirachtin Insecticidal soaps Beta-cyfluthrin Azadirachtin Insecticidal soaps carbaryl Insecticidal soaps Azadirachtin Lambda-cyhalothrin, Mancozeb 2013 South Sudan PERSUAP | pg. 90 Pest Cercospora leafspots (Cercospora brassicicola) Bacterial soft rot (Erwinia carotovora var. carotovora) Clubroot (Plasmodiophora brassicae) Black rot (Xanthomonas campestris pv. Campestris) Available Control Measure Use certified disease-free Practise proper weedmanagement, particularly, cruciferous weeds such as mustard. Remove crop residues from the field after harvest. Control sucking insects Practice crop rotation Remove and destroy diseased crop or left over stems in the field after the crop has been harvested. Wash hands and harvesting knives Destroy all brassica crop residues, preferably by adequate burn and burial. Practice crop rotation. Manage irrigation properly to avoid creating conducive environment for the disease. Adjust pH to 7.2 with hydrated lime Recommended Pesticides, when needed Mancozeb Use disease-free transplants materials Growing cabbage on raised beds with mulch helps eliminate conditions that induce black rot. Remove, burn, or deep plough all infected crop debris immediately after harvest Crop rotation (establish crops in black rot-free soils that have not grown crops from the family Cruciferae for at least 3 years.) Damping-off diseases (Pythium spp., Rhizoctonia solani, Fusarium spp.) Turnip mosaic virus (TuMV) Weeds Digitaria spp: (cyperusrotundus, Eleusin Indica, Echinochloacolona) Use certified disease-free seeds. Practice proper irrigation, avoid planting in wet, cold soils Plant on raised beds to reduce moisture content in the root zone. Practice crop rotation (seedbeds and production fields should not have had crucifers for at least 3 years). During cultivation, take care to avoid throwing soil into plant heads. Control aphids that transmit the disease. Use Resistant cultivars Remove TuMV-infected plant debris and eradicate infected plants around fields, this reduce virus inoculum and hence spread. Timely planting Hand hoeing using a ‘jembe’ or hoe. Hand pulling of weeds. Chemical weeding by use of Herbicides Glyphosate Broad leaf weeds: Amaranthus spp, Galinsoga spp, Striga spp, Euphobia spp, Commelina spp and Ageretumconyzoides 2013 South Sudan PERSUAP | pg. 91 Sesame/Simsim (Sesamum indicum) Order/Family: Pedaliaceae Sesame originates in East Africa and is the oldest of the commercial oil seeds. The oil is clear and edible oil with a pleasant taste and a long shelf life if properly refined. Sesame has an oil content of 48-55% which is the highest of any oil crop while the protein content ranges from 44 to 48%. Sesame seeds are either consumed directly as a highly nutritious foodstuff or processed by the confectionery and bakery industries. The seed hulls, which are bitter due to their oxalic content, can be removed with the use of steam. Sesame hay, if carefully dried, can be used as fodder. A large proportion of the world's sesame production goes towards producing edible oil. Purely white sesame seeds are in demand on conventional and on ecological markets, because of their higher oil content than pigmented varieties. By-products of oil extraction are an excellent protein component to mix into animal feed. Sesame is an excellent rotation crop of cotton, maize, groundnut, wheat, and sorghum. It reduces nematode populations that attack cotton and groundnut. It is also an excellent soil builder - as it improves the soil texture, moisture retention and lessens soil erosion. The composted sesame leaves left on the soil binds the ground; retains soil moisture better for planting the next crop; and increases the yield of the following crop. Sesame is resistant to drought due to its deep tap root system and can produce good harvests even if soil moisture is low. It is also tolerant to several insect pests and diseases, therefore a low production cost crop. Weed control is essential to control pests and reduce competition for nutrients and moisture. However care must be taken while hand-weeding to avoid damage to the roots. Use of post emergence application herbicide is possible to control weeds Pests and Diseases. Sesame is attacked by several diseases and pests. Severe infestation by the pests causes significant yield loss and may result in total crop loss. Among the serious pests and diseases are aphids, bacterial blight, bacterial leaf spot, cutworms, fusarium wilt , leaf spot , powdery mildew, simsim gall midge, spider mites, stem rot or charcoal rot of bean , whiteflies, Sesame and seed bugs. 2013 South Sudan PERSUAP | pg. 92 Pests and Diseases of Sesame and Control Methods Pest Available Control Measure Recommended Pesticides, when needed Stem rot (charcoal rot of bean) (Macrophomina phaseolina) Fusarium wilt (Fusariumoxysporum f. sp. sesam) Use green manure. Use resistant or less susceptible varieties (e.g. red shelled varieties). Bacterial leaf spot (Pseudomonas syringae pv. sesami) Use certified disease-free seeds. Use resistant varieties where available. Destruction of crop residues and weeds. Early planting Follow intercropping system of sesamum + sunflower. Copper based fungicides Leaf spot (Alternaria spp.) Use certified disease-free seeds. Use resistant varieties where available. Destruction of crop residues and weeds. Early planting i.e. immediately after onset of rains. Follow intercropping system of sesamum + sunflower. Copper based fungicides could be used as a preventive measure when conditions are conducive to disease development. Powdery mildew (Sphaerothecafuliginea, Leveillulataurica, Erysipheci choracearum) Use resistant varieties Use sulphur dust Bacterial blight (Xanthomonas campestrispv. sesami) Treat seeds with hot water. Use white seeded varieties which are more resistant than coloured varieties. Destroy crop residues. Use resistant varieties Pests Aphids (Aphis spp.) Mancozeb Crop rotation Use certified disease-free seeds. Destruction of crop residues and weeds Sulphur Monitor regularly the crop. Whenever necessary spray only affected plants (spot spraying). Use bio pesticides that are not harmful to natural enemies e.g. Neem, ashes, soapy water. Azadirachtin Insecticidal soaps Imidacloprid, Acetamprid Beta-cyfluthrin, chlorpyrifos (< 10% AI), Dimethoate Cutworm (Agrotis spp.) Till weeds early, before harvest Use light traps against moths. Ploughing can help by exposing larvae to predators -Flooding of the fields a few days before planting can kill larvae in the soil. Use preparations made of neem or pyrethrum Bacillus thuringiensis (B.t) Beta-cyfluthrin, Carbaryl Lambda-cyhalothrin Simsim gall midge or gall fly (Asphondyliasesami) Monitor plants at the time of bud initiation. Use resistant or tolerant varieties --Intercrop with pearl millet or groundnut. Clip the galls pick and burn the shed buds. Conserve natural enemies ie. wasps parasitize maggots of the gall fly. Dimethoate 2013 South Sudan PERSUAP | pg. 93 Pest Available Control Measure Recommended Pesticides, when needed White flies (Bemisia tabaci) Parasitoids can play an important role in reducing whitefly numbers. Flowering plants should be grown around the field to provide food source to the parasitoids and pesticide. Neem seed extracts controls young nymphs, inhibits growth and development of older nymphs, and reduces egg laying capacity by adults. Spraying with soapy water solutions can be effective in whitefly management Spider mites (Tetranychus spp.) Field hygiene is important Inter planting with garlic, basil or onion is said to give some protection due to their strong smell. Encourage natural enemies. Spray preparations made of garlic, neem or soap Insecticidal soaps Azadirachtin Spinosad Beta-cyfluthrin, chlorpyrifos (< 10% AI) Dimethoate Azadirachtin Spinosad Weeds Weeds (pre emergent and post emergent weeds) Thorough land preparation, hand weeding, pre-emergent spray if previous crop was weedy Glyphosate 2013 South Sudan PERSUAP | pg. 94 Upland Rice (Nerica) Upland rice is cultivated under upland conditions without flooding, thus requires less water than lowland rice varieties grown under flooding such as: Sindano, Basmati and IR8 among others. In Sudan, upland rice is mainly grown in the upper Nile State but on a limited scale. There may be a need to grow upland rice in South Sudan. Rice in Kenya is mainly cultivated under irrigation (lowland condition). It is a cross breed of African and Asian Rice, i.e (Oryza sativa and Oryzaglaberrima). It is possible to grow upland rice under rain fed conditions or with limited supplementary irrigation. Under good management and agricultural practices, it is possible to achieve high yields of 5 tons/ha, comparable to irrigated rice. Growing upland rice can help boost income for small scale farmers and as well as reduce rice imports and thus saving on foreign exchange earning to the country. Upland rice requires a maximum of 800mm of rainfall or 400mm during growth period and does well at altitudes of 0-1500m above sea level. It does well on heavy soils such as clay loams or black cotton soil with good water holding capacity and with a PH of neutral to slightly acidic (4.5-7.0). Drilling as a method of planting is preferred as it makes it easier to weed the rice plant in lines thus reduced weeding costs. Pests for Upland Rice/Nerica. Upland rice usually is grown as a single-season crop that occupies fields for only 4-5 month a year. In the remaining months, fields may be planted to other upland crops or remain fallow. Insect pests are seldom a major problem in upland rice. Upland rice systems prevent population buildup of insects that feed only on rice. (P. C. Gupta J. C. O’toole 1989) 2013 South Sudan PERSUAP | pg. 95 Pests and Diseases of Upland Rice and Control Methods Pest Termites Stem borers (Sesamia, Chilo and Maliarpha species) Birds Storage pests Rice weevil- sitophilus oryzae and Lesser grain borer –Rhizopertha dominica Blast Weeds Digitaria spp: (cyperusrotundus, Eleusin Indica, Echinochloacolona) Broad leaf weeds: Amaranthus spp, Galinsoga spp, Striga spp, Euphobia spp, Commelina spp and Ageretumconyzoides Available Control Measure Use of bamboo stems Smoking termite nests Use of salts Flooding of termite nests Use of bio pesticides e.g. Neem seed oil, powdered tobacco Use of red palm oil. Use of entomo pathogenic fungus e.g. metarrhizium anisopliae Management of stubbles by burning, ploughing and flooding after harvesting Strip- and inter-cropping of maize with NERICA rice was found to be effective in reducing stem borer damage on rice because maize and rice share some common stem borer species. Use of predators such as carabids, reduviids, dragon flies, spiders and braconids. Plant resistant varieties of Nerica rice. Erect scare crows randomly in the field. Scare the birds manually. Tie old VHS tapes diagonally Discourage birds from breeding by cutting nearby trees, tall grasses, and destroying roosting sites. -Use dried chilli pepper -Store of grains at extremely low temperatures (-15 to -20ºC ) for minimum of 12 hours or high temperatures (above 55ºC) for minimum of 3-4 hours. -Use of airtight containers for grain storage -Use oil Recommended Pesticides, when needed Imidacloprid Acetamiprid Home-made concoctions Indoxacarb No chemical control Silica gel powder (desiccant; not a regulated pesticide) Use disease resistant/tolerant varieties to Blast. Use good cultural practices to limit blast infection. High nitrogen associated with low potassium increase blast damage (Split application of nitrogen is better than one application to reduce blast damage). Use clean healthy seeds Treat the seeds 1–2 days before planting to control seed-borne pathogens Timely planting. Hand hoeing using a ‘jembe’ or hoe. Hand pulling of weeds. Chemical weeding by use of Herbicides Glyphosate 2013 South Sudan PERSUAP | pg. 96 Stored grain & seed Seeds of crops such as maize, sorghum, rice, dry beans, pigeon peas and groundnuts need to be stored by small-scale farmers for household consumption, for the market or as seed for the next planting season. (Farmers are organizing into producer groups to store grain until more favorable prices occur as the prices during harvest season are low. This means longer storage times.) Stored grain is under threat from a wide array of pests such as insects, rodents, fungi, and aflatoxin which reduce quality and germination---and may pose significant health risks (e.g. alfatoxin, rodent feces). Many of these pests attack the crop in the field just before harvest, thus the first step in reducing pest damage is to harvest the crop on time at physiological maturity. Most maize farmers harvest four weeks too late. Studies have shown that harvesting no later than two weeks after optimal time is critical to reducing pest incidence. Also critical is proper sun-drying: grain that is sun-dried to about 12-14% moisture significantly reduces the ability of stored grain to serve as a breeding site for insects. In the case of maize, proper cob storage is also critical. Farmers build cribs to store cobs before shelling and bagging. These however are not well built and rats easily enter. FARM Sudan has an improved crib design which is being distributed. Seed should be sieved before bagging which removes not only dust and other impurities but also insect pests. If grain is to be stored at home, farmers may add a number of botanically based products such as neem leaves to protect the grain. For example: Maize weevils are very important in stored maize and can be controlled by placing kinu seeds which are as small as sesame seed mixed with maize seed. Their odor repells many insect pests. (Kinu seeds are sold in stores for use in cooking; they are used to spice up cassava and potato. The oil from kinu is used to treat eye infection for cows and to heal their ulcers.) There is another botanical pesticide from the Morinda tree whose leaves are used to protect stored seed. It is stronger than neem and comes from Uganda. These home remedies, however, are limited: if grain is to be stored for more than three months an insecticide or fumigant must be used. Stored planting seed: At the farm level, farmers who have been trained to use protective equipment can spray pirimiphos-methyl (Actellic) onto grain to be stored as home-saved seed until the next planting season. Such grain CANNOT be eaten, however. Fumigation of stored food grain: If protection is needed for stored food grain, then a fumigation services provider may be contracted to fumigate using aluminum phosphide tablets Phosphide fumigation is never appropriate for smallholder farmers; it requires specific equipment and training to carry out safely. 2013 South Sudan PERSUAP | pg. 97 Pest Damage Control measure Pesticide Stored product insect pests Destroy grain Timely harvest, sun drying, sanitation, purchased seeds come with a seed treatment, varieties with closed husks, store in an air-tight silo Pirimiphosmethyl On farm use Actellic (pirimiphos-methyl) spray to protect next crop’s seed. Farmer method is the use of kinu seed or neem leaves 2013 South Sudan PERSUAP | pg. 98 Annex B: PESTICIDE PROFILES: TOXICOLOGY, USES, PROTECTIVE MEASURES B.1 Orientation: Pesticide toxicity and risk Pesticides of necessity are poisons, but the toxicity of different compounds varies greatly, as do the risks of using them in particular circumstances. Toxicity is the quality of being poisonous or harmful to animals or plants. A highly toxic substance causes severe symptoms of poisoning with small doses. A substance with a low toxicity generally requires large doses to produce mild symptoms. (Even common substances like coffee or salt become poisons if large amounts are consumed.) Doses can be received (absorbed) via oral ingestion, through dermal contact, or through inhalation. These different dose channels typically have different toxicities. Toxicity can be either acute or chronic. Acute toxicity is the ability of a substance to cause harmful effects which develop rapidly following absorption, i.e. a few hours or a day. Chronic toxicity is the ability of a substance to cause adverse health effects resulting from long-term exposure to a substance. There is a great range in the toxicity of pesticides to humans. The relative risk of harm from a pesticide is dependent upon the toxicity of the pesticide, the dose received and the length of time exposed. Dose can be influenced by the amount of pesticide used, concentration of the pesticide and how the pesticide and application equipment are handled. For example, a pesticide can be highly toxic as a concentrate, but pose little risk to the user if: used in a very dilute formulation, used in a formulation not readily absorbed through the skin or inhaled, used by experienced applicators who are equipped to handle the pesticide safely. In contrast, a pesticide may have a relatively low toxicity but present a high risk because it is used in the concentrated form which may be readily absorbed or inhaled. Formulated pesticide products (which often include inert ingredients) are given an overall acute toxicity rating by US EPA which is shown on the label on the pesticide container: Class I: Class III: Extremely toxic Moderately toxic Class II: Highly toxic Class IV: Slightly toxic, Relatively non-toxic Practically non-toxic, Non-toxic The WHO toxicity classification system is similar (classes I-III), but assigns toxicity classes to Pesticide Active Ingredients, not formulated products. As such, it is less precise. B.2 Summary Toxicology Profiles of Pesticides Assessed by this PERSUAP. The following table summarizes the toxicological profiles of all AIs examined by this PERSUAP, as well as their EPA registration status. After the table are extended pesticide profiles, covering uses, toxicology and specific protective measures for the subject pesticides. 2013 South Sudan PERSUAP | pg. 99 Table B-1: EPA Registration Status & Toxicological Profile of Analyzed Pesticides. Note: Active Ingredients REJECTED by this PERSUAP are shown in strike-thru and highlight. Active Ingredient Chemical class EPA Status Register RUP? ed? Human Health Issues Acute toxicity Chronic Class Toxicity WHO EPA Ground- water Ecotoxicology contaminant? Fish Bees Birds Amphibians Earthworms Mollusks Crustacea Aquatic insects Plankt on RNT VHT ST MT VHT VHT VHT Insecticides Acetamiprid Neonicotinoid yes no none III None no data ST MT PNT-MT alpha cypermethrin synthetic pyrethroid no no II II, III PC no data HT HT PNT Amitraz Azadirachtin (also fungicide) Bacillus thuringiensis-Bt Beta-Cyfluthrin Formamidine yes Botanical yes no no III U II III RD None no data No data ST-HT PNT ST ST-HT ST MT PNT?? ST-MT ST-MT PNT ST NAT ST? PNT VHT MT Biopesticide yes no none III None no data PNT PNT NAT NAT ST ST yes few II II, III ED no data VHT HT PNT VHT NAT-ST VHT Carbaryl Synthetic pyrethroid Carbamate yes no II III PC, RD potential S-VHT ST-HT PNT ST-MT VHT ST HT HT MT Chlorpyrifos (< 10% AI ONLY) Clothianidin organophosp yes hate Neonicotinoid yes Some >10% AI II II, III ED no data HT HT HT MT PNT MT VHT HT MT no none II, III None potential ST NAT -HT ST-MT ST HT cypermethrin synthetic pyrethroid synthetic pyrethroid organophosp hate organophosp hate organophosp hate Neonicotonoi ds oxadiazine yes all none II, III PC, ED, RD no data HT HT PNT VHT VHT VHT yes no II III None no data HT-VHT yes II III RD potential MT HT VHT MT HT HT yes Some (Basudin) no 1b I, II, III PC, ED no data ST-MT HT HT ST-MT yes no II II PC, ED, RD potential ST VHT VHT HT MT HT VHT STVHT MT yes no II II, III None potential RNT NAT HT ST-PNT NAT ST ST MT VHT HT yes yes no no none none III II, III None None No data Not potential HT PNT NAT -HT PNT HT PNT PNT HT HT yes Some II (but only “Karate” products/above 10% AI) no III II, III ED no data VHT HT PNT II, III PC, ED potential ST -VHT HT ST-MT Cyphenothrin diazinon Dichlorvos dimethoate Imidacloprid indoxacarb insecticidal soaps lambda cyhalothrin synthetic (<10%A AI only) pyrethroid Malathion organophosp yes hate 2013 South Sudan PERSUAP | pg. 100 MT MT MT ST ST MT VHT No info MT MT HT HT VHT NATVHT MT PNT PNT VHT PNT VHT PNT VHT PNT VHT PNT ST-HT ST-MT VHT ST-VHT HT NATST Active Ingredient Chemical class EPA Status Register RUP? ed? pirimiphos methyl Organophosp yes no (pyrimiphos ahte methyl) (seed treatment only.) Profenofos organophosp yes no hate spinosad microbial yes no Sulfur Inorganic yes no (also fungicide) Thiamethoxam Neonicotinoid yes no Fungicides Azadirachtin Botanical yes no (also insecticide) Mancozeb Dithioyes no carbamate metalaxyl benzanoid yes no Sulfur Inorganic yes no (also insecticide) thiram Dithiocarbam yes no ate Fumigants Aluminium inorganic yes all phosphide phosphide Herbicides diuron Urea Yes no fluazifop-p-butyl Arlyloxypheno yes No xy –Propionic acid Glyphosate Phosphonogly yes no cine imazapyr Imidazolinone yes no pendimethalin Propanil thiobencarb 2,-6 yes Dinitroaniline Analide Yes Thiocarbamat yes e Bird repellant methyl anthranilate Veterinary Applications yes 2013 South Sudan PERSUAP | pg. 101 Human Health Issues Acute toxicity Chronic Class Toxicity WHO EPA Ground- water Ecotoxicology contaminant? III None II, III II Fish Bees Birds No data MT HT MT none no data MT-VHT No data Amphibians Earthworms MT Mollusks Crustacea MT Aquatic insects VHT Plankt on VHT VHT VHT VHT?? ST PNT PNT PNT HT PNT MTVHT MT PNT PNT RNT RNT RNT ST PNT ST PNT VHT MT MT ST MT PNT PNT NAT HT ST PNT NAT-MT HT HTVHT ST-MT MT ST ST-HT NAT-ST NAT-ST ST PNT PNT PNT ST MT NAT HT MT MT ST MT MT MT PNT PNT PNT PNT IV U U III/IV IV None None No data No data PNT ST-MT PNT-HT NAT-ST NAT PNT NAT none III PC No data RNT VHT PNT U II,III None No data PNT ST ST MT PNT?? U III PC, ED, RD No data MT-HT MT (NAT) ST MT-HT MT III U II, III IV None None potential No data ST NAT-ST PNT NAT PNT NAT NAT PNT III III ED, RD No data HT-VHT NAT ST PNT VHT HT I none no data HT HT HT U III III II, III KC None known no data ST-MT MT PNT NAT ST PNT ST III III None potential ST-MT ST ST U III None potential no III III PC, ED No data PNT NAT- PNT ST MT HT NAT-MT NAT No no III U II II, III III None Potential Minimal potential MT MT NAT PNT PNT ST MT no IV U II, III None none PNT PNT PNT PNT NAT NAT ST-MT PNT MT ST-MT NAT PNT Active Ingredient Albendazole Chemical class EPA Status Register RUP? ed? Bendimidazol Not Applicable—Orally e Administered Drug. Human Health Issues Acute toxicity Chronic Class Toxicity WHO EPA Ground- water Ecotoxicology contaminant? Fish Bees Birds Amphibians Earthworms Mollusks Crustacea Aquatic insects Plankt on No data Key to abbreviations WHO Acute Toxicity: Class O = Obsolete Pesticide; Class 1a = Extremely Hazardous, Class Ib = Highly Hazardous; Class II = Moderately Hazardous; Class III = Slightly Hazardous, Class U = Unlikely to Present Acute Hazard in Normal Use EPA Acute Toxicity: Class I = Extremely Toxic, II = Highly Toxic, III = Moderately Toxic, IV = Slightly Toxic Chronic Toxicity: KC = Known Carcinogen; PC = Possible Carcinogen; ED = Potential Endocrine Disruptor; RD = Potential Reproductive or Developmental Toxin; P = Potential Parkinson’s disease Risk Factor Ecotoxicity: VHT = Very Highly Toxic; HT = Highly Toxic; MT = Moderately Toxic; ST = Slightly Toxic; PNT = Practically Not Toxic; NAT = Not Acutely Toxic 2013 South Sudan PERSUAP | pg. 102 B.3 Insecticide Profiles These profiles discuss the uses of the pesticide and its method of action, toxicology, and protective measures. Note: These profiles OMIT all candidate AIs rejected by this PERSUAP and AIs that are approved but identified during the 2012 survey of input stores. Acetamiprid. Acetamiprid is a neonicotinoid insecticide with systemic and contact as well as by ingestion. It is available in a number of sprayable formulations including seed treatment on mustard and canola. It is labeled for control of aphids, whiteflies, leaf beetles, leaf miner, leafhopper, codling moth, psyllids, swede midge, oriental fruit moth, blue berry maggot, flea beetles, spanworm, thrips, fruit worm, root worm, Japanese beetle, grape phylloxera, on crops such as leafy vegetables, citrus fruits, pome fruits, grapes, cotton, cole crops, and ornamental plants. It is a relatively safe insecticide rated by EPA as toxicity class III for oral and dermal exposure due to eye irritation and skin irritation effects. It is in a safer IV class for acute inhalation. In chronic tests it neither is mutagenic, teratogenic nor considered a likely carcinogen and/or an endocrine disruptor. The long term toxicological effects after continuous administration of acetamiprid in the diet were investigated using rats and dogs with ‘no effect levels’ resulting from the studies on developmental or reproductive systems. In terms of its role in the environment, acetamiprid poses minimal risk to fish and wildlife. Acetamiprid ranges from practically non-toxic to moderately toxic to birds and is slightly toxic to freshwater fish and aquatic invertebrates, but is relatively non-toxic to Daphnia (a small crustacean). It also is rated from slightly to moderately toxic to bees and earthworms. US EPA concluded that acetamiprid use would generally pose low risk to threatened and endangered species. It is slowly degraded on or in plants. Its half-life in clay loam: 1 day and in light clay: 1-2 days. Acetamiprid degrades rapidly by aerobic soil metabolism. No major issues for soil mobility are apparent since low use rate and rapid degradation reduce the amount for offsite movement. Environmental residues in drinking water are predicted to be low. Acetamiprid will not bio-accumulate in fish and in sediment. However, recent studies have shown that as a neonicotinoid insecticide it has the potential to be a causal agent for honey bee colony collapse disorder (CCD) in the US and Europe through the translocation of acetamiprid residues in nectar and pollen. In honey bees, the effects of this toxic chronic exposure may include lethal and/or sub-lethal effects in the larvae and reproductive effects in the queen. As described in Section 5, analysis factor G, the small-scale and asynchronous uses of neonicotinoids envisioned in South Sudan are judged to present markedly lower risks to bee colonies than the large-scale, synchronous applications in the US and Europe, where hundreds or thousands of hectares may be sprayed at one time. And because of their low toxicity to humans, broad-spectrum uses, and low toxicity to non-insect targets, they have many other desirable attributes. They are thus approved for both seed treatment and foliar use under this PERSUAP. However, this PERSUAP will be amended to restrict their use if asynchronous small-scale applications are shown to present significant risk of CCD. 2013 South Sudan PERSUAP | pg. 103 Neonicotinoid use must be monitored for honeybee impacts. Risk is somewhat reduced by spraying crops pollinated by bees in the early evening when bees are in their hives and warning beekeepers of spray events so that they may protect/relocate hives. It may not be used on crops pollinated by honeybees when these crops are blossoming. Summary: the only negative effects of acetamiprid are its potential role in honey bee colony collapse disorder. To reduce risk to bees, spray applications of acetamiprid are restricted to the early evening. Local beekeepers must be given notice of usage so that hives may be protected/moved. Acetamiprid use must be monitored for honeybee impacts. May not be used on crops pollinated by honeybees when these crops are blossoming. Azadirachtin (Neem oil) Azadirachtin is classified as a botanical insecticide as it is extracted from the neem tree Azadirachtaindica. Neem oil is classified as a tetra-nortri-terpenoid and kills or repels mites and insects including whiteflies, aphids, scales, thrips, fungus gnats, caterpillars, mealybugs, leafminers, beetles, and leafrollers on vegetables, fruits, nuts, melons and field crops as well as in the greenhouse. It is also classified as an insect growth regulator. It is structurally similar to insect hormones called "ecdysones," which control the process of metamorphosis as the insects pass from larva to pupa to adult. Metamorphosis requires the careful synchrony of many hormones and other physiological changes to be successful, and azadirachtin seems to be an "ecdysone blocker." It blocks the insect's production and release of these vital hormones. Insects then will not molt, thus breaking their life cycle. Azadirachtin may also serve as a feeding deterrent for some insects. Depending on the stage of life-cycle, insect death may not occur for several days. However, upon ingestion of minute quantities, insects become quiescent and stop feeding. Residual insecticidal activity is evident for 7 to 10 days or longer, depending on insect and application rate. It is very safe to humans in its pure form and classified in the least toxic class IV by EPA (relatively non-toxic). But due to the irritation caused by its solvents and carriers it is classified as toxicity class II-III by EPA. Neem oil causes moderate eye irritation. If the product gets in your eye, open your eyes while rinsing slowly and gently with water for 15-20 minutes. It has proven safe regarding chronic toxicity and is not carcinogenic, mutagenic nor teratogenic. It also is not an endocrine disruptor nor has been linked to reproductive problems in long term feeding tests. It is slightly toxic to bees. Thus the farmer should not apply it while bees are actively visiting the treatment area. It is practically non-toxic to birds, mollusks, and fish, but moderately toxic to aquatic insects. It may cause a significant fish kill if large concentrations reach waterways which is highly unlikely. Azadirachtin is relatively harmless to spiders and parasitoids andother beneficials such as ladybeetles that consume aphids.This is because neem products must be ingested to be active. Azadirachtin breaks down rapidly (in 50-100 hours) in water or light, and is not likely to accumulate or cause long-term effects in groundwater or in the soil. Neem oil is most effective when applied every 7 to 14 days. For heavy insect populations, the farmer should spray on a 7 day schedule. The farmer should mix neem oil at the rate of 2 tablespoons (1 fluid ounce) per gallon of water. Thoroughly mix solution and spray all plant surfaces (including underside of leaves) until 2013 South Sudan PERSUAP | pg. 104 completely wet. Frequently mix solution as you spray. Formulations include a 10% plant extract (technical) and a 3% EC sprayable. Summary: Azadirachtin generally is a very safe insecticide with the only detraction being a potential eye irritant as its potential risks hazards are minimal to humans and non-targets in general. Farmers apply this material should wear goggles. Bacillus thuringiensis-(B.t.) B.t. is a biological insecticide (biopesticide) produced by fermentation of the naturally-occurring soil bacterium Bacillus thuringiensis. The bacteria form spores that are killed before being made into commercial pesticide products. When they form spores they also produce a crystal-like structure that is toxic to certain groups of insects.Like azadirachtin, B.t. must be eaten before it can kill the target insect pests. The crystals break down the cell lining the insect gut which causes the insects to stop feeding within 1 day. Other bacteria pass through the damaged gut tissue and multiply in the insect's body. The subsequent infection causes death within 2-3 days. B.t. only kill simmature stages of certain moths (caterpillars). There are other B.t. strains that are effective against mosquito and black fly larvae. Its specificity to pests, combined with safety to man and the natural enemies of crop pests, make it highly suitable for use in pest management programs. Because the bacteria do not spread, it is important to treat the parts of the plant normally attacked by insect larvae. It is labeled on cotton, ornamentals, pome fruit, stone fruit, vines, tomatoes, olives, soybean, tobacco, vegetables and forest trees. B.t. is considered ideal for pest management because of its specificity to pests and because of its lack of toxicity to humans or the natural enemies of many crop pests. This microbial insecticide is classified as toxicity class III - slightly toxic because of its potential to irritate eyes and skin due to solvents in the formulation. Powder B.t. products may cause eye irritation and/or sensitization. Avoid breathing spray mist or dust. Treated areas are safe to re-enter right after application. Regarding chronic toxicity, there is no indication that B.t. causes reproductive effects. There is no evidence indicating that formulated B.t. can cause birth defects in mammals. B. thuringiensis appears to have mutagenic potential in plant tissue. Thus, extensive use of B.t. on food plants might be hazardous to these crops. However there is no evidence of mutagenicity in mammalian species. It is unlikely that B.t. is carcinogenic as tumor-producing effects were not seen in 2-year chronic studies with rats.There is no evidence of chronic organ toxicity in tests with dogs, guinea pigs, rats,or humans, or other test animals. B.t. does not persist in the digestive systems of mammals that ingest it. B.t. is practically non-toxic to bees, birds, fish; however, shrimp and mussels may be affected adversely and B.t. is rated as slightly toxic against them. It did not have negative effects on frogs and salamanders but is classified as slightly toxic. B.t. spores are released into the soil from decomposing dead insects after they have been killed by it. B.t. is a naturally-occurring pathoge nthat readily breaks down in the environment. B.t. is degraded very rapidly whenexposed to UV light and is unstable inwater pH greater than 8 (highly alkaline). B.t. poses no threat via groundwater. Due to its short biological half-life and its specificity, B.t. is less likely than chemical pesticides to cause field resistance in target insects. 2013 South Sudan PERSUAP | pg. 105 B.t. is moderately persistent in soil. Its half-life in suitable conditions is about 4 months. Microbial pesticides such as B.t. are classified as immobile because they do not move or leach with groundwater. The EPA has not issued restrictions for the use of B.t. around bodies of water. For best results the farmers should apply B.t. when the immature stages of the target pest are feeding. But do not apply if there is a risk of rain within 24 hours of application. Repeat applications as necessary at 10day intervals (in the absence of rain). During hot sunny weather, apply B.t. in the late afternoon to reduce exposure to UV light and maximize residual control (3-10 days).Thorough coverage and proper application rate is essential.Use an approved spreader-sticker withpowder formulations forhard-to wet crops such as cabbage orto improve weather fastness of thespray deposits. Summary: B.t. also has the potential to irritate eyes upon exposure thus goggles should be worn during application. Effects on non-targets were rated at most as only slightly toxic and there is only a low health risk in its use. Clothianidin Clothiandin has uses both as a seed treatment and foliar spray. Clothianidin is moderately toxic to small mammals on an acute oral basis and is in toxicity class III. From a dermal exposure, however, clothianidin is less toxic (toxicity class IV). Toxicity through inhalation of clothianidin dust is toxicity class III. If clothianidin enters the eyes it becomes a mild irritant but is a nonirritant from skin contact. It is not classified as a skin sensitizer. Chronic exposure to treated seeds through accidental ingestion may result in reproductive and/or developmental effects. Such accidents should be minimal as all treated seed will be colored with a dye. Clothianidin is not mutagenic, teratogenic, or carcinogenic. Clothianidin is slightly toxic to fish and is slightly to moderately toxic to birds. However, exposure to treated seeds through ingestion may result in chronic toxic risk to birds. It is slightly toxic to crustacean and highly toxic to aquatic invertebrates and is moderately toxic to earthworms. Clothianidin is highly toxic to honeybees on an acute contact basis. Clothiandin and other neonicitonoid pesticides are identified by some studies as one of a set of causal agents for honey bee colony collapse disorder (CCD) in the US and Europe through the translocation of acetamipridresidues in nectar and pollen. In honey bees, the effects of this toxic chronic exposure may include lethal and/or sub-lethal effects in the larvae and reproductive effects in the queen. As described in Section 5, analysis factor G, the small-scale and asynchronous uses of neonicotinoids envisioned in South Sudan are judged to present markedly lower risks to bee colonies than the large-scale, synchronous applications in the US and Europe, where hundreds or thousands of hectares may be sprayed at one time. And because of their low toxicity to humans, broad-spectrum uses, and low toxicity to non-insect targets, they have many other desirable attributes. They are thus approved for both seed treatment and foliar use under this PERSUAP. However this PERSUAP will be amended to restrict their use if asynchronous small-scale applications are shown to present significant risk of CCD, or if the Clothiandin’s US EPA registration status changes. 2013 South Sudan PERSUAP | pg. 106 Neonicotinoid use must be monitored for honeybee impacts. Risk is somewhat reduced by spraying crops pollinated by bees in the early evening when bees are in their hives and warning beekeepers of spray events so that they may protect/relocate hives. It may not be used on crops pollinated by honeybees when these crops are blossoming. Environmental chemistry and fate studies indicate aquatic photolysis is the most rapid route for the environmental degradation of clothianidin and it is not likely to be a ground water contaminant. Summary. When used as seed treatment: Treated seeds exposed on soil surface may be hazardous to wildlife. Cover all treated seeds with soil in the seed furrow. Wear long-sleeved shirt, long pants, and plastic gloves when handling treated seed. Dispose of all excess treated seed. Left over treated seed may be double-sown around the headland or buried away from water sources in accordance with local requirements. Do not contaminate water bodies when disposing of rinse water from washing up afterwards. Dispose of seed packaging by burying in the soil after puncturing so that it will not be re-usable. There are some health concerns if clothianidin is ingested but this is true of all insecticides. It is highly toxic to aquatic invertebrates and honey bees in acute exposure. However, as a seed treatment material such exposures should be rare. When used as a spray (foliar application): To reduce risk to bees, spray applications of clothianidin are restricted to the early evening. Local beekeepers must be given notice of usage so that hives may be protected/moved. Clothiandin spray use must be monitored for honeybee impacts. May not be used on crops pollinated by honeybees when these crops are blossoming. Imidacloprid Imidacloprid is a systemic, chloro-nicotinyl neonicotinoid insecticide with soil, seed, and foliar uses for the control of sucking insects including leafhoppers, aphids, thrips, whiteflies, mealybugs, scales, termites, soil insects and some beetles. It is most commonly used on cereals, vegetables, and field crops and is especially systemic when used as a seed or soil treatment. It is effective on contact and via ingestion. Imidacloprid is available in a variety of formulations. The chemical works by interfering with the transmission of stimuli in the insect nervous system. Specifically, it causes a blockage in a type of neuronal pathway (nicotinergic) that is more abundant in insects than in warmblooded animals (making the chemical selectively more toxic to insects than warm-blooded animals). This blockage leads to the accumulation of acetylcholine, an important neuro-transmitter, resulting in the insect's paralysis, and eventually death. It is effective on contact and via stomach action. It has been shown to be compatible with fungicides when used as a seed treatment to control insect pests. Imidacloprid is moderately acutely toxic to mammals (toxicity class III) and also with a low dermal (class IV). It is considered non-irritating to eyes and skin (rabbits), and non-sensitizing to skin (guinea pigs). Some granular formulations may contain clays as inert ingredients that may act as eye irritants. In acute inhalation toxicity tests with rats, the airborne concentration of imidacloprid that resulted in mortality to half of the test organisms (LC50) is > 69 mg/m3air in the form of an aerosol, and >5323 mg/m3air in the form of dust. These values represent the maximum attainable airborne concentrations. A 2-year chronic toxicity feeding study in rats resulted in a No Observable Effect Level (NOEL). Reproductive effects were also a NOEL. Tests showed it was not teratogenic, but imidacloprid may be weakly mutagenic. 2013 South Sudan PERSUAP | pg. 107 Imidacloprid is considered to be of minimal carcinogenic risk, and is thus categorized by EPA as a "Group E" carcinogen (evidence of non-carcinogenicity for humans). There were no carcinogenic effects in a 2-year carcinogenicity study in rats. In short-term feeding studies in rats, there were thyroid lesions associated but only at very high doses of imidacloprid. Imidacloprid is quickly and almost completely absorbed from the gastrointestinal tract, and eliminated via urine and feces within 48 hours. Imidacloprid is moderately toxic to avian species but demonstrates low toxicity to fish. Products containing imidacloprid may be very toxic to aquatic invertebrates. It is highly toxic to bees when used as a foliar application, especially during flowering, but is not considered hazardous to bees when used as a seed treatment. In tests with Daphnia showed very highly toxic to crustacea. It is slightly toxic to earthworms. Imidacloprid is slightly to relatively non-toxic to upland game birds. But it was observed that birds learned to avoid imidacloprid treated seeds after experiencing transitory gastrointestinal distress (retching) and ataxia (loss of coordination). It was concluded that the risk of dietary exposure to birds via treated seeds was minimal. Based on these studies, imidacloprid appears to have potential as a bird repellent seed treatment. Imidacloprid demonstrates the properties and characteristics associated with chemicals detected in groundwater. The use of imidacloprid in areas where soils are permeable, particularly where the water table is shallow, may result in groundwater contamination. But as imidacloprid is moderately soluble, and has moderate binding affinity to organic materials in soils, it is generally not a high risk of groundwater contamination if used as directed. The half-life of imidacloprid in soil is 48-190 days, depending on the amount of ground cover (it breaks down faster in soils with plant ground cover than in fallow soils). The halflife in water is about 31 days. Seeds are treated with imidacloprid as an insecticide. Follow the same instructions and precautions as with clothianidin. Imidacloprid and other neonicitonoid pesticides are identified by some studies as one of a set of causal agents for honey bee colony collapse disorder (CCD) in the US and Europe through the translocation of residues in nectar and pollen. In honey bees, the effects of this toxic chronic exposure may include lethal and/or sub-lethal effects in the larvae and reproductive effects in the queen. As described in Section 5, analysis factor G, the small-scale and asynchronous uses of neonicotinoids envisioned in South Sudan are judged to present markedly lower risks to bee colonies than the large-scale, synchronous applications in the US and Europe, where hundreds or thousands of hectares may be sprayed at one time. And because of their low toxicity to humans, broad-spectrum uses, and low toxicity to non-insect targets, they have many other desirable attributes. They are thus approved forboth seed treatment and foliar use under this PERSUAP. However this PERSUAP will be amended to restrict their use if asynchronous small-scale applications are shown to present significant risk of CCD, or if Imidacloprid’s US EPA registration status changes. Neonicotinoid use must be monitored for honeybee impacts. Risk is somewhat reduced by spraying crops pollinated by bees in the early evening when bees are in their hives and warning beekeepers of spray events so that they may protect/relocate hives. It may not be used on crops pollinated by honeybees when these crops are blossoming. 2013 South Sudan PERSUAP | pg. 108 Summary: Imidacloprid is only weakly mutagenic in chronic exposure but is highly to very highly toxic to crusteacea, aquatic invertebrates and bees. As a seed treatment these negative consequences are viewed to be minor. It is moderately toxic to birds upon contact, but is repellant rather than toxic. It is only a potential pollutant of water. To reduce risk to bees, spray applications of imidacloprid are restricted to the early evening. Local beekeepers must be given notice of usage so that hives may be protected/moved. Imidacloprid spray use must be monitored for honeybee impacts. May not be used on crops pollinated by honeybees when these crops are blossoming. Indoxacarb Indoxdacarb is an oxadiazine insecticide and is used as a contact and stomach poison. It is labeled by EPA for alfalfa, cotton, peanuts, and soybeans against leafhoppers, cutworms, armyworms, bollworms, and loopers. It is a nerve poison and blocks sodium channels in nerve cells. Treated insects stop feeding, go into paralysis, and then die. Knockdown occurs in 1-2 days. It also is an ovicide. It is being considered in this PERSUAP due to its efficacy against lepidopterous and grasshopper pests of vegetables and field crops. Indoxacarb is very effective in the control of Lepidoptera species but also works wells on Homoptera and Coleoptera pests. It is also most effective when applied to insects at the larva stages. Its acute and dermal mammalian toxicity is in class III, slightly toxic. It has very low inhalation toxicity. Insecticide is a slight to mild skin irritant and is a skin sensitizer, but is not an eye irritant in animals. As an oxadiazine, it is highly toxic to fish, bees, crustacea, aquatic invertebrates, but conserves most beneficial arthropods so is good in IPM programs. It has not been found to have chronic toxicological effects and is not classified as an endocrine disruptor. It is not mutagenic, teratogenetic, or carcinogenic nor does it negatively affect the reproductive systems of mammals.It is considered to be only moderately persistent in the soil and is considered to be immobile thus not a threat to move in ground water. Indoxacard should not be directly applied to water or to areas where surface water is present. Runoff from treated areas may be hazardous to aquatic organisms in neighboring areas. Summary: indoxacarb irritates the skin on moist contact. It is highly toxic to many non-target organisms (except beneficial arthropods) but as it will not be used in large quantities it should pose a low risk. Application should only be performed when bees are not flying but most of its usage will be on cereals. insecticidal soaps A number of insecticides are in the market under the label of insecticidal soaps which have low toxicity to mammals and thus are very safe for farmers to use. Some brand names are Safer or M-Pede. The formulations are based on potassium salts of naturally derived fatty acids and are used against soft bodied insects and mites primarily on vegetables and fruits. Target insects include aphids, caterpillars, leafhoppers, leafminers, mealybugs, mole crickets, psyllids, scales, spider mites, thrips, whiteflies, and bugs. Interestingly they also provide curative action against powdery mildew fungi. Soap acts by contact with the target pests and therefore good coverage is needed at the top and bottom of leaves while spraying. 2013 South Sudan PERSUAP | pg. 109 Even though these are not nerve poisons and act mostly as repellants, they are rated as toxicity class II by EPA due to substantial, but temporary, irritation that can occur if the product enters the eyes or irritation if on the skin. Therefore the applicator must wear goggles when applying these materials. If the product enters the eyes hold the eyelids open and flush with a steady gentle stream of water for 15 minutes. They have a clean bill of health in terms of all chronic toxicity tests. Soaps are highly toxic to aquatic invertebrates, thus should not be applied directly into water. They are non-toxic to bees, which is important for vegetable and fruit crops, mammals and birds. They also break down rapidly in the environment, so much so that repeated applications may be necessary to achieve good control.Use of insecticidal soaps will be mostly for vegetables where safety is of utmost importance to both those farmers applying them as well as consumers of the protected produce. Multiple applications are needed to control most insect pests. Hard water should not be used for mixing soaps, and where soft water is not available, distilled water should be used. Before application, one should read label to check if target pest is listed for the particular crop one wants to spray. Soaps should be sprayed in the mornings and evenings when drying time is longer. Spraying should not be done when relative humidity is above 90% and temperatures are 90 degrees F and above and also on moisture or drought stressed crops. Summary: Insecticidal soaps can cause temporary irrigation to the eyes upon contact thus those applying it should use goggles. Soaps are highly toxic to aquatic invertebrates so should never be allowed to enter bodies of water. pirimiphos-methyl (also pyrimiphos methyl) Pirimiphos-methyl is the active ingredient for the popular seed treatment product Actellic against stored grain product insect pests of maize, rice, wheat, and grain sorghum. It is available as an emulsifiable concentrate liquid formulation and is meant to be sprayed onto seed to protect against build up on stored product of insect pests that often infest the crop before harvest in the field. It is not meant to protect grain that will be used as food. Therefore it is important to kill the field infestation before long term storage.It is an organo-phosphate insecticide and a nerve poison and is active by contact, ingestion, and vapor action. Its mammalian acute toxicity rating is slightly toxic by EPA (III), but moderately toxic when affected by dermal exposure (II). It is only slightly toxic as a dermal irritant and is not a skin sensitizer. Its usage precludes inhalation exposure. Chronic feeding trials showed it is not teratogenic, mutagenic, or carcinogenic nor does it produce reproductive effects. Studies suggest that pirimiphos-methyl is rapidly excreted, and no evidence of bioaccumulation was noted. As an organo-phosphate nerve poison it is harmful to non-targets in the environment and is very highly toxic to aquatic invertebrates, highly toxic to bees, highly toxic to fish, and moderately toxic to worms, and mollusks. However it is slated to be used exclusively to treat grain in storage it would not come into contact 2013 South Sudan PERSUAP | pg. 110 with these organisms in general usage (measures to ensure it does not get into the aquatic environment should be put in place). Summary: The greatest hazard presented by pirimiphos-methyl is that it would be used to protect grain that will be consumed rather than for seed. It also is rated as toxicity class II in dermal exposure so applicators must wear long sleeved shirts and trousers. It is highly toxic to a number of non-targets but would be used for protection of stored grain and thus would not be sprayed widely in the field. Spinosad Spinosad is derived from the fermented juices of a soil bacterium called Saccharopolyspora spinosad and there are two active ingredients: spinosyn A &D. These compounds are produced by certain microbes that were first discovered in soil found at an abandoned rum factory. Spinosad has a residual effectiveness of up to four weeks. This contrasts with B.t., which has a residual of only one or two days. In general, Spinosad provides effective control of pests belonging to the following groups: moths and butterflies (caterpillars); flies; mosquitoes and ants; and thrips. It is also effective for some beetles and members of the grass hopper family. Spinosad must be ingested by the insect, therefore it has little effect on sucking insects and non target predatory insects. Spinosad is relatively fast acting. The pest insect dies within 1 to 2 days after ingesting the active ingredient. Spinosad will not persist in the environment. Sunlight and soil microbes break it down into carbon, hydrogen, oxygen and nitrogen. Spinosad does not significantly affect beneficial organisms including ladybugs, green lacewings, minute pirate bugs, and predatory mites. Spinosad is listed by the Organic Materials Review Institute (OMRI) as acceptable for use during organic farming. Spinosad loses its toxicity after 8 to 24 hours and so it may be necessary to reapply a few days later if new larva hatch. Although spinosad is a broad-spectrum insecticide, meaning that it is toxic to a wide variety of insects, it is relatively non-toxic to mammals (toxicity class IV). Even though it is toxic to most insects, it is relatively safe to use around beneficial and non-target species because it is only toxic if ingested or if a treated surface is contacted while wet. Single dose oral toxicity is extremely low. No hazards anticipated from swallowing small amounts incidental to normal handling operations. It may cause slight eye irritation, but even prolonged exposure is not likely to cause significant skin irritation. A single prolonged exposure is not likely to result in the material being absorbed through skin in harmful amounts. It did not cause allergic skin reactions when tested with guinea pigs. Tests for carcinogenicity were negative and it does not cause birth defects nor negative effects on the reproductive system. Chronic tests on laboratory animals were all negative. It is highly toxic to bees if sprayed directly onto them but is practically non-toxic once the residue dries on the foliage. Therefore one should not spray when bees are flying. It is non-toxic to predatory sucking bugs, ladybeetles, and lacewings so work well in IPM programs. If used on a crop, the crop can still be labeled as organically grown. This insecticide would prove useful in vegetable culture due to its low risk of being poisonous to applicator and consumer. 2013 South Sudan PERSUAP | pg. 111 It is soluble in water but breaks down on a leaf surface or in the soil after a few days so that it does not pose a threat to ground water. Summary: Spinosad can cause eye irritation so applicators must wear goggles. It is toxic to bees on contact thus should not be used when bees are active. sulfur Sulfur is a non-systemic contact insecticide/acaricide and protectant fungicide. Its properties have been recognized since 1880. It is used for control of apple scab, peanut leaf spot, brown rot, downy mildew, and powdery mildew diseases. It is used on apples, gooseberries, hops, ornamentals, grapes, peaches, strawberries, sugar beets, beans, carrots, lucerne, melons, and tomatoes. As an acaricide it controls many kinds of mites. As an insecticide it controls thrips and scales. Sulfur is a component of the environment and is even needed by humans for nutrition and health. But ironically it is also a pesticide. Some formulations also can cause phytotoxicity on certain crops or varieties. Sulfur comes in wettable, flowable, and colloidal formulations. Compatibility with other products is considered good. Numerous mixed products with insecticides and fungicides are manufactured. For reasons of phytotoxicity, mixing sulfur with oils should be avoided. Wettable sulfurs are the safest on tender foliage and its effectiveness is based on the finely ground particles. Sulfur is known to be of low toxicity to humans, and poses very little if any risk to animal health. Short-term studies show that sulfur is of very low acute oral toxicity and does not irritate the skin (it has been placed in EPA Toxicity Category IV, the least toxic category, for these effects). Sulfur also is not a skin sensitizer. However, it can cause some eye irritation, dermal toxicity and inhalation hazards for which WHO grades it in toxicity class III. Acute exposure inhalation of large amounts of the dust may cause catarrhal inflammation of the nasal mucosa which may lead to hyperplasia with abundant nasal secretions. Chronic exposure to elemental sulfur at low levels is generally recognized as safe. No known risks of oncogenic, teratogenic, or reproductive effects are associated with the use of sulfur. Also, sulfur has been shown to be non-mutagenic in microorganisms. Epidemiological studies show that mine workers exposed to sulfur dioxide throughout their lives often had eye and respiratory disturbances, chronic bronchitis and chronic sinus effects. Repeated or prolonged exposure to dust may cause irritation to the mucous membranes and can incite asthma attacks. Sulfur is considered practically non-toxic to non-targets such as bees, birds, fish, crustacea, and amphibians. Elemental sulfur is slowly converted to sulfate in soil by the action of autotrophic bacteria in the natural sulfur cycle. Elemental sulfur leaches in soil as sulfate at a slow rate. Summary. Sulfur is phytotoxic to some crops or specific varieties so must be first tested in small patches. In dust form which would be contacted when measuring amounts to place in sprayers the farmer should use goggles. Chronic exposure can cause problems but its usage is likely to be minimal. 2013 South Sudan PERSUAP | pg. 112 B.4 Fungicide Profiles These profiles discuss the uses of the pesticide and its method of action, toxicology, and protective measures. Note: that these profiles OMIT all candidate pesticides rejected by this PERSUAP and approved pesticides identified during the 2012 survey of input stores. azadirachtin (Neem Oil) Neem has fungicidal properties against powdery mildew fungi. See discussion under insecticides, above. mancozeb Mancozeb is anethylene bis-dithiocarbamate (EBDC) fungicide which is sold under the most popular brand name of Dithane M45 is used to protect many fruit, vegetable, nut and field crops against a wide spectrum of fungal diseases, including potato early and late blight, leaf spot, scab, downy mildew and rust. It is also used as a seed treatment of cotton, potatoes, maize, safflower, sorghum, peanuts, tomatoes, flax, and cereal grains. Mancozeb is available as dusts, liquids, water dispersible granules, as wettable powders, and as ready-to-use formulations. It may be commonly found in combination with zineb and maneb. Mancozeb is labeled by EPA in toxicity class III via both the oral and dermal route . It is a mild skin irritant and sensitizer, and a mild to moderate eye irritant in rabbits. Workers with occupational exposure to mancozeb have developed sensitization rashes. In chronic toxicity tests no toxicological effects were apparent in rats fed dietary doses of 5 mg/kg/day in a long-term study. Impaired thyroid function was observed as lower iodine uptake after 24 months in dogs fed doses of 2.5 and 25 mg/kg/day of mancozeb, but not in those dogs fed 0.625 mg/kg/day. A major toxicological concern in situations of chronic exposure is the generation of ethylenethiourea (ETU) in the course of mancozeb metabolism and as a contaminant in mancozeb production. ETU may also be produced when EBDCs are used on stored produce or during cooking. In addition to having the potential to cause goiter, a condition in which the thyroid gland is enlarged, this metabolite has produced birth defects and cancer in experimental animals. Chronic reproductive effects were determined in a three-generation rat study with mancozeb at a dietary level of 50 mg/kg/day there was reduced fertility but no indication of embryo-toxic effects. It is unlikely that mancozeb will produce reproductive effects in humans under normal circumstances. No teratogenic effects were observed in a three-generation rat study with mancozeb at a dietary level of 50 mg/kg/day. In view of the conflicting evidence, the teratogenicity of mancozeb could not be ascertained. Mancozeb was found to be mutagenic in one set of tests, while in another it did not cause mutations. Mancozeb is thought to be similar to maneb, which was not mutagenic in the Ames Test. Data regarding the mutagenicity are inconclusive but suggest that mancozeb is either not mutagenic or weakly mutagenic. No data are available regarding the carcinogenic effects of mancozeb. While studies of other EBDCs indicate they are not carcinogenic, ETU (a mancozeb metabolite), has caused cancer in experimental animals at high 2013 South Sudan PERSUAP | pg. 113 doses. Thus, the carcinogenic potential of mancozeb is not currently known. The main target organ of mancozeb is the thyroid gland; the effects may be due to the metabolite ETU. Mancozeb is rapidly absorbed into the body from the gastrointestinal tract, distributed to various target organs, and almost completely excreted in 96 hours. Mancozeb has modest effects on non-target organisms. Mancozeb is slightly toxic to birds, and is moderately to highly toxic to fish and aquatic invertebrates and is rated as slightly toxic in crayfish, and moderately toxic to both tadpoles and bees. Mancozeb is of low soil persistence, with a reported field half-life of 1 to 7 days. Mancozeb rapidly and spontaneously degrades to ETU in the presence of water and oxygen. ETU may persist for longer, on the order of 5 to 10 weeks. Because mancozeb is practically insoluble in water, it is unlikely to infiltrate groundwater. Studies do indicate that ETU, a metabolite of mancozeb, has the potential to be mobile in soils. However, ETU has been detected (at 0.016 mg/L) in only 1 out of 1295 drinking water wells tested. Mancozeb degrades in water with a half-life of 1 to 2 days in slightly acidic to slightly alkaline conditions. When used as directed, mancozeb is not poisonous to plants. Summary. Mancozeb is an eye irritant and thus goggles are needed during application. A number of medical issues occur from chronic exposure to the metabolite including enlarged thyroid glands, birth defects and cancer in experimental animals. It is unlikely however that chronic exposure will be a problem in South Sudan. It is highly toxic to fish and aquatic invertebrates and so needs to be kept from bodies of water. metalaxyl Metalaxyl is a systemic fungicide belonging to the benzenoid class and is absorbed through the leaves, stems and roots. It is used to control plant diseases such as damping off, Phytophthora, Pythium, downy mildew, potato blights. It is used as a seed treatment for long lasting protection. It is used on many food and feed crops, and on non-food crops and for residential and greenhouse uses. Metalaxyl may be applied by foliar application, soil incorporation, surface spraying, drenching, sprinkler or drip irrigation, and soil mix or seed treatment. Metalaxyl generally is of low acute toxicity but is a moderate eye irritant and has been placed in EPA Toxicity Category III, or slightly toxic, for eye irritation effects. Rabbits exhibited slight eye and skin irritation, but guinea pigs displayed no sensitization after metalaxyl exposure. In a sub-chronic feeding study using rats, reduced food consumption and liver cell effects were noted at the highest dose tested. In a dermal study using rabbits, no treatment-related effects were observed. In a chronic toxicity study concluded that metalaxyl did not have carcinogenic potential in laboratory animals. Although people may be exposed to residues of metalaxyl in many food commodities, the chronic dietary risk from all uses is minimal. Application and post-application risks to workers and others also are minimal because metalaxyl has no toxicological endpoints of concern. Feeding data suggest that metalaxyl is unlikely to cause reproductive effects. Nor is it teratogenic or mutagenic. Available studies of the carcinogenicity of metalaxyl are inconclusive. The liver is the primary target organ for metalaxyl in animal systems. Studies with rats and goats showed rapid metabolism and excretion via the urine and feces. 2013 South Sudan PERSUAP | pg. 114 Metalaxyl poses minimal if any risks to birds, small mammals, fish and estuarine species, honey bees and aquatic plants. The registered uses of metalaxyl do not present an acute hazard to endangered terrestrial and aquatic animals or plant species. Aquatic invertebrates and crusteacea are slightly more susceptible to metalaxyl, which is rated as slightly toxic to these organisms. Metalaxyl is moderately stable under normal environmental conditions. It is photolytically stable in water when exposed to sunlight, with a half-life of 400 days, and is stable to photo degradation in soil with a halflife ranging from 7-170 days.These properties in combination with its long persistence pose a threat of contamination to groundwater. In aquatic systems, metalaxyl degrades moderately rapidly. Very little of the chemical is lost to volatilization. Metalaxyl is persistent and mobile, and both metalaxyl and its major degradation metabolites are readily leached in many soils. Monitoring data demonstrate that metalaxyl and its primary degradation products have the potential to reach groundwater. Metalaxyl is not absorbed directly from the soil by plants. Summary. Metalaxyl is an eye irritant so farmers need to wear goggles during application. It has a slight potential to be a contaminant in water so should not be used near bodies of water. Sulfur Sulfur has properties against powdery and down mildews and is a fungicide, acaricide, and insecticide. Its use would be for control of plant diseases on vegetable crops. See discussion under under insecticides. thiram Thiram is a non-systemic fungicide used as a seed protectant (e.g., small seeded vegetables, large seeded vegetables, cereal grains and other seeds) from fungal diseases. In addition, thiram is used as an animal repellent to protect sown-seeds from damage by rabbits, rodents, and deer. Thus as a seed treatment may have an additional use in preventing vertebrate wild animals from removing seeds from the soil. Thiram is applied to seeds prior to planting. It is available in a variety of formulations. Thiram exhibits low to moderate acute toxicity via the oral (toxicity class III) and dermal (toxicity class III) routes of exposure. Thiram is considered to be moderately toxic via the inhalation route of exposure (toxicity class II). It is a moderate eye irritant (toxicity class II), a slight dermal irritant (toxicity class IV), and a moderate skin sensitizer. Thiram is a neurotoxicant and can also act as a developmental toxicant. The neurotoxic effects of thiram seen in laboratory animals include lethargy and reduced motor activity. In carcinogenicity studies in rats and mice, thiram did not demonstrate any significant evidence of carcinogenic potential. It was rated as practically non-toxic to birds, but is very highly toxic to amphibians. It is highly toxic to fish, earth worms, and aquatic invertebrates. Thiram is expected to be sufficiently mobile and persistent in some cases to reach surface waters in concentrations high enough to impact aquatic life. It should therefore not be used near water bodies, nor should wastes from its use be disposed of where they can reach surface water bodies or groundwater aquifers. 2013 South Sudan PERSUAP | pg. 115 Mammals and birds in the field may be exposed to thiram by ingesting treated seeds or by other routes, such as incidental ingestion of contaminated soil, dermal contact with treated seed surfaces and soil during activities in the treated areas, inhalation of pesticide vapor and contaminated particulate, and ingestion of drinking water contaminated with the pesticide. The ecological risk assessment for birds shows risks for reproductive effects. Overall, it is not considered to be toxic to birds, as it causes them to retch to entrain an avoidance behavior. Summary. Thiram is moderately toxic via inhalation and is an eye irritant. It is also can cause skin rashes. Applicators should wear goggles and long sleeved shirts and long pants. From chronic exposure it can cause lethargy and reduced motor activity but this is a low risk in South Sudan where pesticide usage will be minimal. It is a likely ground water contaminant and is very toxic to amphibians, fish, earthworms, and aquatic vertebrates so needs to be kept from bodies of water. B.5 Herbicide Profiles These profiles discuss the uses of the pesticide and its method of action, toxicology, and protective measures. Note: that these profiles OMIT all candidate pesticides rejected by this PERSUAP, and approved pesticides identified during the 2012 survey of input stores. fluazifop-p-butyl Fluazifop-p-butyl is a selective post-emergence phenoxy herbicide used for control of most annual and perennial grass weeds in cotton, soybeans, stone fruits, asparagus, coffee, common beans, and others. It has essentially no activity on broadleaf species. It is compatible with a wide variety of other herbicides. It is available as an emulsifiable concentrate. Chronic toxicity tests where rats were fed small amounts of fluazifop-p-butyl for 90 days developed no compound-induced effects. Further tests showed no reproductive effects and it is not teratogenic, mutagenic nor carcinogenic. In addition organ toxicity has not been seen in experimental animals. Fluazifop-p-butyl is practically nontoxic to bird species; but is highly tomoderately toxic to fish, but only slightly toxic to other aquatic species, such as invertebrates. The compound is practically non toxic to bees. Fluazifop-p-butyl is of low persistence in moist soil environments, with a reported half-life in these conditions of less than 1 week. Fluazifop-p-butyl breaks down rapidly in moist soils to the fluazifop acid, which is also of low persistence. Fluazifop-p-butyl and fluazifop-p are both reported to be of low mobility in soils and not to present appreciable risks for groundwater contamination. Fluazifop-p-butyl is rapidly hydrolized (cleaved apart by water) under most conditions to the fluazifop acid. After uptake by the leaves of plants, Fluazifop-p-butyl is rapidly broken down in the presence of water to fluazifop-p, which is translocated throughout the plant. The compound accumulates in the actively growing regions of the plant (meristems of roots and shoots, root rhizomes and stolons of grass), where it interferes with energy (adenosine triphosphate or ATP) production and cell metabolism in susceptible species. Summary. Fluazifop-p-butyl is a mild eye irritant so applicators should wear goggles. It is highly toxic to fish so should be kept from bodies of water. 2013 South Sudan PERSUAP | pg. 116 glyphosate salt Glyphosate is supplied in several formulations with glyphosate acid being the most common. The isopropylamine salt is being recommended which is the least toxic (class III). Glyphosate salt is a broadspectrum, non-selective systemic herbicide. It is useful on essentially all annual and perennial plants including grasses, sedges, broad-leaved weeds, and woody plants. It can be used on non-cropland and among a great variety of crops. Even though the LD50 values show the compound to be relatively non-toxic it can cause significant eye irritation. The toxicity of the more commonly known technical product (glyphosate), and the formulated product (Roundup) falls into toxicity class II. In a number of human volunteers, patch tests with glyphosate salt produced no visible skin changes or sensitization. Sub-chronic and chronic tests with glyphosate have been conducted and with few exceptions there were no treatment-related easily observable or cellular changes. In a chronic feeding study with rats, no toxic effects were observed given at high doses. No toxic effects were observed in a chronic feeding study with dogs fed the highest dose tested. The lifetime administration of very high amounts of glyphosate produced only a slight reduction of body weight and some microscopic liver and kidney changes. Blood chemistry, cellular components, and organ function were not affected even at the highest doses. Hens fed massive amounts over three days and again 21 days later showed no nerve related effects. Most of the field and laboratory evidence shows that glyphosate produces no reproductive changes in test animals. It is unlikely that the compound would produce any reproductive effects in humans. In a teratology study with rabbits showed it was safe; in addition no developmental toxicity was observed in the fetuses at the highest dose tested. The compound did not cause mutations in microbes. Genetic tests on eight different kinds of bacterial strains and on yeast cells were all negative. The compound poses little mutagenic risk to humans. Rats and dogs and mice fed glyphosate over a wide range of doses showed no cancer related effects directly due to the compound. EPA has stated that there is sufficient evidence to conclude that glyphosate is not carcinogenic in humans. Glyphosate is only slightly toxic to wild birds. The bioaccumulation factor in chicken muscle, fat, eggs, and liver was low. Glyphosate is practically non-toxic to fish. There is a very low potential for the compound to build up in the tissues of aquatic invertebrates or other aquatic organisms. Glyphosate is relatively non-toxic to honeybees. Glyphosate is highly adsorbed on most soils especially those with high organic content. The compound is so strongly attracted to the soil that little is expected to leach from the applied area. Unbound glyphosate can be degraded by bacteria. The time it takes for half of the product to break down ranges from 1 to 174 days. Because glyphosate is so tightly bound to the soil, little is transferred by rain or irrigation water. One estimate showed less than two percent of the applied chemical lost to runoff. The herbicide could move when attached to soil particles in erosion run-off. Photodecomposition plays only a minor role in environmental breakdown. Once in the plant tissue, the chemical is translocated throughout the plant, including to the roots. 2013 South Sudan PERSUAP | pg. 117 Summary: Glyphosate salt can be a significant eye irritant so goggles should be worn. No other significant effects are noted. imazapyr Imazapyr is of the imidazolinone chemical class and is a systemic, non-selective herbicide used for pre- and post-emergent control of annual and perennial grasses and broadleaf weeds, brush, vines, and many deciduous trees in non-agricultural settings. Agricultural uses of imazapyr include field corn and grass. Imazapyr is applied either as an acid or as the isopropylamine salt. Imazapyr is absorbed by the leaves and through the root system, and acts by disrupting protein synthesis. Imazapyr has been given an unique role in the control of striga. Maize has been developed which is herbicideresistant thus when maize seed is coated with low doses of the herbicide, about 30g imazapyr per hectare, striga can be controlled. The herbicide resistant maize is called StrigAway and when it germinates, it absorbs some of the herbicide used in coating it. The germinating maize also stimulates striga to germinate, and as it attaches to the maize root, it is killed before it can cause any damage. Herbicide that is not absorbed by the maize plant diffuses into the soil and kills striga seeds that have not germinated. It is for this unique usage that imazapyr is being included in this PERSUAP. However it is not known at this time how important striga is in maize culture in South Sudan. Imazapyr has low acute toxicity via the oral (class IV) and dermal (class III) routes exposure. Imazapyr has been placed in acute class II for the inhalation exposure. It is not irritating to the skin, and is negative for dermal sensitization. However, imazapyr results in irreversible eye damage (class I) which will be less of a hazard as it is being used as a seed treatment. Farmers will have to use gloves when sowing the crop. Normally, an acute hazard value is chosen from acute (non-lethal), sub-chronic, developmental toxicity studies from which there is reasonable evidence that an exposure can lead to a potential effect. The available data suggest that a single exposure imazapyr does not result in an effect of concern for risk assessment purposes. From chronic exposure there is no evidence of human carcinogenicity, mutagenicity, or teratogenicity. No reproductive malfunction was noted in chronic feeding tests. It is rated as practically non-toxic to bees as acute exposure and similarly to fish, birds, crustacean, and aquatic invertebrates as well. Imazapyr is moderately persistent in the plant and soils. The primary route of degradation is microbial activity. The half-life of imazapyr is 90 days. Imazapyr is moderately persistent with a moderate soil adsorption coefficient. There is a moderate potential for imazapyr to leach into groundwater and a high potential for surface water runoff. Summary. Imazapyr results in severe irreversible eye damage so that when it is applied as a seed treatment the farmers need to use plastic gloves and goggles and wash up afterwards. It is a threat to leach into groundwater but the small quantities used in each application make this possibility of minimal consequence. 2013 South Sudan PERSUAP | pg. 118 Pendimethalin Pendimethalin is a selective dinitroamino-benzene herbicide used to control most annual grasses and certain broadleaf weeds in field corn, potatoes, rice, cotton, soybeans, tobacco, peanuts, and sunflowers. It is used both pre-emergence, that is before weed seeds have sprouted, and early post-emergence. Incorporation into the soil by cultivation or irrigation is recommended within 7 days following application. It is absorbed by plant roots and shoots, and inhibits cell division and cell elongation. Once absorbed into plant tissues, translocation is limited and pendimethalin breaks down via oxidation. Pendimethalin is a slightly toxic compound in EPA toxicity class III by both oral and dermal exposure. Pendimethalin is slightly to practically nontoxic by ingestion. It is slightly to practically nontoxic by skin exposure. It is not a skin irritant or sensitizer in rabbits or guinea pigs, but it causes mild eye irritation in rabbits. The inhalation 4-hour test indicated practically no toxicity via this route. In a three-generation reproductive study of rats suggested that pendimethalin is unlikely to cause reproductive effects in humans under normal circumstances. It does not appear that pendimethalin is teratogenic, mutagenic, nor carcinogenic. Chronic exposure to pendimethalin has resulted in increased liver weights in test animals. Pendimethalin is largely unabsorbed from the gastrointestinal tract, and excreted unchanged in the feces. Pendimethalin is slightly toxic to birds, but is highly toxic to fish and aquatic invertebrates. It is slightly toxic to Daphnia magna, a small freshwater crustacean. The bio-concentration factor for this compound in whole fish is 5100, indicating a moderate potential to accumulate in aquatic organisms. Pendimethalin is non-toxic to bees. Pendimethalin is moderately persistent, with a field half-life of approximately 40 days. It does not undergo rapid microbial degradation except under anaerobic conditions. Slight losses of pendimethalin can result from photodecomposition and volatilization. Pendimethalin is strongly adsorbed by most soils. Increasing soil organic matter and clay is associated with increased soil binding capacity. It is practically insoluble in water, and thus will not leach appreciably in most soils, and should present a minimal risk of groundwater contamination. Pendimethalin is stable to hydrolysis, but may be degraded by sunlight in aquatic systems. Pendimethalin may also be removed from the water column by binding to suspended sediment and organic matter. Summary: Pendimethalin causes mild eye irrigation so farmers need to use goggles. Chronic exposure is unlikely so that the physiological effects noted probably are only remotely possible. It is highly toxic to fish and aquatic invertebrates so needs to be kept from bodies of water. thiobencarb Thiobencarb is a selective, systemic, pre emergence and early post emergence rice herbicide, absorbed by coleoptile, mesocotyl, roots and leaves of target plants. It inhibits shoot growth of emerging seedlings by interfering with protein synthesis. Thiobencarbwill control most annual grasses, broadleaved weeds and sedges in dry-seeded riceup to five weeks following application. 2013 South Sudan PERSUAP | pg. 119 The oral toxicity of thiobencarb is in class (III) while dermal toxicity is in class IV. The product has low toxicity by the inhalation route (class IV). It will irritate the skin and eye irritation tests produced reversible slight to severe ocular effects which cleared within 7 days. This product did not produce a skin sensitization reaction in guinea pigs. Thiobencarb is non-mutagenic, non-teratogenic, and non-carcinogenic based on standard tests. A twogeneration reproduction study conducted with thiobencarb technical in rats did not show impairment to reproductive performance. Thiobencarbis is practically nontoxic to birds and bees, and has moderate toxicity in amphibians, aquatic invertebrates, and zooplankton. It is moderately to highly toxic in crustaceans and fish, and it is slightly to moderately toxic in mollusks. Thiobencarb is rapidly adsorbed by soil and not easily leached thus is of little consequence as a groundwater contaminant. Degradation is primarily by microbial breakdown with little loss from volatilization and photodegradation. The half-life of the material varies from 2-3 weeks under aerobic conditions to 6-8 months under anaerobic conditions. Summary: Thiobencarb can irritate the skin and eye so that applicators should wear goggles and long sleeved shirts and trousers. It is moderately toxic some non-targets so should not be used near bodies of water. B.6 Bird Repellant Profiles methyl anthranilate Methyl anthranilate has been used by the food and drug industry for more than forty years to flavor candy, sodas, gum and drugs. It is on the U.S. Food & Drug Administration's "Generally Recognized as Safe" list. Bird Shield is the brand name and is a bird repellant derived from an extract of concord grapes thus is safe for humans. EPA has registered it on maize, sorghum, rice, and sunflower. Bird Shield works best when applied to crops early in the morning or in the late afternoon when temperatures are lowest and winds are calm. Extremely hard water that contains high amounts of iron and calcium can affect the tank solution, so compatibility tests are suggested prior to tank mixing. Eye irritation comes from the solvent and carrier used in the formulations. Bird Shield is rain fast and is gradually broken down by sunlight and air movement and does pose a threat to the environment. Summary: Methyl anthranilate poses little to no risk to the environment and to non-targets. However, it only irritates the eyes upon contact so that applicators must wear goggles. 2013 South Sudan PERSUAP | pg. 120 ANNEX C: MANDATORY ELEMENTS OF PESTICIDE SAFER USE TRAINING Pesticide safer use training must address the following minimum elements. Definition of Pesticides Pesticide risks and the understanding that pesticides are bio-poisons Concepts of active ingredients vs formulated products Classes of pesticides and the concept that specific pesticides are effective against only certain classe of organism. Concept of proper application rates and the concept of pesticide resistance and techniques for preventing resistance. Concept that pesticides have specific organisms against which they are effective Survey of the core elements of Safer Pesticide Use: IPM, Safer Purchase, Transport, Storage, Mixing, Application, Reentry and pre-harvest Intervals, Clean-up & Disposal, including specific treatment of PPE Pesticide First Aid & Spill Response Interpretation of Pesticide Labels --- particularly to understand PPE requirements and other precautions, dosage rates, and to identify AIs, and expiration dates Proper sprayer operation and maintenance. The following sections provide specific content notes on some of these topics. C.1 Integrated Pest Management IPM is an integral part of Safer Pesticide Use and supporting the use of pesticides only within an IPM framework is core requirement of this PERSUAP. Therefore Pesticide Safer use training must build an understanding of IPM fundamentals. The heart of IPM is an understanding of the relationship between pest injury, damage, yield loss, and economic loss. IPM was developed within the discipline of economic entomology. Farmers who are not trained in IPM may spray a crop upon seeing a single insect in a field or a few brown spots of a disease on a leaf. Pesticides are expensive and should only be used as a last resort and only when economically justified. Extension workers and farmers first need to understand the relationship between increasing injury levels and crop yield of each pest which is known as the damage function. A small amount of injury in fact can cause yield gain called overcompensation. In most cases significant yield loss does not occur until a certain pest density occurs in the field because the crop can compensate for this level of damage. Then there is normally a linear decline in yield with increasing pest density. From this relationship the economic injury level, economic threshold or action threshold can be defined in the case of insect pests. Other methods to assess the threat of weeds and crop diseases will need to be developed based on field experience. Certain guidelines can be developed based on experience in neighboring countries. 2013 South Sudan PERSUAP | pg. 121 IPM involves several tiers of integration. First there is the integration between control methods which must be harmonious. Non harmonious examples are the negative effect of pesticides on biocontrol agents. Biocontrol, which is the action of natural enemies against the pest, is free to the farmer so it behooves him not to upset this delicate balance unless absolutely necessary. The next tier of integration occurs between the different pest control disciplines. When one sprays an insecticide, herbivorous insects feeding on weeds are killed. Some fungicides also kill insect pests. Removing weeds forces army worms to now feed on the crop. The third tier is the integration with the cropping system and farming system. Crops that are well nourished can tolerate more damage. Many crop husbandry practices also affect pests, either positively or negatively. Application of Nitrogen fertilizer is an example. On the one hand it can stimulate plant diseases but on the other can provide strength of the crop to tolerate insect pest damage. Pests do not occur in isolation thus the crop has to deal with multiple pests as well as multiple stresses. A crop that is weak from zinc deficiency or water stress cannot tolerate as much pest damage as a healthier crop. In fact some sucking insect pests explode in abundance on a drought stressed crop further exacerbating the problem. The relationship between multiple pests and multiple stresses can be additive (1+1 = 2), antagonistic (1 + 1 = 1), or synergistic (1 + 1 = 3). This can occur in terms of yield loss from adding more pests or stresses or can occur in terms of yield gain when one or more stresses are removed due to an effective curative control effort. The IPM training will provide examples of the different pest control methods beginning with preventative ones which start with quarantine and cultural crop husbandry methods based on good agronomic practices which increase the crop’s tolerance for pest injury. Many of these methods fall under the rubric of cultural control. Host plant resistance is also a good example of prevention. Other pest control methods can be physical (a fence to keep out animals), mechanical (using nets), or biological (parasitoids, predators, pathogens). Biological includes natural control and man induced methods such as purchasing and releasing natural enemies or using selective pesticides. As a last resort there is chemical control. Farmers will need to be trained to recognize pests in the field and to be able to assess their densities as well as know of the several methods of control for each. Training manuals with good color photos will be essential in the training process. Government approved recommended practices need to be published and updated annually in guides given to extension officers. Using personal protective equipment and clothing needs to be understood for each level of toxicity. This information is summarized below as well as other information on the risks and hazards of transport, storage, and disposal of pesticides. Safety practices need to be learned such as that pesticides should not be stored in the home where children can find them. C.2 Protective clothing and equipment Training must address the types of personal protective equipment (PPE), when theyshould be worn and why. HANDLER PPE FOR WORKER PROTECTION STANDARD PRODUCTS Toxicity Category by Route of Exposure of End-Use Product Route of Exposure I DANGER 2013 South Sudan PERSUAP | pg. 122 II WARNING III CAUTION IV CAUTION Dermal Toxicity or Skin Irritation 1 Potential / Coveralls worn over long- Coveralls worn over longsleeved shirt and long sleeved shirt and long pants pants Long-sleeved shirt and long pants Long-sleeved shirt and long pants Socks Socks Socks Socks Chemical-resistant footwear Chemical-resistant footwear Rubber boots or shoes Rubber boots or shoes Chemical-resistant 2 Gloves / Chemical-resistant 2 Gloves / Chemical-resistant 2 Gloves / No minimum / 4 No minimum / 4 No minimum / No minimum / Inhalation Toxicity Respiratory protection 3 device / 5 Eye Irritation Potential Goggles / 4 4 Respiratory protection 3 device / 5 Goggles / No minimum / 4 1 / If dermal t1/Toxicity and skin irritation toxicity categories are different, PPE shall be determined by the more severe toxicity category of the two. If dermal toxicity or skin irritation is category I or II, refer to the pesticide label/MSDS to determine if additional PPE is required. 2 / Refer to the pesticide label/MSDS to determine the specific type of chemical-resistant glove. 3 / Refer to the pesticide label/MSDS to determine the specific type of respiratory protection. 4 / Although no minimum PPE is required for these toxicity categories and routes of exposure, some specific products may require PPE. Read pesticide label/MSDS. 5 /“Protective eyewear” is used instead of “goggles” and/or “face shield” and/or “shielded safety glasses” and similar terms to describe eye protection. Eye glasses and sunglasses are not sufficient eye protection. Note: Where necessary, Farmers can make their own PPE. For example a plastic or water repellent apron from the waist to ankle length, can be fashioned from a large piece of plastic purchased in the local market (important if walking through the spray path). C.3 Proper Spray Technique: Protecting against herbicide spray drift Many farmers apply pesticides with a knapsack sprayer which means that delivery of pesticides is either in front of the person spraying or to the side, not to the back as it is with tractor drawn sprayers. Inevitably pesticide drift will be carried by the wind and potentially settle on sensitive ecosystems such as national parks if they are nearby. Herbicides pose the greatest risk for environmental damage especially when their drift lands on a neighbors crops and kills or severely damages them. The potential for drift to travel long distances has been shown with the highly residual chlorinated hydrocarbon pesticides such as DDT have been found at both of the poles on earth that arrived via the atmosphere. They are in sufficient quantity that their amount can be measured. Pesticides are transported to the earth’s distant poles are bound tightly to dust particles carried high into the atmosphere and moved on jet streams. Their presence only represents a very small percentage of the drift. Spray drift is a mostly local phenomenon, whereby spray droplets move to areas near to the field. There are a number of ways in which pesticide drift can be minimized: 2013 South Sudan PERSUAP | pg. 123 Increase spray droplet size. Fog sized droplets can travel three miles while a coarse droplet < 10 feet. To increase droplet size, the farmer can reducing spray pressure (ie. 30 to 50 pounds per square inch with 5 to 20 gallons of water per acre), increase nozzle orifice size, use special drift reduction nozzles, and purchase additives that increase spray viscosity. Distance between nozzle and target. Reduce the distance between the nozzle and the target crop. Temperature and relative humidity. As pesticides vaporize more under high temperature, low relative humidity and/or high temperature will cause more rapid evaporation of spray droplets between the spray nozzle and the target. Evaporation also reduces droplet size, which in turn increases the potential drift of spray droplets. It is best not to spray in the heat of the day to avoid drift problems. Avoid spraying when the wind speed > 10 mph. As drift occurs as droplets suspended in the air, it is best to minimize applications during windy days. If spraying has to be done, however, the farmer should spray away from sensitive areas. Local terrain can influence wind patterns, thus every applicator should be familiar with local wind patterns and how they affect spray drift. Do not spray when the air is completely calm or when a temperature inversion exists. When the air is completely still, small spray droplets becomesuspended in the warm air near the soil surface and will be readily carried aloft and away from susceptible plants by vertical air movement. A temperature inversion occurs when air near the soil surface is cooler than the higher air. Temperature inversions restrict vertical air mixing, which causes small suspended droplets to remain in a concentrated cloud and impact plants two miles or more downwind. This cloud can move in unpredictable directions due to the light variable winds common during inversions. Application height. Making applications at the lowest height reduces exposure of droplets to evaporation and wind. C.4 Pesticide Transport Where IPs or beneficiary groups will be transporting pesticides, training must address the fundamentals of safe transport of pesticides. (Some of the largest accidents involving pesticides have occurred during transportation.) Drivers should be trained on how to deal with and contain spills and not to transport pesticides with food. Many of the agro dealers are also small and they ship their stock individually in relatively small quantities. Agro dealers should be sensitized about minimizing potential risks during transporation. Minimum elements of safer transport are: keep pesticides away from passengers, livestock and foodstuffs; do not carryp esticides in driver’s compartment; containers must be in good condition; do not transport packages with any leakage; transport under cover and protected from rain, and direct sunlight. C.5 First aid Training must include the basis elements of pesticide first aid, as per the table below. Wherever possible, personnel at local health facilities should participate in/receive such training. 2013 South Sudan PERSUAP | pg. 124 General Poison on skin Read the first aid instructions on the pesticide label, if possible, and follow them. Do not become exposed to poisoning yourself while you are trying to help. Take the pesticide container (or the label) to the physician. Act quickly Remove contaminated clothing and drench skin with water Cleanse skin and hair thoroughly with detergent and water Dry victim and wrap in blanket. Chemical burn on skin Wash with large quantities of running water Remove contaminated clothing Cover burned area immediately with loose, clean, soft cloth Do not apply ointments, greases, powders, or other drugs in first aid treatment of burns Poison in eye Wash eye quickly but gently Hold eyelid open and wash with gentle stream of clean running water Wash for 15 minutes or more Do not use chemicals or drugs in the wash water; they may increase the extent of injury Inhaled poison Carry victim to fresh air immediately Open all doors and windows so no one else will be poisoned Loosen tight clothing Apply artificial respiration if breathing has stopped or if the victim’s skin is blue. If patient is in an enclosed area, do not enter without proper protective clothing and equipment. If proper protection is not available, call for emergency equipment from your fire department (if available) Poison in mouth or swallowed Rinse mouth with plenty of water Procedure for inducing vomiting Position victim face down or kneeling forward, Do not allow victim to lie on his back, because the vomit could enter the lungs and do additional damage Give victim large amounts (up to 1 quart) of milk or water to drink Induce vomiting only if instructions to do so are on the label Put finger or the blunt end of a spoon at the back of victim’s throat or give syrup of ipecac Collect some of the vomit for the physician if you do not know what the poison is Do not use salt solutions to induce vomiting When not to induce vomiting If the victim is unconscious or is having convulsions If the victim has swallowed a corrosive poison. A corrosive poison is a strong acid or alkali. It will burn the throat and mouth as severely coming up as it did going down. It may get into the lungs and burn there also If the victim has swallowed an emulsifiable concentrate or oil solution. Emulsifiable concentrates and oil solutions may cause severe damage to the lungs if inhaled during vomiting C.6 Pesticide storage Preventative measures are required in pesticide warehouses in order to reduce cases of pilferage, exposure through leakages, theft and expiration of pesticides. Where IPs or beneficiaries, including agro dealers, will be 2013 South Sudan PERSUAP | pg. 125 maintaining pesticide stores, trainng must address these practices, as per the best management practices for pesticide storage highlighted in FAO’s storage manual and summarized below: All primary pesticide storage facilities will be double-padlocked and guarded on a 24 hour basis All the storage facilities will be located away from water courses, domestic wells, markets, schools, hospitals etc. Wastewater from pesticide storage facilities must not be drained directly into public drains but should be pre treated on site. Soap and clean water will be available at all times in all the facilities A trained storekeeper will be hired to manage each facility Pesticides will be stacked as specified in the FAO Storage and Stock Control Manual. Inventory management will include recording expiration dates of all pesticides and maintaining a “first-in first-out” stocking system. All the warehouses will have at least two exit access routes in case of fire outbreak A non-water-based fire extinguisher will be available in the storage facilities, and all workers will be trained on how to use this device, and how to respond to fire. (see below) Warning notices will be placed outside of the store in the local language(s) with a skull and crossbones sign to caution against unauthorized entry Further, if IP-run pesticide stores exist in an area with fire or emergency services, local first responders must receive training on how to deal with pesticide fires. The smoke from such a fire is highly hazardous and effluent from water spray can do great harm to the environment. If fire fighters use water to put out a fire in a pesticide storage shed, the runoff will be highly toxic. C.7 Proper pesticide container disposal Once pesticides have been used, the empty containers need to be properly disposed of. Training must address proper disposal. This table gives a summary of the best practices for doing so. Proper methods to dispose of pesticides and their empty containers Container Type Disposal Statements Metal Containers (non-aerosol) Triple rinse. Then offer for recycling or reconditioning, or puncture and bury Paper and Plastic Bags Completely empty bag into application equipment. Then bury empty bag Glass Containers Triple rinse. Then bury. Plastic Containers Triple rinse. Then offer for recycling or reconditioning, or puncture and bury 2013 South Sudan PERSUAP | pg. 126
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