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KRESO 50 WG
Reg. No.: L 8266 Act /Wet No. 36 of/van 1947
A water dispersible granular contact and
translaminar fungicide for the control of
certain fungal diseases on apples, citrus,
cucurbits, grapes, mangoes, pears and
roses.
FRAC FUNGICIDE GROUP CODE:
‘n Waterdispergeerbare korrel kontak- en
translaminêre swamdoder vir die beheer van
sekere swamsiektes op appels, druiwe,
mango’s pampoengewasse, pere, sitrus en
rose.
11
FRAC SWAMDODERGROEP KODE:
ACTIVE INGREDIENT/AKTIEWE BESTANDDEEL:
Kresoxim-methyl (strobilurin) / kresoksiem-metiel (strobilurien) ……………………. 500 g/kg
Registration holder / Registrasiehouer:
ARYSTA LifeScience South Africa (Pty) Ltd
Co. Reg. No./Mpy. Reg. Nr.: 2009/019713/07
7 Sunbury Office Park,
Off Douglas Saunders Drive, La Lucia Ridge,
South Africa, 4019
Tel: 031 514 5600
Contents/Inhoud
kg
Batch No. / Lot Nr.:
Date of manufacture: / Datum van vervaardiging:
U.N. No. 3077
READ THE LABEL IN DETAIL BEFORE OPENING THE CONTAINER. / LEES DIE ETIKET
VOLLEDIG VOORDAT DIE HOUER OOPGEMAAK WORD.
For full particulars, see enclosed leaflet. / Vir volledige besonderhede, sien ingeslote pamflet.
KRESO 50 WG/02/03/2011.1
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KRESO 50 WG
Reg. No.: L8266 Act/Wet No. 36 of/van 1947
A water dispersible granular contact and translaminar
fungicide for the control of certain fungal diseases on apples,
citrus, cucurbits, grapes, mangoes, pears and roses.
‘n Waterdispergeerbare korrel kontak- en translaminêre
swamdoder vir die beheer van sekere swamsiektes op appels,
druiwe, mango’s pampoengewasse, pere, sitrus en rose.
FRAC FUNGICIDE GROUP CODE / FRAC SWAMDODERGROEP KODE: 11
ACTIVE INGREDIENT / AKTIEWE BESTANDDEEL:
Kresoxim-methyl (strobilurin) / kresoksiem-metiel (strobilurien)
……………………. 500 g/kg
Registration holder / Registrasiehouer:
ARYSTA LifeScience South Africa (Pty) Ltd
Co. Reg. No./Mpy. Reg. Nr.: 2009/019713/07
7 Sunbury Office Park,
Off Douglas Saunders Drive, La Lucia Ridge, South Africa, 4019
Tel: 031 514 5600
CAUTION / VERSIGTIG
WARNINGS:
Withholding periods: Allow the following minimum number of days between application and
harvesting, baleing or grazing:
Apples & Pears:
45 days
Citrus:
56 days
Cucurbits:
4 days
Mangoes:
48 days
Table & Wine Grapes:
14 days
The recommended withholding period between last application and harvest meets the local
residue requirements but may not meet export requirements.
• Handle with care.
• Harmful to animals.
• Keep out of reach of children, uninformed persons and animals.
• Store in a cool, dry place away from food and feed.
• Do not apply KRESO 50 WG to lemon trees or old neglected citrus trees.
Although this remedy has been extensively tested under a large variety of conditions the registration
holder does not warrant that it will be efficacious under all conditions because the action and effect thereof
may be affected by factors such as abnormal soil, growth medium, climatic and storage conditions, quality
of dilution water, incompatibility with other substances not indicated on the label and the occurrence of
resistance of disease against the remedy concerned as well as by the method time and accuracy of
application. The registration holder, furthermore does not accept responsibility for damage to crops,
vegetation, the environment or harm to man or animal or for lack of performance of the remedy concerned
due to failure of the user to follow the label instructions or to the occurrence of conditions which could not
have been foreseen in terms of the registration. Consult the supplier in the event of any uncertainty.
PRECAUTIONS:
• Avoid prolonged contact with skin and protect eyes.
• Do not inhale spray mist or dust.
• When handling the concentrated product wear gloves, boots and face shield.
• Wash with soap and water after handling of product.
• Do not eat, drink or smoke whilst mixing and applying or before washing hands and face.
• Prevent spray drift onto other crops, grazing, rivers and dams.
• Destroy empty containers and never use for any other purpose.
• Prevent contamination of food, feed, drinking water and eating utensils.
• Clean applicator after use by rinsing thoroughly with clean water. Prevent wash water
contaminating other areas.
RESISTANCE WARNING:
For resistance management, KRESO 50 WG is a group code 11 fungicide. Any fungus
population may contain individuals naturally resistant to KRESO 50 WG and other group code
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11 fungicide. The resistant individuals can eventually dominate the fungus population if these
fungicides are used repeatedly. These resistant fungi may not be controlled by KRESO 50 WG
or any other group code 11 fungicide.
To delay fungicide resistance:
• Avoid exclusive repeated use of fungicide from the same fungicide group code. Alternate
or tank mix with products form different fungicide group codes.
• For tank mixing or alternation with products in fungicide group code M, refer to applicable
individual product labels.
• Integrate other control methods (chemical, cultural, biological) into disease control
programmes.
For specific information on resistance management contact the registration holder of this
product.
DIRECTIONS FOR USE:
Use only as directed.
Compatibility:
• KRESO 50 WG is compatible with CungFu 538 SC (copper hydroxide 538 g/ℓ, Reg. no.:
L7526, Act 36 of 1947), COPRO FLOW S (basic copper sulphate 320 g/ℓ, Reg. no.: L 8118,
Act 36 of 1947) and most commonly used modern insecticides.
Mixing Instructions:
• Pre-mix the required amount of copper in at least 10 litres of water and add it to the spray
tank, half filled with clean water.
• Thereafter, measure the required volume of KRESO 50 WG, pre-mix in at least 10 litres of
water before also adding to the spray tank.
• For citrus only, finally add the mineral oil (e.g. HYPER MEDIUM OIL, Reg. no. L 7355, Act 36
of 1947), to the mixture.
• Fill the spray tank with water to the final volume required, while maintaining agitation to
ensure thorough mixing of the spray mixture before spraying commences.
• Maintain agitation while spraying.
• Prepared spray mixture must not be left in the spray tank for any length of time, e.g.
overnight.
Rain-fastness:
• KRESO 50 WG is not easily washed off by rain after it has dried on the crop.
• Rainfall up to 20 mm, one day after application, will normally not negatively affect the
fungicidal activity of the product.
Application:
• With the introduction of strobilurin fungicides, such as KRESO 50 WG, a new application
concept, the “block” concept, is proposed.
• On this label, reference to a “block” means a series of 2 to 3 consecutive treatments with a
strobilurin fungicide.
• In order to optimize the fungicidal activity of the product, it is very important to apply
KRESO 50 WG according to the anti-resistance strategy rules as given below.
General Anti-resistance Strategy Rules:
• Apply KRESO 50 WG in principle on a preventive basis.
• The total number of KRESO 50 WG and other strobilurin applications should (except in the
case of citrus) not constitute more than 40 % of the total number of fungicide applications
made to the crop in one season.
• Use other registered fungicides, with a mode of action that differs from strobilurins, for the
remainder of the spray programme.
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• The last fungicide application of the season should (except in the case of citrus) not be
carried out with a strobilurin fungicide.
APPLES AND PEARS:
• KRESO 50 WG can be applied on a preventive (powdery mildew and scab) and a curative
(scab) basis.
• Start KRESO 50 WG applications as early in the season as possible.
• Apply KRESO 50 WG in a “block” of 2 to 3 consecutive treatments.
• Within a “block”, KRESO 50 WG can be applied preventively or curatively as dictated by the
occurrence of infection periods.
• Increase the dosage rate as recommended for curative treatments only after infection periods
(within 2 days after the onset of the infection period).
• Do not apply more than 3 sprays with KRESO 50 WG or any other strobilurin per season.
High Volume Applications:
The water volume to be applied per hectare should be calculated according to the Tree-RowVolume (TRV) formula described by Unrath (Deciduous Fruit Grower No. 1986):
Litre/ha= Tree height x Tree depth x 937
Row Width
The above formula indicates the required volume of water for high volume (HV) applications
when the trees are in full leaf. Based on the above formula the following water volumes are
recommended for the various growth stages:
Growth Stage:
% HV water requirement/ha:
Greentip – 30% of full blossom:
60 %
Full blossom – middle November:
80 %
From beginning December:
100 %
Low Volume Applications:
When low volume sprays are applied the dosage rate of KRESO 50 WG per 100 litres water
must be increased in order to maintain the same amount of fungicide applied per hectare as in
the case of a high volume application. Use above formula and growth stage table to calculate
the required amount of KRESO 50 WG per hectare.
CITRUS (EXCLUDING LEMONS):
In order to optimize the fungicidal activity of the product and ensure sustainable use of
strobilurins, it is very important to apply KRESO 50 WG in a programme with basic copper
sulphate or copper hydroxide according to a resistance management programme. To maintain
a high level of control, correct timing of applications is critically important.
• Apply KRESO 50 WG as part of a programme. The first application being copper, starting at
fruit set (100 % petal drop), at the registered rate, followed by two KRESO 50 WG
applications, as recommended in the table below. A final spray of at least one copper
application, as recommended, must complete the spray programme.
• Do not apply KRESO 50 WG to lemons or old, neglected citrus trees, as they are extremely
prone to fungicidal resistance.
• KRESO 50 WG should always be applied as a preventive treatment with limited curative
abilities (maximum 3 days).
• Refer to the respective copper and light narrow mineral oil labels for directions regarding their
applications.
• Apply as a medium or full cover spray.
GRAPES:
• Start KRESO 50 WG applications as early in the season as possible.
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• Apply preventively before an infection period occurs.
• In a spray programme, apply KRESO 50 WG in a “block” of maximum 3 applications
containing FRAC fungicide group code 11 fungicides, per season.
• Alternate with products in the spray programme with products from different group codes.
Table grapes:
KRESO 50 WG may be applied as a high or a low volume application. The dosage rate per 100
litres as recommended in the “Application Table” below, is meant for a high volume application.
In case of low volume applications the dosage rate per 100 litres should be increased in order to
apply the same amount of product per hectare as in the case of the high volume application.
Wine grapes:
KRESO 50 WG may be applied as indicated for table grapes. It is also possible to lengthen the
spray intervals while spraying at increased rates as indicated in the “Application Table”.
High Volume Applications for Table and Wine Grapes:
Spray to the point of run-off ensuring even coverage.
depending on the leaf area present:
Growth Stage
Apply the following water volumes
Water volume in ℓ/ha
Shoots 2 to 5cm long up to before blossom:
350 – 500 ℓ/ha
Blossom to pea-size of the berries:
500 –1000 ℓ/ha
Berries at pea-size up to harvest:
1000 – 1500 ℓ/ha
Low Volume Applications:
• The amount of product needed per hectare should be calculated from the corresponding high
volume application.
• The concentration of the spray mixture should not exceed four times (4x) the concentration
as recommended for the high volume application.
• Apply in at least 250 litres water per hectare.
• Ensure even coverage.
ROSES:
• KRESO 50 WG must be applied on a preventive basis.
• Start KRESO 50 WG applications as early in the season as possible.
• Apply KRESO 50 WG in up to two “blocks” of 2 to 3 consecutive sprays each.
• Do not apply more than 3 consecutive sprays with KRESO 50 WG or any other strobilurin per
“block”.
• Separate the first and second KRESO 50 WG “blocks” by spraying at least twice with
registered fungicides with modes of action which differ from the mode of action of strobilurins,
e.g. REPUTE (Reg. no. L 6824, Act 36 of 1947).
• Do not apply more than 6 applications with KRESO 50 WG or any other strobilurin per
season.
• Apply KRESO 50 WG as a medium to high volume application in 750 to 1500 litres water per
hectare.
• Ensure even coverage of the crop.
GENERAL:
• KRESO 50 WG is characterized by a special mode of transport and uptake action with long
lasting effect and translaminar activity.
• KRESO 50 WG can also be sprayed once infection has occurred in the case of scab on
apples and pears (up to 72 hours after the onset of infection).
• KRESO 50 WG is not harmful to bees.
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APPLICATION TABLE:
CROP & DISEASE
DOSAGE RATE:
DIRECTIONS FOR USE:
6,5 g/100 ℓ water
Preventive:
Start spraying from the green tip stage until 75 % petal fall
at 7 to 10 day intervals. Choose the shorter interval in
cases with high infection pressure and favourable weather
and growth conditions, and the longer interval when
conditions are less favourable for disease development.
Spray with 14 day intervals from 75 % petal fall. Do not
apply KRESO 50 WG later than the end of December. It is
recommended to spray other products, e.g. SYLLIT
(Reg.no. L 7423, Act 36 of 1947) after December to prevent
residues at harvest time. Apply as a high volume spray.
APPLES & PEARS
Scab
(Venturia spp)
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CROP & DISEASE
DOSAGE RATE:
10 g/100 ℓ
water
APPLES
Powdery mildew
(Podosphaera
leucotricha)
CUCURBITS
Powdery mildew
(Sphaerotheca
fuliginea)
ROSES
Powdery mildew
(Sphaerotheca
pannosa)
CITRUS
Black spot
(Guignardia
citricarpa)
Do not use on
lemons.
GRAPES
Powdery mildew
(Oidium tuckeri)
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6,5 g/100 ℓ
water
200 g/ha
20 g/100 ℓ water
(150 – 300 g/ha)
150 mℓ copper
hydroxide
or
250 mℓ basic
copper
sulphate/100 ℓ
water
20 g KRESO 50
WG
+ 150 mℓ copper
hydroxide
or
250 mℓ basic
copper sulphate
+ 0,5 ℓ light mineral
oil/100 ℓ water
150 mℓ copper
hydroxide
or
250 mℓ basic
copper
sulphate/100 ℓ
water
DIRECTIONS FOR USE:
Curative:
Use KRESO 50 WG (only after the occurrence of infection
periods) in addition to a preventive program with other
registered products. Apply within 2 days after infection has
occurred (maximum 72 hours) as a high volume spray.
Commence applications at the pink stage and apply in a
preventive program at 7 to 14 day intervals.
Applications as recommended for scab control. Will also
control powdery mildew.
Commence applications at the onset of the disease (less
than 1% infection). Apply in a preventive program at 14 day
intervals in at least 500 litres water per hectare.
Ensure good coverage of all plant parts.
Do not apply more than ⅓ of the total number of
applications per season with KRESO 50 WG or any other
Group Code 11 fungicides (see “RESISTANCE WARNING”
above).
Apply as full cover spray with the first appearance of mildew
symptoms and repeat at 7 to 10 day intervals. Use the
shorter intervals in cases where climatic conditions are
favourable for development of powdery mildew. Do not
apply more than three consecutive treatments within one
‘block’. Alternate treatments in ‘blocks’ with at least two
applications of alternative registered products, e.g.
REPUTE. Refer to “Applications” above for explanation of
the “block” concept.
First application of programme:
Refer to comments under “CITRUS” above. Apply one
copper application at fruit set (100 % petal drop). Refer to
the relevant copper label for further details.
Second and Third application of programme:
Apply KRESO 50 WG 21 to 24 days after the first copper
application, as a preventive treatment.
Ensure good
coverage of all fruit with a medium to full cover spray.
Apply a second KRESO 50 WG application 6 weeks later.
Final application of programme:
Apply copper 6 weeks after the second KRESO 50 WG
application.
Repeat the copper spray 21 to 24 days later if an infection
period occurs in February.
Apply as a medium or full cover spray.
Commence spraying when shoots are about 2,5 cm long.
High volume application:
Apply 350 to 1500 litres spray mixture per hectare
depending on the leaf area present.
Low volume application:
Apply at least 250 litres spray mixture per hectare and
increase the KRESO 50 WG concentration as indicated
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CROP & DISEASE
Table & Wine
Grapes
Wine Grapes
MANGOES
Powdery mildew
(Oidium mangiferae
DOSAGE RATE:
DIRECTIONS FOR USE:
under “Applications”.
Additional products:
Sulphur should be used at least three times in the normal
spray programme.
Repeat at 10 to 14 day intervals. Use the higher dosage
rate in case of longer intervals or when conditions are
highly favourable for disease development.
10 – 15 g/100 ℓ
water
(35 – 225 g/ha)
22,5 g/100 ℓ water
Repeat at 18 to 21 day intervals.
(79 - 337,5 g/ha)
Commence application at 20 to 50 % flowering. Repeat
applications at 2 to 3 week intervals until 100% petal fall.
Do not apply more than three KRESO 50 WG applications,
or any other Group Code 11 fungicide per season.
20 g/100 ℓ water
The last fungicide application in a season should not be of
the Group Code 11 fungicides (see “RESISTANCE
WARNING” above).
Apply as a full cover spray, directed at the inflorescence.
ACKNOWLEDGMENT OF TRADE NAMES:
CungFu 538 SC:
L7526, Act 36 of 1947, Registration holder: Gouws and Scheepers (Pty) Ltd, t/a
Plaaskem, contains copper hydroxide 538 g/ℓ (copper equivalent 350 g/ℓ).
COPRO FLOW S: L8118, Act 36 of 1947, Registration holder: Arysta Lifescience South Africa (Pty)
Ltd, contains basic copper sulphate 320 g/ℓ (metallic copper equivalent 180 g/ℓ).
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