Kocide Opti
- Manufacturer
- DU PONT
- Category
- Fungicides
- Registered until
- 2025-06-29
- Registration number
- 63216
- Active materials
- copper300 g/kg
A fine dry flowable fungicide for the control of Downy mildew in Grapes as indicated in the Directions for use table
GENERAL INSTRUCTIONS
GROUP M1 FUNGICIDE
DuPont Kocide Opti is a protectant fungicide. Applications should begin prior to any sign of disease. Complete spray coverage is essential to assure optimum performance from Kocide Opti fungicide.
FUNGICIDE RESISTANCE WARNING
DuPont Kocide Opti is a member of the Inorganic group of fungicides. For resistance management the product is a Group M1 fungicide.
Some naturally occurring individual fungi resistant to Group M1 fungicides may exist through normal genetic variability in any fungal population. The resistant individuals can eventually dominate the fungal population if these fungicides are used repeatedly. These resistant fungi will not be controlled this product or other Group M1 fungicides, thus resulting in a reduction in efficacy and possible yield loss.
Since the occurrence of resistant fungi is difficult to detect prior to use, DuPont accepts no liability for any losses that may result from the failure of this product to control resistant fungi.
Mixing Instructions:
Fill the spray vat with good quality water. Remove top strainer from spray vat. With the agitation system operating, pour the required quantity of Kocide Opti into the spray vat in a steady stream. DO NOT attempt to pre-mix Kocide Opti in water
before adding to the spray vat. If other pesticides are being used, fully mix the Kocide Opti in the spray tank before adding other
products. Always add and mix the Kocide Opti™ first. Sprays containing Kocide Opti should be used within 3 hours of preparation and they should be agitated continuously during this period.
Application
Dilute Spraying
- Use a sprayer designed to apply high volumes of water up to the point of run-off and matched to the crop being sprayed.
- Set up and operate the sprayer to achieve even coverage throughout the crop canopy. Apply sufficient water to cover the crop to the point of run-off. Avoid excessive run-off.
- The required volume may be determined by applying different test volumes, using different settings on the sprayer, from industry guidelines or expert advice.
- Add the amount of product specified in the Directions for Use table for each 100 L of water. Spray to the point of run-off.
- The required dilute spray volume will change and the sprayer set up and operation may also need to be changed, as the crop grows.
- Always apply sufficient water to cover the crop to the point of run-off, otherwise underdosing will occur and disease control may be inadequate.
Concentrate Spraying
- Use a sprayer designed and set up for concentrate spraying (that is a sprayer which applies water volumes less than those required to reach the point of run off) and matched to the crop being sprayed.
- Set up and operate the sprayer to achieve even coverage throughout the crop canopy using your chosen water volume.
- Determine an appropriate dilute spray volume (See Dilute Spraying above) for the crop canopy. This is needed to calculate the concentrate mixing rate. The mixing rate for concentrate spraying can then be calculated in the following way:
Example Only
- Dilute spray as determined above: For example 1,500 L/ha
- Your chosen concentrate spray volume: For example 500 L/ha The concentration factor in this example is 3X (i.e 1,500 L ÷ 500 L = 3)
- If the dilute label rate is 150 g/100 L, then the concentrate rate becomes 3 x 150, that is 450 g/100 L of concentrate spray.
- The chosen spray volume, amount of product per 100 L of water, and the sprayer set up and operation may need to be changed as the crop grows.
- For further technical information on concentrate spraying, users are advised to consult relevant industry guidelines, undertake appropriate competency training, and follow Industry Best Practices.
Wetting Agents
The addition of a wetting agent is required when Kocide Opti is applied as a concentrate spray or by aircraft. Add a wetting agent at label rates when suitable for these purposes, irrespective of the spray volume applied.
Application by aircraft
Apply in a minimum of 20 L of water per hectare. May be applied with hydraulic nozzles or rotary atomisers operated to produce droplets with a V.M.D. of around 150 microns. Avoid application in calm or very windy conditions or when temperature and humidity cause rapid drying. To ensure good spray coverage, applications should ideally be made in a light crosswind.
Compatibility
DuPont Kocide Opti is compatible with most insecticides/ pyrethroids, dormant spraying oils, DuPont Manzate DF, ziram, wettable sulphur and urea. Mixtures with more than one of the above products are not recommended. Such mixtures may be ineffective or may cause serious damage. DuPont Kocide Opti may NOT be compatible with some foliar fertilisers and a test should be conducted before use. Always add Kocide Opti to the spray solution and dissolve before other products are added.
STORAGE AND DISPOSAL
Store in the closed, original container in a dry, cool, well-ventilated area out of direct sunlight.
Single rinse before disposal. Add rinsings to spray tank. DO NOT dispose of undiluted chemicals on site. Puncture and bury empty bags in a local authority landfill. If no landfill is available, bury the containers below 500 mm in a disposal pit specifically marked and set up for this purpose clear of waterways, desirable vegetation, and tree roots. Empty bags and product should not be burnt.
NOTICE TO BUYER
To the extent permitted by law all conditions and warranties and statutory or other rights of action which buyer or any other user may have against DuPont or Seller are hereby excluded. DuPont hereby gives notice to the buyer and other users that it will not accept responsibility for any indirect or consequential loss arising from reliance on product information or advice provided by DuPont or on its behalf unless it is established that the product has been used strictly as directed. DuPont’s liability shall in all circumstances be limited to replacement of the product or a refund of the purchase price paid therefore.
APMVA Approval Number: 63216/0709
DIRECTIONS FOR USE
RESTRAINTS:
DO NOT apply when temperatures exceed 35C. DO NOT apply when slow drying conditions prevail. DO NOT apply to copper-shy crops or cultivars.
DO NOT apply if it is likely to rain before the spray is dry.
DO NOT apply to wet crops.
DO NOT apply in spray solutions having a pH of less than of less than 6.5 as phytotoxicity may occur.
ALL STATES
All rates are for dilute spraying. For concentrate spraying rates, refer to the Mixing/Application section. If using concentrate application, apply the same total amount of product to the target crop.
GRAPES
Disease: Downy mildew (Plasmopara viticola)
Dilute spraying rate: 80 to 115 g/100L
Critical Comments: Apply when shoots are 10 cm long and repeat at 10 to 14 day intervals while weather conditions favour infection. Use the higher rate when conditions are highly favourable for infection.
Leaf damage may occur on ‘copper-shy’ varieties. Apply as a dilute or concentrate spray.
DO NOT use a concentration factor greater than 3X. For concentrate application use a minimum spray volume of 250 L per hectare.
NOT TO BE USED FOR ANY PURPOSE, OR IN ANY MANNER, CONTRARY TO THIS LABEL UNLESS AUTHORISED UNDER APPROPRIATE LEGISLATION.
WITHHOLDING PERIOD:
DO NOT HARVEST FOR 1 DAY AFTER APPLICATION.
The information set forth herein is furnished free of charge and is based on technical data that DuPont believes to be reliable. It is intended for use by persons having technical skill at their own discretion and risk. DuPont makes no warranties, expressed or implied, and assumes no liability in connection with any of this information. Nothing herein is to be taken as license to operate under or a recommendation to infringe on any patents.
Registered for cultures | Preharvest Interval |
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Grapes | 1 |