Grecale

Manufacturer
Oxon
Category
Fungicides
Registered until
2026-02-28
Registration number
17002
Active materials
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A suspension concentrate containing 200 g/l of Cymoxanil (16.7% w/v) and 300 g/l of Fluazinam (25% w/v).
A fungicide for the control of Phytophthora infestans on Potato.
 
DIRECTIONS FOR USE
IMPORTANT
This information is authorised as part of the Product Label. All instructions within this section must be read carefully in order to obtain safe and successful use of this product.
 
Diseases Controlled and Application Timing
GRECALE is recommended for the use as a fungicide in the field for post-emergence application (BBCH 21-89) to potato infested with Late blight (Phytophthora infestans).
 
Crop specific information
The product is used for the control of Late blight (Phytophthora infestans) in Potatoes. A minimum interval of 7 days between applications must be observed.
 
 
Dose
Intervals between applications of ‘Grecale’ should be reduced as blight risk increases so that protection of the crop can be maintained as follows:
a) N.B. Potato blight fungicides may not give complete protection when the disease risk is severe. However, disease development will be delayed with a well-timed spray programme.
b) Up to 6 applications of GRECALE per crop may be made.
c) Apply GRECALE in 240-600 litres of water per hectare. Apply as a MEDIUM quality spray as defined in the BCPC system.
d) Apply at the recommended water volumes, appropriate for the density of the crop, ensuring good coverage of the foliage.
 
TIMING
GRECALE should be used from the beginning of May onwards.
GRECALE should be applied as part of a repeat spray programme at 7-10 day intervals.
GRECALE must be used preventatively starting applications as soon as there is a risk of blight infection, or an official blight warning has been issued.
In the absence of any warnings applications should start as soon as crops meet within the rows.
A maximum of 6 applications may be applied to the crop. Protect from frost.
 
FOLLOWING CROPS
There are no restrictions on following crops.
 
MIXING AND SPRAYING
Shake well before use. Half fill the spray tank with clean water and add the required quantity of GRECALE while maintaining constant agitation. Add the remaining water and continue agitation during spray application. Wash out all spray equipment with water immediately after use.
 
FUNGICIDE RESISTANCE
GRECALE contains a mixture of cymoxanil (a cyanoacetamide-oxime fungicide) and fluazinam (a 2,6-dinito-Aniline fungicide. To reduce risk of resistance developing the product should be used as a part of a spray programme of treatments using fungicides with different modes of action. For further advice on resistance management for potato blight (Phytophthora infestans) contact your agronomist or specialist advisor and/or visit the FRAG-UK and Potato Council websites.
 
 
 
 
Registered for culturesRatePreharvest Interval
Potatoes0.5 - 0.6 l7