CorzalPlant Protection Product ComparisonPlant Protection Product ComparisonReport inaccuraciesReport inaccuracies

CORZAL is a post-emergence herbicide for the control of annual broad-leaved weeds in sugar beet, fodder beet, red beet and mangels.
Suspo-emulsion (SE) containing 157 g/l (15.2 % w/w) phenmedipham.

DIRECTIONS FOR USE
IMPORTANT: This information is approved 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.

CORZAL is a post-emergence herbicide for the control of annual broad-leaved weeds in sugar beet, fodder beet, red beet and mangels. It is a contact herbicide which is absorbed through the leaves of weeds with translocation primarily in the apoplast. It is recommended to use the product in combination with other herbicides, approved for this purpose.

For best results ensure an even spray coverage when weeds are actively growing and at a young growth stage i.e. the cotyledon stage. In general at this time the crop is in a similar growth stage. If necessary the application can be repeated when new weeds appear.

A minimum interval of 7 days must elapse between successive applications.

RESTRICTIONS
CORZAL should not be applied on crops under stress e.g. from the use of other pesticides, wind damage, lime deficiency, nutrient deficiencies, insect or fungal attacks, etc., as this may cause irreversible damage to the crop.
Do not apply if temperature is likely to rise above 21°C on the day of spraying and avoid spraying in full sunlight. In these cases, delay the application until the evening
Do not apply immediately after a frost, or if frost is expected.
Care should be taken when using herbicide sequences, particularly on light soils and in wet seasons
Do not roll or harrow the crop for 7 days before or after application.
Do not apply when rain is imminent, to wet foliage or during rainfall or drizzle
All varieties of sugar beet, fodder beet, red beet and mangels can be sprayed providing the crop is not under stress at the time of application.
The crops should not be sprayed before the fully developed cotyledon stage.
Effects on processing of red beet have not been fully tested. Consult processor before use.

WEEDS CONTROLLED
Control of weeds by CORZAL alone is limited. Improved weed control can be achieved by mixing with other herbicides based on ethofumesate and/or metamitron. See ‘Compatibility section’ for further information about the possible mixing partners of CORZAL
Correctly timed applications of CORZAL to young weeds in a repeat spray programme in combination with other herbicides will control the weeds below. The level of control is dependent on the correct dose and timing.

CROP SPECIFIC INFORMATION
Do not use more than 6 litres CORZAL per ha per crop (growth season). The weed control for the repeated spray programme should be started when weeds are in the cotyledon stage. In general, at this timing the crop is germinating as well. An interval of minimum 7 days between the applications is recommended. Dose: 2 litres/ha CORZAL.
Timing: Apply when weeds are in cotyledon stage. If necessary repeat this application when new weeds appear

RESISTANCE WARNING
Phenmedipham is in the chemical family of Phenylcarbamates which inhibit photosynthesis at photosystem II. Products which have this mode of action should be applied limitedly. Furthermore, a strategy for preventing and managing such resistance should be adopted. Guidelines have been produced by the Weed Resistance Action Group and copies are available from the HGCA, CPA, your distributor, crop adviser or product manufacturer

MIXING AND SPRAYING
Apply as an overall post-emergence spray in 80-200 litres water per hectare as a MEDIUM quality spray (BCPC classification).
Check and clean all hoses, nozzles and equipment to be used prior to use. Half fill the sprayer tank with clean water and begin agitation. Add the required quantity of the mixing partner, followed by the required quantity of CORZAL. Fill the spray tank with water as required whilst agitating. Continue agitation until the spraying operation is complete.
After application, all equipment should be flushed with a dilute detergent solution and thoroughly rinsed with clean water at least 3 times. Care should be taken not to rinse contaminated washings from application equipment into waste water channels. Contaminated cleaning liquids should be disposed of safely according to local regulations.
Do not spray where the crop is under stress. When spraying take care to avoid drift onto neighbouring crops, buildings or non-target plants.

COMPATIBILITY
The control of weeds can be improved by mixing CORZAL with other approved herbicides. It is recommended to use these tank mixtures as part of a repeated spray programme.