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Characteristic Symptoms:
 
Leaf tissue exposed to herbicide drift turns white/very pale yellow or bleached.
   
Leaves become distorted or twisted.
   
Herbicide injury often occurs in a distinct pattern within the field.
   
Management and Control:
 
Avoid spraying during windy days.
   
Apply herbicide with a coarse spray ( large drops) or use sprayer with wide angle nozzle.
   
Use separate sprayer for herbicide and pesticide or clean thoroughly the sprayer before usage.
   
References:
Compendium of Onion and Garlic Diseases and Pest (2nd Edition)
   

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