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Bernadette from Miller, Sd writes

Why is the mixed solution of GrazonNext HL Herbicide with water become a milky thick consistency that plugs the screen on the spray tank?


It is common for the mixed solution to turn milky when using herbicides such as GrazonNext HL Herbicide however it should not be plugging the screen in the sprayer. GrazonNext HL has a shelf life of 2-3 years when stored in a cool dry environment and not exposed to extreme heat or freezing temperatures. Be sure you are mixing at the correct rate per the product label

It is recommended to triple rinse your sprayer after each use with plain water to prevent any corrosion, buildup or settlements in the equipment. If you've had your sprayer for some time, it could be a new screen is needed from buildup of other pesticides. 

Dow Agro Sciences can be reached at 317-337-3000 for more information. 

Answer last updated on: 07/08/2021

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GrazonNext HL Herbicide

GrazonNext HL Herbicide

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