Diquat 200 Active Ingredient 200 g/L DIQUAT as the dibromide salt in the form of a soluble concentrate. Description For use as a desiccant to control a wide range of broadleaf weeds in Barley, Green Beans, Lucerne, Peas, Red Clover, Wheat and White Clover and haulm destruction in Potatoes. Pack Sizes 20L Downloads