Answer: It is recommended to spray with acetochlor or 2 A 4 chlorine herbicide according to the instructions for use.

Control cornfield broad-leaved weeds and Cyperaceae weeds, can be used in the corn 3 to 6 leaf period per acre with 56% 2 A 4 sodium chloride soluble powder 75 to 100 grams, add water 40 to 50 kg spray. Maize seedling stage and after jointing are more sensitive to 2A and 4Chlorine, and it is easy to produce phytotoxicity after spraying. It is best to apply pesticide at the 5-6 leaf stage of corn, and pay attention not to increase the dosage at random so as to avoid causing phytotoxicity.

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