First, the cotton disease. Available 25% toxic WP WP 800~1000 times solution, 75% chlorothalonil WP 600 times solution, 70% mancozeb WP 500 times solution, 12.5% ​​禾果利 1500~2000 times solution Spray once every 7~10 days, even spray 2~3 times, pay attention to alternate use, do not ignore the base of the stem when spraying.
Second, withered verticillium. In the early stage of the disease, 50% carbendazim WP 500 times solution or 50% thiophanate-methyl WP 500 times solution or 30% DT bactericide 350 times solution should be used in time for 0.25 kg per plant. It can be filled once every 7~10 days, and it can be irrigated 2~3 times.
Third, powdery mildew. The leaves are covered with white powder, which causes the leaves to lose green and yellow, causing premature aging of the plants. When there is white powder on the leaves, spray the powder rusting aqueous solution or the sulfur suspension aqueous solution every 7~10 days for spraying, and spray continuously for 2~3 times.
Fourth, the virus disease. Spray with vitamin A 120 times solution, 2 times in seedling stage, 1 time after transplanting, can prevent viral diseases. Please refer to the instruction manual for the specific usage and dosage of the drug.
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