The suitable period for the control of cotton aphid is in the middle and early June. The prevention and control indexes were as follows: the leaf rolling rate before the 3 leaf stage reached 10%, and the leaf rolling rate after the 3 leaf stage reached 15-20%.
The control of cotton aphid can be used 3% acetamiprid 1000-2000 times liquid or 5% hit 2500-4000 times liquid spray. It is also possible to use 10% Sapokay 30-50 ml per mu, dilute 2000 times or 10% 10% imidacloprid, and spray 50-60 kg water.
Farmers should pay attention to the protection of natural enemies while preventing and controlling locusts. If the ratio of scoops to grasshoppers in the field is less than 1:200 during this period, it is generally unnecessary to use special pesticides to control locusts. Infestation can be controlled within a week or so.
The cotton disease can be controlled by 50% carbendazim WP 500 times solution, or 75% thiophanate-methyl wettable powder 800-1000 times, 70% mancozeb 1000 times liquid spray. Spray every 7 days and spray 2-3 times.
In addition, we should strengthen the cultivation and management, pay attention to the timely cultivation of loose soil after the rain, when the time between the seedlings to remove diseased seedlings.
The control of cotton aphid can be used 3% acetamiprid 1000-2000 times liquid or 5% hit 2500-4000 times liquid spray. It is also possible to use 10% Sapokay 30-50 ml per mu, dilute 2000 times or 10% 10% imidacloprid, and spray 50-60 kg water.
Farmers should pay attention to the protection of natural enemies while preventing and controlling locusts. If the ratio of scoops to grasshoppers in the field is less than 1:200 during this period, it is generally unnecessary to use special pesticides to control locusts. Infestation can be controlled within a week or so.
The cotton disease can be controlled by 50% carbendazim WP 500 times solution, or 75% thiophanate-methyl wettable powder 800-1000 times, 70% mancozeb 1000 times liquid spray. Spray every 7 days and spray 2-3 times.
In addition, we should strengthen the cultivation and management, pay attention to the timely cultivation of loose soil after the rain, when the time between the seedlings to remove diseased seedlings.
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