It's time to control cotton aphids, and careful and repeated prevention is key
Due to the recent low rainfall and high temperatures, the cotton aphid population has surged, with numbers significantly higher than the same period last year. If the high temperatures and low rainfall continue, the cotton aphid population will increase further, leading to a major outbreak of summer aphids, and if control is not timely, cotton yields will be affected. Therefore, farmers should carry out timely control, ensuring careful and repeated prevention.
1. Chemical control. (1) Spray with 3% acetamiprid or 10% imidacloprid emulsifiable concentrate at 1000-1500 times dilution; (2) Spray with 2.5% Zhongbao Yawuzong emulsifiable concentrate at 1000-1500 times dilution; (3) Spray with 30% duya emulsifiable concentrate at 10,000-15,000 times dilution.
2. Precautions. (1) Cotton fields should be treated with pesticide across the board once; in areas with severe aphid outbreaks, increase the dosage and apply again after 3-4 days. When applying, make sure the spray reaches the undersides of the leaves so the pesticide can take full effect. (2) Do not mix mepiquat chloride when controlling aphids, because plants with severe aphid infestations are often smaller, so more pesticide is sprayed and the amount of mepiquat chloride is greater, which further inhibits plant growth.