Pollution-free and low-volume application of autumn crops
July and August are in the high temperature season, and it is also the period of pests and mites in autumn crops. The pollution-free and low-capacity prevention and control technology is the most effective measure for fast, efficient, cost-effective and safe control of autumn crop pests. Compared with the conventional spray control method, the technology can improve the work efficiency by 5 to 10 times, improve the control effect by 10% to 20%, and save the pesticide cost by 20% to 30%, which can greatly reduce the labor intensity and avoid poisoning accidents. And it is conducive to the development of pollution-free production. The Chinese pesticide network Xiaobian introduces the pollution-free and low-volume application techniques for the common pests of autumn crops as follows:
I. Control objects and applicable pharmaceuticals 1. Soybeans, mung beans, sesame seeds, peanut aphids. Use 10% Dagong WP, or 10% Hydrating Moisturizing Powder, or 5% Iron Palm WP 10-15g per acre. The above-mentioned agents have a control effect of more than 95% for 48 hours, and the efficacy period is 10 to 15 days.
2. Soybeans, mung beans, peanuts, sweet potato red spiders. Apply 10 ml of 1.8% avermectin EC per acre, or spray 12 ml of 2.45% Shengzhifeng Insecticide 1# Emulsion. The above-mentioned drugs have a protective effect of more than 95% for 48 hours, and the efficacy period is 10 to 15 days.
3. Cotton Fuxi. Use 10% Dagong WP, or 10% WP, or 5% Essence WP 20g, or 2.45% Shengzhifeng 1# Emulsion 15ml per acre. The above pesticides have a protective effect of more than 95% for 48 hours, and the efficacy period is 15 to 20 days.
4. Cotton leafhopper (red spider). Use 15% avermectin EC 15~20 ml per acre, or 2.45% Shengzhifeng insecticide 1# emulsifiable oil 15~20 ml. The above two agents have a 48-hour control effect of more than 95%.
5. Soybean bean hawk moth, sweet potato stag beetle, Spodoptera litura, silver beetle, sweet potato moth, cotton worm, cabbage caterpillar, diamondback moth and other leaf-feeding pests. Use 2.45% of Shengfeng Pesticide 1# Emulsion 15ml per acre, or 5% beta-cypermethrin 50ml, or 2.5% deltamethrin (enemy kill) 20ml, or 5% of Fuling 30ml, or Sprayed 200 ml of Bt emulsion containing more than 100 million bacteria per gram. The above-mentioned drugs have a 24-hour control effect of more than 95%.
Second, the application method mist spray machine spray, the amount of water per acre is 5 ~ 7.5 kg. When the application is applied, the switch is turned off by 30 degrees (the flow rate of the chemical solution can be reduced by 1/3), and the spray head is 0.4 to 0.5 meters higher than the crop, so that the medicine mist is evenly dropped on the crop. When spraying, the spray width reaches 4~5 meters, the walking speed is 60~80 meters per minute, and the spraying time per acre is 5~7 minutes. Applying with a general sprayer, the amount of liquid sprayed is 7.5~10 kg. It should be replaced with a fine hole spray with a hole diameter of 0.7~1 mm. The spray head is 0.5~1 m higher than the crop, the spray width is 1~1.3 m, the walking speed is 30~40 m per minute, and the prevention and treatment of each mu of land takes 25~30 minutes.
The pesticide network recommends the use of pollution-free and low-capacity control technology, which not only saves costs, but also is efficient and fast.
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