First, pest control
Select disease-resistant varieties and do a good job in seed treatment. For example, cucumbers should be selected from Zhongnong No.8, Zhongnong No.4 and Zhongnong No.7 in the spring, and Zhongnong No.8 Jinyou and Jinchun Guagua should be used in autumn. Before sowing, soak seeds with 55 ° C constant temperature water for 10-15 minutes; also use 0.3 thiram, 1% formalin or 1% diclosan for 10-15 minutes, rinse with water and sow.
Rational use of fertilizers to improve disease resistance. Do the fat foot, chase the fertilizer, and pay attention to the application of phosphorus, potassium fertilizer, do not apply unfertilized fertilizer. In combination with the prevention and control of pests and diseases, spraying 0.2%-0.3% potassium dihydrogen phosphate on the leaf surface of vegetable such as solanaceous fruits, melons and beans can improve the disease resistance of crops.
Use chemical control. The use of microbial pesticides, microbial pesticides suitable for vegetables are: BT emulsion, 8010, Olympus 1 and so on. Use as much pesticide as possible, such as ban, onion, ramie, Litsea cubeba, fish vine, oleander, and ramie. Rational use of chemical pesticides, vegetables are strictly prohibited to use highly toxic and highly residual pesticides, such as 1605, 1059, 3911, carbofuran, methamidophos, insecticide, toxaphene, Xi Lisheng, Sai Li San and so on. The following pesticides (recommended for the Ministry of Agriculture) are safer on vegetables: 25% insecticidal double, 90% crystalline trichlorfon, 40% dimethoate, 80% dichlorvos, 50% phoxim, 50% acetophenone Phosphorus, 73% gramcapone, 25% marathon, 20% chlorpyrifos, 20% cypermethrin, 25% deltamethrin, 25% chlorpyrifos, 50% chlorosis, 65% dixon, 70% Chlorothalonil, 25% leaf extract, Bole multi-liquid and so on. To strictly control the number, concentration and dosage of chemical pesticides on vegetables, it is necessary to ensure a safe interval between pesticides.
Select disease-resistant varieties and do a good job in seed treatment. For example, cucumbers should be selected from Zhongnong No.8, Zhongnong No.4 and Zhongnong No.7 in the spring, and Zhongnong No.8 Jinyou and Jinchun Guagua should be used in autumn. Before sowing, soak seeds with 55 ° C constant temperature water for 10-15 minutes; also use 0.3 thiram, 1% formalin or 1% diclosan for 10-15 minutes, rinse with water and sow.
Rational use of fertilizers to improve disease resistance. Do the fat foot, chase the fertilizer, and pay attention to the application of phosphorus, potassium fertilizer, do not apply unfertilized fertilizer. In combination with the prevention and control of pests and diseases, spraying 0.2%-0.3% potassium dihydrogen phosphate on the leaf surface of vegetable such as solanaceous fruits, melons and beans can improve the disease resistance of crops.
Use chemical control. The use of microbial pesticides, microbial pesticides suitable for vegetables are: BT emulsion, 8010, Olympus 1 and so on. Use as much pesticide as possible, such as ban, onion, ramie, Litsea cubeba, fish vine, oleander, and ramie. Rational use of chemical pesticides, vegetables are strictly prohibited to use highly toxic and highly residual pesticides, such as 1605, 1059, 3911, carbofuran, methamidophos, insecticide, toxaphene, Xi Lisheng, Sai Li San and so on. The following pesticides (recommended for the Ministry of Agriculture) are safer on vegetables: 25% insecticidal double, 90% crystalline trichlorfon, 40% dimethoate, 80% dichlorvos, 50% phoxim, 50% acetophenone Phosphorus, 73% gramcapone, 25% marathon, 20% chlorpyrifos, 20% cypermethrin, 25% deltamethrin, 25% chlorpyrifos, 50% chlorosis, 65% dixon, 70% Chlorothalonil, 25% leaf extract, Bole multi-liquid and so on. To strictly control the number, concentration and dosage of chemical pesticides on vegetables, it is necessary to ensure a safe interval between pesticides.
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