1, poison soil. Apply 50% methamidophos or phoxim EC 50-60ml/mu, mix it and spray it into the field. The insecticidal effect is over 90%; use 20% methylisotriphosin cream 20ml/mu and 50kg sand/mu. 2.5 kilograms of water was thrown into the field after mixing and the insect population decreased more than 80% after 2 days. 2, spray powder. Use 2.5% trichlorfon or 1.5% methyl 1605 powder to spray 1.5-2 kg per acre. 3, spray. Use of 50% methamidophos 1000 times solution, 20% metshamidophos 1000 times solution, or 5% lefluxin EC 2500 times have a certain effect; dusting, spraying, or spreading toxic soil should all be blocked. That is, starting from the field around the field and advancing toward the center of the field, the embarrassment of the escape can also be treated and died. 4, Irrigation. During the daytime, it is often buried in cracks or natural caves near the roots of crops. After ridges of soybeans, mung beans, peanuts and other parasites, 50% of phoxim EC to water is used 100 times, and 552 C or workers and peasants 16 sprayers are used. Unscrewing the roots of the water-spraying ridges and spraying the roots of the plants, the killing effect is significant. 5, bait trapping. Use 90% crystal trichlorfon or 50% methyl 1605 EC 50 grams, respectively stir in 5 kg of sauteed wheat bran, add appropriate amount of water to compose baits, and spread it in the evening ridge, about 1 kg per mu (by dry In the 8th day, the rate of insect population decline was 85.1% and 87.4% respectively; 10 ml of 20% methyl willow phosphate was used per mu, 2.5 kg of cottonseed cake and wheat bran were added, and 5 kg of water was added. Into a poisonous bait, 5 days after the control effect of more than 90%; with 50% methamidophos EC 25-40 ml per acre, mixed with 4 kg of bait, insecticidal effect are in more than 90%. 6, heap grass trapping. Take advantage of the habit of living under the thin layer of grass. The thickness of 10-20 cm 4 small grass stack by 5 meters a row, 3 meters a pile of evenly placed in the field, the second grass focus on killing; if under the haystack put poison baits or with a diameter of 3-5 cm sticks If you make a cave, you have better results. This method is not convenient for large-scale promotion, but the show is suitable for use in vegetable fields. 7, light trapping. The use of the phototaxis of adult tadpoles and the setting of black-light trapping can significantly reduce field production. 8, manual capture. In the prosperous season, people are mobilized and can also eliminate a large number of pests.
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