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1虫害的防治玉米中后期是害虫的多发期,主要害虫有蚜虫、玉米螟、粘虫、棉铃虫等。防治蚜虫,可用50%辟蚜雾每667平方米8～10克或10%吡虫啉每667平方米10～15克对水45千克喷雾。防治玉米螟,可在玉米螟在小口期(第9～10叶展开),用3%辛硫磷颗粒剂0.5千克,掺细沙7.5千克,混匀
Prevention and control of pests A mid-and late-stage pests of corn is the multiple pests, the main pests are aphids, corn borers, armyworms, cotton bollworm and so on. Aphids can be used to control 50% of the aphids against fog per 667 square meters 8 to 10 grams or 10% of imidacloprid 667 square meters 10 to 15 grams of water 45 kg spray. Prevention and control of corn borer, corn borer in the small mouth (9th to 10th leaf start), with 3% phoxim granules 0.5 kg, fine sand mixed 7.5 kg, mix