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1992年棉铃虫特大发生,给棉花生产造成严重损失,为彻底防治棉铃虫,遵循“综合防治,准确测报,抓住战机,科学用药,讲究方法,注重实效”的原则,提出防治历,供参考。 4月份:在棉田种植玉米诱集带,主防二代棉铃虫成虫。选择早熟玉米与棉花同期播种(玉米喇叭口期与棉铃虫成虫盛期相吻合,成虫盛期为6月10～25日)。 5月份:根治麦田一代棉铃虫兼治麦蚜,降低二代棉铃虫的虫口密度。喷药时间5月10～20日。麦田用药应使用高效低毒农药,如甲胺磷、灭多威
In 1992, the cotton bollworm occurred exceptionally, which caused serious losses to the cotton production. In order to completely prevent and cure the cotton bollworm and follow the principle of “comprehensive prevention and control, accurate measurement and reporting, seizing the fighters, using medicine in a scientific manner, paying attention to methods and paying attention to actual results” . April: planting corn in the cotton field trap, the second generation to prevent adult cotton bollworm. Select precocious maize and cotton sowing at the same time (the corn trumpet mouth stage coincides with the bollworm adult, the adult peak is June 10 ~ 25). May: eradicate the first generation of cotton bollworm and wheat aphid in wheat field and reduce the population density of second generation cotton bollworm. Spraying time May 10 to 20. Wheat field medicine should use high efficiency and low toxicity pesticides, such as methamidophos, methomyl