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近年来由于大面积连续使用单一药剂,使棉蚜产生了抗药性,降低了防治效果.1982年引进菊酯类农药,用1.2万倍效果很好,而到1986年,速灭杀丁防治棉蚜根本无效.为了摸清棉蚜对当前生产上常用的各种杀虫剂的抗药性,找出产生抗药性的原因和规律,提出缓解措施,我们在1986～1987年对辽西棉区棉蚜的抗药性进行了测定和分析.
In recent years, large-area continuous use of a single agent, the cotton aphid had a drug-resistant, reducing the control effect of the introduction of pyrethrum pesticides in 1982, with 12,000 times the effect is very good, and by 1986, Aphid was ineffective.In order to find out the cotton aphid commonly used in the current production of a variety of insecticide resistance, to find out the causes and laws of drug resistance, put forward mitigation measures, we cotton from 1986 to 1987 cotton aphid The drug resistance was measured and analyzed.