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近年来，江苏沿海棉区棉铃虫已有一定的抗药性，其中对菊酯类农药抗性已高达１０－２０倍，严重的达６６倍以上；对有机磷类农药的抗性亦达近２０倍。防效下降是棉铃虫连年暴发的原因之一，已给棉花生产带来很大影响。为有效延缓棉铃虫抗性的上升和为害的进一步猖獗，１９９７?
In recent years, cotton bollworm has a certain degree of resistance in Jiangsu coastal cotton area, of which the resistance to pyrethroid pesticides has been as high as 10-20 times, seriously over 66 times; the resistance to organic phosphorus pesticides also reached nearly 20 Times Fall prevention effect is one of the reasons why the bollworm has been outbreak year after year, which has brought a great impact on cotton production. In order to effectively delay the rise of cotton bollworm resistance and the further rampant damage,