红铃虫在长江流域棉区每年均有不同程度的发生,常年可致棉花产量损失10～15%,严重发生年皮棉损失率高达30%以上。为了控制棉红铃虫造成的产量损失,使用化学农药常导致棉田害虫的抗药性、环境 Red bollworm cotton fields in the Yangtze River every year to varying degrees, perennial cotton yield can cause 10 to 15% loss of serious annual lint loss rate as high as 30%. In order to control the yield loss caused by cotton bollworm, the use of chemical pesticides often leads to the resistance of cotton pests to the environment