通过对几种农药的单独使用或混配使用,筛选出了对棉铃虫防效高、保蕾效果好的农药品种。结果表明,30%辛·灭·甲氰乳油,田间最佳用量为225～300 ml/hm~2,45%甲·辛·敌乳油田间最佳用量为1 125g～1 275ml/hm~2,田间使用过程中可以与辛硫磷乳油、敌敌畏乳油、甲基1605乳油交替使用,并且能够延缓棉铃虫抗药性的发展。 Through the use of several pesticides alone or in combination, we screened out the pesticide varieties with high anti-bollworm efficacy and good bud-keeping effect. The results showed that the optimal dosage of 30% synergistic with methylcyanide was 225 ~ 300 ml / hm ~ 2,45%, and the best dosage was 1 125g ~ 1 275ml / hm ~ 2, During field use, it can be used interchangeably with phoxim, dichlorvos and methyl 1605 EC, and can retard the development of resistance to H. armigera.