近年来棉铃虫发生严重、危害猖獗 ,抗药性增强 ,给该虫的治理工作 ,尤其是治虫药剂的选用带来一定的困难。本试验通过对引进的 7种国外新农药单独使用或复配使用 ,于棉田二、三、四代棉铃虫卵期、卵孵盛期和 1、 2龄幼虫高峰期进行了室内外药效试验 ,初步筛选出室内杀卵效果 79 1 8%～ 91 6 9% ;田间产卵盛期 (初产白色卵占 80 %左右 )防效 80 2 8%～ 93 4 9% ,卵孵高峰期 (黑色卵占 80 %左右 )防效 84 0 3%～89 2 8% ,对 1～ 2龄幼虫达 80 %以上效果的药剂和配方 In recent years, the cotton bollworm is serious, the harm is rampant and the resistance is enhanced. It brings some difficulties to the pest management, especially the selection of the pest control agent. In this experiment, the introduction of seven kinds of foreign new pesticides alone or with the use of cotton fields in the second, third and fourth generations of cotton bollworm egg stage, egg hatching and the first and second instar larvae indoor and outdoor efficacy trials , The initial screening of the indoor kill eggs 79 1 8% ~ 91 6 9%; field spawning period (primiparous white eggs accounted for about 80%) 80 2 8% ~ 93 4 9% Black eggs accounted for about 80%) Control effect 84 0 3% ~ 89 2 8%, 1 ~ 2 instar larvae of more than 80% effect of the agents and formulations