烟青虫(Chloridea assulta Guenee)是危害烟草的主要害虫,在我国各产烟省(区)均有发生。烟叶被害后产量下降,等级降低,留种烟田被害,其蒴果被食成洞,严重影响种子的产量和质量。自1981年起我们用2.5％溴氰菊酯乳油在烟草上对烟青虫作了防治试验及示范,现将结果整理如下: Chloridea assulta Guenee is a major pest that endangers tobacco and occurs in all provinces of tobacco production in our country. Tobacco leaf yield decline, the level of decline, leaving the tobacco fields were killed, the capsule was eaten into a hole, seriously affecting the yield and quality of the seeds. Since 1981, we used 2.5% deltamethrin EC to control and test tobacco budworms against tobacco budworms. The results are summarized as follows: