菜青虫(Pieris rapae L)是我省蔬菜生产上的一种重要害虫。主要危害甘兰等十字花科蔬菜,每年发生量均很大,严重地影响了蔬菜生产。对菜青虫的药剂防治,过去多般使用六六六、滴滴涕、敌百虫、敌敌畏等。十多年来,由于菜青虫发生数量大,世代多,每年施药量大,且长期单施上述几种杀虫剂,使菜青虫不同程度地产生了抗药性,防治效果逐年下降,生产成本不断提高,菜青虫的防治就成了蔬菜生产上急待解 Pieris rapae L. is an important pest in the vegetable production in our province. Major hazards such as cabbage and other cruciferous vegetables, the annual occurrence is very large, seriously affected the vegetable production. Pieris rapae on the prevention and treatment of pesticides, the past as much as the use of BHC, DDT, trichlorfon, dichlorvos and so on. For more than a decade, due to the large number of Pieris rapae, many generations, large doses each year, and the long-term single application of the above several insecticides, cabbage caterpillars have different levels of resistance, control efficacy decreased year by year, the cost of production Constantly improve the prevention and treatment cabbage worm became a vegetable production urgent solution