小菜蛾是十字花科植物的主要害虫。特别在热带地区一年繁殖18代之多,造成甘蓝等蔬菜大量减产。 在马来西亚,小菜蛾的抗性正在发展,常用的杀虫剂对小菜蛾的防效已大大降低。采用马来西亚金马伦高地收集的小菜蛾作为试验材料,试验其对几种杀虫剂的抗谱。结果表明, Plutella xylostella is a major pest of cruciferous plants. In particular, breeding 18 generations a year in the tropics, resulting in a large number of vegetables such as cabbage cut. In Malaysia, diamondback moth resistance is developing, and commonly used insecticides have greatly reduced their effectiveness against diamondback moth. The diamondback moth collected from Cameron Highlands, Malaysia was used as a test material to test its antimicrobial activity against several insecticides. The results show,