烟粉虱Bemisia tabaci(Gennadius)是一类全球广泛分布的农业害虫,由至少24个生物型组成,其中B和Q型烟粉虱入侵性最强、为害最重。目前,化学防治仍是防治烟粉虱的主要手段,吡虫啉、噻虫嗪等新烟碱类药剂因杀虫效果好、持效期长而成为防治该虫的重要药剂。但是大量持续使用药剂易导 Bemisia tabaci (Gennadius) is a group of agricultural pests widely distributed in the world. It consists of at least 24 biotypes, of which Bemisia tabaci B and Q Bemisia tabaci have the highest infestation and the worst damage. At present, chemical control is still the main method to control Bemisia tabaci. New neonicotinoids such as imidacloprid and thiamethoxam are important pesticides for controlling insects because of their insecticidal effect and long duration. However, a large number of continued use of drugs easily lead