关键词: 蝇类, 监测, 抗药性

Abstract: Objective To investigate the fly population and density and the insecticide resistance of Musca domestica in Zhejiang province, China, and to provide a reference for fly control. Methods The fly population and density were investigated by cage trap method with brown sugar and vinegar as baits from April to November. Topical application method was used to investigate the insecticide resistance of M. domestica. Results The trapped flies belonged to 14 species, 7 genera, and 3 families. The density of Chrysomya megacephala was the highest (3.36 flies/cage), followed by M. domestica. The peak level of fly density appeared in May, June, and August. M. domestica in the monitoring sites had high resistance to pyrethroid, low resistance to dichlorvos, and little resistance to acetofenate. Conclusion Fly density reaches the peak level in June in Zhejiang province, China, and M. domestica and C. megacephala are the dominant species. The field strains of M. domestica have high resistance to pyrethroid. Insecticides should be mixed and used by turns in the future fly control to prevent the increase of insecticide resistance.

Key words: Fly, Monitoring, Insecticide resistance