关键词: 家蝇, 抗药性, 浙江省

Abstract:

Objective To investigate the resistance status of adults Musca domestica to 6 commonly used insecticides in Zhejiang province, providing scientific basis for its prevention and control. Methods We collected adult M. domestica from 12 monitoring sites in Huzhou, Jiaxing, Shaoxing, Taizhou, Yiwu, Lishui, Zhoushan, Quzhou, Wenzhou, Jinhua, Hangzhou, and Ningbo during May and October in 2017, and brought them back to the insectary. Topical application method was used to determine the resistance of M. domestica to 6 commonly used insecticides in 12 cities of Zhejiang province. Results The LD₅₀ values of the twelve monitoring points to beta-cypermethrin, deltamethrin, permethrin, DDVP, propoxur were 0.003 0-3.281 8, 0.005 1-0.262 6, 0.003 1-0.425 3, 0.010 0-40.409 2, and 0.044 7->160.000 0 μg/♀, and the resistance ratio were 0.8-911.6, 3.6-291.8, 6.3-39.4, 1.4-892.0, and 1.9->538.2 fold. The LD₅₀ values of the Hangzhou population to acetofenate was 1.547 8 μg/♀, the resistance ratio was 7.2 fold. Conclusion The adult M. domestica of most monitoring points have been resistant to commonly used insecticides. In practice, insecticides resistance surveillance should be highlighted, and insecticides should be used scientifically and rationally to prevent and reduce the occurrence and development of resistance.

Key words: Musca domestica, Insecticide resistance, Zhejiang province