Resistance of Culex quinquefasciatus and Musca domestica to commonly used insecticides in Wanzhou District of Chongqing in 2021
LUO Chao
XIONG Xuewu
TAN Yadong
WAN Jiang
ZUO Lei
Abstract：Objective To understand the resistance of Culex quinquefasciatus and Musca domestica to commonly used insecticides in Wanzhou District of Chongqing,and to provide a scientific basis for control of vectors and related infectious diseases.Methods Larvae dipping method was employed for the resistance determination of Culex quinquefasciatus,while topical application method for the resistance test of Musca domestica.Results The larvae of Culex quinquefasciatus developed 1.48,3.91 and 4.05 folds resistance respectively to propoxur,beta-cypermethrin and temefos,displaying susceptibility to propoxur,low resistance to beta-cypermethrin and temefos.The adults of Musca domestica developed 2.75,26.96 and 53.87 folds resistance respectively to dichlorvos,propoxur and beta-cypermethrin,showing susceptibility to dichlorvos,middle resistance to propoxur and high resistance to beta-cypermethrin.Conclusion The monitoring of resistance of mosquitoes and flies should be strengthened,and the insecticides should be applied reasonably.
Keywords：Culex quinquefasciatusMusca domesticaresistancelarvae dipping methodtopical application method
Publication Date：2023-10-20
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：3( 388-390 )