Fly density and insecticide resistance of Musca domestica in Huangshi from 2021 to 2023
BAI Yuan
GAO Xiong
Abstract：Objective To understand the density,distribution and seasonal fluctuation of fly populations and the resistance level of Musca domestica to common insecticides in Huangshi City from 2021 to 2023,and provide a basis for scientific control.Methods The density of flies was monitored by cage trapping method from 2021 to 2023.The resistance of Musca domestica was investigated by topical application in 2021 and 2023.The half lethal dose(LD50)and the resistance ratio were calculated.Results A total of 739 flies were captured in the city from 2021 to 2023.The average density of flies was 4.40 flies per cage.Sarcophagidae,Muscina stabulans and Musca domestica accouned for 46.55％,13.94％,and 13.26％,respectively.The highest density of flies in different habitats was found in residential areas and the lowest density was found in the catering-related outdoor environments.The peak of overall fly density occurred in May-June each year.Musca domestica showed sensitivity to permethrin and beta-cypermethrin,and resistance to chlorpyrifos,deltamethrin and beta-cyfluthrin.Conclusion Preliminary information on the composition of fly populations and seasonal fluctuation in Huangshi was obtained.The populations of Musca domestica in the urban area of Huangshi were resistant to five insecticides to varying degrees.It is recommended that the daily monitoring of fly control should continue to be strengthened in the future,and that insecticides should be used in a scientific and rational manner so as to delay the emergence of resistance.
Keywords：flydensityseasonal fluctuationinsecticide resistance
Publication Date：2024-06-20
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：3( 227-229 )