Mosquito surveillance and insecticide resistance of Aedes albopictus in Hefei in 2023
WEN Xing
WANG Wenjun
XU Hongping
TANG Zihao
ZHANG Wenyan
ZHANG Lei
Abstract：Objective To investigate the density and seasonal fluctuation of adult mosquitoes,and insecticide resistance of Aedes albopictus in Hefei,so as to provide a scientific basis for mosquito prevention and control.Methods Adult mosquito density was monitored by mosquito trap method,and the insecticide resistance of Aedes albopictus was determined by adult mosquito contact tube method.Excel 2016 and SPSS 26.0 software were used for statistical analysis.Chi-square test was used to compare differences in the species composition of adult mosquitoes between different habitats.Results The average density of female mosquitoes in Hefei was 4.28 mosquitoes/(light·night),and Culex pipiens pallens/Cx.pipiens quinquefasciatus were the dominant species,accounting for 82.07％of the total number of captured mosquitoes.Among the five habitats,the density of mosquitoes in livestock sheds and household were higher than that in the three habitats,and the highest density of mosquitoes was in livestock sheds[7.46 mosquitoes/(light·night)].There were statistical differences in mosquito species composition in different habitats(χ2=52.195,P<0.05).The peak density of mosquito occurred from June to September.Ae.albopictus were resistant to deltamethrin,cypermethrin and beta-cypermethrin,and sensitive to malathion and propoxur.Conclusion The dominant mosquito species in Hefei was Cx.pipiens pallens/Cx.pipiens quinquefasciatus.The density of mosquitoes in rural areas was higher than that in urban areas.Ae.albopictus has developed resistance to pyrethroid insecticides,comprehensive control can be adopted by rotating,mixing insecticides and using synergists.
Keywords：Aedes albopictusdensity surveillanceinsecticide resistance
Publication Date：2025-08-20
Online Publishing Date：2025-08-29(First online date of this platform, not the publication date of the document)
Pages：4( 393-396 )