Surveillance of mosquito density and seasonal fluctuation from 2018 to 2022 in Fengxian
Objective The density and seasonal fluctuation of mosquitoes in Fengxian during 2018-2022 were ana-lyzed to provide a scientific basis for the prevention and control of mosquitoes and mosquito-borne infectious diseases.Meth-ods Adult mosquito density data,monitored through the lamp trapping method in Fengxian from 2018 to 2022,were collect-ed.The species composition,population density,and seasonal fluctuation of mosquitoes were analyzed.The mosquito species composition ratio was compared with the chi-squared test.The mosquito density in various habitats was analyzed with Welch's analysis of variance in SPSS 22.0 software.Results From 2018 to 2022,the mosquito density in Fengxian was 0.98 mosqui-toes/(lamp·h),and Culex pipiens pallens(88.79％)was the dominant species.Among habitats,the mean mosquito density was highest in livestock sheds(1.74 mosquitoes/(lamp·h))and lowest in residential areas(0.39 mosquitoes/(lamp·h)).A sta-tistically significant difference in mosquito density was observed among habitats(F=4 822.704,P＜0.001).Culex pipiens pal-lens was the dominant mosquito species in various habitats.A statistically significant difference was observed in the composi-tion ratio of mosquito species in different habitats(x2=326.973,P＜0.001).The seasonal fluctuation in mosquito density in Fengxian showed a unimodal curve in each year between 2018 and 2022,with peaks occurring in July in 2019 to 2022,and in August in 2018.Conclusions The overall mosquito density in Fengxian was relatively low,Culex pipiens pallens was the dominant species,the highest mosquito density was observed in livestock sheds,and July was the peak mosquito activity period.In future work,special attention should be paid to the habitat of livestock sheds,and effective measures should be tak-en to decrease mosquito density during the peak mosquito activity period.
NETL
NSTL
万方数据
