Analysis of mosquito monitoring results in Yandu District of Yancheng City from 2016 to 2022

MA Yongfa; ZHANG Shenglan

doi:10.19821/j.1671-2781.2023.06.007

Abstract：Objective To understand the population composition,density change,habitat distribution and seasonal fluctuation of mosquito in Yandu District of Yancheng City,and to provide reference for mosquito control and mosquito-borne infectious disease control.Methods Mosquito density was measured by light trapping method in residential areas,parks,hospitals,under the eaves of rural houses,near rice fields and wetland parks.Mosquito species and density changes in different years and different habitats were compared and analyzed.Results A total of 86959 mosquitoes were captured,with an average mosquito density of 29.34 mosquitoes/(lamp·night),showing an overall downward trend.The top three mosquito species were Culex pipiens pallens/C.pipiens quinquefasciatus,C.tritaeniorhynchus and Anopheles sinensis,accounting for 64.14%,19.59%and 11.12%of the total number of mosquitoes,respectively.Among the six habitats,the wetland park had the highest mosquito density of 76.69/(lamp·night).Under the rural eaves and near the paddy field,they were 22.87 and 37.29/(lamp·night),respectively.Different mosquito species and habitats showed a single-peak curve seasonal fluctuation peaked in summer.Conclusion The overall mosquito density in Yandu District of Yancheng City showed a downward trend.The dominant mosquito species was C.pipiens pallens/C.pipiens quinquefasciatus.The field environment such as rural areas and wetland parks was the key area for mosquito control.It is necessary to take comprehensive control measures before the arrival of the peak period in summer and autumn.