温州市蚊虫分布及白纹伊蚊抗药性调查分析(2023年)  

Investigation on the distribution of mosquitoes and insecticide resistance of Aedes albopictus in Wenzhou,2023

作　　者：李江峰[1] 陈帅 赵炎煜 高阳阳 Li Jiangfeng;Chen Shuai;Zhao Yanyu;Gao Yangyang(Enwiromental and Occupational Health Institute,Wenzhou Center for Disease Control and Prevention(Wenzhou Health Supervision Institute),Wenzhou 325001,China;Department of Infectious Disease Control and Prevention,Wenzhou Center for Disease Control and Prevention(Wenzhou Health Supervision Institute),Wenzhou 325001,China)

机构地区：[1]温州市疾病预防控制中心(温州市卫生监督所)环境与职业健康所,温州325001 [2]温州市疾病预防控制中心(温州市卫生监督所)传染病防制所,温州325001

出　　处：《国际流行病学传染病学杂志》2024年第6期407-411,共5页International Journal of Epidemiology and Infectious Disease

基　　金：温州市科学技术局基础性公益科研项目(Y2023027、Y2023029)。

摘　　要：目的了解2023年温州市蚊虫种群分布、季节特征,及白纹伊蚊对杀虫剂的抗药性情况。方法于2023年4—11月,在温州市11个县(市、区)5类生境采用诱蚊灯法开展蚊虫分布监测。采用幼虫浸渍法和成蚊接触法分别测定白纹伊蚊幼蚊和成蚊对常用杀虫剂的抗药性。结果2023年共捕获雌性成蚊4506只,蚊虫密度为3.76只/(灯·夜),不同生境成蚊构成差异有统计学意义(χ^(2)=874.66,P<0.001)。牲畜棚成蚊密度最高,淡色库蚊为优势蚊种,占70.48%(3176/4506);成蚊季节消长高峰日为8月3日,高峰期范围为6月7日至10月1日。白纹伊蚊幼蚊对双硫磷和残杀威的抗性倍数分别7.31和4.16,表现为低抗;白纹伊蚊成蚊对0.05%残杀威表现为敏感,对0.4%氯菊酯表现为抗性。结论温州市蚊虫以淡色库蚊为主,蚊虫消长有明显的季节特征,应加强牲畜棚、公园、居民区等生境的蚊虫治理。白纹伊蚊幼虫和成蚊对常用杀虫剂产生不同程度的抗性。Objective To investigate the population distribution and seasonal fluctuation of mosquitoes,and the insecticide resistance of Aedes albopictus in Wenzhou in 2023.Methods From April to November 2023,mosquito distribution monitoring was conducted in 1l counties(cities and districts)of Wenzhou using light traps across 5 biotopes.The insecticide resistance of Aedes albopictus larvae and adults to commonly used insecticides was assessed by larval immersion test and adult contact method,respectively.Results A total of 4506 female adult mosquitoes were captured in 2023,with the density of 3.76 insects per lamp at one night.The composition of adult mosquitoes was statistically significant in different habitats(χ^(2)=874.66,P<0.001),with the highest density of mosquitoes found in livestock sheds.Culex pipiens pallens was the dominant species,accounting for 70.48%(3176/4506).The peak of seasonal mosquito abundance occurred on August 3,with the peak period ranging from June 7 to October 1.The resistance ratios of Aedes albopictus larvae to temephos and propoxur were 7.31 and 4.16,respectively,indicating low resistance.The adult mosquitoes of Aedes albopictus were sensitive to 0.05% propoxur,but showed resistance to 0.4% permethrin.Conclusions The dominant species in Wenzhou is Culex pipiens pallens.Adult mosquitoes show distinct seasonal variations,and mosquito control should be strengthened in habitats such as livestock sheds,parks,and residential areas.Aedes albopictus larvae and adults have developed varying degrees of resistance to commonly used insecticides.

关 键 词：白纹伊蚊 蚊虫 抗药性 成蚊密度 

分 类 号：R18[医药卫生—流行病学]