%0 Journal Article %A SHAN Ning %A ZHOU Yi-bin %A CHEN Hong %T Influencing factors for mosquito breeding in underground garages in winter in Jing'an district,Shanghai,China %D 2022 %R 10.11853/j.issn.1003.8280.2022.05.018 %J Chinese Journal of Vector Biology and Control %P 710-714 %V 33 %N 5 %X Objective To investigate influencing factors for mosquito breeding in underground garages in winter,and to provide a basis for mosquito control.Methods From January to February 2021,we selected underground garages from the subdistricts or towns of Jing'an district,Shanghai,China,and investigated mosquito breeding in the garages and long-term ponding from rainwater wells and water-collecting wells in the garages by using the mosquito larval spoon method and resting mosquito collection method.Excel 16.0 and SPSS 20.0 softwares were used to process and analyze the data with the Chi-square test and forward stepwise multivariable logistic regression analysis (variables with P ≤ 0.05 were included).Results A total of 58 underground garages and 470 sites of ponding were investigated.The positive rate was 46.55%.The larval breeding rate in ponding was 14.26%.Among the positive sites of ponding,65 harbored Culex pipiens larvae and 2 harbored Aedes albopictus larvae.Thirty-five adult mosquitoes were captured,all belonging to Cx.pipiens pallens,with a fat-body development rate of 31.43% and an ovarian development rate of 8.57%.In the underground garages,the average temperature was (14.61±2.69)℃,and the average humidity was (51.41±18.02)%.The multivariable logistic regression analysis showed that an old construction age (underground garages built in or before 2005 versus newer ones built during 2011 to 2020[odds ratio (OR)=3.12,95% confidence interval (CI):1.35-7.26],property management cost more than 5 yuan/month·m2(OR=3.58,95%CI:1.17-10.93),good daylighting or lighting (OR=0.43,95%CI:0.23-0.80),and the presence of adult mosquito activities (OR=6.51,95%CI:1.82-23.32) were risk factors for the breeding of mosquito larvae.Conclusion Cx.pipiens and Ae.albopictus breeding are still present and develop in winter in the underground garages of Jing'an district,Shanghai.Daylighting/lighting,adult mosquito activities,and old buildings are influencing factors for larvae breeding.High-tech residence with high property management fees also provides favorable conditions for mosquito breeding and development in winter because of the use of constant temperature and humidity facilities. %U http://www.bmsw.net.cn/EN/10.11853/j.issn.1003.8280.2022.05.018