ISSN 1003-8280 CN 10-1522/R 中国疾病预防控制中心 主办
Chinese Journal of Vector Biology and Control >
Study on the seasonal dynamics and insecticides resistance of Aedes albopictus larvae,in Shanghai,2015-2016
Received date: 2017-05-10
Online published: 2017-08-20
Supported by
Supported by the Municipal Natural Science Foundation of Shanghai of China (No. 16ZR1430000) and the 4th Round of Public Health Three Action Plan (No. GWIV-1)
Objective To understand the seasonal dynamics of Aedes albopictus larvae and their insecticides resistance distribution in Shanghai and provide science evidence for rational application of insecticides. Methods Density of Ae. albopictus larvae was surveyed by Breteau index(BI) method and Mosquito and oviposition positive index (MOI) method in residential areas, green areas, indoors of public areas and other institutions once a month. Larvae resistance was tested by dipping method recommended by WHO. Results Aedes albopictus had one peak in Shanghai in 2015-2016, and the peak was from June to July. The highest BIs were 6.50 and 6.18 in 2015 and 2016, respectively. The highest MOIs were 10.72 and 6.60 in 2015 and 2016, respectively. The Ae. albopictus larvae showed medium to high resistance to Deltamethrin and beta Cypermethrin, and the highest resistance ratios were 77.00 and 81.00 in Putuo district respectively. Larvae developed low to medium resistance to propoxur, and low resistance to temephos. Conclusion It is necessary to strengthen density and resistance surveillance of Ae. albopictus, and choose insecticides reasonably to delay the development of insecticide resistance and improve control efficacy.
LIU Hong-xia, ZHU Jiang, LIU Yao, XU Jin-qiu, LENG Pei-en . Study on the seasonal dynamics and insecticides resistance of Aedes albopictus larvae,in Shanghai,2015-2016[J]. Chinese Journal of Vector Biology and Control, 2017 , 28(4) : 305 -307 . DOI: 10.11853/j.issn.1003.8280.2017.04.001
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