Abstract
Objective To investigate the density seasonal fluctuation and insecticide resistance of Anopheles sinensis in the Taibai Lake area and to provide a scientific basis for formulation of Anopheles sinensis control strategy. Methods The surveillance was carried out from June to October in 2013-2016. The adult mosquito density was monitored using human bait trapping method. WHO bioassay method was used to measure the sensibility of mosquitoes to insecticides. Results In 2013-2016, totally 2 318 Anopheles sinensis were captured, the Anopheles sinensis peaked in late July till early August, which were 67-127, 317-386, 77-89, 107-139, respectively. Anopheles sinensis showed high resistance to dichlorodiphenyltrichloroethane, malathion, and initial resistance to propoxur and deltamethrin (mortality ratio: 38.10%, 41.82%, 86.11%, 83.02%). Conclusions The Taibai Lake area has a diverse Anopheles sinensis population, its seasonal fluctuations and insecticide resistance monitoring can provide effective guidance for malaria control. In order to prevent the development of resistance to the insecticides, integrated management measures should be adopted in the future. Key words: Anopheles sinensis; Seasonal variation; Resistance monitoring
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