【摘要】 目的 阐明安徽省滁州市白纹伊蚊种群动态特征及其对常用卫生杀虫剂的抗药性水平，为区域白纹伊蚊精准防控与杀虫剂合理应用提供科学依据。方法 采用标准化双层叠帐法开展成蚊密度监测，基于勺捕布雷图指数法进行幼蚊种群调查；依据世界卫生组织推荐的幼虫浸渍法，以敏感品系为对照，测定白纹伊蚊幼虫对残杀威、双硫磷、氯菊酯及溴氰菊酯的半数致死浓度(LC₅₀),计算抗药性倍数并进行抗性等级评价。结果 2023年度滁州市白纹伊蚊成蚊帐诱指数居民区为最高10.43只/（顶·h）,时间动态显示成蚊帐诱指数于8月达峰值9.25只/（顶·h）,而布雷图指数（BI）在7月呈现年际最高值16.54。抗药性测试表明，野外种群对残杀威、双硫磷、氯菊酯、溴氰菊酯的抗性倍数分别为4.38、6.29、9.07、8.75,均处于低度抗性水平。结论 滁州市2023年5—11月白纹伊蚊种群密度较高，具有潜在登革热传播风险；对常用杀虫剂处于低度抗性水平，建议建立持续的种群密度监测和抗药性监测机制，在今后每年白纹伊蚊活动高峰期前采用环境治理为主、化学防治为辅的综合防控措施，降低全年白纹伊蚊密度水平。更多还原

【Abstract】 Objective To elucidate the population dynamics of Aedes albopictus and their resistance levels to common public health insecticides in Chuzhou, Anhui Province, so as to provide a scientific basis for precise control of Ae. Albopictus and rational application of insecticide in this region. Methods Adult mosquito density was monitored using standardized double-layer mosquito net traps, while larval populations were investigated via the Breteau index method. The median lethal concentration(LC₅₀) of fourth instar larvae to propoxur, temephos, permethrin, and deltamethrin was determined using the World Health Organization recommended larval immersion bioassay, with a susceptible strain as control. Resistance ratios and resistance levels were calculated. Results In 2023, the mosquito net attraction index for Ae. albopictus in residential areas of Chuzhou was the highest at 10.43 mosquitoes/（net·hour）. Temporal dynamics showed peak adult mosquito net trap indices in August [9.25 mosquitoes/（net·hour）] and the highest Breteau Index in July（16.54）. Resistance testing indicated low-level resistance for field populations, with resistance ratios of 4.38（propoxur）, 6.29（temephos）, 9.07（permethrin）, and 8.75（deltamethrin）, respectively. Conclusion The population density of Ae. albopictus in Chuzhou remained persistently high from May to November 2023, indicating a potential risk for dengue virus transmission. Ae. Albopictus populations exhibited low-level resistance to commonly used insecticides. To mitigate these risks, it is recommended to establish sustained monitoring mechanisms for both population density and insecticide resistance. Prior to the annual peak activity period of Ae. albopictus, integrated control strategies should prioritize environmental management supplemented by targeted chemical interventions. This approach is critical to reducing overall mosquito density throughout the year.更多还原