目的 比较新农村建设前后山东省微山湖滨湖区淡色库蚊的密度及抗药性水平。方法 选择滨湖区韩庄镇西村和石庄村分别作为建设村和对照村;分别采用人帐诱法监测淡色库蚊密度,WHO的幼虫浸渍法检测淡色库蚊抗性。结果 新农村建设后,西村淡色库蚊的相对密度指数平均为0.285,相对密度下降率为71.50%;对残杀威、敌敌畏和三氯杀虫酯的抗性衰退率分别为88.52%、93.50%和87.67%,对氯氰菊酯、溴氰菊酯的抗性增长率分别为30.15%和34.38%。结论 山东省滨湖区新农村建设对淡色库蚊的防制有积极的影响。新建的韩庄镇西村,近期应减少使用拟除虫菊酯类杀虫剂。

Objective To investigate the population densities and insecticide resistance level of Culex pipiens pallens in the lakeside area of Weishan Lake in Shandong province, China, before and after new countryside development. Methods Xicun village and Shizhuang village at the lakeside of Weishan Lake were used as countryside construction sample and control, respectively. The population density of mosquitoes was determined using the human-bated net trap, while insecticide resistance was evaluated with the use of WHO larva immersion method. Results After the new countryside development, the relative population index of Cx. pipiens pallens in Xicun village was 0.285, with a 71.50% decrease. The resistance to propoxur, DDVP, and acetofenate decreased by 88.52%, 93.50%, and 87.67%, respectively, while the resistance to cypermethrin and deltamethrin increased by 30.15% and 34.38%, respectively. Conclusion The new countryside development showed a positive impact on the control of Cx. pipiens pallens in the lakeside area of Weishan Lake in Shandong province. The use of pyrethroids should be reduced in Xicun village of Hanzhuang town.