北海市致倦库蚊对5种杀虫剂的抗药性监测  

Monitoring the resistance of Culex quinquefasciatus to five pesticides in Beihai city

作　　者：林寿远[1] 孔庆鑫[2] 沈智勇[1] 邱丽华[2] 韦凌娅[2] 倪晓平[2] 

机构地区：[1]北海市疾病预防控制中心,广西536000 [2]杭州市疾病预防控制中心

出　　处：《医学动物防制》2011年第4期366-366,368,共2页Journal of Medical Pest Control

摘　　要：目的调查广西北海市致倦库蚊对5种杀虫剂的抗性水平,为化学杀虫剂灭蚊工作提供科学依据。方法采用浸渍法测定Ⅳ龄期幼虫的半数致死浓度(LC50)。结果现场品系的致倦库蚊对敌敌畏、三氯杀虫酯、残杀威、高效氯氰菊酯、溴氰菊酯的抗性倍数依次为6.14、0.07、1.54、0.52、5.00。结论北海市致倦库蚊对敌敌畏、溴氰菊酯已产生一定程度的抗性。Objective To investigate the resistance level of Culex quinquefasciatus to 5 pesticides in Beihai city,and provide scientific basis for chemistry kill of mosquitoes.Method Immersion method of pesticide used to assay the medium lethal concentration（LC50） of the fourth-instar larvae.Results The resistance ratio of Culex quinquefasciatus in field species to dichlorvos,plife nate,propoxur,beta-cypermethrin and deltamethrin were 6.14,0.07,1.54,0.52,and 5.00 respectively.Conclusions The present study showed that Culex quinquefasciatus in Beihai city had high resistance level to dichlorvos and deltamethrin.

关 键 词：致倦库蚊 杀虫剂 抗性 LC50 

分 类 号：R384.1[医药卫生—医学寄生虫学]