摘要
目的 :了解蚊虫对常用杀虫剂抗药性发展趋势。方法 :在济宁市区采集淡色库蚊 ,采用区分剂量法和WHO浸渍法测定每种杀虫剂致蚊虫的死亡率和半数致死浓度 (LC50 ) ,并计算抗性指数。结果 :淡色库蚊对DDVP和溴氰菊酯抗药性较强 ,DDVP抗性指数由 8.30倍上升到 2 0 .63倍 ,溴氰菊酯波动在 13.0 9～ 44.2 1倍之间 ,对DDT由 1.11倍上升到 11.5 3倍 ,对马拉硫磷由 1.76倍上升到 6.16倍 ,氯菊酯在 3.0 4～ 5 .40倍之间。结论 :淡色库蚊对常用化学杀虫剂均产生不同程度的抗药性 ,在现场应用中应科学合理地选用杀虫剂。
Objective: To explore the development trend of resistance of Cx. pipiens pallens against commonly used insecticides. Methods: Diagnostic method and WHO bioassay were used to test Cx.pipiens pallens larvae from Jining. Results: Cx.pipiens pallens revealed strong resistance towards DDVP and deltamethrin, with resistant index being 8.30 - 20.63 and 13.09 - 44.21 respectively. The resistant index of DDT, malathion and permethrin was 1.11 - 11.53 , 1.76 - 6.16 , 3.04 - 5.40 respectively. Conclusion: Cx.pipiens pallens produced resistance at various level to commonly used insecticides. Scientific and rational use of insecticides was recommended.
出处
《中国媒介生物学及控制杂志》
CAS
CSCD
2000年第1期30-31,共2页
Chinese Journal of Vector Biology and Control
