Elia-Amira N M R, Chen C D, Lau K W, Lee H L, Low V L, Norma-Rashid Y, Sofian-Azirun M
Institute of Biological Sciences, Faculty of Science, University of Malaya, Kuala Lumpur, Malaysia.
Medical Entomology Unit, Institute for Medical Research, Jalan Pahang, Kuala Lumpur, Malaysia.
J Econ Entomol. 2018 Sep 26;111(5):2488-2492. doi: 10.1093/jee/toy184.
The present study aims to investigate the susceptibility status of Aedes albopictus (Skuse) collected from residential areas in Sabah, Malaysia towards eight WHO-recommended dosages of larvicides representing the classes of organophosphates and organochlorines. Field and reference strains of Ae. albopictus larvae were bioassayed in accordance to WHO standard methods using diagnostic dosages of bromophos, malathion, fenthion, fenitrothion, temephos, chlorpyrifos, dichlorodiphenyltrichloroethane (DDT), and dieldrin. The results revealed that Ae. albopictus was resistant (mortality < 90%) towards malathion, temephos, and DDT. In addition, most of the Ae. albopictus strains exhibited a wide range of susceptibilities against bromophos, with mortality ranged from 49.33 to 93.33%. On the contrary, only dieldrin was able to induce 100% mortality against all strains of Ae. albopictus. Tolerance to fenitrothion, fenthion, and chlorpyrifos, with mortality ranging from 81.33 to 97.33%, was also observed in this study.
本研究旨在调查从马来西亚沙巴州居民区采集的白纹伊蚊（Skuse）对世界卫生组织推荐的代表有机磷和有机氯类别的八种杀幼虫剂剂量的敏感性状况。白纹伊蚊幼虫的野外和参考品系按照世界卫生组织标准方法，使用溴磷、马拉硫磷、倍硫磷、杀螟硫磷、双硫磷、毒死蜱、二氯二苯三氯乙烷（滴滴涕）和狄氏剂的诊断剂量进行生物测定。结果显示，白纹伊蚊对马拉硫磷、双硫磷和滴滴涕具有抗性（死亡率<90%）。此外，大多数白纹伊蚊品系对溴磷表现出广泛的敏感性，死亡率在49.33%至93.33%之间。相反，只有狄氏剂能够对白纹伊蚊的所有品系诱导100%的死亡率。本研究还观察到对白螟硫磷、倍硫磷和毒死蜱的耐受性，死亡率在81.33%至97.33%之间。
