Anastasia Mosquito Control District, 120 EOC Drive, St. Augustine, FL, U.S.A.
Malaria Research and Training Center, Faculty of Medicine, Pharmacy and Odontostomatology, University of Sciences, Techniques and Technology of Bamako, Bamako, Mal, BP 1805, Bamako, Mali.
J Vector Ecol. 2020 Jun;45(1):100-103. doi: 10.1111/jvec.12377.
Current methods of broad area application of contact insecticides used in mosquito control are becoming less effective, primarily due to resistance within mosquito populations. New methods that can deliver ingestible insecticides are being investigated as a means to mitigate resistance. This study evaluated insecticide delivery through toxic sugar baits (TSB) and resulting mortality of susceptible and resistant strains of Aedes aegypti. Two Ae. aegypti strains were evaluated using a 1% boric acid TSB: the susceptible Orlando 1952 (ORL) strain and the resistant Puerto Rican (PR) strain. The TSB resulted in high mortality for both ORL and PR strain of Ae. aegypti. Average mortality of female mosquitoes given TSB was 90.8% for PR and 99.3% for ORL. Our study suggests that targeting resistant mosquitoes with ingestible insecticides through TSBs could be a viable alternative to current mosquito control strategies and should be considered when developing an integrated vector management program.
目前用于蚊虫控制的接触性杀虫剂的大面积应用方法效果越来越差，主要是由于蚊虫种群产生了抗药性。人们正在研究新的方法，通过可摄入的杀虫剂来减轻抗药性。本研究评估了通过有毒糖诱饵（TSB）来传递杀虫剂的效果，以及对敏感和抗性埃及伊蚊（Aedes aegypti）菌株的致死率。使用 1%硼酸 TSB 对两种埃及伊蚊菌株进行了评估：敏感的奥兰多 1952（ORL）菌株和抗性的波多黎各（PR）菌株。TSB 导致 ORL 和 PR 菌株的埃及伊蚊死亡率均很高。接受 TSB 的雌性蚊子的平均死亡率为 PR 菌株的 90.8%和 ORL 菌株的 99.3%。我们的研究表明，通过 TSB 针对抗性蚊子使用可摄入杀虫剂可能是一种替代当前蚊虫控制策略的可行方法，在制定综合病媒管理计划时应加以考虑。
