Bengoa Mikel, Eritja Roger, Lucientes Javier
Department of Parasitology, Veterinary Faculty, University of Zaragoza, Miguel Servet 177, 50013 Zaragoza, Spain.
J Am Mosq Control Assoc. 2013 Sep;29(3):284-8. doi: 10.2987/13-6331R.1.
Aedes albopictus, the Asian tiger mosquito, was 1st detected in Spain in 2004 and since then has spread along the Mediterranean coast. New adulticiding strategies are being tested to enhance control of the species. The residual effect of applications of 2 formulations containing deltamethrin over vegetation was evaluated in bioassay tests for 34 days. Hedera helix plants were treated with K-othrine SC25 (deltamethrin 2.56% SC) and Aqua K-othrine (deltamethrin 2.03% EW). Bioassays consisted of exposing batches of Ae. albopictus females to treated plants. Significant mortality (> 80%) for up to 12 days was obtained with Aqua K-othrine, and for up to 5 days using K-othrine SC25. Results show that the type of formulation has an impact on the residual effect of deltamethrin against Ae. albopictus. This validates the strategy of applying pyrethroid insecticides to vegetal barriers for the control of this species, as carried out in several countries.
白纹伊蚊，即亚洲虎蚊，于2004年在西班牙首次被发现，自那时起已在地中海沿岸扩散。新的成虫防治策略正在进行测试，以加强对该物种的控制。在生物测定试验中，对两种含有溴氰菊酯的制剂在植被上的残留效果进行了34天的评估。用K-othrine SC25（溴氰菊酯2.56%悬浮剂）和Aqua K-othrine（溴氰菊酯2.03%水乳剂）处理常春藤植物。生物测定包括将一批批白纹伊蚊雌蚊暴露于处理过的植物上。使用Aqua K-othrine可在长达12天内获得显著死亡率（>80%），使用K-othrine SC25则可在长达5天内获得显著死亡率。结果表明，制剂类型对溴氰菊酯对白纹伊蚊的残留效果有影响。这验证了在几个国家实施的将拟除虫菊酯类杀虫剂应用于植物屏障以控制该物种的策略。
