Parker Casey N, Pereira Roberto M, Baldwin Rebecca W, Chaskopoulou Alexandra, Koehler Philip G
Florida Medical Entomology Laboratory, Department of Entomology and Nematology, University of Florida - IFAS, 200 9th Street SE, Vero Beach, FL 32962.
Department of Entomology and Nematology, University of Florida - IFAS, 970 Natural Area Drive, Gainesville, FL 32611.
J Med Entomol. 2017 Nov 7;54(6):1666-1673. doi: 10.1093/jme/tjx161.
Aedes aegypti (L.) (Diptera: Culicidae) are known to flourish in a variety of natural and residential habitats and are competent vectors of at least 22 different arboviruses, including dengue, chikungunya, and Zika. Their global distribution, anthropophilic nature, and vector competency make them species of interest for control. A novel durable dual-action lethal ovitrap (DDALO) with combined larviciding and adulticiding effects, as well as a slow-release polymer (isobutyl methacrylate), was designed to target Ae. aegypti. The use of the DDALO resulted in high adult mosquito mortality (95-100%) in no-choice laboratory cage studies targeting gravid females and successfully prevented all deposited eggs from hatching. Aging of the traps caused some loss in activity over time, but they still caused adult mortality (50%) and continued to prevent successful hatching of eggs for 6 mo. Oviposition preference studies resulted in ~4.5 times as many larvae developing in untreated DDALOs compared with the other containers combined. Small-cage multigenerational studies resulted in significantly lower populations of adult mosquitoes in cages containing treated DDALOs after 4 wk. Successful laboratory studies show that the DDALO appears to be a promising tool that could be used for controlling wild vector populations of Ae. aegypti in combination with other mosquito control practices.
埃及伊蚊（双翅目：蚊科）已知能在各种自然和居住环境中大量繁殖，并且是至少22种不同虫媒病毒的有效传播媒介，包括登革热、基孔肯雅热和寨卡病毒。它们的全球分布、嗜人性以及传播媒介能力使其成为控制工作关注的物种。一种具有杀幼虫和成蚊双重作用且带有缓释聚合物（甲基丙烯酸异丁酯）的新型长效双效致死诱蚊产卵器（DDALO）被设计用于针对埃及伊蚊。在针对孕蚊的无选择实验室笼养研究中，使用DDALO导致成年蚊子的高死亡率（约95% - 100%），并成功阻止了所有产下的卵孵化。随着时间推移，诱蚊产卵器老化导致活性有所损失，但它们仍能导致成年蚊子死亡（约50%），并在6个月内持续阻止卵成功孵化。产卵偏好研究结果显示，与其他容器组合相比，在未处理的DDALO中发育的幼虫数量多出约4.5倍。小笼多代研究结果表明，4周后，在装有经处理的DDALO的笼子中，成年蚊子数量显著减少。成功的实验室研究表明，DDALO似乎是一种有前景的工具，可与其他蚊虫控制措施结合用于控制埃及伊蚊的野生传播媒介种群。
