Biomathematics Graduate Program, North Carolina State University, Raleigh, NC.
The Mosquito Authority, LLC, Morrisville, NC.
J Med Entomol. 2020 Jul 4;57(4):1104-1110. doi: 10.1093/jme/tjaa016.
The Asian tiger mosquito, Aedes (Stegomyia) albopictus (Skuse), is a peridomestic, container-ovipositing mosquito commonly found throughout the southeastern United States. In the United States, Ae. albopictus is typically considered a nuisance pest; however, it is capable of transmitting multiple pathogens. Ae. albopictus is an important pest species and the target of numerous mosquito control efforts in the United States. Here, we evaluate the effectiveness and spatial extent of Ae. albopictus population reduction using a bifenthrin (AI Bifen IT, 7.9%) barrier spray and larval habitat management (LHM) in a temperate, suburban setting. Sixteen pairs of adjoining neighbors were randomly assigned to treatment groups with one neighbor receiving a treatment and the other monitored for evidence of a spillover effect of the treatments. Ae. albopictus populations in both yards were monitored for 33 d, with treatments occurring on the eighth day. Barrier sprays, both alone and combined with LHM, resulted in a significant reduction in Ae. albopictus abundance posttreatment. While LHM alone did not result in a significant reduction over the entire posttreatment period, Ae. albopictus populations were observed to be in decline during this period. No treatments were observed to have any reduction in efficacy 25 d posttreatment, with treatments involving LHM having a significantly increased efficacy. Yards neighboring treated yards were also observed to have reduced population sizes posttreatment, but these differences were rarely significant. These results provide insights into the population dynamics of Ae. albopictus following two common treatments and will be useful for integrated pest management plans.
亚洲虎蚊，白纹伊蚊（Stegomyia）（Skuse），是一种半家栖、容器产卵的蚊子，通常在整个美国东南部都有发现。在美国，白纹伊蚊通常被认为是一种滋扰害虫；然而，它能够传播多种病原体。白纹伊蚊是一种重要的害虫物种，也是美国众多蚊子控制工作的目标。在这里，我们评估了在温带郊区环境中使用联苯菊酯（AI Bifen IT，7.9%）屏障喷雾和幼虫栖息地管理（LHM）来减少白纹伊蚊种群的有效性和空间范围。16 对相邻的邻居被随机分配到治疗组，一组接受治疗，另一组监测治疗的溢出效应证据。对两个院子里的白纹伊蚊种群进行了 33 天的监测，在第八天进行了处理。单独使用和与 LHM 联合使用的屏障喷雾都导致处理后白纹伊蚊丰度显著降低。虽然 LHM 单独使用在整个处理后期间没有导致显著减少，但在此期间观察到白纹伊蚊种群正在减少。在 25 天的处理后，没有观察到任何处理的效果降低，而涉及 LHM 的处理则具有显著增加的效果。处理过的院子相邻的院子在处理后也观察到种群规模减少，但这些差异很少有统计学意义。这些结果为两种常见处理后白纹伊蚊的种群动态提供了深入了解，将有助于综合虫害管理计划。
