Garcia-Luna Selene M, Chaves Luis Fernando, Juarez José G, Bolling Bethany G, Rodriguez Arturo, Presas Ysaias E, Mutebi John-Paul, Weaver Scott C, Badillo-Vargas Ismael E, Hamer Gabriel L, Qualls Whitney A
J Am Mosq Control Assoc. 2019 Sep;35(3):233-237. doi: 10.2987/19-6858.1.
South Texas is recognized as a potential area for the emergence and re-emergence of mosquito-borne diseases due to recent circulation of Zika, chikungunya, and dengue viruses. During 2017, high abundance found in the city of Brownsville, TX, in combination with the previous year's local transmission of Zika virus, triggered the activation of the Texas Department of State Health Services Emergency Mosquito Control Contingency Contract. A contract with the Clarke Environmental and Mosquito Control was a response to control , using a ground-based wide-area larvicide spray (WALS™) containing . The WALS application was evaluated through a field-based bioassay and by comparing surveillance data pre- and post-WALS application. The WALS application bioassay demonstrated that the larvicide was effective up to 60 m into the target properties. Additionally, the number of captured in traps decreased in the WALS intervention areas compared with the untreated control areas, with an estimated 29% control.
南德克萨斯州被认为是蚊媒疾病出现和再次出现的潜在区域,这是由于最近寨卡病毒、基孔肯雅病毒和登革热病毒在该地区传播。2017年期间,在德克萨斯州布朗斯维尔市发现大量蚊虫,再加上前一年寨卡病毒在当地传播,触发了德克萨斯州州立卫生服务部紧急蚊虫控制应急合同的启动。与克拉克环境与蚊虫控制公司签订的合同是为了进行控制,采用含有……的地面广域杀幼虫剂喷雾(WALS™)。通过基于现场的生物测定以及比较WALS应用前后的监测数据来评估WALS应用情况。WALS应用生物测定表明,杀幼虫剂在目标区域内可达60米有效。此外,与未处理的对照区域相比,WALS干预区域诱捕器捕获的蚊虫数量减少,估计控制率为29%。