Beard M L, Maupin G O, Craven R B, Montman C E, Barnes A M
Bacterial Zoonoses Branch, U.S. Department of Health and Human Services, Fort Collins, Colo. 80522.
J Med Entomol. 1992 Mar;29(2):338-42. doi: 10.1093/jmedent/29.2.338.
Upholstery cotton treated with four different concentrations (0.25-2.0%) (2,500-20,000 ppm) of an aqueous permethrin solution, used as nesting material by white mice, was laboratory-tested against the potential plague vectors Oropsylla montana (Baker), Thrassis bacchi (Rothschild), and Orchopeas howardi (Baker) and found highly effective (P less than 0.001) for 1 yr. Similarly treated cotton gauze was tested under ambient and 75% RH and was found to be highly effective (P less than 0.001) in both environments for 1 yr. A separate test determined that the LD50 of permethrin-treated cotton was less than 10 ppm. Cotton tested with 0.5% permethrin and distributed under field conditions to cricetid rodents for use as nesting material was found to be highly effective (P less than 0.001 as a pulicide for greater than 4 mo when tested during winter in Larimer County, Colo. Permethrin-treated cotton was less successful in controlling fleas on cricetid rodents during the summer months in a New Mexico hyperendemic plague area.
用四种不同浓度（0.25 - 2.0%）（2500 - 20000 ppm）的氯菊酯水溶液处理过的用于小白鼠筑巢材料的装饰棉，在实验室中针对潜在的鼠疫传播媒介蒙大拿山蚤（贝克）、巴氏蚤（罗斯柴尔德）和豪氏山蚤（贝克）进行了测试，结果发现其在1年内效果显著（P小于0.001）。同样处理过的棉纱布在环境条件和75%相对湿度下进行了测试，发现在这两种环境下1年内都效果显著（P小于0.001）。另一项测试确定，经氯菊酯处理的棉花的半数致死剂量小于10 ppm。在科罗拉多州拉里默县冬季测试时，用0.5%氯菊酯处理并在野外条件下分发给仓鼠类啮齿动物用作筑巢材料的棉花，作为杀蚤剂在超过4个月的时间里效果显著（P小于0.001）。在新墨西哥州鼠疫高度流行地区的夏季月份，经氯菊酯处理的棉花在控制仓鼠类啮齿动物身上的跳蚤方面效果较差。
