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Plague management of prairie dog colonies: degree and duration of deltamethrin flea control.
Journal of Vector Ecology ( IF 1.7 ) Pub Date : 2019-05-23 , DOI: 10.1111/jvec.12327
David A Eads 1 , Dean E Biggins 2
Affiliation  

Plague is a flea‐borne disease of mammalian hosts. On the grasslands of western North America, plague stifles populations of Cynomys spp. prairie dogs (PDs). To manage plague, PD burrows are treated with 0.05% deltamethrin dust that can suppress flea numbers and plague transmission. Here, we evaluate the degree and duration of deltamethrin flea control with three PD species at six sites across four U.S. states. Data were simultaneously collected at paired plots. Burrows from one randomly assigned member of each pair were treated with deltamethrin; non‐treated plots served as experimental baselines. Flea control was strong ≤two months after treatment, remained moderate one year later, and was statistically detectable for up to two years at some sites. Flea abundance was lower in plots with higher rates of deltamethrin application. After burrow treatments, flea abundance increased over time, reaching >one per PD within 255 to 352 days. Nevertheless, annual treatments of burrows with deltamethrin provided PDs with substantial protection against plague. Even so, deltamethrin should be further evaluated and combined with other tools under an integrated approach to plague management. Integrated plague management should help to conserve PDs and species that associate with them, including the endangered black‐footed ferret (Mustela nigripes).

中文翻译:

草原犬鼠种群的鼠疫管理:溴氰菊酯蚤控制的程度和持续时间。

鼠疫是一种由跳蚤传播的哺乳动物宿主疾病。在北美西部的草原上,鼠疫窒息了Cynomys种群spp。草原土拨鼠(PDs)。为了控制鼠疫,用0.05%溴氰菊酯粉尘处理PD洞穴,可以抑制跳蚤数量和鼠疫传播。在这里,我们评估了美国四个州中六个地点的三种PD物种对溴氰菊酯蚤的控制程度和持续时间。在配对地块上同时收集数据。用溴氰菊酯处理每对中一个随机分配的成员的洞穴;未经处理的地块作为实验基准。治疗后两个月的跳蚤控制很强,≤一年,一年后仍保持中度,在某些地方统计上可检测到长达两年。在溴氰菊酯施用量较高的地块,跳蚤丰度较低。挖洞处理后,跳蚤丰度随时间增加,在255到352天内,每PD> 1。不过,溴氰菊酯每年对洞穴进行的处理为PD提供了有效的防鼠疫保护。即使如此,溴氰菊酯仍应在鼠疫管理的综合方法下进一步评估并与其他工具结合。鼠疫综合治理应有助于保护PD和与其相关的物种,包括濒临灭绝的黑脚雪貂(鼬(Mustela nigripes)。
更新日期:2019-05-23
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