目的 观察0.005%氟鼠灵稻谷毒饵在城市居民区外环境的灭鼠效果，探索居民区鼠类控制技术并推广应用。方法 2019年6月初在南京地区将0.005%氟鼠灵稻谷毒饵用不同投药方法投放于环境相似、鼠密度相近的6个不同居民区外环境，采用Excel 2016软件进行数据统计，使用χ2检验比较分析不同投饵方式的灭鼠效果。结果 试验组3个居民区共捡获39只褐家鼠和1只小家鼠，对照组3个居民区共捡获褐家鼠17只，试验组鼠洞和鼠隐蔽活动场所直接投放毒饵后捡获的死鼠数量明显多于对照组；试验组3个居民区内投放0.005%氟鼠灵毒饵21 d后鼠密度下降率均为100%，对照组3个居民区的鼠密度下降率分别为100%、70.3%和87.9%，平均下降率为86.1%。结论 使用0.005%氟鼠灵稻谷毒饵直接投放毒饵至鼠洞、管井，并结合毒饵站的方式灭鼠效果优于仅在毒饵站投放毒饵。
Objective To observe the efficacy of a 0.005% flocoumafen rice bait for rodent control in the outdoor environment of urban residential areas, and to explore rodent control technology in residential arese for promotion and application. Methods A 0.005% flocoumafen rice bait was set by different baiting methods to six different outdoor residential areas with comparable environmental situations and rodent densities in Nanjing, Jiangsu province, China, at the beginning of June 2019. Excel 2016 software was used for data analysis, and the chi-square test was applied for comparing the efficacy of different baiting methods. Results A total of 39 Rattus norvegicus and 1 Mus musculus were collected from three experimental areas, while 17 R. norvegicus were collected from three control areas. The number of dead rodents in the experimental areas after baiting directly in rodent holes and their hidden haunts was significantly higher than that in the control areas. Twenty-one days after bait placement, the rodent densities declined by 100% in all the three experimental areas, while the densities in the three control areas decreased by 100%, 70.3%, and 87.9%, respectively, with a mean decline of 86.1%. Conclusion Placing the 0.005% flocoumafen rice bait directly in rodent burrows and tube wells and also in bait stations is superior in rodent control to setting the bait only in bait stations.
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