关键词: 氟鼠灵, 居民区, 鼠密度, 灭鼠

Abstract: 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.

Key words: Flocoumafen, Residential area, Rodent density, Rodent control