关键词: 杀它仗, 特殊环境, 灭鼠

Abstract: The aim of the trials was to demonstrate the efficacy of Stratagem against commensal rodents in special environments. Stratagem, provided by CYANAMID, is a new generation of anticoagulant rodenticide with good palatability. The effect was determined by comparing the positive rates of rodent tracks. The trials were divided into three stages. For the first stage, the Stratagem ready made baits, Stratagem bait block and cut wheat bait with 0.005% flocoumafen, were used at the average dosage 10 gram/15 m². The population decline rates (deratization rates)were 87.74% in the hospital, 91.39% in the hotel and 86.67% in the chicken farm, respectively. For the second stage, the Stratagem powder with 0.1% flocoumafen was mixed in the ratio 19:1 with breadcrumbs, or carrot pieces. They were used for remnant rodents. The population decline rates were up to 98.82% in the hospital, 98.07% in the hotel. For the third stage, through environment administration especially for food management and rodent proof measures, the population decline rates went up to 100% in the hospital, 99.14% in the hotel. Four months later, the rodent population densities were up to 0.3% in the hospital, 0.85% in the hotel, 13.89% in the chicken farm, respectively. Because of the lack of the second and the third stages, the rodent infestation became very heavy in the chicken farm four months later.