特殊环境杀它仗灭鼠实验研究

目的：验证杀它仗在特殊环境的灭鼠效果，探索适当的应用技术。方法：常规灭鼠试验方法。以鼠迹法测定鼠密度，据此计算灭效。结果：特殊环境杀它仗灭鼠试验分３个阶段：第１阶段用杀它仗蜡块、切麦等成品毒饵，在医院、饭店、养鸡场分别取得８７．７４％、９１．３９％、８６．６７％的灭效；第２阶段用杀它仗母粉临时配制的毒水及水果、面包渣、玉米面等毒饵，医院、饭店的灭效进一步提高到９８．８２％、９８．０７％。第３阶段在医院、饭店采取环境改造、改善卫生状况、防鼠等措施，灭效分别达到１００％、９９．１４％。４个月后跟踪调查，医院、饭店、养鸡场的鼠密度分别回升到０．３８％、０．８５％、１３．８９％。养鸡场由于缺少第２、３阶段，４个月后鼠害已非常严重。结论：杀它仗对鼠类有良好的适口性，在特殊环境灭鼠效果良好；采取环境治理与防鼠等配套措施，可增强灭效，延缓鼠类种群的恢复。

Field Trials with Stratagem against Commensal Rodents in Special Environments

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 m 2. 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.