关键词: 抗凝血灭鼠剂, 双氯敌鼠铵, 冷库, 褐家鼠, 防治

Abstract: Objective To study the control effect of dichlorophacinon ammonium, a new type of anticoagulant rodenticide, to Rattus norvegicus in the special environment. Methods 0.5% salt as attractant, adding to 0.005% dichlorophacinon ammoniumthe mixed poisonous baits including 95% wheat and 5% corn, and kill rodents with one-off application method. Evaluate the control efficacy with rodent trace method. Investigate the population density of R.norvegicust the second month after treatment, and add up six times. Results The rodent density was 55.47% before treatment, while it decreased to 0.78% and 0% after traeatment for 27 d and 40 d, respectively. The rodent density was zero from the second month to seventh month after treatment, and the control effect reached 100%. Conclusion The dichlorophacinon ammonium had the high toxicity and good palatability to R.norvegicus, which had good control efficacy in the special environment.