生态学灭鼠法对巩固大型宾馆鼠密度作用研究

目的观察生态学灭鼠法对巩固大型宾馆鼠密度的作用,为今后灭鼠工作提供科学依据。方法选择环境条件基本一致而鼠害较重的大型宾馆4个,先用0.005%溴敌隆玉米毒饵连投6 d统一灭鼠,然后再将4个宾馆随机分成2组,一组为追加生态学灭鼠法,另一组不追加任何灭鼠措施,观察6个月内2组鼠密度的差别,用100格粉板法测定鼠密度,计算灭鼠率。结果4个宾馆采用0.005%溴敌隆玉米毒饵后灭鼠效果分别为96.92%、97.06%、96.82%和97.53%,总灭鼠率为97.12%;在6个月的观察期内,追加生态学灭鼠法的2个宾馆鼠密度回升很慢,一直保持在很低的水平,到6个月时鼠密度比毒饵灭鼠后仅增加了2.97倍。不追加任何灭鼠措施的2个宾馆鼠密度回升很快,毒饵灭鼠后至6个月时鼠密度增加了34.34倍,2组鼠密度相差31.37倍(u=22.24,P<0.01)。结论毒饵灭鼠后追加生态学灭鼠法是一种既安全高效又长期有效巩固灭鼠成果的手段。

Study on the role of ecological approaches to deratization in the maintenance of a low rat density in large hotels

Objective To observe the role of ecological approaches to deratization in keeping the rat density in large hotels as low as possible,providing a scientific basis for future deratization.Methods First,0.005% bromadiolone corn poison bait was laid out for 6 consecutive days in the four large hotels with similar environmental conditions and serious rodent damage.And then the 4 hotels were randomly divided into two groups,of which ecological approaches to deratization were followed in one,with the other used as the control group.S-100 method was used to evaluate the deratization effect by the deratization rate based on the difference in the rodent density between the 2 groups within 6 months.Results The deratization rate of 0.005% bromadiolone corn poison bait for the 4 hotels was 96.92%,97.06%,96.82% and 97.53%,respectively,with the overall deratization rate being 97.12% within the 6 months.By the end of the observation,the rat density of the 2 hotels in the test group increased only by 2.97 compared with that at the time when corn poison bait deratization was completed,while the density of the 2 hotels in the control group increased by 34.34 in the same period of time with a difference of 31.37 between the two groups(u=22.24,P<0.01).Conclusion The deratization effect with poison bait followed by ecological approaches is a highly effective means for safe deratization and prolonged maintenance of the state.