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目的了解北京市密云县病媒生物密度情况,为消灭病媒提供科学依据。方法采用夹夜法监测鼠密度,粘捕法监测蜚蠊密度,笼诱法监测蝇密度,诱蚊灯法监测成蚊密度。结果老鼠阳性率为0.17%,优势种为褐家鼠;蟑螂密度指数0.034只/(张.夜),优势种为德国小蠊;苍蝇平均密度2.64只/笼,优势种为麻蝇;蚊年平均蚊密度为0.52只/(灯.h),优势种为淡色库蚊。结论 4种病媒生物密度处于较低水平,地方优势种群变化不大,要降低其密度,应根据它们的孳生、栖息习性及其季节消长特点,采取以环境治理为主的综合性防治措施。
Objective To understand the density of vectors in Miyun County, Beijing, and provide a scientific basis for the elimination of vectors. Methods The rat density was monitored by the method of catgut nocturnal, the density of cockroaches was monitored by stick catching method, the density of flies was monitored by cage induction method, and the density of mosquitoes was monitored by mosquito lamp method. Results The positive rate of mice was 0.17%, and the dominant species was Rattus norvegicus. The density index of cockroaches was 0.034 / night and the dominant species was German cockroach. The average density of flies was 2.64 / cage, Mosquito density of 0.52 / (lamp. H), the dominant species Culex pipiens pallens. Conclusion The density of four vectors is at a low level, and the population of local dominant species has little change. To reduce its density, we should adopt a comprehensive prevention and control measures based on environmental management according to their breeding, habitat and their seasonal growth and decline.