2013年北京市密云县病媒生物密度监测结果分析

Analysis on surveillance results for vector density in Miyun county in 2013,Beijing

目的了解北京市密云县病媒生物密度情况,为病媒生物防制提供科学依据。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,二氧化碳诱蚊灯法监测成蚊密度。结果鼠类阳性率为0.25%,优势种为褐家鼠和小家鼠;蟑螂密度0.029只/(张·夜),优势种为德国小蠊;蝇类平均密度2.18只/(笼·天),优势种为麻蝇;蚊密度为1.07只/(灯·小时),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,辅以物理防制手段,必要时采用化学防制的综合防制措施。

Objective To understand the density of the vector organism in M iyun county, provide the scientific basis for prevention and control of the vectors organism. Methods The night trapping and cockroach paste were conducted to monitor the density of rats and cockroaches, the CO2 light trapping and cage trapping were conducted to monitor the density of mosquitoes andflies respectively. Results The density of rats was O. 25%. Rattus norvegieus was the dominant species. The density of cockroaches was 0. 029（/night＂ pages）. Blattella germanica was the dominant species. Flies density index was 2. 18/cage. The dominant species was Flesh fly. The average density index of mosquitoes was 1.07/（ light, hour）. Culex pipiens pallens was the dominant species. Conclusion The density indexes of four vector organism were in low level, the dominant species were not changed. Basing on characteristics of vector organisms＇ breeding, perched habits and seasonal swing in growth, the strategy of comprehensive prevention including environmental management accompanied by physical means and chemical control when necessary should be conducted to reduce their density.