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目的观察热烟雾喷洒技术现场控制白纹伊蚊密度的效果,为蚊媒传染病的媒介应急控制提供技术储备。方法采用10%右旋苯醚菊酯水乳剂和10.4%氯菊酯·S-生物烯丙菊酯水乳剂进行热烟雾喷洒,人诱停落法监测蚊虫密度,观察施药前后试验区和对照区的白纹伊蚊密度变化。结果人诱停落指数结果显示,10%右旋苯醚菊酯水乳剂和10.4%氯菊酯·S-生物烯丙菊酯水乳剂的0.5 h蚊虫平均相对密度下降率分别达到97.4%和91.6%,24 h平均相对密度下降率分别为47.5%和40.1%。结论热烟雾喷洒可快速地降低外环境白纹伊蚊密度,为媒介伊蚊的应急控制提供技术储备。
Objective To observe the effect of hot smoke spraying on site to control the density of Aedes albopictus and to provide technical reserve for the media emergency control of mosquito-borne infectious diseases. Methods The spray of hot smoke was carried out by using 10% D-phenothrin aqueous emulsion and 10.4% permethrin · S-biosmethion water emulsion. The mosquito density was monitored by the method of luring people and stopping. The test area and control before and after spraying The Aedes albopictus density changes in the area. The results of the person-induced pause index showed that the average relative densities of 0.5% mosquitoes of 10% distythrin water emulsion and 10.4% permethrin-S-allethrin emulsion reached 97.4% and 91.6% respectively %, 24 h average relative density decreased 47.5% and 40.1% respectively. Conclusion Thermal fog spraying can rapidly reduce the density of Aedes albopictus in the external environment and provide technical reserve for the emergency control of Aedes albopictus.