黄河三角洲中华按蚊生态调查

Ecology investigation of anopheles sinensis at Yellow River delta

目的通过开展黄河三角洲不同生态环境中华按蚊监测,探明中华按蚊的生态习性,为防治工作提供生态依据。方法不同的生境采用紫外线灯诱捕法、人帐诱捕法和勺舀法分别对成蚊和幼蚊开始连续性密度监测。结果调查发现,草地积水和水稻田沟渠中幼虫密度较高。成蚊季节消长以7、8月份密度最高。结论中华按蚊在本地不是优势种群,但有明显的季节消长规律,且不同生态环境其发生量不一,以水稻田和草地密度最大。

Objective To monitoring anopheles sinensis in different biogeoeoenosis of yellow river delta and explore the ecological habits, in order to provide scientific basis for control work. Method Continuous density monitoring was carried out on adult and larvae mosquitoes by ultraviolet lamp, mosquito net and dipper. Results The densities of larva were higher in grassland dropsy and paddyfield ditches. The density of adult mosquitoes reached to the highest from June to August. Conclusions Anopheles sinensis was not the dominant species of local place, it showed obviously seasonal growth and decline regularity, and the density of was the highest in grassland dropsy and paddyfield ditches.