福州市区蚊虫孳生习性调查分析

THE SURVEY ON THE HABITS OF MOSQUITOES IN FUZHOU CITY

目的:探讨福州城区蚊虫孳生习性与分布现状。方法:调查不同环境孳生地种类与分布,捕捞幼虫计数密度（条/勺）,以人工小时诱捕蚊数计算刺叮率（只/h.m）。结果:调查各类水体 33种 16257处,发现阳性水体32种45522处,阳性率27.8％。建筑工地、高层建筑地下层积水池、开放式排水沟和下水道口等环境积水是城区致倦库蚊的主要孳生环境,建筑工地积水池最高幼虫密度1065～2342条/勺,成蚊刺叮率141.5只/h.m,是普通居民区的16.2倍。白纹伊蚊的孳生环境多达28种,主要为建筑工地和高层建筑地下层水泥池、阳台积水和水缸、桶类、轮胎等容器型积水。结论:城市蚊虫孳生环境与50～60年代明显不同,建筑工地、高层建筑地下层、阳台等建筑类积水和花圃蓄水缸成为现代都市蚊虫重要的孳生环境。

Aim: to reveal the distribution and habits of mosquitoes at Fuzhou City. Metholds: The breeding were investigted in various environments, The density was counted in larvae/poon( 500ml) and the rates of bitting in female/m. h caught in night. Results: Larvae in 32 skinds 4522 spots were found in breeding , The rate positive was 27. 8%. It is the significant breeding for Culex quiquefasciatus in the constructing sites, undergroud of hight building for Culex quiquefasciatus in the constructing sites, underground of hight building , drains and sewers. The densitier of larvae was 1065-2342/poon. The biting rate was 141. 5/m. h in the contructing sites, it is 16. 2 times in the residences. Mainly breeding for Aedes albopictus are in the breeding as the pools at the constructing, saving water on the balcony of roof, jars, buckts, tyrs ect. Conclusion: The breeding take place changed in urban, It was the significant breeding in the pools at the contructing sites and the underground of hight building, saving water on the balcony of roof, storeing water jars at the flower nursery including on the roof at urban area.