Abstract:

Objective To investigate the mosquito species, density, and seasonality in Weishan lakes area for local mosquito and diseases control. Methods The surveillance was carried out from April to October in 2014. The adult mosquito density was monitored using carbon dioxide mosquito lamp and mosquito-oviposition trap. While the larval mosquito density was monitored by spoon method for large bodies of water and pipette method for small volumes of water (in containers). Results In total, 10 972 mosquitoes were captured in Weishan lakes area in 2014. The predominant species were Culex pipiens pallens. accounting for 78.45%, followed by Aedes albopictus and C_x. tritaeniorhynchus; Seasonal fluctuations were indicated with one peak in July. The adult mosquito density was the highest in the barn. The positive rate of mosquito larvae was the highest in residential areas. Conclusion The mosquito population was high in Weishan lakes area. The surveillance findings of mosquito density and its seasonal fluctuation can provide guidance for the prevention and control of mosquitoes and mosquito-borne diseases in local area.

Key words: Mosquito, Species, Density, Seasonal fluctuations

摘要：

目的 了解微山湖区不同生境蚊虫密度、种群分布以及季节消长趋势,为指导当地蚊虫综合防制和虫媒传染病防控提供科学依据。方法 于2014年4-10月在微山湖区进行监测,成蚊密度监测采用CO₂诱蚊灯法;大型水体和小型积水(容器)分别采用勺捕法和吸管法进行幼蚊密度监测;白纹伊蚊专项监测采用诱蚊诱卵器法。结果 2014年4-10月在微山湖区共捕蚊10 972只,其中淡色库蚊占捕蚊总数的78.45%,为优势蚊种;其次为白纹伊蚊和三带喙库蚊;成蚊密度高峰期为7月,幼蚊略早于成蚊;不同生境畜棚蚊密度最高;不同环境幼蚊密度以居民区阳性率最高。结论 微山湖区蚊密度较高,不同生境蚊虫种群分布以及密度消长变化趋势可有效指导当地蚊虫防制和蚊媒疾病的科学防控。

关键词: 蚊虫, 种群, 密度, 季节消长