关键词: 白纹伊蚊, 种群, 密度

Abstract: Objective To know the distributtion and density of Aedes albopictus in Baoji, Shanxi province. Methods Mosquito lavae were investigated by breeding sites surveying method using container index(CI), house index(HI) and breteau index(BI), adults were collected by mosq-ovitrap, human biting catch, human-baited net trap, light-trap methods for density. Results At 7 kinds of ecological biotopes in Baoji urban areas including 642 various water-holding container, 48.75% was larvae positive, with CI, HI and BI 52.36, 58.12 and 71.73 respectively. For adults survey, 625 mosq-ovitrap were used in successive three months (July to September), the average positive rate was 12.52%, and all the collected mosquitoes were Ae.albopictus. For total 24 times of human-baited net trapping at 17:00 to 19:00, the average mosquitos density was 11.17 mosquitos per human in 1h, with 76.12% Ae.albopictus in most. For light-trap, total 16 lights(times) were investigated and most of mosquitoes captured were Culex pipiens pallens(77.19%), the densities are 1.09 and 0.89 per light-trap in 1h for August and September separately Ae.albopictus was 4.35%. Conclusion Ae.albopictus was ubiquitous in Baoji. Three methods all showed that Ae.albopictus was common species of mosquitoes, with a peak in August, with a very high density, so we should pay more attention to Ae.albopictus control.