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三带喙库蚊不仅是乙型脑炎首要媒介,而且是全国优势蚊种之一。但它的虫源规律不清,有所谓“来无影,去无踪”之说,其原因可能是一种“候虫”有关WHO媒介生态与控制研究中心(1976)根据在南朝鲜1968～1973连续5年的全面越冬调查,以及汉城西郊15年的观察,均无越冬三带喙库蚊发现,由此,首次提出我国东北三省和汉城地区,三带喙库蚊存在着从邻近国家和地区外来入迁的可能性,并认为乙脑病毒有此带入可能。Hayashi等(1978)也提出存在三带喙库蚊携带乙脑病毒从热带或亚热带飞入日本的可能性。我们参照张孝义(1980)等迁飞昆虫的迁飞规律,于1982年开始进行三带喙库蚊候虫可能性研究,现将取得的一些进展报告如下。
Culex tritaeniorhynchus is not only the primary vector of Japanese encephalitis, but also one of the dominant mosquito species in the country. However, its origin is unclear, and there is a reason why there may be no “disappearing or disappearing.” The reason may be a kind of “waiting for worms.” The WHO Center for Media Ecology and Control (1976) Southern Korea from 1968 to 1973 for five consecutive years of overwintering survey, and the observation of 15 years in the western suburbs of Seoul, there is no winter Culex tritaeniorhynchus were found, therefore, for the first time put forward the three northeastern provinces of China and Seoul, Culex tritaeniorhynchus there The possibility of immigration from neighboring countries and regions and believe that JE virus may be brought into this. Hayashi et al. (1978) also proposed the possibility of the presence of JE-carrying mosquitoes carrying the JE virus from the tropics or sub-tropics into Japan. With reference to the migration rules of migratory insects such as Zhang Xiaoyi (1980), we started the study on the possibility of mosquito-eating insects in the tributary of the genus Curtis in 1982. Some of the progress made are as follows.