Developmental and fundamental studies for field application of vector of deseases various control methods without using insecticides

由于病媒生物对杀虫剂的抗药性和对单一靶标生物的毒副作用，世界各国在病媒生物控制方面做了大量的工作。因此，环境污染不仅对人类，而且对世界上所有的生物都构成了危害。然而，该病在发展中国家，特别是热带地区仍然是高度流行的。在这种情况下，目前的工作者开始开发其他防治方法，如昆虫生长调节剂、生理生态和遗传控制方法、媒介昆虫的翅音引诱及其生态生理特性、利用食肉鱼类防治媒介幼虫等。(1)在实验室实验中，即使是同一个物种，在兄弟群体之间也存在着几个不同的类群。它们分别以不同的声音频率响应。(2)田间试验表明，Cx. pipiens和Cx.三带喙龙对复合声的反应除了对它们的反应声外，对嗡嗡声的反应也更大。利用这一特性，在CO_2气体和动物气味的刺激下，用干冰和仓鼠的组合笼诱捕了大量的媒介生物。将该诱捕器应用于曼氏蚊的繁殖现场。三带喙线虫和按蚊是疟疾的传播媒介。所有这些都取得了成功的结果。该方法也可用于病媒生物的监测。这些方法的集成控制正在进行中。

A number of the efforts have been made to develop control methods of vectors of deseaes in the world due to insecicide resistance of the target vectors andside effects to thenone-target organisms. Thus the environmental polutions are giving hazard situation not only to human being but also to all the organisms in the world. However, the deseases are still hyghly endemic in the developping countries, espectially tropical areas. In this situation the present workers embarked to develop other control methods, such as isect grouth regurator, physio-ecological and genetic control method; wingsound attraction of the vectors and their ecological physiological characters, and application of carnivorous fish for vector larvae.(1) In the laboratory experiment even the same species there exist several different taxa among sibling groups. They defferetly respond by sound frequencies respectively.(2) In field test, Cx. pipiens and Cx. tritaenirhynchus respond to combined sound more to droning sound as well as their responding sound. This character was applied to the trapping huge numbers of these vectors with combined uscage of dry ice and a hamster due to stimulation by CO_2 gas and animal scent. This kind of trap was applied for the breeding site of Mansonia, Cx. tritaeniorhynchus and anopheline vector of malaria in their endemic areas. All of them gave sucessfull results. This method can also be utilize for the monitouring of the vectors. the integration conrol of these method is under way.