白纹伊蚊幼虫期经香茅液处理后成蚊刺叮选择行为的变化  

Change of biting behavior of the mosquito Aedes albopictus reared in citronella-treated water

作　　者：李志强[1] 肖维良[1] 钟俊鸿[1] 曾文慧[1] 阴伟雄[2] 刘瑞娴[1] 

机构地区：[1]广东省昆虫研究所,广州510260 [2]广东省疾病预防控制中心,广州510300

出　　处：《环境昆虫学报》2010年第2期225-229,共5页Journal of Environmental Entomology

基　　金：广东省自然科学基金项目(8451026001000224)

摘　　要：植物性驱蚊剂的开发研究受到了极大的关注,但昆虫的习惯化行为反应是制约有效植物性驱蚊剂发展的障碍之一。为了了解登革热重要媒介昆虫白纹伊蚊Aedes albopictus对植物性驱避剂的行为机制,本研究在分析了香茅油溶液对幼虫存活影响和对成蚊驱避作用的基础上,将白纹伊蚊幼虫于经稀释的香茅Cymbopogon nardus油溶液中饲养,然后通过局部涂肤的方法,测定白纹伊蚊雌蚊的刺叮选择行为变化。结果显示,香茅油对成蚊具有显著的驱避效果,但是幼虫经香茅油溶液饲养后,尽管仍具有显著的驱避作用,但是44.5mg/L和178mg/L的低浓度香茅油对白纹伊蚊的驱避作用发生了明显的减弱。说明幼虫期对精油溶液的经历,可诱导白纹伊蚊刺叮选择行为的习惯化反应,从而降低植物性驱避剂的驱避效果。Botanical repellents against blood-feeding mosquitoes have received much attention due to their diminished threat to the environment or to human health, but insect habituation is one of the problems in developing efficacious repellents. In order to better understand the behavioral mechanisms of dengue fever important vector, Aedes albopictus, towards repellents, the changes of biting behavior of Ae. albopictus reared in citronella-treated water were observed. Based on the analyses of survival rates of larvae in citronella oil solutions and repellency effect of citronella oil solutions against the biting behavior of Ae. albopictus, the results showed that the citronella oil exhibited remarkable repellent activity against Ae. albopictus reared both in citronella-treated water and in untreated water, but those reared in citronella-treated water were less repellent at low concentrations （44.5 mg/L and 178 mg/L）. Induced habitation resulting from the experience can lead to a change of subsequent biting behavior of Ae. Albopictus, which also affect the surveillance and control of dengue vector.

关 键 词：白纹伊蚊 香茅精油 习惯化反应 刺叮 蚊虫行为 

分 类 号：Q968.1[生物学—昆虫学] R384.1[医药卫生—医学寄生虫学]