Mboera L E, Knols B G, Takken W, Huisman P W
Laboratory of Entomology, Wageningen Agricultural University, The Netherlands.
J Vector Ecol. 1998 Dec;23(2):107-13.
Olfactory responses of individual female (n = 1010) Culex quinquefasciatus Say (Diptera: Culicidae) to various odor stimuli were studied in a dual-choice olfactometer. Responses (i.e., the number of mosquitoes entering either of both olfactometer ports) were studied towards clean conditioned air (control), human foot skin emanations (collected on worn stockings), carbon dioxide (4.5% in clean air), moistened air, and various combinations thereof. Skin emanations were significantly more attractive (chi 2 = 23.0, p < 0.001) than clean stockings (control). The mosquito was also significantly more attracted (chi 2 = 7.7, p < 0.01) to skin emanations than to a clean stocking to which water (an equivalent of that absorbed by a worn stocking) was added. A moistened (1 g H2O) clean stocking, however, was slightly more attractive than a dry stocking (chi 2 = 6, p < 0.025). Carbon dioxide (4.5%) did not elicit higher responses than clean air, and no synergistic effect was observed in combination with skin emanations. With the aim of developing an odor-baited trap, our results indicate that Cx. quinquefasciatus responds well to human body odors which can be collected on polyamide materials.
在双选嗅觉仪中研究了1010只致倦库蚊雌性个体对各种气味刺激的嗅觉反应。研究了对清洁的经处理空气（对照）、人足部皮肤散发物（收集于穿用过的长袜上）、二氧化碳（在清洁空气中含量为4.5%）、湿润空气及其各种组合的反应（即进入嗅觉仪两个端口中任意一个端口的蚊子数量）。皮肤散发物比清洁长袜（对照）更具吸引力（卡方检验χ2 = 23.0，p < 0.001）。与添加了水（相当于穿用过的长袜吸收的水量）的清洁长袜相比，蚊子对皮肤散发物的吸引力也显著更高（卡方检验χ2 = 7.7，p < 0.01）。然而，湿润（1克水）的清洁长袜比干燥长袜略具吸引力（卡方检验χ2 = 6，p < 0.025）。4.5%的二氧化碳引发的反应不比清洁空气高，并且与皮肤散发物组合时未观察到协同效应。为了开发一种气味诱捕器，我们的结果表明致倦库蚊对可收集在聚酰胺材料上的人体气味反应良好。
