1 Naval Medical Research Institute, 880 Xiangyin Road, Shanghai, 200433, China.
J Insect Sci. 2013;13:127. doi: 10.1673/031.013.12701.
The value of using plant volatiles as attractants for trapping and spatial repellents to protect hosts against mosquitoes has been widely recognized. The current study characterized behavioral responses of Aedes albopictus (Skuse) (Diptera: Culicidae) to different concentrations, ranging from 6 to 96%, of several common floral odorous compounds, including linalool, geraniol, citronellal, eugenol, anisaldehyde, and citral, using a wind tunnel olfactometer system. The results indicated that female mosquitoes reacted differently to different concentrations of the tested compounds, and the reactions also were different when those chemicals were tested alone or in the presence of human host odor. When tested alone, anisaldehyde was attractive at all tested concentrations, eugenol was attractive only at concentrations of 48-96%, while citronellal, linalool, citral, and geraniol were attractive at lower concentrations and repellent at higher concentrations. When tested in the presence of a human host, all compounds except for anisaldehyde at all tested concentrations showed host-seeking inhibition to certain degrees. Based on the results, it was concluded that anisaldehyde was effective in attracting Ae. albopictus when used alone but could also remarkably inhibit the host-seeking ability at a concentration of 96%, while citral, geraniol, linalool, citronellal, and eugenol are suitable as spatial repellents.
利用植物挥发物作为诱捕剂和空间驱避剂来保护宿主免受蚊子侵害的价值已得到广泛认可。本研究使用风洞嗅觉仪系统，对 6%至 96%等不同浓度的几种常见花香化合物，包括芳樟醇、香叶醇、香茅醛、丁子香酚、茴香醛和柠檬醛，对白纹伊蚊（Skuse）（双翅目：蚊科）的行为反应进行了特征描述。结果表明，雌性蚊子对不同浓度的测试化合物有不同的反应，当单独测试或与人体宿主气味一起测试时，反应也不同。单独测试时，茴香醛在所有测试浓度下均具有吸引力，丁子香酚仅在 48%至 96%的浓度下具有吸引力，而香茅醛、芳樟醇、柠檬醛和香叶醇在较低浓度下具有吸引力，在较高浓度下具有驱避性。当与人体宿主一起测试时，除了所有测试浓度下的茴香醛外，所有化合物都表现出对宿主的一定程度的寻宿主抑制。基于这些结果，可以得出结论，单独使用时，茴香醛对白纹伊蚊有效，但在 96%的浓度下也能显著抑制其寻宿主能力，而柠檬醛、香叶醇、芳樟醇、香茅醛和丁子香酚适合作为空间驱避剂。
