Mboera L E, Takken W, Sambu E Z
National Institute for Medical Research, Ubwari Field Station, PO Box 81, Muheza, Tanzania.
Bull Entomol Res. 2000 Apr;90(2):155-9. doi: 10.1017/s0007485300000262.
The responses of Culex quinquefasciatus Say to traps baited with carbon dioxide, 1-octen-3-ol, acetone, butyric acid and human foot odour were studied in the field in Muheza, north-east Tanzania using Counterflow Geometry (CFG) and Centers for Disease Control (CDC) traps. It was found that significantly more C. quinquefasciatus responded to foot odour collected on nylon stockings than to clean nylon stockings (P < 0.05). Significantly more mosquitoes were caught in a CFG trap baited with carbon dioxide than in traps with either human foot odour, acetone or butyric acid. It was also found that in an outdoor situation a carbon dioxide baited CDC unlit trap collected over 12 times more C. quinquefasciatus than an unbaited CDC unlit trap and nine times more mosquitoes than CDC traps baited with 1-octen-3-ol alone (P < 0.05). The number of mosquitoes caught in a CDC trap baited with 1-octen-3-ol did not differ significantly from that of the unbaited CDC trap (P > 0.05). These results indicate that the Afrotropical C. quinquefasciatus respond significantly better to traps baited with carbon dioxide than to either octenol, acetone or butyric acid, and that human foot odour contains stimuli to which C. quinquefasciatus is attracted under field conditions.
在坦桑尼亚东北部穆赫扎的野外，使用逆流几何（CFG）诱捕器和疾病控制中心（CDC）诱捕器，研究了致倦库蚊对用二氧化碳、1-辛烯-3-醇、丙酮、丁酸和人脚气味诱饵诱捕器的反应。结果发现，与干净的尼龙长袜相比，致倦库蚊对尼龙长袜收集的脚气味反应明显更多（P < 0.05）。用二氧化碳诱饵的CFG诱捕器捕获的蚊子明显多于用人脚气味、丙酮或丁酸诱饵的诱捕器。还发现，在室外环境中，用二氧化碳诱饵的未点燃的CDC诱捕器收集的致倦库蚊比未诱饵的未点燃的CDC诱捕器多12倍以上，比仅用1-辛烯-3-醇诱饵的CDC诱捕器多9倍（P < 0.05）。用1-辛烯-3-醇诱饵的CDC诱捕器捕获的蚊子数量与未诱饵的CDC诱捕器没有显著差异（P > 0.05）。这些结果表明，非洲热带地区的致倦库蚊对用二氧化碳诱饵的诱捕器的反应明显优于对辛烯醇、丙酮或丁酸诱饵的诱捕器，并且人脚气味含有在野外条件下致倦库蚊会被吸引的刺激物。
