白星花金龟成虫对10种寄主挥发物的嗅觉行为反应

Olfactory Behavioral Responses of Potosia brevitarsis Lewis to 10 Kinds of Host Volatiles

【目的】筛选出对白星花金龟Potosia brevitarsis Lewis成虫具有引诱活性的挥发物。【方法】使用Y-型嗅觉仪测定了白星花金龟雌、雄成虫对10种寄主挥发物的嗅觉行为反应。【结果】白星花金龟对不同挥发物的嗅觉行为反应具有显著差异,且雌、雄成虫对同种挥发物的嗅觉行为反应存在差异。白星花金龟雌成虫对壬醛、芳樟醇、1-辛烯-3-醇及正己醇具有较强的正趋性;雄成虫则对芳樟醇、1-辛烯-3-醇、正己醇、反-2-己烯醇及正己醛呈现正趋性。【结论】芳樟醇、1-辛烯-3-醇及正己醇可以作为白星花金龟植物源引诱剂的组成部分。

【Objective】In order to screen out volatiles that have attractive properties to the P.brevitarsis adult.【Method】The olfactory responses of female and male adults to 10 host volatiles were determined by using"Y"olfactometer.【Result】There was a significant difference in behavioral responses to different volatiles in the adult P.brevitarsis,and the male and female adult olfactory responses of the same kind volatiles had some differences.P.brevitarsis female had strong positive tropism for furfural,linalool,1-octene-3 alcohol and hexanol;and the P.brevitarsis male exhibited positive tropism for linalool,1-octen-3-ol,hexanol,E-2-hexenol and hexanal.【Conclusion】Linalool,1-octen-3-ol,and hexanol may be the composition of the plant-driven attractant of P.brevitarsis.