【摘要】 【目的】本研究旨在深入了解榆木蠹蛾Holcocerus vicarius(Walker)信息素通讯系统。【方法】在风洞中观察了榆木蠹蛾雄蛾对合成性信息素不同组分及其不同比例及剂量混合物的行为反应。【结果】单组分试验结果表明,仅有Z7-14:Ac能够引起少量雄蛾完成从兴奋到接触诱芯并出现预交尾的全部行为反应,其余4个单组分(E3-14:Ac,Z3E5-14:Ac,E3-14:OH和Z3-14:OH)只能引起雄蛾兴奋,均不能引起雄蛾向性信息素源定向飞行。二元混合物(Z7-14:Ac+E3-14:Ac)明显增加雄蛾完整的性行为反应比例,三元混合物(Z7-14:Ac+E3-14:Ac+Z3E5-14:Ac)比例为10∶4∶4,剂量为1 300μg时有71.7%雄蛾发生预交尾,剂量为1 000μg时有70.3%雄蛾发生预交尾,两者差异不显著(P>0.05)。【结论】榆木蠹蛾风洞行为实验为进一步研究其性信息素相关生物学特性及应用性信息素对榆木蠹蛾进行综合防治奠定了基础。更多还原

【Abstract】 【Aim】This study aims to deeply understand the sex pheromone communication system of Holcocerus vicarius( Walker). 【Methods 】 The behavioral responses of male adults of H vicarius to synthetic sex pheromone components and their mixtures in different ratios and at different dosages were observed in wind tunne. 【Results】The results of single component tests showed that the lures containing only( Z)-7-tetradecenyl acetate( Z7-14: Ac) elicited all steps of behavioral responses of male adults,i. e.,exciting,landing on the lure and exhibiting their hairpencils,while other four single components( E3-14: Ac,Z3E5-14: Ac,E3-14: OH and Z3-14: OH) elicited the male adults exciting only,but not flying to the sex pheromone source. The binary mixture of( E)-3-tetradecenyl acetate( E3-14: Ac) and Z7-14: Ac caused an increase in the intact sexual response proportion of males to synthetic sex pheromone components. When the lures were baited with the ternary mixture including Z7-14: Ac,E3-14: Ac and( Z,E)-3,5-tetradecenyl acetate( Z3E5-14: Ac) in a 10∶ 4∶ 4 ratio at the dosage of 1 300 μg or 1 000μg,they elicited 71. 7% or 70. 3% of males to behave hairpencils,respectively,but no significant difference between them( P > 0. 05). 【Conclusion】Wind tunnel behavioral tests of H. vicarius provide the basis for studying the sex pheromone related biology of H. vicarius and developing comprehensive prevention and control strategies by applying sex pheromone.更多还原