乙酸叶醇酯对梨小食心虫性信息素的增效作用

(Z)- 3- hexenyl acetate synergizes the response of oriental fruit moth,Grapholita molesta(Busck)(Lepidoptera: Tortricidae) to female sex pheromone

【目的】明确植物寄主挥发物对梨小食心虫性信息素的增效作用。【方法】将不同剂量的乙酸叶醇酯[(Z)-3-hexenyl acetate]制成增效诱芯或直接滴加到梨小食心虫性信息素诱芯,通过对比田间诱蛾量,比较不同处理诱芯的诱蛾效果和诱蛾动态。【结果】乙酸叶醇酯单独使用不能诱捕到梨小食心虫,直接滴加到性信息素诱芯也不能提高其诱蛾效果;30μg的乙酸叶醇酯制成的增效诱芯能显著提高性信息素对梨小食心虫的诱捕能力。【结论】乙酸叶醇酯可以作为性信息素增效剂,能显著的提高性信息素对梨小食心虫的诱捕效果和反映田间发生动态。

【Objective】To determine whether host-plant volatiles could synergize the female sex phero-mone of oriental fruit moth,Grapholita molesta(Busck).【Methods】The effects of host-plant volatiles onmale G. molesta response to sex pheromone-baited trap were studied in pear orchard. The volatiles com-pounds,(Z)-3-hexenyl acetate combined with synthetic sex pheromone lure of G. molesta in traps wastested.【Results】The results showed,the most male moths were captured in traps baited with the phero-mone lure combined with the dose of 30 μg(Z)-3-hexenyl acetate,while males were not captured in trapsbaited only with(Z)-3-hexenyl acetate.【Conclusion】It appeared that(Z)-3-hexenyl acetate could act assex pheromone synergist to enhance the male G. molesta attraction in pheromone traps.