3种迷迭香挥发物组分对桃蚜及桃蚜茧蜂的趋性影响

Behavioral Responses of an Aphid and its Wasp Parasitoid to 3 Kinds Standard Components Volatiles of Rosemary Plants (Rosmarinus officinalis)

摘要: 利用“Y”型嗅觉仪法，测定迷迭香植物挥发物的主要组分α−蒎烯、β−月桂烯、β−石竹烯，分析其对桃蚜及其天敌桃蚜茧蜂的趋性行为选择的影响。结果表明：α−蒎烯达到一定剂量后对桃蚜及桃蚜茧蜂都表现出显著的驱避反应，β−月桂烯达到一定剂量后对桃蚜及桃蚜茧蜂都表现出显著地引诱作用，β−石竹烯达到一定剂量后则对桃蚜茧蜂有显著引诱作用，对桃蚜无生物活性。

Abstract: Y-tube olfactometer was used to conduct the orientation responses of Myzus persicae(Sulzer) and its wasp parasitoid Diaeretiella rapae(M'Intosh) to the main three kinds of volatiles(α-Pinene、β-Myrcene、β-Caryophyllene) of the woody perennial herb Rosemary(Rosmarinus officinalis, family Lamiaceae). We found that from the different doses tested, volatiles emitted from α-Pinene showed obviously repellent effects onto Myzus persicae and Diaeretiella rapae. but obviously attracted by β-Myrcene. β-Caryophyllene had no biological activities to Myzus persicae,but showed obviously attracted effects onto Diaeretiella rapae .