Abstract: [Objective] This research aims to clarify the role of behavioral responses from volatiles rape to Hippodamia variegata (Goeze).[Method]The behavioral responses of the lady beetle adults to volatiles from rape were observed with a Y-tube olfactometer.Rape leaves were divided into three treatments: CK (intact leaves), aphid damage treatment and analog aphid damage treatment.In each treatment, 100 and 500 aphids were respectively connected and rape leaves by the three treatments went through determination by two-two combination.[Result]When aphid damage treatment and analog aphid damage treatment were respectively determined against CK, the ratios were significantly higher than those of the CK.The more number of aphids, the more obvious the attraction would be.When determining the aphid injury treatment and analog aphid injury treatment, the difference between the two was not significant, but they were significantly higher than those without selection, which showed that rape leaves after treating aphids, whether they had aphids or not, could lure Hippodamia variegate (Goeze).[Conclusion]The experiments showed that aphid infested induced volatiles plays an important role in the behavioral responses of Hippodamia variegate (Goeze).

摘要： [目的]研究不同危害处理油菜其叶片挥发物对多异瓢虫行为反应的作用.[方法]采用"Y"型嗅觉仪测定不同处理油菜叶片挥发物对多异瓢虫成虫的行为反应.油菜叶片共分3个处理:对照(健康叶片)、蚜虫危害、模拟蚜虫损伤,各处理分别接蚜虫100和500头,将3种处理油菜叶片两两组合进行测定.[结果]蚜虫危害和模拟蚜虫损伤处理分别与对照组合测定时,选择蚜虫危害和模拟蚜虫损伤处理的比例均显著高于对照,且处理蚜虫的数量越大,引诱作用越明显.蚜虫危害和模拟蚜虫损伤处理组合测定时,二者间选择比例差异不显著,均显著高于不做选择的比例,经过蚜虫为害处理的油菜叶片,是否有蚜虫的存在均能引诱多异瓢虫.[结论]经过蚜虫为害油菜叶片诱导的挥发性物质在多异瓢虫行为反应中发挥重要作用.