小菜蛾对金腰箭挥发油的触角电位反应及趋性

摘要

采用触角电位仪测定了小菜蛾对金腰箭挥发油的触角电位反应.结果表明,小菜蛾成虫对金腆箭挥发油的触角电位反应强度与挥发油剂量成正比.四臂嗅觉仪试验进一步表明,金腰箭挥发油对小菜蛾成虫起到驱避作用.%The electroantennogram (EAG) responses of Plutella xylostella L. to volatiles of Synedrella nodiflora (L.) Gaertn were tested. The results showed that, with the concentration of plant volatiles increasing, their EAG responses to plant volatiles became stronger. Four-arm olfactometer experiments further showed that the plant volatiles of S. nodiflora played a repellent effect on P. xylostella.