香菜对桃蚜寄主植物选择行为的影响

Effects of Corianfer in Host Plants Selection of Myzus persicae

利用Y型嗅觉仪在室内条件下测定9种寄主植物挥发物在空气和香菜2种对照下对桃蚜成虫选择行为的影响,以阐明香菜挥发性物质对桃蚜的趋避作用。结果表明:空气对照下,香菜挥发性气味对有翅蚜和无翅蚜均表现显著趋避作用,芹菜对无翅蚜有显著趋避作用(P<0.05)、辣椒则对无翅蚜有极显著趋避作用(P<0.01)。香菜对照下,油菜、豆角对2种虫态均表现极显著吸引作用(P<0.01),白菜、黄瓜、芹菜、茄子、西红柿对有翅成蚜起到显著吸引作用(P<0.05),茼蒿则没有明显的趋性反应。

To explicit the role of volatiles in excluding Myzus persicae, the effects of nine plant odour sources volatiles with both coriander volatile odor and control on choice response of M. persicae was tested in detail with a Y- tube olfactometer in laboratory. The result showed that coriander volatile odor excluded M. persicae whether winged or not, celery odor excluded wingless M. persicae （P〈0.05）, pepper odor excluded winged M. persicae （P〈0.01）. Compare with coriander volatile odor, beans and rapeseed volatile odor had significant attraction to M. persicae whether winged or not （P〈0.01）. Cabbage, cucumber, celery, eggplant, tomatoes odor attracted winged M. persicae （P〈0.05）, garden chrysanthemum had no obvious response.