小菜蛾对蔬菜气味的定向行为

THE ORIENTATION OF PLUTELLA XYLOSTELLA TO VEGETABLE VOLATILES

采用“Y”型管嗅觉仪 ,在实验室条件下 ,对十字花科蔬菜 -小菜蛾 -小菜蛾绒茧蜂系统中 ,害虫和寄生蜂对挥发物的定向行为进行了初步的研究。结果表明蔬菜的挥发性气味对小菜蛾有明显的引诱作用 ,在反应强度上 ,雌蛾明显高于雄蛾 ,且不同的蔬菜引诱效果之间也存在差异。触角切除实验证明了 。

The orientation of diamondback moth and Cotesia plutella to the vegetable volatiles was investigated using Y-tube olfactory in the lab. The results demonstrated that the diamondback moth was attracted by the vegetable volatiles, female adults were attracted more than male adults, and there existed difference of the attraction from different vegetable species. The experiment of the diamondback moth with the antennae excised in Y-tube olfactory verified that the antennae played an important role in search of the host plant by detecting the odors from vegetable.