Effects of host-food plant species on parasitization rates of Mythimna separata (Lepidoptera: Noctuidae) by a parasitoid, Cotesia kariyai (Hymenoptera: Braconidae)
Effects of host-food plant species on parasitization rates of Mythimna separata (Lepidoptera: Noctuidae) by a parasitoid, Cotesia kariyai (Hymenoptera: Braconidae)
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寄主-食物植物物种对寄生蜂 Cotesia kariyai（膜翅目：茧蜂科）对 Mythimna separata（鳞翅目：夜蛾科）寄生率的影响
DOI：
10.1303/aez.2000.131
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发表时间：
2000
影响因子：
1.3
通讯作者：
S. Yano
中科院分区：
文献类型：
--
作者：
Chiaki Fujiwara;J. Takabayashi;S. Yano
在气候室中测定了粘虫对玉米、菜豆和萝卜的寄生率。寄生蜂对玉米的寄生率为玉米>菜豆>日本萝卜。在笼子里，C。kariyai有更大的嗅觉反应叶片（玉米，菜豆，日本萝卜）感染的主机幼虫比未感染的叶片。当我们用成对的植物物种比较被侵染的叶子时，胡蜂表现出如下顺序的偏好：玉米>菜豆>日本萝卜。从GC-MS分析中，我们发现定性和定量的差异，从三种植物的侵染叶挥发物的混合物。这种差异被认为是影响寄生率的因素之一。
We measured the parasitization rates of Mythimna separata by a parasitoid, Cotesia kariyai, in a climate room on one species each of corn plant, kidney bean and Japanese radish plant. The trend of parasitization by wasps was corn>kidney bean>Japanese radish. In a cage, C. kariyai had greater olfactory responses to leaves (of corn, kidney bean, and Japanese radish) infested by the host larvae than to uninfested leaves. When we compared infested leaves using pairs of plant species, the wasps showed preference in this order: corn>kidney bean>Japanese radish. From GC-MS analysis, we found qualitative and quantitative differences in the blend of volatiles emitted from infested leaves of the three plant species. Such differences were considered to be one of the factors affecting the parasitization rates.