Analysis of substances induced by a tortricid moth oviposition and their use in pest management

网纹小卷蛾Ascogaster reetata Watanabe是茶树害虫--茶树小卷蛾的卵-幼虫寄生蜂。该蛾在茶叶上的产卵可引起茶树叶片的变化，从而刺激雌蜂寻找寄主。我们将分析激发子对茶叶的诱导作用及其机理。在茶叶下表面处理寄主雌蛾的腹部内容物时，发生了诱导，寄生蜂对叶片的反应时间比对照叶片长。对网纹夜蛾的非寄主--亚洲玉米象的腹部内容物进行处理时，其寄生反应低于对照叶片。

Ascogaster reticulata Watanabe is an egg-larval parasitoid of the smaller tea tortrix, Adoxophyes honmai Yasuda (Lepidoptera: Tortricidae) which is a pest of tea plant. Oviposition on a tea leaf by the moth was found to induce the change of tea leaf, which stimulated the host-searching of the female parasitoid. We are going to analyze the elicitor to cause the induction on a tea leaf and the mechanism. When we treat the abdominal content of host female moth on undersurface of tea leaf, induction occurred and the parasitoid responded to the leaf for longer time than control leaf. When we treat the abdominal content of Ostrinia furnacalis, the non-host for A. reticulata, the parasitoid response was lower than control leaf.