赤眼蜂在寄主定向和接受行为方面,可利用多种来源于寄主的化学刺激物——利它素,而在寄主栖息地的定向行为中,则利用植物产生的化学刺激物——互利素,周大荣等发现玉米与匍匐型绿豆间作可提高玉米螟赤眼蜂Trichogramma ostriniae亚洲玉米螟Ostrinia furnacalis 卵的寄生率。为明确这一机制,在温室条件下就绿豆(匍匐、直立型)叶片提取液对玉米螟赤眼蜂寄生率的影响进行了初步研究。 Trichogramma can use a variety of chemical stimuli from the host, ritactin, in the host orientation and acceptance behavior, whereas in the habitat of the host Trichogramma, the chemical stimulus, , Zhou Dalong and other found intercropping corn and creeping mung bean Trichogramma ostriniae can increase the Trichogramma ostriniae Asian corn borer Ostrinia furnacalis eggs parasitism. In order to clarify this mechanism, the effects of mung bean (creeping, upright) leaf extract on the parasitism of Trichogramma ostriniae were studied under greenhouse conditions.