中文摘要：

在植物-植食性昆虫-寄生蜂三级营养关系链中，寄生蜂的行为常常受到其他两营养级的作用。对于寄生蜂而言，成功定位寄主是其发展种群的重要环节，在这个过程中，寄主昆虫的信息化合物和植物的信息化合物或两者的复合信息物质是寄生蜂搜寻寄主的重要线索，发掘这类信息物质并将其应用于害虫的生物防治体系，是当今害虫综合治理的一个重要举措。本文较全面地综述了化学信息物质在植物-植食性昆虫-寄生蜂三级营养关系中的信息调控及在寄生蜂保护利用中的作用，并对该领域今后的研究方向阐述了观点。

英文摘要：

In three levels of trophic relationships of plant-herbivore-natural enemy, parasmc wasps were often subject to being affected by the other two trophic levels. Locating their host insects successfully was very important for parasitic wasps to develop population, in which the semiochemicals from host insects and host plants or mixed semio- chemicals from the other two trophic levels play an important role in searching and locating the host insects of para- sitic wasps. Based on the theories mentioned above, it is necessary to explore these semiochemicals and apply them in biological control programs to regulate target pest insects. In this paper, a comprehensive overview of chemical regu- lating mechanisms among the relationships of plant-herbivorous insects-parasitic wasps and application of them in protection of parasitic wasps were summarized.