寄生蜂寄主选择行为研究进展

寄生蜂是膜翅目昆虫中的重要类群，在自然界种类多，数量大。据文献报道全世界膜翅目昆虫大约有10万种”’，其中许多种类与农林害虫长期保持一定的制约关系，在害虫防治中占有重要地位。由于大量使用化学农药导致害虫的抗药性增加，利用天敌昆虫来防治害虫越来越显示出其重要性和优越性。但是，直到近20年来，寄生蜂的寄生行为才受到重视，并给予了广泛的、深入的研究”－‘’严格地讲，寄生蜂应该称为拟寄生蜂，它与通常所说的寄生昆虫像虱子、臭虫等有明显不同，主要区别在于：1．寄生仅仅发生在未成熟阶段，而成虫阶段营自由生活；2．寄…

PROGRESS IN THE STUDY ON HOST SELECTION BEHAVIORS OF PARASTIC WASPS

Host selection behaviors of parasitic wasps are a comoplex and hierarchy process,which includes habitat preference, potential host location and host location. In the field,whether a parasitic wasp successfully finds its host or not is determined by many facors such as climatic conditions, host density, chemical environment, physiological states and ex-priences.This paper surveys the recent progress in the study on host selection behaviors of parasitic wasps. The following aspects are included: 1. host searching, oviposition and post-oviposi-tion behaviors of the parasitoids and the cues employed, and 2- behavioral variations of the wasps and associated factors including genotype, physiological states, experiences and learn-ing. Prospective application of parasitic wasps in pest insect control is discussed.