初步研究了美国引进的迪氏跳小蜂Zarhopalus debarri与本地粉蚧长索跳小蜂Anagyrus dactylopii(Howard)竞争的情况,结果表明,即使在种群数量占优的情况下,在竞争中迪氏跳小蜂仍处于明显的劣势,而且两种寄生蜂在混合种群中相互排斥的。在林间释放迪氏跳小蜂,也未能在林间找到子代蜂。推测林间存在的本地蜂是影响外引蜂的定居与繁殖因素之一。 A preliminary study on the competition between Zarhopalus debarri introduced by the United States and Anagyrus dactylopii (Howard), a local wasp, showed that even in the case of predominant population, The bee is still at a significant disadvantage, and the two parasitoids are mutually exclusive in the mixed population. The release of Dipsor wasps in the woods also failed to find offspring in the woods. It is speculated that the native bee present in the forest is one of the factors that affect the colonization and reproduction of the bee-eater.