应用雌蜂对寄主卵的接受率作为指标,对采自我国北纬22～43度,5种松毛虫的6个松毛虫赤眼蜂种群在米蛾卵上的避免过寄生能力进行比较观察,结果表明各种群的雌蜂对自身、同种群其他个体及其他种群已寄生过的卵都能很准确地予以辨别,各种群间避免过寄生的能力无显著差异。 The acceptance rate of female eggs to the host eggs was used as an index to observe the avoidance of parasitism of six Trichogramma dendrolimi populations collected from 22 to 43 degrees north latitude and 5 species of Dendrolimus punctatus in rice moth. The results showed that the females in each population could distinguish themselves, the other individuals in the same population and the eggs that other populations had parasitized. The ability of the females to avoid parasitism was not significantly different among the populations.