论文部分内容阅读
自1958年以来,我们陆续对马尾松毛虫(Dendrolimus punctatus Walker)天敌的种类及其发生与外界环境的关系,以及如何利用天敌防治松毛虫的方法,作了一些调查研究,现将初步研究结果,整理于下。一、天敌抑制松毛虫的效果 (一)寄生天敌抑制松毛虫的作用松毛虫寄生天敌种类繁多,据统计,仅寄生蜂就有45种,近年来陆续又有不同种类出现。自1958年以来,我们已收集到的有寄生蜂24种,寄生蝇4种,其中卵寄蜂10种,
Since 1958, we have made some investigations on the species of the natural enemies of Dendrolimus punctatus Walker and their relationship with the external environment, as well as how to use natural enemies to control the pine caterpillars. After a preliminary study, Tidy up. First, natural enemies inhibit the effect of pine caterpillars (a parasitic natural enemies inhibit the role of pine caterpillars Pine caterpillars parasitized a wide range of natural enemies, according to statistics, there are only 45 kinds of parasitic bees, in recent years, there have been different types appear. Since 1958, we have collected 24 kinds of parasitic wasps and 4 kinds of parasitic flies, including 10 kinds of eggs to bees,