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落叶松鞘蛾 Coleophora laricella 是落叶松林的大害虫,为探讨寄生蜂对它的控制作用。笔者于1973—1985年,在黑龙江省牡丹江林区和吉林省四平地区落叶松人工林内(面积约7000亩),对9种鞘蛾寄生蜂的发生、消长和寄生情况,做了初步观察,介绍如下:一、寄生蜂种类及寄生率常见的鞘蛾寄生蜂种类见表1。二、发生与消长情况春季落叶松林内气温12—19℃时,以鞘蛾金小蜂为首的幼虫期寄生蜂先后羽化,最先出现的是鞘蛾金小蜂和黑青小蜂,它们密度大,活动频繁,寄生率高。5月中、下旬金小蜂与沟姬蜂也相继羽化,密度不大,寄
Coleophora laricella is a large pest of Larix gmelinii, in order to explore the parasitic wasps to its control. From 1973 to 1985, the author made preliminary observations on the occurrence, growth and parasitism of parasitoids of nine species of Coleoptera in the Mudanjiang Forest Region of Heilongjiang Province and the Larix gmelinii Plantation in Siping Region of Jilin Province (an area of about 7000 acres) As follows: First, the parasitic bee species and parasitism Common coleoptera parasitic bee species shown in Table 1. Second, the occurrence and growth of the situation Spring larch forest temperature of 12-19 ℃, the coleoptera queen bee-headed larvae parasitic wasp emergence of the first stage, the first coleoptera wasps and black juvenile bee, their density Large, frequent activities, high parasitism. May mid and late Golden Bee and ditch wasps have also emerged, the density is not, send