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青杨天牛是杨树的主要蛀干害虫,在我省危害极其严重。一九七二年,曾在雁北地区进行过大面积飞机防治。近年来,怎样开展生物防治,以虫治虫,防治青杨天牛成了大家关注的问题。据山东省林科所报导,一九七五年在该省平邑县浚河林场,从青杨天牛的虫瘿内发现一种寄生天牛幼虫的小蜂,后经中国科学院动物研究所鉴定,定名为天牛肿腿蜂。目前,己初步掌握了肿腿蜂的形态、特征、生物学特性及其利用价值。一九七七年十月,河北林业专科学校从山东引进一部分母蜂(65头),经繁蜂试验,到七八年五月就发展到11万7千多头,同时,观察记载了生物学特性,通过两次林间释放,证明防治效果较好。最近,山西农学院和太原市林场等单位也正在进行肿腿蜂的研究工作。现将有关肿腿蜂的繁殖和利用等方面综述如下:
Qingyang Tian cattle are the main stem borers poplar, in our province is extremely serious harm. In 1972, a large area aircraft control was conducted in Yanbei. In recent years, how to carry out biological control, insect pest control, prevention and control of Green Yang Tianxian became everyone’s concern. According to the report of Shandong Forestry Academy, in 1975, in Junhe Forest Farm of Pingyi County in the province, a small wasp that parasitized the larvae of Tian Tian cattle was found from the insects of the Qingyang Tian cattle. After identification by the Institute of Zoology, Chinese Academy of Sciences, Named as bullfighting leg bee. At present, we have initially mastered the morphology, characteristics, biological characteristics and the value of their application. In October 1977, Hebei Forestry College introduced a proportion of female wasps (65 heads) from Shandong Province. After the bumblebee test, it increased to 117,000 heads in May-July of 1978. At the same time, Learning characteristics, through the two forest release, to prove good control effect. Recently, units such as Shanxi Agricultural College and Taiyuan Forest Farm are also conducting research on swollen legs and bees. Now the reproductive and utilization of swollen leg bee and other aspects are summarized as follows: