广赤眼蜂(Trichogramma evanescens westwood)我所早在一九六一年已经发现,当时定名为褐赤眼蜂,并进行了短期的饲养观察。近年来我所在引进松毛虫赤眼蜂防治棉铃虫的基础上,对本地广赤眼蜂进一步进行了调查和室内饲养观察。根据调查,确认广赤眼蜂是塔里木河上游地区粮、棉、蔬菜等多种害虫的主要天敌之一,自然寄生率高,寄主范围广,是很有利用价值的赤眼蜂优势种。 Trichogramma evanescens westwood As early as 1961, I have discovered that I was named Trichogramma and was short-term rearing observations. In recent years, I have introduced Trichogramma dendrolimi to control the cotton bollworm on the basis of further investigation of the local Trichogramma and indoor rearing observations. According to the survey, it is confirmed that Trichogramma was one of the main natural enemies of various pests such as grain, cotton and vegetables in the upper reaches of Tarim River. It has high natural parasitism and wide host range, and is a valuable species of Trichogramma.