摘要
对巴彦淖尔市暴发性森林害虫杨二尾舟蛾的寄生性天敌昆虫的种类、主要天敌昆虫种类的生活习性、寄生作用进行了比较详细的调查和观察。共采集到寄生性天敌昆虫9科17种,其中优势天敌种类为：寄生卵的舟蛾赤眼蜂,寄生率达10.8%;舟蛾卵跳小蜂,寄生率达56.8%;寄生幼虫的舟蛾绒茧蜂,寄生率达15%;寄生蛹的舟蛾金小蜂,寄生率达7.4%。这些天敌昆虫的共同作用,可以使杨二尾舟蛾的虫口密度下降50%~90%,因而是极有利用价值的天敌种类,应加以很好的保护和利用。
In this paper, kinds, living habits and parasitic effect of parasitic enemy insects to Cerura menciana Moore have been investigated and observed in Bayannaoer. There are about 9 families and 17 genera of parasitic enemy insects have been gathered, which Trichogramma closterae Pang etchen, Ooencyrtrus sp. , Apanteles sp. and Heferoprymna sp. are dominant species with parasitic rate at 10. 8% , 56.8% , 15% and 7.4% separately. These natural enemy insects can decrease the population density by 50% -90% together. And they are natural enemy insects with great useful value, which should be well protected and utilized.
出处
《内蒙古林业科技》
2009年第3期43-47,共5页
Journal of Inner Mongolia Forestry Science and Technology
关键词
杨二尾舟蛾
寄生
天敌昆虫
Cerura menciana Moore
parasitism
natural enemy insect
