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本文对黄刺蛾越冬期的主要自然天敌——朝鲜紫姬蜂(Chlorocryptus coreanus Siepligeli)、健壮刺蛾寄蝇(Cheatexorista eutachineides Baranor)、爪哇刺蛾寄蝇(C.javana Brauer—Bergenstamm)、核多角体病毒(NPV)的形态、习性及其对黄刺蛾种群密度的控制作用,作了实地调查和相关计算分析。并对影响天敌效应的各种因子以及增强天敌效应的措施进行了初步的探讨,为以保护利用自然天敌为重点的综合防治提供参考依据。黄刺蛾Cnidocampa flavescens Walker是食性较杂的叶部害虫,在吉林省中西部地区,主要为害杨、柳、榆及各种果木,是防护林带扣果园的重要害虫。为了寻求有效的生物学方法控制黄剌蛾的大发生,笔者对有关黄刺蛾越冬期的主要自然天敌种类、习性及其对该虫种群密度的控制作用和影响的诸因子,进行了调查研究,并对天敌的利用提出建议,现将结果整理为次;
In this paper, the main natural enemies of Trichoplusia niobium during wintering period are Chlorocryptus coreanus Siepligeli, Cheatexorista eutachineides Baranor, C.javana Brauer-Bergenstamm, Morphology and habit of somatic virus (NPV) and its controlling effect on the population density of Trichoplusia ni (Homoptera: Cerambycidae) were investigated and analyzed. In addition, various factors affecting the natural enemies and the measures to enhance their natural enemies were also discussed. These results provide a reference for the comprehensive prevention and control with emphasis on the protection and utilization of natural enemies. Cnidocampa flavescens Walker is a more herbivorous leaf pest. In the central and western regions of Jilin Province, the main damage is poplar, willow, elm and various fruit trees. It is an important insect pest of the orchard belt buckle orchard. In order to seek effective biological methods to control the occurrence of the yellow-bellied moth, the author investigated the species and habits of the major natural enemies during the wintering period of the yellow-lined moth, as well as their controlling effects on the population density of the moth , And made recommendations on the use of natural enemies, the results are now organized as times;