我国三种大小蠹危害及其天敌昆虫应用

华山松大小蠹、红脂大小蠹和云杉大小蠹是危害中国松属的重要大小蠹属害虫，给森林生态系统带来极大破坏。华山松大小蠹是先锋型害虫，可直接危害健康华山松。红脂大小蠹和云杉大小蠹为检疫性害虫，主要危害衰弱木，有些情况下也可侵染健康木。由于大小蠹危害隐蔽，一经发现便已造成林木死亡，给森防工作带来极大困难。通过概述三种大小蠹的生物学习性，分析了入侵机制、适生性和风险评估情况，并在此基础上对三种大小蠹的天敌昆虫进行了统计和预估分析，可为进一步开发和利用天敌昆虫提供参考依据。

Three Dendrocton us Hazard and Application on Major Natural Enemy Insects in China

Dendroclonusarmandi,D. valens and D. micans are special pests of P. armandii in China, take a great de- struction to forest ecology. D. armandi is the pioneer pest of P. armandii, can be directly harm . D. valens and D. micans are quarantine pests , mainly harms weak trees , sometimes , can infect healthy woods . Because of the harm is hidden, it has caused death once found. The authors summarized the biological characteristics , adaptability and risk assessment of Den- droclonus , and based on the results , statistical and prediction analysized of the natural enemies of Dendroclonus , provided reference for further exploitation and utilization of natural enemy insects .