Abstract:

This paper takes restoring and constructing relative stable ecological system to realize sustainable control of pest insects as major theory. It analyzes the present status of forest pest insects and bio-control technique in China and looks forward to the future. It also carries out discussion on the concept, criterion of stable ecological system and the methods of restoring and constructing forest ecosystem. Meanwhile, it also analyzes the role of insect viruses insecticide in restoring and constructing the stable forest ecology system, according to the results of experiments with 4 kinds of insect viruses insecticides. This indicates insect virus is one of the effective measures for constructing and restoring stable ecosystem, which takes insect as core.

Key words: forest ecological system , restoration and construction , forest pest insects , insect virus

摘要：

以恢复和构建相对稳定的生态系统实现害虫持续控制为理念，对我国林业生物灾害的现状、生物防治技术的现状及问题进行分析与展望，并从森林生态系统的概念、稳定生态系统的标准、恢复和构建森林生态系统的方法等几个方面进行了探讨。同时，根据4种昆虫病毒杀虫剂的实践结果，分析了昆虫病毒杀虫剂在恢复和构建稳定生态系统中所发挥的作用，说明昆虫病毒是构建和恢复以害虫为核心的稳定生态系统的有效措施之一。

关键词: 森林生态系统 恢复与构建 森林害虫 昆虫病毒