随着人们生活水平的日益提高，对无污染和优质农产品的大量需求，使得生物防治技术在农林重大害虫防治体系中占有十分重要的和不可取代的地位。利用有益生物防治农作物病、虫、草，是一项可以节约能源、降低成本、促进生态平衡、保护生态环境、持久控害的重要措施。在天敌昆虫? With the continuous improvement of people’s living standards, the huge demand for non-polluting and high-quality agricultural products has made biological control technologies a very important and irreplaceable role in the major pests and diseases control systems in agriculture and forestry. The use of beneficial organisms to prevent crop diseases, insects and grasses is an important measure that can save energy, reduce costs, promote ecological balance, protect the ecological environment and endure long-term control. In natural enemies?