生物防治技术就是根据每种生物在自然界都有其天敌的生物学原理,以一种或一类生物抑制另一种或另一类生物,有效地控制作物病虫害的技术。利用生物防治技术控制病、虫、草等对农作物的危害,是提高农作物品质、减少环境污染、实现农业可持续发展的有效途径。1992年联合国环境与发展大会提出,2000年生物农药要占总用药量的60%,而中国目前还远远达不到这一标准。但近几年,众多农业科 Biocontrol technology is based on the biological principle that each organism has its natural enemies in nature, and one or more types of organisms are capable of controlling another or another type of organism to effectively control crop pests and diseases. The use of biological control techniques to control diseases, insects and grasses to crops is an effective way to improve crop quality, reduce environmental pollution and achieve sustainable agricultural development. In 1992, the United Nations Conference on Environment and Development proposed that biopesticide should account for 60% of the total dose in 2000, but China still falls far short of this standard. However, in recent years, many agricultural departments