杂草严重危害农作物正常生长,已被列为农业的一种自然灾害。在农业生产中,若利用禽、鱼、昆虫、菌类及植物异株克生性等生物防治技术防除杂草,不仅能减少除草剂对环境的污染。维护自然界的生态平衡,还有利于无污染、无残留的“绿色”农产品的生产。近年来,利用生物方法来防治农 Weeds seriously endanger the normal growth of crops has been classified as a natural disaster of agriculture. In agricultural production, the use of biological control technologies such as birds, fish, insects, fungi and plant xenobiotics can prevent weeds from being weakened not only on the environment but also on the environment. Maintaining the ecological balance in nature is also conducive to the production of pollution-free and residue-free “green” agricultural products. In recent years, the use of biological methods to control farming