化学除草剂是一种替代人工除草的重要措施,它在作物田尤其是需要采用保护性耕作制度的田块中大规模使用来防除农田杂草。杂草不仅影响作物的产量和质量,还影响作物正常的种植和采收。从全世界农药的销售情况来看,杂草的防除也是耗费金钱最多的。除草剂的副效应是指除草剂除了对靶标——杂草有抑制作用外,对非靶标生物、外在环境和生态系统的影响作用。作为除草剂的副效应,除草剂对植物病害的影响作用越来越受到植物保护界和环境保护者 Chemical herbicides, an important alternative to manual weeding, are used on a large scale in crop fields, especially in plots requiring conservation tillage, to control farmland weeds. Weeds affect not only the yield and quality of crops, but also the normal cropping and harvesting. From the perspective of the sales of pesticides in the world, the control of weeds also consumes the most money. The side effect of herbicides refers to the effect of herbicides on non-target organisms, the external environment and the ecosystem in addition to the target-weed inhibition. As a side effect of herbicides, the effect of herbicides on plant diseases is more and more influenced by plant protectionists and environmentalists