Oxazolidone is a new efficient and broad-spectrum fungicide, which is suitable for crops such as wheat, barley, pea, sugar beet, rape, grape, potato, claw, pepper, tomato and so on. It is mainly used to control important diseases in Ascomycetes, basidiomycetes and oomycetes, such as powdery mildew, rust, glume blight, net spot, downy mildew, late blight, etc. Mixed with flusilazole has better effect on controlling wheat Ying blight, net spot, powdery mildew and rust.