Detoxigenin, also known as cycloserine, is the name of a pesticide, which has a good control effect on many fungal diseases such as wheat powdery mildew, tobacco brown spot, cucumber downy mildew, melon Fusarium wilt, alternaria panax whetz, beet brown spot, rice sheath blight, apple early defoliation, tree blight, pear black spot and so on. It can not only cure diseases, but also stimulate plant growth.