Wheat yellow mosaic virus disease is a soil-borne disease. Diseased plants have few tillers and poor root system development, and most of them are not dwarfed. Symptoms appear during the regreening stage, with chlorotic streaks appearing on the new leaves behind the 4-6 leaves of wheat. A few heart leaves are distorted and deformed. The plants are severely dwarfed and distributed irregularly. The area of ????the disease expands outward year by year at the same location as in previous years. . Prevention and treatment methods: 1) Selecting disease-resistant varieties is the best way to prevent and control this disease. 2) Use aminooligosaccharides, or ningnanmycin, or lentinan, or sophora flavescens, sulfur, or morpholine hydrochloride + zinc fertilizer + seaweed fertilizer + ampicillin (the effect will be better if added, but it can be omitted) Spray once every 7 days, 2-3 times in a row.