Wheat Mosaic Virus Disease
After being infected, symptoms do not show until winter. Symptoms do not appear until the wheat turns green in spring. The infected plants appear on the new leaves after the 4th to 6th leaves of the wheat. Chlorotic streaks, a few heart leaves are distorted and deformed, and the chlorotic streaks will increase and spread later. The lesions are combined into irregular stripes of varying lengths and widths, resembling a spindle shape, and old diseased leaves gradually turn yellow and die. Diseased plants have few tillers, shrinkage, and poorly developed root systems, and severely diseased plants are significantly dwarfed.
To prevent wheat yellow mosaic disease, you can topdress 5-8 kg of urea per acre during the greening period, and use 75 ml of 5% aminooligosaccharide or 200 ml of 2% mycotoxic, mixed with 50% water kg spray.
Or use 0.5-0.75 kg of urea + 0.2 kg of potassium dihydrogen phosphate per acre, mix with 50 kg of water and spray, or spray with 3000-5000 times of 0.01% brassinoids to accelerate the transformation of seedlings. Slow down the progression of the disease and reduce harmful losses.
If you want to control wheat sheath blight and prevent wheat stripe rust at the same time, you can spray 20 grams of 12.5% ??diconazole and 100 grams of 15% triadimefon per acre mixed with 50-60 kg of water.