Osmanthus Brown Spot Control
Osmanthus brown spot is a common disease of sweet-scented osmanthus, which is caused by the fungus infection with subphylum Fungi. The planting of osmanthus plants in potted plants and potted plants occurs. The onset of light affects the ornamental effect, and the death of plants is caused by severe disease. Symptoms often occur in the leaves, most of which develop from the tips of leaves and leaves to the entire leaf. The initial lesions were light gray, followed by irregular fan-like extensions, and later lesions gradually became dry and brown with black granules. Occurrence of regular germs on the diseased plant body overwintering, by wind, rain, watering and other means of transmission, the northern outdoor conservation from spring to mid-autumn most serious disease. Control methods 1. Remove diseased plant debris in time; 2. Strengthen water and fertilizer management to enhance plant resistance to disease; 3. Breeding environment should be air and light, and the onset should not be sprayed to avoid rain; 4. Prompt control of scale insects , Locusts and other sucking pests; 5. Spray 70% mancozeb WP 500 times before the end of fall to prevent; 6. If it can occur, 90% chlorothalonil 500 times or 50% can be used 500 times mycelium solution for prevention and treatment. Soft Stretcher,Portable Waterproof Stretcher,Emergency Folding Stretcher Wholesale from ChinaSoft Stretcher,Portable Waterproof Stretcher,Emergency Folding Stretcher,Impervious Emergency StretcherProfessional manufacturer of Soft Stretcher,Portable Waterproof Stretcher in China, Wholesale Emergency Folding Stretcher,Impervious Emergency Stretcher with low price, high quality. Soft Stretcher Soft Stretcher,Portable Waterproof Stretcher,Emergency Folding Stretcher,Impervious Emergency Stretcher Luck Medical Consumables Co.,LIMITED , https://www.luckmedical.com