Peanut white peony disease is a kind of soil fax fungus disease, which occurs when peanut pods inflate to maturity. Peanut roots, pods, and bases of stems were brownish and softly rotted at the beginning. The white rhizomes were found in the aerial parts of the roots (hence the disease), and the sclerotia of the rapeseeds were yellow, and the stems and leaves became yellow and gradually withered. , Peanut pods rot. After the onset of the disease control effect is poor. Pelargonium hirsutum spreads with soil, flowing water, and seeds. The risk is great. Once invaded, the bacteria will accumulate in years and it will be difficult to control and eradicate them. Under proper conditions, the mycelium produced by germination of sclerotia invades directly from the roots of the peanut or the base of the stem, or invades from the wound, and causes reproductive damage, causing the onset of roots and rot. The sclerotia that have matured on the newly diseased plants can also be transmitted through rainwater, irrigation water, insects, agricultural operations and other factors, and continue to cause re-infection. During the whole growing season of peanuts, the germs can be repeatedly infested, and the sclerotia formed in the final diseased tissue fall into the soil or remain in the diseased plants overwintering. Prevention: 1. Clean garden peanuts Immediately after harvest, the sick body is completely cleared of the field, leaving no residue to eliminate the source of overwintering bacteria. 2. A reasonable crop rotation can be carried out for more than 3 years with grass crops to reduce the accumulation of bacteria. 3. Soil disinfection combined with spring plowing, deep plowing the land, with 70% thiophanate-methyl 2 kg / acre, add fine soil and sprinkle in the soil after the mix to eliminate residual pathogens. 4. Strengthen field management Scientifically and rationally use nitrogen, phosphorus, and potassium fertilizers, increase organic fertilizer, zinc fertilizer, calcium fertilizer, and boron fertilizer. Immediately after the emergence of peanuts, seedlings are used to inoculate seedlings to ensure that they are seedlings of a moderate density; mid-growth plants are used for weed control and prevention of desertification, so as to facilitate ventilation and light transmission, enhance plant disease resistance, and control the occurrence of blight. 5. In the growing season of peanuts, the affected strains are removed in a timely manner and the diseased bodies are burned to reduce the accumulation and spread of germs, and to control the speed and degree of epidemics. 6. Chemical control can be used 50% iprodione, 50% procymidone 1000 times, 40% saccaride net 600 times, 50% carbendazim 800 times, or tebuconazole, difenoconazole and other pairs Road agent alternate spray application of 2 to 3 times, every 7 to 15 days 1 times, pay attention to spraying evenly. It can also be used to irrigate root 70% thiophanate-methyl 800 times in the peanut crusting period, and the control effect is very obvious. Heat And Moisture Exchange Filter Heat And Moisture Exchange Filter,Medical Hme Filter,Disposable Heat Moisture Filters,Pediatric Hme Filters Shaoxing Jenston Medical Products Co., Ltd. , https://www.sxjcmed.com