HANDAN ZHONGBAO IMPORT AND EXPORT TRADING CO.,LTD , https://www.hdzbfastener.com
Peanut root rot is a serious disease that can affect peanuts at all growth stages. Before the seeds emerge, it can cause seed decay and weak sprouts. In young plants, it may lead to root rot and seedling diseases. In mature plants, the disease can result in root rot, stem rot, and pod rot. Affected plants often show stunted growth, yellowing leaves, and eventual wilting. When the environment is moist, pink mold appears on the infected areas, which is the conidia of the pathogen.
To prevent and manage peanut root rot, several effective measures can be taken. First, choose resistant peanut varieties and treat the seeds before planting. Remove discolored, moldy, or damaged seeds. Treat the seeds with 50% tetrachlorophenyl hydrazine wettable powder or 50% carbendazim wettable powder for disinfection. Second, implement crop rotation and deep plowing to improve soil conditions. Third, manage fertilization properly, ensure timely drainage after rain, and apply well-decomposed manure along with appropriate amounts of phosphorus and potassium to strengthen plant health and enhance resistance to disease.
Before planting, combine plowing with the application of 96% hymexazol liquid at a rate of 50 kg per acre, or 70% mancozeb WP at 2.5 kg per acre, or 70% metalaxyl at 2.5 kg per acre to control pathogens in the soil. If the disease has already occurred, spray 30% hymexazol at 1000 times dilution, 800 times dilution of 70% thiophanate-methyl, 500 times dilution of 50% carbendazim, 1000 times dilution of 50% iprodione, or 1000 times dilution of 70% chlorothalonil. Alternatively, use 400 times dilution of 23% copper ammonium complex. Spray every 7 to 10 days, focusing on the roots, base of the stems, and the ground around the plants. Repeat the treatment as needed for best results.