Soybean Disease Alert: Red Crown Rot Threatens Crops in the US

The University of Missouri Extension has issued a warning to soybean farmers about a disease called red crown rot, which is caused by the fungus Calonectria ilicicola. This disease can cause significant yield losses, and it is essential for farmers to be aware of the symptoms and take preventive measures. Red crown rot is a soil-borne disease that can infect soybeans at any stage of growth, from seedling to maturity. The disease is characterized by a reddish-brown discoloration of the crown and lower stem of the plant, which can lead to wilting and death. The fungus can survive in the soil for several years, making it a persistent threat to soybean crops. The University of Missouri Extension is advising farmers to scout their fields regularly for signs of the disease and to take action promptly if they suspect an infection. Farmers can reduce the risk of red crown rot by using crop rotation, improving soil drainage, and avoiding excessive irrigation. They can also use fungicides as a preventive measure, but this should be done in consultation with a qualified agronomist. The disease is more prevalent in areas with high rainfall and cool temperatures, making it a significant threat to soybean crops in the Midwest. The University of Missouri Extension is working with farmers and other stakeholders to develop effective management strategies for red crown rot. Researchers are also exploring new technologies, such as precision agriculture and genetic engineering, to develop soybean varieties that are resistant to the disease. In addition to the economic impact, red crown rot can also have environmental consequences, such as soil erosion and water pollution. The disease can be spread through contaminated soil, water, and equipment, making it essential to follow proper sanitation and hygiene practices. Farmers are advised to work closely with their local extension offices and other experts to develop a comprehensive plan for managing red crown rot. By taking a proactive approach, farmers can reduce the risk of yield losses and protect their crops from this devastating disease. The University of Missouri Extension is committed to providing farmers with the latest information and resources to help them manage red crown rot and other soybean diseases. With the right strategies and technologies, farmers can minimize the impact of red crown rot and ensure a healthy and productive soybean crop.

Source