Bean root and stem rots are caused by fungi that live in garden soil. Rhizoctonia root and stem rot, caused by the fungus Rhizoctonia solani, is a common disease that causes reddish-brown, oval lesions (wounds) on the lower stem of the bean plant. Fusarium root rot, caused by the fungus Fusarium solani, causes a reddish-brown decay and discoloration of the roots and lower stem of the beans. Pythium root root, caused by the fungus Pythium spp., causes a wet rot of roots and stems, and white, fluffy fungal growth may be observed if moisture is high. Select disease-resistant varieties. Avoid planting in low, poorly drained soils. Rotate beans with other crops in the garden. Avoid planting bean seeds deeply into cold soils. Plant beans once the soil has reached 69 degrees F at a 4-inch depth. Remove and destroy infected crop debris immediately after harvest.
These resources are brought to you by the Cooperative Extension System and your Local Institution
Welcome
eXtension is an interactive learning environment delivering the best, most researched knowledge from the smartest land-grant university minds across America.
eXtension: more mind reach
Have a question? Try asking one of our Experts
Have a specific question? Try asking one of our Experts
Unlike most other resources on the web, we have experts from Universities around the country ready to answer your questions.
