Entyloma spp.
Tags
Symptoms
Lesions appear water-soaked and then gray-brown on the upper surface and gray-blue on the lower surface of leaves. Lesions contain mycelium and teliospores, and may coalesce and become delimited by leaf veinlets.
Factors favoring
- Presence of previously infested crop debris
- Lack of crop rotation
- Poor sanitation of previous legume and weed debris
- Contaminated seed
- Susceptible varieties
- Moderate to high moisture conditions favor slugs
- Infection at V2 – R2 results in plant death, and/or reduced pod set, poor seed fill, and yield loss
Entyloma Leaf Smut
Additional Resources
- http://legume.ipmpipe.org
- http://wiki.bugwood.org/PIPE:Legume
- http://www.apsnet.org/ - Compendium of Bean Diseases 2nd Ed.
Photo credits
Courtesy of G. E. Galvez (CIAT – APS Bean Compendium), S. K. Mohan and H. F. Schwartz