Neocosmospora root or fruit rot
scouted Sept. 22, 2021
- Scientific Name
- Neocosmospora vasinfecta
- Background
- Soybeans in Nash county, variety AG57XF1, were scouted and observed 40% of the field was affected by defoliation, dieback, browning. This is a widespread issue.
- Conclusion
- The issue was confirmed to be Neocosmospora stem rot, caused by the fungus Neocosmospora vasinfecta. Symptoms of Neocosmospora root and stem rot can include interveinal chlorosis on the foliage, the presence of small red fungal structures around the crown, and discoloration of the pith. These signs can resemble other stem diseases, especially red crown rot. As interveinal chlorosis progresses, lower leaves may begin to drop earlier than expected. Both the roots and pith may also show varying degrees of discoloration. https://cropprotectionnetwork.org/publications/scouting-for-soybean-stem-diseases
- Resources
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- No resources have been added.
