Phomopsis Blight
scouted Aug. 22, 2025
- Scientific Name
- Diaporthe sp.
- Background
- Soybeans in Pasquotank County, planted on June 9th, were being scouted, and it was observed that 15% of the field was affected by general, marginal, and mottled yellowing in random parts of the field. A sample was submitted to the PDIC for diagnosis. The field is a sunny site.
- Conclusion
- The cause was identified as seed decay and pod blight, also previously known as Phomopsis blight. It's not a common occurrence in North Carolina, but persistent arm wet weather preceding and at crop maturity may increase damage caused by this disease. Evidence in mature plants can be seen on the stems and pods, and it appears as black specks (pycnidia) in the stems and pods.
- Resources
