Phomopsis Blight
scouted Aug. 22, 2025
- Scientific Name
- Diaporthe sp.
- Background
- Soybeans in Pasquotank County, planted on May 1st, were being scouted, and it was observed that 60% of the field had leaves with mottled yellowing in a widespread pattern across the field. A sample was submitted to the PDIC for diagnosis
- 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 warm, 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
