Cercospora leaf blight
scouted Aug. 22, 2025
- Scientific Name
- Cercospora kikuchii
- 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 issue was identified as Cercospora blight of soybean. This disease is caused by the pathogen Cercospora kikuchii, and although it's common in soybeans, it rarely causes significant yield losses in North Carolina. Chemical management and cultural practices are both options to control Cercospora leaf blight.
- Resources
