Cercospora leaf blight

scouted Aug. 1, 2025

Background
Soybeans in Pasquotank county were scouted and it was observed that the edges and some random parts of the field were showing signs of yellowing leaves. A sample was sent to PDIC for diagnosis.
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.

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