Anthracnose
scouted Aug. 2, 2026
- Scientific Name
- Colletotrichum destructivum
- Background
- A soybean field, variety NK58, in Randolph County was being scouted, and it was observed that 1% of the field was affected by canker, damping off, root rot, and stem rot in patches. The site is wet. A sample was submitted to the PDIC for diagnosis.
- Conclusion
- The issue was identified as Anthracnose, caused by Colletotrichum sp.. While usually a disease that shows in the stem, petioles, and pods with red to dark brown lesions. It can also cause leaf curling and reddening of the veins. Warm, wet weather favors infection and disease development. Crop rotation and tillage can reduce inoculum, while foliar fungicides will reduce disease, but it's usually not profitable.
- Resources
