Anthracnose
scouted Aug. 15, 2024
- Scientific Name
- Colletotrichum destructivum
- Background
- Soybeans in Pasquotank County, variety Pioneer 48A05E, were scouted and observed to have roughly 15% of plants affected by dieback, yellowing, stem rot, and root rot in localized patches. Initially, the problem appeared limited to small areas of stunted and dying plants, but conditions have progressively worsened following recent rainfall. There are now whole sections of rows that are dead, followed immediately by healthy rows, creating a repeating pattern across 6–8 rows.
- Conclusion
- The cause of disease was identified as Anthracnose, caused by Colletotrichum. While usually a disease that shows in the stems and the petioles, 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
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- No resources have been added.
