Fusarium root and crown rot
scouted April 13, 2022
- Scientific Name
- Fusarium sp.
- Background
- Soybeans in Perquimans county, variety Axis 3818 NRX, were scouted and observed 5% of the field was affected by browning, in random areas of the field. Vibrance Trio (Fungicide seed treatment, Inoculant, Exceed) and Broadaxe (pre-emergent 16 oz) were applied. Night temperatures were 45-46 degrees F after planting. Emergence is in high areas of field, 1.5-2 inches of rain in week following planting. The hypocotyl arch seems to be browning.
- Conclusion
- The issue was identified as Fusarium root rot and Fusarium crown rot. Fusarium root rot is caused by Fusarium sp. Fusarium root rot can result in both pre- and post-emergence damping-off, leading to delayed emergence and stunting of infected seedlings. Fusarium crown rot can cause soybean seedling diseases, especially with wet conditions shortly after planting. These are more prevalent in poorly drained or compacted soils. Improving soil drainage may reduce stress and risk of infection.
- Resources
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- No resources have been added.
