Pythium root and or crown rot
scouted April 13, 2022
- Scientific Name
- Pythium 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 Pythium root rot and/or Pythium crown rot. This disease is caused by Pythium sp. Pythium root rot and crown rot can result in both pre- and post-emergence damping-off, leading to delayed emergence and stunting of infected seedlings. Prevalence tends to increase in warm and moist, but not saturated soils. This pathogen is an oomycete.
- Resources
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- No resources have been added.
