Pythium root and or crown rot

scouted Sept. 3, 2021

Scientific Name
Pythium sp.
Background
Soybeans in Guilford county were scouted and observed with 65% of the field being affected by widespread wilting and decay between the veins of the upper and lower leaves.
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.
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