Fusarium root rot

scouted May 23, 2022

Scientific Name
Fusarium sp.
Background
Soybeans in Sampson county were scouted and observed 35% of the field was affected by defoliation, browning, yellowing between the veins and marginal, in spots in the field, widespread, dry site. Random areas in the field are experiencing yellowing of lower leaves along with die back and leaf roll. Affected plants appear stunted compared to healthier plants. Less nodulation was observed on affected plants as compared to healthier plants as well. This are has sandy soil. The conditions are dry and hot, but moisture can be found approximately 2" below soil surface.
Conclusion
The issue was identified as Fusarium root rot. This disease 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.
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