Fusarium Wilt of Soybean
scouted Nov. 13, 2024
- Scientific Name
- Fusarium oxysporum
- Background
- Soybeans in Tyrell County were being scouted and it was observed that 85% of a field was affected by green stems, which was widespread, and the site is in a low area. Green stems spread across almost the entire field. A field of the same variety, treated the same way, not even a 1/4 mile down the road, was healthy and able to be harvested.
- Conclusion
- This issue was caused by Fusarium oxysporum. It often occurs in irregular patches in the field. Symptoms are first observed in hot and dry conditions, and they include interveinal chlorosis in the leaves, premature defoliation ,and wilting and reddish/brown vascular discoloration in the stem. This disease is usually a major limiting factor in soybean production, but it's more severe in northern states. It usually doesn't represent a major threat to soybeans in North Carolina.
- Resources
