Soybean Vein Necrosis Virus
scouted Aug. 21, 2025
- Background
- Soybeans in Granville County were being scouted, and it was observed that 5% of the field had plants affected by marginal browning and yellowing leaf spots. AGent originally suspected nematodes as some roots seemed stubby, even though they didn't have any galls. A sample was submitted to the PDIC for diagnosis, and a sample was submitted to NCDA to check for nematodes.
- Conclusion
- Soybean vein necrosis virus (SVNV) was also present in the field. SVNV is a Tospovirus occasionally present in North Carolina soybeans that, while not economically important in the region, has the potential to cause severe damage in individual soybean fields. This virus infects the whole plant and leads to necrotic tissue. It's a vector-mediated pathogen spread by immature thrips, and currently, there is no economical management tool for SVNV.
- Resources
