A soybean field in Beaufort County was being scouted, and it was observed that 10% of the field was affected by yellowing between the veins. Domark was applied 21-28 days ago. A sample was submitted to the PDIC for diagnosis.
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.