Soybean vein necrosis virus

scouted Sept. 28, 2022

Scientific Name
Soybean vein necrosis orthotospovirus
Background
Soybeans in Union county, variety AS54FXO, were scouted and observed 10% of the field was affected by browning and yellowing, leaf spots, and wilting. These symptoms were widespread in the upper leaves for the most part. Stink bugs on the top plant leaves, pods, eggs, and egg bearing structure for a large stink bug hatch out. The site has a large stink bug infestation.
Conclusion
The issue identified was Soybean vein necrosis virus (SVNV) found in the samples from this 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.
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