Soybean vein necrosis virus

scouted Sept. 7, 2022

Scientific Name
Soybean vein necrosis orthotospovirus
Background
Soybeans in Rowan county, variety 59XFO, were scouted and observed 40% of the field was affected by Blight, browning, chlorosis, yellowing and leaf spots, in random areas of the field.
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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