Soybean vein necrosis virus
scouted Sept. 12, 2023
- Scientific Name
- Soybean vein necrosis orthotospovirus
- Background
- Soybeans in Yadkin County, variety AG54XFO were scouted, and approximately 30% of the field was affected by bleaching, browning, and yellowing between and along the leaf veins, as well as leaf spot symptoms. The submitted samples represent untreated strips from a foliar fungicide trial. Treated strips received Miravis Top at the R3 growth stage. In addition, the entire field was treated with herbicide applications of RoundUp and Flexstar.
- 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 pathiogen spread by immature thrips and currently there is no economical management tool for SVNV.
- Resources
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- No resources have been added.
