Soybean vein necrosis virus
scouted Aug. 17, 2023
- Scientific Name
- Soybean vein necrosis orthotospovirus
- Background
- Soybeans in Forsyth county, variety AG54XFO, were scouted and it was observed that 10% of field was affected by marginal and between the veins yellowing, and speckling and stippling. The field was sprayed with fungicide. There was small patches of yellowing leaves in the very bottom of the canopy. Only the lower leaves are affected by the yellowing and the brown spotting. The brown spots that have been found in the leaves do not seem to coalesce; they are independent of each other. Some insect damage is present. There is a very large population of Japanese beetles in the field. The site is low, wet, and sunny.
- 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.
- Resources
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- No resources have been added.
