Soybean downy mildew

scouted Aug. 22, 2022

Scientific Name
Peronospora manshurica
Background
Soybeans in Duplin county, variety AG52XF0 MG 5, were scouted and sampled.
Conclusion
The cause of the problem was identified to be soybean downy mildew, caused by Peronospora manshurica. It's a common disease that causes light green to yellow spots. It mostly affects younger leaves, which means it's usually found in the upper canopy and it only seldomly causes yield loss. There are many sources of resistance.
Resources
  • No resources have been added.
Soybean plant
Soybean roots

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