Soybean rust

scouted Dec. 7, 2020

Scientific Name
Phakopsora pachyrhizi
Background
Soybeans in Pitt county were scouted and it was observed that 15% of the field was affected. The entire plant and leaves showed symptoms.
Conclusion
This issue was identified as Asian soybean rust, which is caused by the fungus Phakopsora pachyrhizi. Asian soybean rust is a soybean pathogen described for the first time in the Southern portion of North Carolina in 2005. Rust is uncommonly observed during critical growth stages in North Carolina. Heavily infected plants may produce fewer pods, fewer seeds per pod, and reduction in weight, resulting in yield losses.
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