Target spot
scouted Aug. 26, 2021
- Scientific Name
- Corynespora cassiicola
- Background
- Soybeans in Hyde county, variety Dynabro43XS7, were scouted and observed with 5% of the field affected by anker, dieback, browning, and leaf spot in patches. Besiege and boron were applied 2 weeks prior to sampling but no fungicide.
- Conclusion
- The cause of disease was identified as Target spot, caused by Corynespora cassiicola. This is a common pathogen in the state, but losses associated with it are rare. Infection requires high humidity and long periods of high moisture with free water resting on tissue surfaces. Cultural practices like crop residue destruction, managing weed hosts, and a crop rotation schedule that excludes hosts for several years are important to limiting disease losses.
- Resources
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- No resources have been added.