Target spot
scouted Oct. 1, 2024
- Scientific Name
- Corynespora cassiicola
- Background
- Soybeans in Cumberland county were being scouted and it was observed that 30% of the field is affected by yellowing and reddening between the veins and had leaf spots.
- 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