Powdery mildew
scouted Nov. 12, 2024
- Scientific Name
- Erysiphe diffusa
- Background
- Soybeans in Pitt County were being scouted and observed 85% of the field was affected by browning and yellowing in the crown and pods. The discoloration was localized. The site is in a high area. The plants exhibited signs of insect chewing and chlorosis.
- Conclusion
- The leaves from this field were diagnosed with soybean powdery mildew. This disease is a common leaf disease that is caused by an obligate biotrophic fungus, meaning that it can only grow on a living host. This disease favors cool conditions, which are rare during the North Carolina growing season.
- Resources