February 3, 2025
Southern blight in apples
Dr. Kari Peter, associate research professor, tree fruit pathology at Penn State, wants growers to be aware of a relatively new orchard problem. “Southern blight (SB) is a lethal, soil-borne disease,” said Peter. “It produces sclerotia, which are tiny round structures that resemble seeds. That’s a very diagnostic sign of the pathogen. It’s extremely persistent because
