This rot is caused by a fungus that attacks the tree's bark, with apple and pear trees being the most common hosts. If not addressed promptly, canker can kill a tree within a single season and ...

The fungus, known as hypoxylon canker, targets the bark and sapwood of hardwood trees, such as oaks and hickories. This can lead to tree death. Davin Gracy, Ag Extension Educator for Bryan County ...