Click on the text link under each photo to see a larger picture.

Hypoxylon canker on water oak

Photo credit: Molly Giesbrecht | Texas A&M AgriLife Extension Service | Bugwood.org

Fruiting bodies

Photo credit: USDA Forest Service | Region 8 - Southern Archive | USDA Forest Service | Bugwood.org

Symptoms of hypoxylon canker damage

Photo credit: USDA Forest Service | North Central Research Station Archive | USDA Forest Service | Bugwood.org

Symptoms of hypoxylon canker damage

Photo credit: USDA Forest Service | North Central Research Station Archive | USDA Forest Service | Bugwood.org