Keep your tree from becoming an extreme threat to your property and landscape when it is infected by Hypoxylon canker. When you know how to identify and treat this disease, you might save your tree. toddsmariettatreeservices.com gathered information about the definition, identification, treatment, and prevention of Hypoxylon canker. Hypoxylon Atropunctatum Disease Definition Hypoxylon atropunctatum is the former, more widely-known name of Biscogniauxia canker or dieback. This disease is a … [Read more...] about Hypoxylon Canker Disease on Oak and Shade Trees (Biscogniauxia Canker)