One of the most serious causes of white tree bark is white rot fungus. If your tree normally has white bark, you will need to ...

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 ... an avenue to attack the trees," Gracy explained. The fungus causes the sapwood to rot, making it hard for a tree to ...