What is causing white fungus to grow on my Amur chokecherry tree?
The white growths on the trunk of the tree appear to be shelf mushrooms. Mushrooms are a sign of rotted or rotting wood. The peeling bark is caused by decay, or decay is making it easy for animals to chew the bark.
It is time to do a hazard assessment. If the tree comes down during a storm, will anything be harmed? If people or property would be harmed, it would be best to take it down in a controlled manner. For more information, click on this link for a publication on Tree Risk Assessment and Management.