Fungi on Corkscrew Willow
I have a 15 year old cork screw willow that has developed several shelf-like mushrooms growing up the trunk of the tree. I have done a bit of research that leads me to believe this is a sign my tree may be dying from rot on the inside. Is this true? Is there a possible say to save the tree?
Webster County Iowa
The shelf-like mushrooms growing on the trunk of the willow tree are likely a wood decay fungus. The presence of wood decay fungus indicates that a portion of the trunk if rotting or decaying. The wood decay fungus won't directly kill the tree. However, the decay structurally weakens the tree. A storm (either strong winds or ice) will likely destroy the tree at some point in the future.
Unfortunately, there is nothing that can be done to stop the decay or prevent the destruction of the tree in a storm.