Bark shelling (peeling and cracking) on the rootstock of a citrus tree infected with Citrus exocortis viroid. A cluster of mushrooms emerging from soil near a tree trunk.

Bark shelling (peeling and cracking) on the rootstock of a citrus tree infected. A cluster of mushrooms emerging from soil near a tree trunk. UCR, Riverside Co. Credit: David Rosen
Credit: David Rosen