1. UC IPM
Bark shelling (peeling and cracking) on the rootstock of a citrus tree infected with <I>Citrus exocortis viroid.</I> A cluster of mushrooms emerging from soil near a tree trunk.
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.
Credit: David Rosen