How do you treat fungus on a cherry tree?

When a fungus attacks an ash, dogwood, maple, oak, sycamore, or walnut tree, it defoliates and disfigures the tree, significantly diminishing its appearance. During the spring, watch for twig cankers, twig dieback, defoliation, and leaf blotching.

Use fertilization and fungicide applications as needed during the spring, and remove and rack the dead leaves in the fall.