Answer: Cornus, or Dogwood, are susceptible to a disease called anthracnose, which fits the description of the brown areas on the leaves and peeling of the bark on your tree. Anthracnose is a fungus that overwinters on dead twigs and on the leaves on the tree and on the ground. To help control, prune out and destroy infected twigs, and rake and destroy fallen leaves in the spring and in the fall. There are some protective (fungicidal) sprays that can be used in the spring prior to the unfurling of the leaves, if the problem persists.
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