Answer: The symptoms you describe sound like the disease called Anthracnose. Dogwoods are susceptible ? some years are worse than others. The diseased area usually begins at the leaf tip and then spreads to involve entire branches. The leaves start with a blotch which spreads to the midvein, giving a wedge-shaped appearance. The dead leaves often hang on the tree until fall. To control, prune out and destroy infected twigs when possible; rake and remove fallen leaves from spring until fall; You can apply a fungicide each spring to help protect the leaves; beginning sprays at budbreak and continue at 10-14 day intervals until weather remains dry. If you?re experiencing a wet spring, you may need to reapply the fungicide. Be sure to follow label directions.
Best wishes with your dogwood!
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