Answer: I wish I could diagnose the problem based upon your description, but I'm afraid I can't. However, you have a helpful expert in your neighborhood - the WSU Puyallup Research Center. You can take a sample of the problem into the Plant Problem Clinic and you'll get an immediate diagnosis, along with some helpful advise. Be prepared to give a detailed history of your dogwood, and be sure to take a sample that includes both affected and unaffected parts of your tree. Best wishes with your dogwood!
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