What causes spots on a red twigged dogwood bush?
Answers:
Could it be: ???
Spot Anthracnose: This disease is caused by the fungus Elsinoë corni, one of the most common leaf diseases of flowering dogwoods. The flower bracts are usually attacked first and then the leaves, young shoots and fruit of dogwoods, primarily during wet spring weather. Symptoms are small (1/8 inch), tan spots with reddish-purple borders. When infection is severe, these spots can cause flower bracts and leaves to become wrinkled and distorted. As further infections occur, individual spots eventually merge to form larger spots. The centers may drop out. This fungus survives from year to year on infected twigs, fruits and other tissues.
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Other answers:
could be scale, there is also some (can't remember) disease common to red twigs.
could be scale, there is also some (can't remember) disease common to red twigs.
Dogwoods need shade, long exposure to sun light often causes spots or worse.