Answer: The shrub dogwoods such as this one are subject to a number of foliage problems. Some are exacerbated by soil conditions, humidity, overhead watering, and so on. Some are serious and some are not. You might want to take a sample to your County Extension (745-2732) for a more exact identification of the problem and suggested remedies, if any. In the meantime, as you have already realized, it is a good idea to clean up and destroy any fallen leaves in case there is potential for wintering over and reinfection. Good luck with your shrubs -- those are lovely plants!
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