Question: I have several river birch trees planted near each other. Each year about this time they start dropping leaves and this continues until fall. The leaves make a mess of the yard all summer. I've tried to research what the problem might be, but there seem to be a number of potential reasons. How can I determine the cause and then know how to treat the cause? Thank you.
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When singular and plural spellings differ, as in peony and peonies, try both.