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U.S. Department of Agriculture
A splitting tree trunk can have many causes
A splitting tree trunk can have many causes

Can you tell me why the trunk of our weeping mulberry is splitting? It is 14 years old and has been moved twice. We treated it for fungus last summer. We are in zone 7a [on the U.S. Department of Agriculture map] and haven't had any big swings in temperature this season. Last winter was a doozy for temperature swings, but we still can't say for sure if that is why your tree has a crack. It could crack from frost, sunscald, insects, herbicide damage or simply a natural growth crack. Search "tree cracks" on the Home and Garden Information Center website for more information. My 13-year-old houseplant is very special to me, as it was given to me at my father's...

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