Question From: NEW JERSEY
Q: Sweet gum trees terminal small branches with leaves are falling and look like they are being chewed off. Clusters contain 10-20 leaves. Persistent for about one month. Falling from trees all day and in abundance.
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My guess would be squirrels, however I don't have a crystal ball, so I recommend you get and onsite inspection from a certified arborist. To contact one in your area go to tcia.org amd enter your zipcode. Best And Happy Yardening, Nancy.