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Columbia arborist Chad Herwald examines oak leaf galls from a pin oak tree in Lenoir Woods

July 10, 2012 | 6:00 a.m. CDT
Columbia arborist Chad Herwald examines oak leaf galls found on a pin oak during his inspection July 2 at Lenoir Woods. According to Herwald, leaf galls will stress the tree a little and make it more susceptible to skeletonizing insects.



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