Oak Pompom Galls (a.k.a. Flake Galls) are Turning Brown
Small, round, fuzzy wasp galls on the underside of distorted leaves can draw the attention of concerned tree owners. The galls are produced under the direction of a tiny gall wasp (family Cynipidae) with a big scientific name, Neuroterus quercusverrucarum (syn. N. floccosus).
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