Oak galls are popping up everywhere this fall! They're the tiny, fuzzy yellow or brown balls on oak leaves and branches. You ...

Oak galls may form on the branches or the leaves Maples commonly have galls form on the leaves of the trees from aphids and mites as well as on the bark. Ash trees will potentially form galls on the ...

A strange thing happened on a walk in the arboretum with the grandchildren recently. “Look, a fuzzy caterpillar!” I said, picking up an oak leaf and pointing to the fuzzy ...

Midge gall on buttonbush. Insects and mites can cause galls. These galls are often on the leaves and stems and usually look like growths or bumps that are not the same color as the rest of the leaf.