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Jumping Oak Galls: Wasp-Induced, Harmless

Tiny brown galls dropping from white oaks are jumping oak galls from a small wasp. They jump when the larva moves. Harmless to the tree; unlikely to recur heavily next year.

About Gardening: White Oak Suckering and Gall Wasps: Normal Self-Pruning, Galls Cosmetic—Imidacloprid Ineffective; Brown Bumps on Pin Oak Leaves: Harmless Leaf Galls; Tarmac Around Oak Trees Causes Root Suffocation and Bark Loss; Horned Oak Galls on Pin Oak: Serious but Manageable; Horned Oak Galls: Identification and Management on Pin and Water Oaks; Storing Acorns for Planting: Keep Them Cool and Dry; Oak Twig Galls: Identification and Management; Prickly Balls on Live Oak: Harmless Insect Galls; Leaf Galls on Red Oak: Cosmetic, No Treatment Needed; Jumping Oak Gall: Tiny Wasps Cause Leaf Drop

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