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Gall Wasps

knots on a tree limb cause by wasps

The knots on this oak tree are caused by a tiny wasp.

Les Harrison is the UF/IFAS Wakulla County Extension Director

Mothers want what is best for their offspring. Surprisingly, one of the greatest mothers of all may be the tiny wasp, Callirhytis. Often mistaken as a fly, the gall wasp provides her young with all of the food and comfort any loving mother would give. Strange as they may be, the galls found on oak trees are a source of shelter and sustenance for baby wasps. Read the full article here!