Acorn Weevil

Oak woodlands, forests, and parks where oak trees are present.

Adults feed on oak leaves and the soft inner tissue of young acorns; larvae feed exclusively on the nutmeat inside the acorn.

Females use their long snouts to drill holes into green acorns and lay their eggs inside. Once the acorn falls to the ground, the larvae chew their way out and burrow into the soil to pupate, which can take 1 to 2 years.

They are harmless to humans and pets. While they can decrease the germination rates of oak seeds, they serve as a vital food source for birds, small mammals, and soil-disturbing organisms.