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Extension > Garden > Diagnose a problem > What's wrong with my plant? > Deciduous Trees > Oak > Holes in acorns

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Oak > Acorns > Holes in acorns

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  • Image: Acorn weevil 1
  • Image: Acorn weevil 2
  • Image: Acorn weevil 3

Acorn weevil
Curculio spp.

  • Round, pin-head sized holes drilled into acorn surface
  • Adults ¼ inch in length with brown, hard body; long curved snout that is as long or longer than the body
  • Damage seen in August and September
  • More information on Acorn weevil

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