Knopper gall - Andricus quercuscalicis

Knopper gall - Andricus quercuscalicis

Observation - Knopper gall - Andricus quercuscalicis. Description: The Knopper Gall is caused by a tiny gall wasp, Andricus quercuscalicis.

The Knopper Gall is caused by a tiny gall wasp, Andricus quercuscalicis.