andricus quercuscalicis - Gardening Tips
Foxes always feed on blackberries in season. The smooth one in your photograph is the marble gall caused by Andricus kollari. And the knobbly one is knopper gall, caused by Andricus quercuscalicis.
May 18, 2026
Foxes always feed on blackberries in season. The smooth one in your photograph is the marble gall caused by Andricus kollari. And the knobbly one is knopper gall, caused by Andricus quercuscalicis.