Cola Nut Gall
Cola Nut Gall caused by the asexual generation of the gall wasp Andricus lignicolus they resemble marble galls but are rarely more than 15mm in diameter, and they have a rough surface. These are mature galls and are very hard. The adult emerges in early autumn and lays eggs in the buds of Turkey Oaks the first galls are purple in the winter but then turn pale brown in spring. I saw these galls all over the oak tree in a small copse and wondered why the other oak trees had non on, now I know, there was only one Turkey Oak!
Cola Nut Gall
Cola Nut Gall caused by the asexual generation of the gall wasp Andricus lignicolus they resemble marble galls but are rarely more than 15mm in diameter, and they have a rough surface. These are mature galls and are very hard. The adult emerges in early autumn and lays eggs in the buds of Turkey Oaks the first galls are purple in the winter but then turn pale brown in spring. I saw these galls all over the oak tree in a small copse and wondered why the other oak trees had non on, now I know, there was only one Turkey Oak!