Submission - 03/08/2020

Sighting - 2020-07-31

Species Seen Knopper Gall of Andricus quercus-calicis (a wasp) on acorn
Scientific Name Andricus quercuscalicis (Burgsdorf 1783)
Recorder Rob Randall
Record Status Confirmed
Identifier Rob Randall
Identified on 03/08/2020
Location ST753653
Phase Gall
Locality Henrietta Park
Parish Bathwick, Bath
Habitat Acorns of Pedunculate Oak
Notes A common gall of oak trees. It has an alternative stage in its life cycle when it produces galls on the roots of Turkey Oak. The knopper gall is at the bottom in the photo showing the leaves. Above it is the gall produced by another wasp, Andricus grossulariae.