No identification made yet.
No interactions present.
The specific identity of the agent that causes these hard woody galls on Salix species is unknown, but is thought to be either a virus or a variety of phytoplasma. (See P 291 of 2nd edition of Redfern and Shirley - British Plant Galls
Ah, interesting. Something we don't yet know!
Lat/Lng: 51.4016, -0.1856
OS grid ref: TQ263685