galls

Galls of fruit fly Urophora cardui on Creeping Thistle, ©Zoe Raven, Stoke Wood, Stoke Goldington 12 August 2018

Galls of fruit fly Urophora cardui on Creeping Thistle, ©Zoe Raven, Stoke Wood, Stoke Goldington 12 August 2018

Galls of fruit fly Urophora cardui on Creeping Thistle, ©Zoe Raven, Stoke Wood, Stoke Goldington 12 August 2018