You are here

Galls and Deformities

Galls and deformities

Familiar plants with a growth or swelling on the stem often produced by insects laying eggs in the stem.


The information about this group of species has been organised into reports, charts, maps and photos. Click a pic below to see the detail:

Distribution Map Some Charts Some Photographs Sites List Records List Recent Records Guidance Notes

For more information about a species click/tap its photograph:

Crown Gall


Knopper Gall

Andricus quercuscalicis

Marble gall

Andricus kollari

Oak Apple Gall

Biorhiza pallida

Cherry Gall

Cynips quercusfolii

Silk Button Gall (N numismalis)

Neuroterus numismalis

Spangle Gall

Neuroterus quercusbaccarum f. agamic

Alder Gall Mite

Eriophyes laevis

Witches Brooms

Taphrina betulina

Bedeguar Gall

Diplolepsis rosae

Speedwell Gall-fly

Jaapiella veronicae

Thistle Gall

Urophora cardui

Gall mite (A echii)

Aceraria echii

Serpentine Leaf Miner (S aurella)

Stigmella aurella

Gorse Spider-mite

Tetranychus lintearius