Agrobacterium tumefaciens


The Agrobacterium tumefaciens bacterium causes irregular woody masses known as crown galls to form on the roots, trunks or branches of various species of tree including the Horse-chestnut.

Identification difficulty

Wherever suitable host trees are found.

When to see it

All year round.

UK Status

Status in Britain not known.

VC55 Status

Status in Leicestershire and Rutland not known.

Leicestershire & Rutland Map


Yellow squares = NBN records (all known data)
Coloured circles = NatureSpot records: 2020+ | 2015-2019 | pre-2015

UK Map