A Potential Cure on the Horizon for Horse Chestnut Bleeding Canker
Bleeding Canker in Horse Chestnut trees is caused by the bacteria Pseudomonas syringae pv. aesculi, and has only recently been recorded in Europe. Bleeding Canker is a vascular disease, which appears to be spread through ground water from tree to tree and the control of the disease has, up until recently, been considered to be impossible.
This is because the bacteria, once in a host, will multiply in the comfortable environment of the cambial area which surrounds the whole surface of the tree beneath its bark from the major roots up to the finer branches.
Consequently, any combating anti bacterial agent must be able to travel around the tree, kill the bacteria, have no detrimental effects upon the tree and importantly have no harmful effect upon any organisms which live in, feed off or rely upon the tree in any way.