Crown Gall can affect Almonds, Apple, Apricot, Blackberry, Blueberry, Cherry, Filbert, Grape, Peach, Pear, Pecan, Plum, Raspberry and Walnut. Crown Gall is widespread throughout the U.S.A. and is transmitted through wounds in the roots, crowns, and stems. These wounds can occur with tools or soil water.
Fruit trees and Brambles can survive Crown Gall for many years but they are weakened so that it is harder for them to survive other stresses, there fruit will also be small and of poor quality. Galls are swellings that go around roots or crowns. They vary in there style with some being hard and others being soft. There size can vary from vary small to several inches in diameter.
If you find Crown Gall in your brambles you will have to destroy the canes that are affected or the entire plant if necessary. In fruit trees, prune galls and treat with surgeon’s paint or a bacterial paint. Destroy the infected parts that you remove. You will also need to disinfect your hands and tools between cuts so that the disease doesn’t get spread further.