Crown Gall - Rose Tree Bacterial Crown Gall Disease

Crown gall, a disease of roots and stems, occurs on a large number of plants. In Washington, it is probably most serious on cherries, apples, and a few other tree fruits. It is also a problem on roses and several other ornamental trees and shrubs. Crown gall and the very similar cane gall also affect raspberries and blackberries.

Otis C. Maloy, Extension Plant Pathologist (retired), and Arlen D. Davison, Superintendent and Assistant Dean, WSU Puyallup. EB 923. Reviewed 1996. Slightly revised October 2002, Dave Pehling, Snohomish Co. Extension Analyst