Pest Management Fact Sheet #5095 Bruce A. Watt, Extension Plant Pathologist For information about UMaine Extension programs and resources, visit extension.umaine.edu. Find more of our publications and books at https://extension.umaine.edu/publications/. Introduction Crown Gall is a common disease of many woody shrubs and some herbaceous plants. It is caused by the bacterium Agrobacterium tumefaciens which
