what trees are affected by crown gall
In Minnesota, the most commonly affected woody plants are roses (Rosa spp. ), willow (Salix spp. ), poplar (Populus spp. ) and fruit trees like apple (Malus spp. ), cherry, plum or apricot (Prunus spp. ). All of these plants are highly susceptible to crown gall.rown gall is caused by the bacterium, Agrobacterium tumefaciens. This pathogen is found on more than 600 different species of plants worldwide including many common vegetables, weeds, deciduous and evergreen trees and shrubs.