Agriculture > All Agriculture > ANR-0944

Crown Gall Of Ornamentals
Jacqueline Mullen
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Publication Date: 11/10/2003

Crown gall is a soilborne bacterial disease caused by Agrobacterium tumefaciens. The host range of this bacterium is very wide and includes annual periwinkle, arborvitae, ash, begonia, birch, cactus, camellia, chrysanthemum, coleus, coreopsis, cypress, dianthus, dogwood, elm, euonymus, fig, gardenia, geranium, hawthorne, holly, hydrangea, impatiens, ivy, juniper, kalanchoe, ligustrum, maple, marigold, oxalis, pachysandra, pecan, petunia, philodendron, phlox, poplar, prunus, pyracantha, oak, ornamental pear, rhododendron, rose, Russian olive, saintpaulia, salvia, sunflower, verbena, viburnum, willow, wisteria, zinnia, and more. In addition to ornamentals, cotton, grape, tobacco, and many vegetables are also susceptible to attack by A. tumefaciens.