Crown gall—Agrobacterium spp.
Crown gall is characterized by wartlike growths on roots, crown area, or canes. Severely infected plants
may be stunted.
Solutions
The bacteria that causes crown gall survives in soil and can be spread by splashing water and pruning
or cultivating tools. Plants can be infected through pruning wounds, growth cracks, injured roots, or
freezing injuries. Cut out infected canes during hot, dry weather (disinfect pruning tools before using
on healthy plants). Remove and destroy severely infected plants. Be careful not to injure plants while
planting, trellising, cultivating, or harvesting. Obtain quality plants from nurseries. Avoid susceptible
varieties. | 
Galls
on blackberry roots
|
