Blackberry Diagnostic Tool
Department of Horticultural Science
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Blackberry Diagnostic Tool

Crown and Roots Have Galls

Crown and roots

Crown gall (Agrobaterium tumefaciens) can damage canes at the root level. Some cultivars may exhibit low vigor or nutrient deficiencies. Galls are visible at the soil line. The bacteria infects canes through wounds.

Crown gall Crown gall

 

Roots

 
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Created by G.E. Fernandez November 2004; design by C.T. Glenn;
maintained by G.E. Fernandez; last revised on June 26, 2006