Leaves often have a marginal necrosis.
Vascular discoloration, which is characteristic of this disease on other hosts, may not be present in artichoke plants. It is possible that only stressed plants will show indications of infection by this pathogen. Verticillium dahliae produces microsclerotia that can survive for many years in the soil without host plants present. Do not take crowns to be used for propagation from fields where the disease has occurred. The Regents of the University of California.