Symptoms and virus inclusions of Tobacco ringspot nepovirus in the host Zamia furfuracea, the Cardboard Cycad.
TobRSV is a widespread nepovirus in annual crops in North America that infects tobacco, soybean, blueberry, apple, ash, autumn crocus, blackberry, cherry, dogwood, elderberry, grapevine, spearmint, and in Wisconsin has an economically important impact on cucurbits.