grapevine virus d grapevine virus d grapevine virus d (gvb) is a plant virus species in the genus vitivirus, associated with rugose wood condition of grapevine. grape vine virus d virus classification (unranked): virus realm: riboviria kingdom: orthornavirae phylum: kitrinoviricota class: alsuviricetes order: tymovirales family: betaflexiviridae genus: vitivirus species: grape vine virus d