Family: Flexiviridae
Genus: Carlavirus
Acronym: CVB
CVB Synonyms: chrysanthemum virus Q, chrysanthemum dwarf mottle virus, chrysanthemum mild mosaic virus, chrysanthemum necrotic mottle virus, gynura latent virus.
Causes very mild leaf-mottling or vein-clearing in some cultivars; some infected varieties show slight loss of flower quality compared with virus-free plants, and a few varieties sometimes develop brown necrotic streaks on the florets. Many cultivars are entirely infected, often without visible symptoms.
