Apple chlorotic leafspot virusApple chlorotic leafspot virus is a plant pathogenic virus of the family Betaflexiviridae.DamagesThis virus reduces tree vigor, reduces yield, and causes quality reduction on fruits.PathogenThis virus is a trichovirus with filamentous particles. It has no natural vectors and it is easily transmitted mechanically to herbaceous hosts.TransmissionThe virus is only transmitted by grafting using infected clonal rootstocks, top-working existing trees with infected scion cultivars, and using infected trees as a source of propagation materials.