Apple chlorotic leafspot virus
Family: Flexiviridae
Genus: Trichovirus
Acronym: ACLSV
ACLSV Synonyms: pear ring pattern mosaic virus, apple latent virus type 1
ACLSV is often found in woody rosaceous plants including apple, apricot, cherry, peach, pear and plum.
Though ACLSV infection is symptomless in most commercial apple varieties, the virus causes topworking disease of apple trees grown on Maruba kaido (Malus prunifolia var. ringo) rootstocks in Japan, plum bark split, plum pseudopox, pear ring pattern mosaic, and apricot pseudopox diseases.

