Phomopsis cotoneastri as a Pathogen Associated with Trunk Cankers and Death of Young Apple Trees cv. Cripps Pink

This is the first report of Phomopsis cotoneastri as a pathogen isolated from sunken cankers in trunks of young apple trees cv. Cripps Pink that had died in the first year after planting. Phomopsis cotoneastri was identified by sequence analysis of part of the translation elongation factor 1‐alpha gene (EF1‐α). Pathogenicity of two isolates of P. cotoneastri was demonstrated in field conditions.