Mountain Ash Diseases

Mountain Ash: Fire blight categories: Mountain Ash Mountain Ash Diseases Ornamental trees Ornamentals last review date: 2025-07-07 09:45 Cotoneaster fire blightPhoto by: R. Maleike Biology Fire blight is a bacterial infection of shoots which enters the plant through blossoms, vigorously growing shoot tips, young leaves, and wounds. Blossom clusters appear blighted. Shoots suddenly wilt, turn […]

Mountain Ash: Nectria canker categories: Mountain Ash Mountain Ash Diseases Ornamental trees Ornamentals last review date: 2025-07-07 09:46 Nectria canker fruiting bodiesPhoto by: R.S. Byther Biology Nectria canker is a fungal disease often found on twigs and branches that have been weakened by drought, frost damage, insect damage, or other diseases. Cankers are initially distinguished […]