Ornamental Pear: Fire blight Categories: Ornamental Pear Ornamental Pear Diseases Ornamental trees Ornamentals Last review date: 2026-08-28 02:29 Last edit date: Biology Fire blight is a bacterial infection which typically attacks via wounds or blossoms. Initially, twigs and flowers appear water soaked. Infected tissues quickly turn brown to black and die back, often bending over […]
Ornamental Pear: Pear trellis rust Categories: Ornamental Pear Ornamental Pear Diseases Ornamental trees Ornamentals Last review date: 2025-06-29 11:27 Last edit date: Upper and lower leaf surface on Pyrus sp. Photo by: F. Geller-Grimm, commons.wikimedia.org Biology Pear trellis rust is a fungal disease that attacks pear trees and junipers. It is commonly reported on pear […]
Ornamental Pear: Powdery mildew Categories: Ornamental Pear Ornamental Pear Diseases Ornamental trees Ornamentals Last review date: 2025-06-29 11:07 Last edit date: Powdery mildew on apple leaves Photo by: R.S. Byther Biology Powdery mildew is a fungal disease found on twigs, leaves, blossoms, and fruit. New growth is particularly susceptible. The entire terminal may become covered […]
Ornamental Pear: Pseudomonas blossom blast and dieback Categories: Ornamental Pear Ornamental Pear Diseases Ornamental trees Ornamentals Last review date: 2026-08-28 01:34 Last edit date: Pseudomonas cankers on pear twigs Photo by: R.S. Byther Biology Blossom blast and dieback is caused by a bacterial infection. The infection causes buds to turn a papery brown and die. […]