Ornamental Pear: Fire blight categories: Ornamental Pear Ornamental Pear Diseases Ornamental trees Ornamentals revision date: 2022-12-05 12:00 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 in a characteristic “shepherd’s crook.” […]
Ornamental Pear: Pear trellis rust categories: Ornamental Pear Ornamental Pear Diseases Ornamental trees Ornamentals revision date: 2022-11-28 08:55 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 leaves in western Washington. Like […]
Ornamental Pear: Powdery mildew categories: Ornamental Pear Ornamental Pear Diseases Ornamental trees Ornamentals revision date: 2022-11-27 04:06 Powdery mildew on apple leavesPhoto 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 with powdery mildew. Leaves develop […]
Ornamental Pear: Pseudomonas blossom blast and dieback categories: Ornamental Pear Ornamental Pear Diseases Ornamental trees Ornamentals revision date: 2022-11-27 04:00 Pseudomonas cankers on pear twigsPhoto 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. Leaves may be spotted. Flower […]
Ornamental Pear: Aphids categories: Ornamental Pear Ornamental Pear Insects Ornamental trees Ornamentals revision date: 2024-04-08 11:46 Green peach aphid closeupPhoto by: Unknown Biology Three aphids are commonly found infesting pear. All three species produce honeydew, a sweet, sticky material which attracts ants and that may become covered with a growth of dark sooty mold. Honeydew […]
Ornamental Pear: Codling moth categories: Ornamental Pear Ornamental Pear Insects Ornamental trees Ornamentals revision date: 2023-04-04 12:00 Codling moth feeding inside apple corePhoto by: J.F. Brunner Biology The brownish-gray wings of adult codling moths are marked with dark bands and a dark brown spot near the tip. Wingspan is up to 3/4″ across. Adult females […]
Ornamental Pear: Pear slug (pear sawfly) categories: Ornamental Pear Ornamental Pear Insects Ornamental trees Ornamentals revision date: 2023-04-04 12:00 Pear slug and damaged leaf from feedingPhoto by: R.D. Akre Biology The pear sawfly is also known as the pear slug (or ‘cherry slug’ when on cherry) because of its resemblance to a small, dark slug. […]
Ornamental Pear: Pearleaf blister mite categories: Ornamental Pear Ornamental Pear Insects Ornamental trees Ornamentals revision date: 2024-04-08 11:46 Pearleaf blister mite damagePhoto by: C.R. Foss Biology Pearleaf blister mites are tiny, white to yellowish eriophyid mites that feed on leaves and fruit. Damage on leaves is caused by mites feeding inside the leaf tissues, resulting […]