Pear: Powdery mildew categories: Pear Pear Diseases Tree Fruits revision date: 2024-06-05 02:08 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 a characteristic gray-white powdery […]
Pear: Pseudomonas blossom blast and dieback categories: Pear Pear Diseases Tree Fruits revision date: 2022-12-05 12:00 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 petals and stems may […]
Pear: Scab categories: Pear Pear Diseases Tree Fruits revision date: 2024-06-05 02:03 Scab symptoms on pear fruitPhoto by: R.S. Byther Biology Scab on pear is a fungal disease very similar to apple scab. The disease infects during wet weather in the spring and summer. Lesions appear on leaves, petioles, twigs, and fruit. The spots enlarge […]
Pear: Stony pit categories: Pear Pear Diseases Tree Fruits revision date: 2022-12-05 12:00 Pear stony pit virus symptoms on fruitPhoto by: R.S. Byther Biology Stony pit is a virus disease of pears apparently spread by vegetative propagation (budding, grafting, rooting cuttings). Insects are not known to carry the virus. The disease primarily affects the fruit. […]
Pear: Virus diseases categories: Pear Pear Diseases Tree Fruits revision date: 2022-12-05 12:00 Apple mosaic virus foliar symptomsPhoto by: R.S. Byther Biology Virus diseases of pears in home orchards seldom cause significant problems. Symptoms of common viruses are seen on bark, leaves, and fruit. Some virus diseases may cause bark to appear roughened or blistered. […]
Pear: Aphids categories: Pear Pear Insects Tree Fruits revision date: 2024-06-05 02:04 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 also causes russeting of […]
Pear: Apple-and-thorn skeletonizer categories: Pear Pear Insects Tree Fruits revision date: 2024-06-05 10:25 Apple-and-thorn skeletonizer caterpillar feeding on leafPhoto by: A.L. Antonelli Biology The adult of the apple-and-thorn skeletonizer is a small dark-brown or reddish-brown moth. It overwinters as a pupa or an adult, with the females laying eggs in the spring. The caterpillars are […]
Pear: Brown marmorated stink bug categories: Pear Pear Insects Tree Fruits revision date: 2024-06-05 10:13 Brown marmorated stink bug damage to pear fruitPhoto by: Gerald Brust, Univ of Maryland Biology The brown marmorated stink bug (BMSB) is an introduced pest species from Asia that is spreading quickly across the United States. Nymphs and adults feed […]
Pear: Codling moth categories: Pear Pear Insects Tree Fruits revision date: 2024-06-05 02:05 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 lay eggs on leaves […]
Pear: Cutworms and armyworms categories: Pear Pear Insects Tree Fruits revision date: 2023-04-04 12:00 Climbing cutworm, dark brown and hairlessPhoto by: K. Grey Biology Cutworms and armyworms are the larvae of noctuid moths. These common moths are typically medium-sized with fairly dull coloration. The gray to tan caterpillars are hairless, nocturnal, and generally spotted, striped, […]