Apricot: Bacterial canker categories: Apricot Apricot Diseases Tree Fruits revision date: 2023-01-09 12:00 Bacterial canker on apricotPhoto by: R.S. Byther Biology Bacterial canker is favored by cool, wet weather and is common in western Washington. The bacteria overwinter in cankers, buds and other host tissues. Dark, cankered areas on trunks and branches may develop and […]
Apricot: Brown rot categories: Apricot Apricot Diseases Tree Fruits revision date: 2022-12-05 12:00 Brown rot on apricot fruitPhoto by: R.S. Byther Biology Brown rot is a blossom-infecting fungal disease. Infected flowers wilt and die. The brown blossoms remain attached to the twigs, becoming covered with a grayish-brown fungal growth during wet weather. Blossom or fruit […]
Apricot: Cytospora canker categories: Apricot Apricot Diseases Tree Fruits revision date: 2022-12-05 12:00 Cytospora-infected peach twigsPhoto by: R.S. Byther Biology The fungi which cause Cytospora canker attack through wounds on twigs and branches. Initial cankers are small, but enlarge quickly and may streak up and down the stems without girdling. The cankers may also girdle […]
Apricot: Shothole (Coryneum blight) categories: Apricot Apricot Diseases Tree Fruits revision date: 2023-01-09 12:00 Coryneum blight symptoms: shothole, leaf spot, and fruit spotPhoto by: R.S. Byther Biology Shothole is a fungal disease which attacks leaves, buds, blossoms, fruits, and twigs. Twig cankers are rare on apricot. On apricot, the fungus often infects and kills buds, […]
Apricot: Silver leaf categories: Apricot Apricot Diseases Tree Fruits revision date: 2022-12-05 12:00 Silver leaf on apricotPhoto by: R.S. Byther Biology Silver leaf is a fungal disease affecting cherry, apricot, plum, and other stone fruits. The fungus typically grows on dead wood, but it can infect living tissues through wounds and become systemic (established throughout […]
Apricot: Brown marmorated stink bug categories: Apricot Apricot Insects Tree Fruits revision date: 2023-04-04 12:00 Brown marmorated stink bug adultPhoto by: M. Bush 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 on a wide variety of plant […]
Apricot: Peach twig borer categories: Apricot Apricot Insects Tree Fruits revision date: 2023-04-12 12:00 Peach twig borer caterpillarPhoto by: K. Grey Biology The peach twig borer is an important pest of apricots, particularly in eastern Washington. In the spring, overwintering larvae bore down the center of shoots, causing the tip to wilt or “flag”. Each […]
Apricot: Peachtree borer categories: Apricot Apricot Insects Tree Fruits revision date: 2022-12-05 12:00 Peachtree borer and damage at base of treePhoto by: K. Grey Biology The peachtree borer adult is a dark, bluish, clear-winged moth which somewhat resembles a wasp or hornet. The female, which has dark forewings and a red-orange band on the abdomen, […]