Peach: Bacterial canker Categories: Peach Peach Diseases Tree Fruits Last review date: 2025-09-13 02:38 Bacterial canker on tree trunk Photo 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 […]
Peach: Brown rot Categories: Peach Peach Diseases Tree Fruits Last review date: 2025-09-13 02:40 Brown rot infected peach Photo 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 […]
Peach: Crown gall Categories: Peach Peach Diseases Tree Fruits Last review date: 2025-09-13 02:41 Large gall on crown Photo by: R.S. Byther Biology Crown gall is caused by a soilborne bacterium. The bacteria infect through wounds on the crown and roots. Young galls are fleshy, white, enlarged masses on the roots or stems. Older galls […]
Peach: Cytospora canker Categories: Peach Peach Diseases Tree Fruits Last review date: 2025-09-13 02:42 Cytospora-infected peach twigs Photo 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 […]
Peach: Leaf curl Categories: Peach Peach Diseases Tree Fruits Last review date: 2025-09-13 02:43 Peach leaf curl distorted growth Photo by: R.S. Byther Biology Peach leaf curl is a fungal disease affecting primarily the leaves and shoots. Fruit is occasionally attacked. Young leaves develop yellow to reddish discoloration and become thickened, crisp, and crinkled. Affected […]
Peach: Powdery mildew Categories: Peach Peach Diseases Tree Fruits Last review date: 2025-09-13 04:12 Powdery mildew on peach fruit showing white fungal spot Photo by: R.S. Byther Biology Powdery mildew of peach attacks leaves, young shoots, and fruit. This fungal disease produces a characteristic white, powdery coating on the surface of affected leaves. Older leaves […]
Peach: Shothole (Coryneum blight) Categories: Peach Peach Diseases Tree Fruits Last review date: 2025-09-13 04:15 Coryneum blight stem cankers Photo by: R.S. Byther Biology Shothole is a fungal disease typically attacking buds, twigs, and fruit. Infected buds are killed and covered with a shiny, gummy material. Twigs develop small, raised purplish areas which later become […]
Peach: X-disease Categories: Peach Peach Diseases Tree Fruits Last review date: 2025-09-13 04:19 Peach x-disease symptoms on leaves Photo by: Unknown Biology X-disease of peaches is caused by a mycoplasma-like organism (MLO). The MLO is transmitted by leafhoppers. Symptoms of infection typically appear in the summer. Leaves exhibit irregular yellow spotting. Leaves roll and the […]
Peach: Aphids Categories: Peach Peach Insects Tree Fruits Last review date: 2025-09-13 04:32 Green peach aphid closeup Photo by: Unknown Biology The green peach aphid is a soft-bodied, green aphid up to 1⁄8″ in length. It is typically found on peach leaves in the spring, where it feeds on sap sucked from the plant tissues. […]
Peach: Brown marmorated stink bug Categories: Peach Peach Insects Tree Fruits Last review date: 2025-08-19 09:23 Brown marmorated stink bugs feeding on peach fruit Photo by: G. Bernon, USDA APHIS, bugwood.org Biology The brown marmorated stink bug (BMSB) is an introduced pest species from Asia that is spreading quickly across the United States. Nymphs and […]
Peach: Earwigs Categories: Peach Peach Insects Tree Fruits Last review date: 2025-09-13 04:34 European earwig found feeding on interior of peach Photo by: M. Bush Biology Earwigs are reddish-brown insects about 3⁄4 inch or less in length. Both males and females have pincers at the rear end. Earwigs are largely beneficial, feeding on many pests […]
Peach: European red mite Categories: Peach Peach Insects Tree Fruits Last review date: 2025-12-03 10:06 European red mite Photo by: Unknown Biology Several species of spider mites may be found on peaches, including the European red mite, the two-spotted spider mite, and the McDaniel spider mite. They may be various colors including yellow, greenish, brown, […]
Peach: Leafrollers Categories: Peach Peach Insects Tree Fruits Last review date: 2025-09-13 04:37 Leafroller damage showing rolled and damaged leaves Photo by: A.L. Antonelli Biology appearance but and fruittree leafrollers may feed on peach. The larvae may feed on leaves or buds, or cause surface damage on young fruit. Fruittree leafrollers are pale to dark […]
Peach: Peach twig borer Categories: Peach Peach Insects Tree Fruits Last review date: 2025-09-13 04:38 Peach twig borer caterpillar Photo by: K. Grey Biology The peach twig borer is an important pest of peaches, particularly in eastern Washington. In the spring, overwintering larvae bore down the center of shoots, causing the tip to wilt or […]
Peach: Peachtree borer Categories: Peach Peach Insects Tree Fruits Last review date: 2025-09-13 04:41 Peachtree borer and damage at base of tree Photo 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 […]
Peach: Spotted wing Drosophila (SWD) Categories: Peach Peach Insects Tree Fruits Last review date: 2025-09-14 09:55 Spotted wing drosophila larva and fruit damage Photo by: W. Hoashi-Erhardt Biology Spotted wing Drosophila (SWD) resembles other Drosophila species (fruit flies or vinegar flies) in appearance, but unlike other members of the family which attack only overripe, damaged […]