Fact Sheets

Peach: Powdery mildew

Peach: Powdery mildew categories: Peach Peach Diseases Tree Fruits revision date: 2024-06-05 02:03 Powdery mildew on peach fruit showing white fungal spotPhoto 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 may show […]

Peach: Shothole (Coryneum blight)

Peach: Shothole (Coryneum blight) categories: Peach Peach Diseases Tree Fruits revision date: 2024-06-05 02:07 Coryneum blight stem cankersPhoto 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 elongate brown […]

Peach: X-disease

Peach: X-disease categories: Peach Peach Diseases Tree Fruits revision date: 2022-12-05 12:00 Peach x-disease symptoms on leavesPhoto 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 spots die […]

Peach: Aphids

Peach: Aphids categories: Peach Peach Insects Tree Fruits revision date: 2024-06-05 10:14 Green peach aphid closeupPhoto 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. Heavy infestations […]

Peach: Brown marmorated stink bug

Peach: Brown marmorated stink bug categories: Peach Peach Insects Tree Fruits revision date: 2023-04-04 12:00 Brown marmorated stink bugs feeding on peach fruitPhoto 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 adults feed […]

Peach: Earwigs

Peach: Earwigs categories: Peach Peach Insects Tree Fruits revision date: 2024-06-15 12:07 European earwig found feeding on interior of peachPhoto 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 such as […]

Peach: European red mite

Peach: European red mite categories: Peach Peach Insects Tree Fruits revision date: 2024-06-05 08:29 European red mite Photo by: Unknown Biology Several species of spider mites may be found on peaches, including the European red mite, the twospotted spider mite, and the McDaniel spider mite. They may be various colors including yellow, greenish, brown, or […]

Peach: Leafrollers

Peach: Leafrollers categories: Peach Peach Insects Tree Fruits revision date: 2024-06-05 10:25 Leafroller damage showing rolled and damaged leavesPhoto by: A.L. Antonelli Biology Pandemis 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 green with a […]

Peach: Peach twig borer

Peach: Peach twig borer categories: Peach Peach Insects Tree Fruits revision date: 2024-06-05 10:40 Peach twig borer caterpillarPhoto 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 “flag”. Each […]

Peach: Peachtree borer

Peach: Peachtree borer categories: Peach Peach Insects Tree Fruits revision date: 2024-06-05 10:40 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, […]

Peach: Spotted wing Drosophila (SWD)

Peach: Spotted wing Drosophila (SWD) categories: Peach Peach Insects Tree Fruits revision date: 2024-06-05 02:08 Spotted wing drosophila larva and fruit damagePhoto 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 or decaying […]

Filbert: Bacterial blight

Filbert: Bacterial blight categories: Filbert Filbert Diseases Tree Fruits revision date: 2024-06-05 10:24 Canker on twig caused by filbert bacterial blightPhoto by: Unknown Biology Bacterial blight of filbert may attack buds, leaves, twigs, branches, and the trunk. Infected buds may be killed before leafing out. Leaves initially develop pale green, water-soaked spots, which later turn […]

Filbert: Eastern filbert blight

Filbert: Eastern filbert blight categories: Filbert Filbert Diseases Tree Fruits revision date: 2024-06-05 02:03 Eastern filbert blight pustules on twigPhoto by: R.S. Byther Biology Eastern filbert blight is a fungal disease found on both cultivated and wild filberts. The disease typically infects via wounds caused by mechanical or insect damage. Buds damaged by the filbert […]

Filbert: Powdery mildew

Filbert: Powdery mildew categories: Filbert Filbert Diseases Tree Fruits revision date: 2022-12-05 12:00 Powdery mildew fungal structures on filbert leafPhoto by: R.S. Byther Biology Powdery mildew is a fungal disease found on leaves and succulent shoots of hazelnut. A characteristic powdery white growth occurs on the underside of leaves and sometimes also covers shoot tips. […]

Filbert: Apple mealybug

Filbert: Apple mealybug categories: Filbert Filbert Insects Tree Fruits revision date: 2022-12-05 12:00 Apple mealybugs and nests on twigsPhoto by: E.H. Beers Biology Apple mealybugs are gray, flat, scale-like insects found on trees during winter and spring. They are typically found in cottony clusters on twigs and the underside of leaves, often on new growth. […]

Filbert: Brown marmorated stink bug

Filbert: Brown marmorated stink bug categories: Filbert Filbert Insects Tree Fruits revision date: 2022-12-05 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 […]

Filbert: Filbert aphid

Filbert: Filbert aphid categories: Filbert Filbert Insects Tree Fruits revision date: 2024-06-05 10:40 Aphid colony on leafPhoto by: A.L. Antonelli Biology Filbert aphids are small, yellowish-green, pear-shaped insects typically found on the leaves. Aphids are often found in colonies on the tender new growth. Heavy aphid feeding may result in stunting and distortion of leaves […]

Filbert: Filbert bud mite

Filbert: Filbert bud mite categories: Filbert Filbert Insects Tree Fruits revision date: 2022-12-05 12:00 Swollen filbert bud from mite feedingPhoto by: R.S. Byther Biology Filbert bud mites are tiny eriophyid mites which feed in the leaf and flower buds. The mites are yellowish and sausage-shaped and are difficult to see with the unaided eye. Mite […]

Filbert: Filbert leafroller

Filbert: Filbert leafroller categories: Filbert Filbert Insects Tree Fruits revision date: 2022-12-05 12:00 Filbert leafroller larva causing damage on leafPhoto by: K. Grey Biology The filbert leafroller is a greenish caterpillar with a light to dark brown head. The caterpillars are about 3⁄4″ long at maturity. They feed inside webbed or rolled leaves, typically near […]

Filbert: Filbertworm

Filbert: Filbertworm categories: Filbert Filbert Insects Tree Fruits revision date: 2024-06-05 10:40 Nut damaged by filbertworm larvaPhoto by: K. Grey Biology The filbertworm is the larval stage of a gray to reddish moth. The adult moth has copper- to gold-colored bands across the forewings and a wingspread of approximately 1⁄2″. The female moth lays eggs […]