Fact Sheets

Plum, Prune (Fresh): Aphids

Plum, Prune (Fresh): Aphids categories: Plum, Prune (fresh) Plum, Prune (Fresh) Insects Tree Fruits revision date: 2024-04-08 11:46 Leaf curl plum aphidPhoto by: A.L. Antonelli Biology Several aphid species can be found on plums, including the hop aphid and the leaf curl plum aphid. The hop aphid is yellowish to dark green. The leaf curl […]

Plum, Prune (Fresh): Apple-and-thorn skeletonizer

Plum, Prune (Fresh): Apple-and-thorn skeletonizer categories: Plum, Prune (fresh) Plum, Prune (Fresh) Insects Tree Fruits revision date: 2022-12-05 12:00 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 […]

Plum, Prune (Fresh): Brown marmorated stink bug

Plum, Prune (Fresh): Brown marmorated stink bug categories: Plum, Prune (fresh) Plum, Prune (Fresh) 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 […]

Plum, Prune (Fresh): Earwigs

Plum, Prune (Fresh): Earwigs categories: Plum, Prune (fresh) Plum, Prune (Fresh) Insects Tree Fruits revision date: 2023-04-04 12:00 Adult European earwigPhoto by: M. Bush Biology Earwigs are reddish-brown insects about 3⁄4″ or less in length. Both males and females have pincers at the rear end. Earwigs are largely beneficial, feeding on many pests such as […]

Plum, Prune (Fresh): Fruittree leafroller

Plum, Prune (Fresh): Fruittree leafroller categories: Plum, Prune (fresh) Plum, Prune (Fresh) Insects Tree Fruits revision date: 2022-12-05 12:00 Greenish leafroller larva with brown headPhoto by: K. Grey Biology The larvae of the fruittree leafroller feed on leaves, flower parts, and sometimes young fruit. They are pale to dark green with a shiny black head […]

Plum, Prune (Fresh): Leafhoppers

Plum, Prune (Fresh): Leafhoppers categories: Plum, Prune (fresh) Plum, Prune (Fresh) Insects Tree Fruits revision date: 2022-12-05 12:00 Leafhoppers and damage on apple leafPhoto by: E.H. Beers Biology Leafhoppers are typically found on the underside of leaves. Immature leafhoppers (nymphs) are usually less than 1⁄10″ long and white to greenish or yellowish in color. Adults […]

Plum, Prune (Fresh): Pacific flatheaded borer

Plum, Prune (Fresh): Pacific flatheaded borer categories: Plum, Prune (fresh) Plum, Prune (Fresh) Insects Tree Fruits revision date: 2022-12-05 12:00 Pacific flatheaded borer adultPhoto by: K. Grey Biology The Pacific flatheaded borer typically attacks weakened, injured, or stressed trees. The larvae feed between the bark and the sapwood. They can weaken and girdle trees. Injured […]

Plum, Prune (Fresh): Peach twig borer

Plum, Prune (Fresh): Peach twig borer categories: Plum, Prune (fresh) Plum, Prune (Fresh) Insects Tree Fruits revision date: 2022-12-05 12:00 Peach twig borer caterpillarPhoto by: K. Grey Biology The peach twig borer attacks both shoots and fruit. In the spring, overwintering larvae bore down the center of shoots, causing the tip to wilt or “flag”. […]

Plum, Prune (Fresh): Peachtree borer

Plum, Prune (Fresh): Peachtree borer categories: Plum, Prune (fresh) Plum, Prune (Fresh) 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 […]

Plum, Prune (Fresh): Pear slug

Plum, Prune (Fresh): Pear slug categories: Plum, Prune (fresh) Plum, Prune (Fresh) Insects Tree Fruits revision date: 2022-12-05 12:00 Pear slug and damaged leaf from feedingPhoto by: R.D. Akre Biology The pear sawfly is also known as the pear slug because of its resemblance to a small, dark slug. These insects are the larval stage […]

Plum, Prune (Fresh): Scale insects

Plum, Prune (Fresh): Scale insects categories: Plum, Prune (fresh) Plum, Prune (Fresh) Insects Tree Fruits revision date: 2024-04-08 11:46 Lecanium scales on twigPhoto by: R.S. Byther Biology Scale insects found on prune and plum include the San Jose scale and the lecanium scale. San Jose scales are about 1/16″ across and are found on twigs, […]

Plum, Prune (Fresh): Shothole borer

Plum, Prune (Fresh): Shothole borer categories: Plum, Prune (fresh) Plum, Prune (Fresh) Insects Tree Fruits revision date: 2022-12-05 12:00 Shothole borer holes on applePhoto by: R.S. Byther Biology Shothole borers are small (1/10″ or less), brown to black, stubby-nosed beetles. Adults feed at the base of leaves or twigs. Later, they bore into the bark […]

Plum, Prune (Fresh): Spider mites

Plum, Prune (Fresh): Spider mites categories: Plum, Prune (fresh) Plum, Prune (Fresh) Insects Tree Fruits revision date: 2024-04-08 11:46 Spider mites under microscopePhoto by: L.K. Tanigoshi Biology Several species of spider mites can be found on plums. They range in color from pale yellowish or green to red or brown. Spider mites feed on the […]

Plum, Prune (Fresh): Spotted wing Drosophila (SWD)

Plum, Prune (Fresh): Spotted wing Drosophila (SWD) categories: Plum, Prune (fresh) Plum, Prune (Fresh) Insects Tree Fruits revision date: 2023-04-12 12:00 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 […]