Filbert: Apple mealybug categories: Filbert Filbert Insects Tree Fruits last review date: 2025-09-14 10:17 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 […]
Filbert: Brown marmorated stink bug categories: Filbert Filbert Insects Tree Fruits last review date: 2025-08-19 10:04 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 […]
Filbert: Filbert aphid categories: Filbert Filbert Insects Tree Fruits last review date: 2025-09-14 10:18 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 […]
Filbert: Filbert bud mite categories: Filbert Filbert Insects Tree Fruits last review date: 2025-09-14 10:20 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. […]
Filbert: Filbert leafroller categories: Filbert Filbert Insects Tree Fruits last review date: 2025-09-14 10:20 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 […]
Filbert: Filbertworm categories: Filbert Filbert Insects Tree Fruits last review date: 2025-09-14 10:38 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 […]
Filbert: Lecanium scale categories: Filbert Filbert Insects Tree Fruits last review date: 2025-09-14 10:53 Lecanium scales on twigPhoto by: R.S. Byther Biology Lecanium scales are shiny brown insects found on twigs. Adults are 1/8″-1/4″ in diameter and roughly turtle-shaped. They may have light markings or appear somewhat waxy. Crawlers (immature scales) are flatter. Scales produce […]
Filbert: Omnivorous leaftier categories: Filbert Filbert Insects Tree Fruits last review date: 2025-09-14 10:54 Necrosis on leaf from leaftier feedingPhoto by: K. Grey Biology The omnivorous leaftier is the caterpillar of a bell-shaped tortricid moth. The small larvae tend to be quite active when disturbed, often wiggling vigorously backwards or dropping from the plant on […]
Filbert: Tent caterpillars categories: Filbert Filbert Insects Tree Fruits last review date: 2025-09-14 10:56 Tent caterpillars and webbingPhoto by: R.S. Byther Biology Two species of tent caterpillar are common in Washington. The forest tent caterpillar is about 2″ long at maturity and has a bluish body with black and white markings. This species makes silk […]