Fact Sheets

Currant, Gooseberry: Anthracnose (Leaf spot)

Currant, Gooseberry: Anthracnose (Leaf spot) categories: Currant/Gooseberry Currant/Gooseberry Diseases Small Fruits revision date: 2022-12-06 12:00 Anthracnose on currantPhoto by: R.S. Byther Biology Anthracnose is a fungal disease affecting the leaves of currants and gooseberries. Leaves show small, round or irregularly-shaped spots on the upper or lower surfaces. The spots are usually dark brown in color […]

Currant, Gooseberry: Powdery mildew

Currant, Gooseberry: Powdery mildew categories: Currant/Gooseberry Currant/Gooseberry Diseases Small Fruits revision date: 2024-06-05 10:40 Powdery mildew on gooseberryPhoto by: R.S. Byther Biology Powdery mildew is a fungal disease. Characteristic white patches of powdery fungal growth develop on shoots, fruit, and either or both sides of the leaves. Infected tissues are often stunted and distorted, and […]

Currant, Gooseberry: Brown marmorated stink bug

Currant, Gooseberry: Brown marmorated stink bug categories: Currant/Gooseberry Currant/Gooseberry Insects Small Fruits revision date: 2022-12-06 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 […]

Currant, Gooseberry: Currant aphids

Currant, Gooseberry: Currant aphids categories: Currant/Gooseberry Currant/Gooseberry Insects Small Fruits revision date: 2024-04-08 11:46 Currant aphid damagePhoto by: A.L. Antonelli Biology Currant aphids are common on currants and are found occasionally on gooseberries. The aphids are small, soft-bodied, pear-shaped, yellowish insects. They typically feed on the underside of leaves, causing cupping and distortion of leaves. […]

Currant, Gooseberry: Gooseberry maggot (Currant fruit fly)

Currant, Gooseberry: Gooseberry maggot (Currant fruit fly) categories: Currant/Gooseberry Currant/Gooseberry Insects Small Fruits revision date: 2024-06-05 10:40 Currant fruit fly larvaPhoto by: K. Grey Biology The gooseberry maggot is the larval stage of the currant fruit fly. The adult flies are about 1⁄5″ long, yellow to orange in color, and have dark bands across the […]

Currant, Gooseberry: Imported currantworm

Currant, Gooseberry: Imported currantworm categories: Currant/Gooseberry Currant/Gooseberry Insects Small Fruits revision date: 2024-06-05 08:28 Imported currantwormPhoto by: K. Grey Biology The imported currantworm is the larva of a sawfly. The adult sawfly is black and yellow and is about 1⁄3″ in length. The female lays eggs on the underside of leaves, near the midrib. The […]

Blueberry: Botrytis blight

Blueberry: Botrytis blight categories: Blueberry Blueberry Diseases Small Fruits revision date: 2022-12-06 12:00 Botrytis infection on blossom clustersPhoto by: R.S. Byther Biology Botrytis is a fungus that survives on dead twigs of bushes and prunings. It also overwinters on dead organic matter or on the soil surface. During wet periods of the spring, the organism […]

Blueberry: Mummyberry

Blueberry: Mummyberry categories: Blueberry Blueberry Diseases Small Fruits revision date: 2024-06-05 02:03 MummyberryPhoto by: R.S. Byther Biology Mummyberry is a fungal disease affecting blueberry flowers, leaves, twigs, and fruit. In the spring, flower and shoot buds are infected. The affected tissues turn brown and withered. A grayish to brown growth of fungal spores may appear […]

Blueberry: Viruses

Blueberry: Viruses categories: Blueberry Blueberry Diseases Small Fruits revision date: 2022-12-06 12:00 Blueberry mosaic virus symptomsPhoto by: R.S. Byther Biology Three major viruses continue to significantly impact blueberry plantings in the Pacific Northwest: Blueberry scorch virus, Blueberry shock virus, and Tomato ringspot virus. Blueberry scorch virus is spread by an aphid vector, and causes vegetative […]

Blueberry: Aphids

Blueberry: Aphids categories: Blueberry Blueberry Insects Small Fruits revision date: 2024-06-05 08:28 Aphid adultsPhoto by: E.P. Breakey Biology Aphids are small, soft-bodied, pear-shaped insects. They may vary in color from yellow to green to pinkish. Aphids typically feed in colonies on leaves and shoots, often preferring the newer growth. Severe infestations may cause leaves to […]

Blueberry: Brown marmorated stink bug

Blueberry: Brown marmorated stink bug categories: Blueberry Blueberry Insects Small Fruits revision date: 2023-02-08 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 […]

Blueberry: Leafrollers

Blueberry: Leafrollers categories: Blueberry Blueberry Insects Small Fruits revision date: 2023-04-12 12:00 Leafroller damage on blueberryPhoto by: R.S. Byther Biology Larvae of the orange tortrix and other leafrolling caterpillar species may be found on blueberries. The caterpillars are typically light to dark green with light or dark heads, and are about 3⁄4″ long at maturity. […]

Blueberry: Lecanium scale

Blueberry: Lecanium scale categories: Blueberry Blueberry Insects Small Fruits revision date: 2024-06-05 08:29 Lecanium scales on twigPhoto by: R.S. Byther Biology Lecanium scales are shiny brown insects found on twigs. Adults are 1⁄8″ to 1⁄4″ in diameter and roughly turtle-shaped. They may have light markings or appear somewhat waxy. Crawlers (immature scales) are flatter. Heavily […]

Blueberry: Spotted wing Drosophila (SWD)

Blueberry: Spotted wing Drosophila (SWD) categories: Blueberry Blueberry Insects Small 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 […]

Boysenberry: Fruit rot

Boysenberry: Fruit rot categories: Boysenberry Boysenberry Diseases Small Fruits revision date: 2022-12-06 12:00 Blackberry fruit rotPhoto by: R.S. Byther Biology Fruit rot is caused by a fungus. The disease is characterized by a watery, soft rot of infected fruit, either in the field or in storage. In moist conditions, the diseased fruit develops a characteristic […]

Boysenberry: Brown marmorated stink bug

Boysenberry: Brown marmorated stink bug categories: Boysenberry Boysenberry Insects Small Fruits revision date: 2023-02-08 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 […]

Boysenberry: Raspberry crown borer

Boysenberry: Raspberry crown borer categories: Boysenberry Boysenberry Insects Small Fruits revision date: 2022-12-06 12:00 Raspberry crown borer larvae and damagePhoto by: E.P. Breakey Biology The adult raspberry crown borer is a clearwing moth with a wingspan of 1″ to 1 1⁄2″. The moth closely resembles a yellowjacket. Females lay eggs on the canes or leaf margins. […]

Boysenberry: Spotted wing Drosophila (SWD)

Boysenberry: Spotted wing Drosophila (SWD) categories: Boysenberry Boysenberry Insects Small Fruits revision date: 2024-06-05 02:07 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 […]

Blackberry: Fruit rot

Blackberry: Fruit rot categories: Blackberry Blackberry Diseases Small Fruits revision date: 2022-12-07 12:00 Blackberry fruit rotPhoto by: R.S. Byther Biology Fruit rot is caused by a fungus. The disease is characterized by a watery, soft rot of infected fruit, either in the field or in storage. In moist conditions, the diseased fruit develops a characteristic […]

Blackberry: Leaf and cane spot

Blackberry: Leaf and cane spot categories: Blackberry Blackberry Diseases Small Fruits revision date: 2024-06-05 10:24 Blackberry leaf spotsPhoto by: OSU slide library Biology Leaf and cane spot is a fungal disease affecting blackberries (including ‘Marion’ and ‘Santiam’) and blackberry hybrids (including ‘Boysen’ and ‘Logan’ berries). Leaf symptoms include development of characteristic lesions which are initially […]