Blueberry: Botrytis blight categories: Blueberry Blueberry Diseases Small Fruits last review date: 2026-03-10 12:09 Botrytis infection on blossom clusters Photo 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, […]
Blueberry: Mummyberry categories: Blueberry Blueberry Diseases Small Fruits last review date: 2026-03-12 12:57 Mummyberry Photo 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 […]
Blueberry: Viruses categories: Blueberry Blueberry Diseases Small Fruits last review date: 2026-03-12 01:50 Blueberry mosaic virus symptoms Photo 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 […]
Blueberry: Aphids categories: Blueberry Blueberry Insects Small Fruits last review date: 2026-03-10 11:43 Aphid adults Photo 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 […]
Blueberry: Brown marmorated stink bug categories: Blueberry Blueberry Insects Small Fruits last review date: 2026-04-09 02:17 Brown marmorated stink bug adult Photo 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 […]
Blueberry: Leafrollers categories: Blueberry Blueberry Insects Small Fruits last review date: 2026-04-09 02:20 Leafroller damage on blueberry Photo 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 […]
Blueberry: Lecanium scale categories: Blueberry Blueberry Insects Small Fruits last review date: 2026-03-10 01:16 Lecanium scales on twig Photo 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 […]
Blueberry: Spotted wing Drosophila (SWD) categories: Blueberry Blueberry Insects Small Fruits last review date: 2026-03-12 02:13 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 […]