Fact Sheets

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 […]