LEXINGTON, Ky. — Blackberries are a favored fruit grown for both home and commercial production in Kentucky. A significant challenge, however, is the presence of several fungal diseases that require careful cultivar selection and management during the growing season. Blackberry rosette, also known as double blossom, is one of these diseases.

This newly revised and updated publication discusses symptoms, cause, disease development, and disease management of blackberry rosette.

Blackberry Rosette (Double Blossom) (PPFS-FR-S-03) is available online.

For additional publications on fruit diseases, visit the UK Plant Pathology Extension Publications webpage.

Click here to visit the University of Kentucky Pest News blog. 

— Nicole Gauthier, University of Kentucky Extension Plant Pathologist

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