Twig Canker
Sporocadus lichenicola
12 host plants
Last updated
Data Coverage 3 of 6 dimensions
Blueberry twigs develop grey-white cankers with reddish margins and dark fruiting bodies, especially at nodes. Sporocadus lichenicola enters through winter-injured wood. Minimize winter injury through hardening-off practices and site selection. Prune out infected twigs and canes. The disease occurs sporadically in Oregon's Hood River and Willamette valleys.
Tactics that minimize winter or other injury to plants is encouraged. Prune affected branches well below visible symptoms and sterilize tools between cuts. Avoid pruning during wet weather, which spreads the pathogen through fresh wounds. Maintain plant vigor through proper watering and site management.
Quick Reference
Causal Agent
Sporocadus lichenicola
Host Plants
12
Management
Cultural Controls
- Tactics that minimize winter or other injury to plants is encouraged.
Host Plants (12)
Vaccinium angustifolium Lowbush Blueberry Vaccinium corymbosum Highbush Blueberry Vaccinium crassifolium Creeping Blueberry, Thick-leaved Whortlberry Vaccinium macrocarpon Cranberry American Cranberry Vaccinium membranaceum Big Huckleberry, Mountain Huckleberry Thinleaf Huckleberry Vaccinium moupinense Himalayan Blueberry Vaccinium ovalifolium Oval-leaf Blueberry Vaccinium ovatum Box Huckleberry, Evergreen Huckleberry Vaccinium parvifolium Red Huckleberry, Red Whortleberry Vaccinium sikkimense Sikkim Blueberry Vaccinium uliginosum Bog Blueberry, Bog Bilberry Vaccinium vitis Vaccinium vitis