Cane Blight
Kalmusia coniothyrium
15 host plants
Last updated
Data Coverage 3 of 6 dimensions
Cane blight causes browning and death of raspberry and blackberry canes. You notice sudden wilting of affected canes, often with clear boundaries between healthy and dead wood. The fungal disease enters through wounds. Prune out infected canes, disinfect tools, and manage crown insects that create entry wounds.
Remove infected canes. Prune black raspberry in dry weather to force lateral growth so wounds will heal before getting wet again.
Quick Reference
Causal Agent
Kalmusia coniothyrium
Host Plants
15
Management
Cultural Controls
- Remove infected canes.
- Prune black raspberry in dry weather to force lateral growth so wounds will heal before getting wet again.
- Prune near the ground because the fungus overwinters on cane stubs.
- Minimize or adjust irrigation so plants are not wet for long periods.
- Switch to drip/trickle irrigation.
- Practice early-season primocane control.
Host Plants (15)
Rubus allegheniensis Allegheny Blackberry Rubus armeniacus Himalayan Blackberry Armenian Blackberry Rubus calycinoides Crinkle-leaf Creeper Creeping Raspberry Yü-shan raspberry Rubus dicolor Himalayan Blackberry Armenian Blackberry Rubus hayata Rubus hayata Rubus idaeus red raspberry Rubus laciniatus Evergreen Blackberry Cutleaf Blackberry Rubus leucodermis Blackcap, Western Raspberry Rubus lineatus Silky-leaved Berry Rubus odoratus Flowering Raspberry Purple-flowering Raspberry Rubus parviflorus Thimbleberry Western Thimbleberry Rubus rolfei Creeping Raspberry, Crinkle-leaf Creeper Rubus spectabilis Salmonberry Rubus tricolor Creeping Bramble Korean Raspberry Rubus ursinus Trailing Blackberry Western Blackberry California Blackberry Dewberry