Resource Number: 56337
Title: Forest Disease Management Notes - Annosus Root and Butt Rot
Publisher: USDA Forest Service
Resource Type: Fact sheet
Description:
Annosus root and butt rot is caused by the fungus, Fomes
annosus. Estimates of loss are not available for the Pacific
Northwest. The disease causes growth loss, root and butt rot,
uprooting, and tree killing. Damage is increasing in pine and
true fir stands.
Last Updated: January 6, 2026
Contributors:
Domain(s)/Area(S):
- Forestry
Locations: