Resource Number: 56346
Title: Forest Disease Management Notes - Gray Saprot
Publisher: USDA Forest Service
Resource Type: Fact sheet
Description:
Gray saprot is caused by the fungus Cryptoporm (Polyporus)
volvatus, often called the pouch fungus. Polyporus is very
common on recently killed conifers.
Last Updated: January 8, 2026
Contributors:
Domain(s)/Area(S):
- Forestry