1977. Borax treatment for Fomes annosus. (36069177685)
Summary
Borax treatment for Fomes annosus.
Photo by: Unknown
Date: 1977
Credit: USDA Forest Service, Region 6, State and Private Forestry, Forest Health Protection.
Collection: Region 6, Forest Health Protection slide collection; Regional Office, Portland, Oregon.
Image provided by USDA Forest Service, Region 6, State and Private Forestry, Forest Health Protection: <a href="https://www.fs.usda.gov/main/r6/forest-grasslandhealth" www.fs.usda.gov/main/r6/forest-grasslandhealth</a>
Date
1977
Source
U.S. Department of Agriculture
Copyright info
Public Domain