c.2004. Forest pathologists Greg Filip coring a tree for decay to determine soundness.

Forest pathologists Greg Filip coring a tree for decay to determine soundness.

 

Photo by: Unknown

Date: c.2004

 

Photo credit: USDA Forest Service, Region 6, State and Private Forestry, Forest Health Protection, Westside Forest Insect and Disease Service Center.

Source: Kristen Chadwick collection; Sandy, Oregon.

 

Image provided by USDA Forest Service, Region 6, State and Private Forestry, Forest Health Protection: www.fs.usda.gov/main/r6/forest-grasslandhealth

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