Untreated Sudden Oak Death (SOD) plot showing tanoak mortality from NA1 strain of Phytophthora ramorum. North of Brookings, Oregon.
Photo by: Blakey Lockman
Date: March 19, 2018
Credit: USDA Forest Service, Region 6, State and Private Forestry, Forest Health Protection.
Source: Blakey Lockman collection.
Image provided by USDA Forest Service, Region 6, State and Private Forestry, Forest Health Protection:
www.fs.usda.gov/main/r6/forest-grasslandhealth