c.2007. Diseased whitebark pine (Pinus albicaulis) along the west rim of Crater Lake National Park, Oregon. Note the multiple cankers from Cronartium ribicola, the cause of white pine blister rust.
Diseased whitebark pine (Pinus albicaulis) along the west rim of Crater Lake National Park, Oregon. Note the multiple cankers from Cronartium ribicola, the cause of white pine blister rust.
Photo by: Richard Sniezko
Date: c.2007
Credit: USDA Forest Service, Region 6, Dorena Genetic Resource Center.
Source: DRGC online photo collection: www.fs.usda.gov/detail/r6/landmanagement/resourcemanageme...
Dorena Genetic Resource Center (DGRC) is the USDA Forest Service's regional service center for genetics in the Pacific Northwest Region. Dorena houses disease resistance breeding programs for five-needled pines and Port-Orford-cedar, a native plant development program, and the National Tree Climbing Program. For additional photos of the DGRC program, see: www.fs.usda.gov/detail/r6/landmanagement/resourcemanageme...
Image provided by USDA Forest Service, Region 6, State and Private Forestry, Forest Health Protection: www.fs.usda.gov/main/r6/forest-grasslandhealth
c.2007. Diseased whitebark pine (Pinus albicaulis) along the west rim of Crater Lake National Park, Oregon. Note the multiple cankers from Cronartium ribicola, the cause of white pine blister rust.
Diseased whitebark pine (Pinus albicaulis) along the west rim of Crater Lake National Park, Oregon. Note the multiple cankers from Cronartium ribicola, the cause of white pine blister rust.
Photo by: Richard Sniezko
Date: c.2007
Credit: USDA Forest Service, Region 6, Dorena Genetic Resource Center.
Source: DRGC online photo collection: www.fs.usda.gov/detail/r6/landmanagement/resourcemanageme...
Dorena Genetic Resource Center (DGRC) is the USDA Forest Service's regional service center for genetics in the Pacific Northwest Region. Dorena houses disease resistance breeding programs for five-needled pines and Port-Orford-cedar, a native plant development program, and the National Tree Climbing Program. For additional photos of the DGRC program, see: www.fs.usda.gov/detail/r6/landmanagement/resourcemanageme...
Image provided by USDA Forest Service, Region 6, State and Private Forestry, Forest Health Protection: www.fs.usda.gov/main/r6/forest-grasslandhealth