Whitebark pine. Photo by: Richard Sniezko Date: c.2010 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...
Topics: c2010, foresthealthprotection, usda, stateandprivateforestry, richardsniezko, Dorena Genetic...
Forest pathologist Jim Hadfield gathers information about a tree's soundness with a drill. Hazard tree evaluation. Photo by: Unknown Date: c.2010 Credit: USDA Forest Service, Region 6, State and Private Forestry, Forest Health Protection, Wenatchee Forest Insect and Disease Service Center. Source: Ten Lessons I Have Learned About Hazard Rating Trees by Jim Hadfield: www.fs.fed.us/foresthealth/technology/htwc/2010/Docs/06-H... Image provided by USDA Forest Service, Region 6, State and Private...
Topics: c2010, jimhadfield, foresthealthprotection, usda, stateandprivateforestry, tree, evaluation,...
Forest pathologist Jim Hadfield gathers information about a tree's soundness with an increment bore. Hazard tree evaluation. Photo by: Unknown Date: c.2010 Credit: USDA Forest Service, Region 6, State and Private Forestry, Forest Health Protection, Wenatchee Forest Insect and Disease Service Center. Source: Ten Lessons I Have Learned About Hazard Rating Trees by Jim Hadfield: www.fs.fed.us/foresthealth/technology/htwc/2010/Docs/06-H... Image provided by USDA Forest Service, Region 6, State and...
Topics: c2010, jimhadfield, foresthealthprotection, usda, stateandprivateforestry, incrementbore,...
Forest pathologist Jim Hadfield gathers information about a tree's soundness by sounding with a rubber mallet. Hazard tree evaluation. Photo by: Unknown Date: c.2010 Credit: USDA Forest Service, Region 6, State and Private Forestry, Forest Health Protection, Wenatchee Forest Insect and Disease Service Center. Source: Ten Lessons I Have Learned About Hazard Rating Trees by Jim Hadfield: www.fs.fed.us/foresthealth/technology/htwc/2010/Docs/06-H... Image provided by USDA Forest Service, Region 6,...
Topics: jimhadfield, r6, usda, stateandprivateforestry, tree, wenatcheeservicecenter, region6,...
Forest pathologist Jim Hadfield gathers information during a hazard tree evaluation by sounding the tree with a rubber mallet. Sounding can rapidly provide information about a tree's structural condition. Photo by: Unknown Date: c.2010 Credit: USDA Forest Service, Region 6, State and Private Forestry, Forest Health Protection, Wenatchee Forest Insect and Disease Service Center. Source: Ten Lessons I Have Learned About Hazard Rating Trees by Jim Hadfield:...
Topics: jimhadfield, r6, usda, stateandprivateforestry, tree, wenatcheeservicecenter, region6,...
Forest pathologist Jim Hadfield gathers information about a tree's soundness with a pulaski. Hazard tree evaluation. Photo by: Unknown Date: c.2010 Credit: USDA Forest Service, Region 6, State and Private Forestry, Forest Health Protection, Wenatchee Forest Insect and Disease Service Center. Source: Ten Lessons I Have Learned About Hazard Rating Trees by Jim Hadfield: www.fs.fed.us/foresthealth/technology/htwc/2010/Docs/06-H... Image provided by USDA Forest Service, Region 6, State and Private...
Topics: jimhadfield, r6, usda, stateandprivateforestry, tree, wenatcheeservicecenter, region6,...
Two-year old whitebark pine seedlings in blister rust inoculation chamber. Dorena Genetic Resource Center. Cottage Grove, Oregon. Photo by: Richard Sniezko Date: c.2010 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...
Topics: r6, usda, seedling, stateandprivateforestry, whitepineblisterrust, treepathogen,...
