PhD , 1991, Forest Protection and Silviculture, University of Washington
MS, 1982, Biology and Plant Ecology, Western Washington University
BS, 1977, Biology, Northern Arizona University
Areas of Interest
Forest Health. Forest Pathology, Forest Entomology, Forest Ecology, Mistletoes, Insects/Diseases interaction with Fire, Silviculture and Management.
Forestry and Natural Resources Extension:
I serve those interested in forest and tree health in Oregon with a focus on County Forestry Extension Agents and their clientele, forestry professionals, and small woodland owners and tree farmers.
Swiss Needle Cast Cooperative:
I am Director of the Swiss Needle Cast Cooperative (http://sncc.forestry.oregonstate.edu/). Swiss needle cast is foliage disease that is specific to Douglas-fir caused by the Ascomycete fungus Phaeocryptopus gaeumannii. The disease was first described in Europe, but the fungus is native to western North America. The cooperative is a collaboration of industry, agencies, extension and academia which is focused on research, monitoring and outreach concerning impacts, epidemiology, spread and intensification of this disease.