Subject
- Blister rust -- Idaho1
- Canker (Plant disease) -- Idaho1
- Cronartium ribicola -- Idaho1
- Forest ecology -- California, Northern1
- Forest management -- Environmental aspects -- California, Northern1
- Ips -- Blue Mountains (Or. and Wash.)1
- Ponderosa pine -- Disease and pest resistance -- Oregon -- Deschutes National Forest -- Genetic aspects1
- Ponderosa pine -- Diseases and pests1
- Ponderosa pine -- Diseases and pests -- Blue Mountains (Or. and Wash.)1
- Ponderosa pine -- Diseases and pests -- California, Northern1
- Ponderosa pine -- Diseases and pests -- Oregon -- Deschutes National Forest1
- Ponderosa pine -- Effect of fires on -- Blue Mountains (Or. and Wash.)1
- Prescribed burning -- Blue Mountains (Or. and Wash.)1
- Sitka spruce -- Diseases and pests -- Oregon1
- Western pine beetle -- Blue Mountains (Or. and Wash.)1
- Western pine shoot borer -- Oregon -- Deschutes National Forest1
- White pine -- Disease and pest resistance -- Idaho1
- White pine -- Diseases and pests -- Idaho1
- White-pine weevil -- Oregon1
- Wood borers -- Blue Mountains (Or. and Wash.)1