Subject
- Adelgidae -- Oregon1
- Ambrosia beetles1
- Aphids -- Oregon1
- Applegate River Watershed (Or.)1
- Armillaria root rot -- Idaho1
- Armillaria root rot -- Montana1
- Armillaria root rot -- Montana -- Flathead Indian Reservation1
- Armillaria root rot -- Oregon -- Deschutes National Forest1
- Brown rot -- Oregon1
- Canker (Plant disease) -- Oregon1
- Cellulose -- Biodegradation -- Oregon1
- Cereal grasses -- Diseases and pests -- Oregon1
- Common bean -- Disease and pest resistance -- Oregon -- Genetic aspects1
- Conifers -- California, Northern -- Growth -- Mathematical models1
- Conifers -- Cascade Range -- Growth1
- Conifers -- Coast Ranges -- Growth1
- Conifers -- Coast Ranges -- Seedlings1
- Conifers -- Colonization -- Oregon -- H.J. Andrews Experimental Forest1
- Conifers -- Diseases and pests2
- Conifers -- Diseases and pests -- Cascade Range1