Subject
- Ponderosa pine -- Diseases and pests -- Control -- Idaho2
- Ponderosa pine -- Diseases and pests -- Control -- Montana2
- Tortricidae -- Control -- Idaho2
- Tortricidae -- Control -- Montana2
- Ponderosa pine -- Diseases and pests -- Idaho1
- Ponderosa pine -- Diseases and pests -- Montana1
- Report (United States. Forest Service. Northern Region. Forest Pest Management)1
- Tortricidae -- Idaho1
- Tortricidae -- Montana1