Subject
- Agricultural pests -- Control -- Congresses53
- Agriculture -- Oregon20
- Catalogs, Publishers' -- Oregon14
- College publications -- Oregon14
- Grapes -- Diseases and pests -- Control -- Oregon14
- Viticulture -- Oregon12
- Spraying and dusting in agriculture -- Oregon11
- Fungicides -- Oregon10
- Pesticides -- Application -- Oregon10
- Strawberries -- Diseases and pests10
- Agriculture8
- Herbicides7
- Oregon Agricultural Experiment Station7
- Weeds -- Control7
- Agricultural experiment stations -- Oregon6
- American wood6
- Strawberries -- Diseases and pests -- Oregon6
- Agriculture -- Oregon -- Experimentation5
- Agrobacterium tumefaciens5
- Dissertations, Academic -- United States -- Bibliography -- Catalogs5