- Eastern filbert blight -- Control -- Oregon -- Willamette River Valley7
- Hazelnuts -- Diseases and pests -- Control -- Oregon -- Willamette River Valley7
- Spraying and dusting in agriculture -- Oregon -- Willamette River Valley6
- Eastern Oregon Agricultural Research Center -- Periodicals5
- Eastern filbert blight -- Control -- Oregon5
- Eastern filbert blight -- Integrated control -- Oregon -- Willamette River Valley5
- Hazelnuts -- Diseases and pests -- Integrated control -- Oregon -- Willamette River Valley5
- Pesticides -- Application -- Oregon -- Willamette River Valley5
- Agriculture -- Research -- Oregon, Eastern4
- Fertilizers -- Oregon4
- Fuel reduction (Wildfire prevention) -- Oregon, Eastern4
- Irrigation -- Oregon, Eastern -- Management4
- Property tax -- Oregon, Eastern4
- Sagebrush steppe ecology -- Oregon, Eastern4
- Shrubs -- Oregon, Eastern -- Identification4
- Soil moisture -- Oregon, Eastern -- Measurement4
- Winter wheat -- Varieties -- Oregon, Eastern4
- Anisogramma anomala -- Control -- Oregon3
- Beef cattle -- Oregon, Eastern3
- Forest landowners -- Taxation -- Oregon, Eastern3