Subject
- Spraying and dusting in agriculture -- Oregon -- Willamette River Valley7
- Pesticides -- Application -- Oregon -- Willamette River Valley6
- 4-H clubs1
- Agricultural estimating and reporting -- Oregon1
- Agriculture -- Oregon -- Statistics1
- Apples -- Diseases and pests -- Control -- Oregon -- Willamette River Valley1
- Beans -- Organic farming -- Oregon, Western1
- Beans -- Weed control -- Oregon, Western1
- Blueberries -- Diseases and pests -- Control -- Oregon -- Willamette River Valley1
- Cherry -- Diseases and pests -- Control -- Oregon -- Willamette River Valley1
- Eastern filbert blight -- Control -- Oregon -- Willamette River Valley1
- Farm produce -- Oregon -- Statistics1
- Fungicides -- Oregon1
- Grapes -- Diseases and pests -- Control -- Oregon1
- Hazelnuts -- Diseases and pests -- Control -- Oregon -- Willamette River Valley1
- Peach -- Diseases and pests -- Control -- Oregon1
- Peach -- Diseases and pests -- Integrated control -- Oregon1
- Pear -- Diseases and pests -- Control -- Oregon -- Willamette River Valley1
- Pesticides -- Application -- Oregon1
- Plum -- Diseases and pests -- Control -- Oregon -- Willamette River Valley1