Subject
- Fungicides -- Oregon8
- Grapes -- Diseases and pests -- Control -- Oregon8
- Pesticides -- Application -- Oregon8
- Spraying and dusting in agriculture -- Oregon8
- Viticulture -- Oregon8
- Pesticides -- Application -- Oregon -- Willamette River Valley7
- Spraying and dusting in agriculture -- Oregon -- Willamette River Valley7
- Agricultural pests -- Control -- Willamette River Valley (Or.)5
- Herbicides5
- Peach -- Diseases and pests -- Integrated control -- Oregon5
- Peach -- Diseases and pests -- Control -- Oregon4
- Apples -- Diseases and pests -- Control -- Oregon -- Willamette River Valley3
- Cover crops3
- Fungal diseases of grapes -- Control -- Oregon3
- Grapes -- Weed control -- Oregon3
- Pear -- Diseases and pests -- Control -- Oregon -- Willamette River Valley3
- Sweet corn -- Weed control3
- Agricultural pests -- Control -- Oregon -- Willamette River Valley2
- Apples -- Diseases and pests -- Control -- Columbia River Valley2
- Cherry -- Diseases and pests -- Control -- Columbia River Valley2