Subject
- Herbicides -- Oregon14
- Noxious weeds -- Control -- Oregon14
- Weeds -- Control9
- Weeds -- Control -- Oregon7
- Grapes -- Weed control -- Oregon6
- Vegetable gardening -- Oregon6
- Grasses -- Weed control -- Oregon5
- Lawns -- Weed control -- Oregon5
- Weed control -- Oregon5
- Vegetables -- Weed control -- Oregon4
- Wheat -- Weed control -- Oregon4
- Berries -- Weed control -- Oregon3
- Fungal diseases of grapes -- Control -- Oregon3
- Fungicides -- Oregon3
- Grapes -- Diseases and pests -- Control -- Oregon3
- Mosses -- Control -- Oregon3
- Orchards -- Weed control -- Oregon3
- Pesticides -- Application -- Oregon3
- Spraying and dusting in agriculture -- Oregon3
- Viticulture -- Oregon3