Subject
- Vegetable gardening -- Oregon2
- Beans -- Effect of high temperatures on1
- Beans -- Varieties1
- Beans -- Yield1
- Cabbage -- Varieties1
- Fruit trees -- Diseases and pests -- Oregon -- Hood River Valley1
- Insects pests -- Biological control -- Oregon1
- Maggots -- Control1
- Nematodes -- Control1
- Onions -- Diseases and pests1
- Pesticides1
- Plant breeding1
- Pleocoma -- Oregon -- Hood River Valley1
- Weeds -- Biological control -- Oregon1