Subject
- Virus diseases of plants[remove]21
- Aphididae3
- Fruit -- Diseases and pests2
- Mosaic diseases2
- Apples -- Diseases and pests1
- Bean mosaic virus1
- Beans -- Disease and pest resistance1
- Cherry -- Diseases and pests1
- Dahlias -- Diseases and pests1
- Gladiolus1
- Heredity1
- Legumes -- Diseases and pests1
- Lilies -- Disease-free stock1
- Lilies -- Diseases and pests1
- Lilies -- Propagation -- In vitro1
- Peach -- Diseases and pests1
- Peas1
- Plant diseases -- Research1
- Plants -- Disease and pest resistance1
- Potatoes -- Diseases and pests1