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- Author:
- Roberts, John W. (John William) , 1882-
- Subject:
- Apple scab , Apples Diseases and pests , apples , orchards , fruit trees , plant diseases and disorders , fungal diseases of plants , scab diseases , fungicides , spraying , dusting , spraying equipment , leaf spotting , frogeye leaf spot , leaf blotch , varietal resistance , cultural control , sulfur
- Physical description:
- 12 p. : ill. ; 23 cm.
- Additional Author(s):
- Roberts, John W. (John William) , 1882-
- Collection:
- Organic Roots Collection
- Series:
- Farmers' bulletin
- Author:
- Marlatt, C. L. (Charles Lester) , 1863- , Orton, W. A. (William Allen) , 1877-1930
- Subject:
- Apple scab , Codling moth , Apples Diseases and pests , plant pests , insect pests , cultural control , biological control , trapping , spraying , pesticides , fungicides , spraying equipment , scab diseases , plant diseases and disorders
- Physical description:
- 21 p. : ill. ; 23 cm.
- Additional Author(s):
- Marlatt, C. L. (Charles Lester) , 1863-Orton, W. A. (William Allen) , 1877-1930
- Collection:
- Organic Roots Collection
- Series:
- Farmers' bulletin
