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- Author:
- Roberts, John W. (John William) , 1882- , Pierce, Leslie.
- Subject:
- life cycle (organisms) , apples , orchards , fruit trees , plant diseases and disorders , fungal diseases of plants , leaf blotch , spraying , varietal resistance , sulfur , copper sulfate , Apple blotch , Apples Diseases and pests
- Physical description:
- 12 p. : ill. ; 23 cm.
- Additional Author(s):
- Roberts, John W. (John William) , 1882-Pierce, Leslie.
- Collection:
- Organic Roots Collection
- Series:
- Farmers' bulletin
- 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:
- Quaintance, A. L. (Altus Lacy) , 1870-1958 , Siegler, E. H. (Edouard Horace) , 1888-
- Subject:
- Apples Diseases and pests , apples , bark beetles , insect control , insect pests , pest control , control methods , plant pests , leafrollers , leaf skeletonizers , leafminers , grasshoppers , scale insects , boring insects , spraying , horticultural oils , sticky traps , spraying equipment , arsenicals
- Physical description:
- 95 p. : ill. ; 23 cm.
- Additional Author(s):
- Quaintance, A. L. (Altus Lacy) , 1870-1958Siegler, E. H. (Edouard Horace) , 1888-
- Collection:
- Organic Roots Collection
- Series:
- Farmers' bulletin
