Elm leaf rosette and woolly aphid of the apple
By: [Edith M. Patch]
Series: Bulletin / Maine Agricultural Experiment Station --       256
Publisher: Maine Agricultural Experiment Station
Published: 1916
Place of publication: Orono
Language: eng
Number of pages: 344
Subjects: Elm; Woolly apple aphid; Diseases and pests
Notes: Includes bibliographical references.