The biology, morphology and control of Psyllia mali Schmidberger
By: By William Harold Brittain.
Published: 1923
Place of publication: [Truro?
Language: eng
Number of pages: 69
Subjects: Apple sucker.; Rosaceae.
Notes: Includes bibliographies.
Thesis (Ph. D)--Cornell University, 1922.
Cover title.
Table of contents: title: I. Biology and control. Reprinted from Bulletin no. 10. Nova Scotia Department of agriculture, March, 1923; title: II. Morphology & synonymy. Reprinted from Proceedings of the Acadian entomological society, no. 8: 23-51, April, 1923.