The birch leaf-mining sawfly, Fenusa pusilla (Lep.), has been a major pest of birch trees in Canada since its introduction into North America in 1923 (Britton, 1924a, 1924b). From that date onwards, serious infestations of leaves of most species of birch have been reported, particularly from the maritime provinces. The species was first noted in the province of Quebec in 1929 by Dr. Lionel Daviault of Quebec City (Daviault, 1937) who observed it developing on seven birch species at Berthier. [...]
| Identifer | oai:union.ndltd.org:LACETR/oai:collectionscanada.gc.ca:QMM.117564 |
| Date | January 1965 |
| Creators | Cheng, Hsien-Hua. |
| Contributors | Leroux, E. (Supervisor), Brittain, W. H., Jones, A. R. C. |
| Publisher | McGill University |
| Source Sets | Library and Archives Canada ETDs Repository / Centre d'archives des thèses électroniques de Bibliothèque et Archives Canada |
| Language | English |
| Detected Language | English |
| Type | Electronic Thesis or Dissertation |
| Format | application/pdf |
| Coverage | Master of Science. (Department of Entomology. ) |
| Rights | All items in eScholarship@McGill are protected by copyright with all rights reserved unless otherwise indicated. |
| Relation | alephsysno: NNNNNNNNN, Theses scanned by McGill Library. |
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