The infestation of Pinus species in Ontario by species of Conophthorus Hopkins has been recognized for some time. Damage to the cones and shoots of eastern white pine, Pinus strobus Lamb., by Conophthorus coniperda (Schwarz) was noticed about 1884 (Harrington 1902a). Similar damage to red pine, P. resinosa Ait., due to C. resinosae Hopkins was reported by Harrington (1902a) to have been discovered several years later in 1887. Thomas and Lindquist (1956) and Herdy and Thomas (1961) have reported that shoots of jack pine, P. banksiana Lamb., are infested by Conophthorus species. The mining of Scots pine shoots, P. sylvestris Lamb., has also been mentioned by Thomas and Lindquist (1956), although the presence of Conophthorus species on this tree species does not seem to be extensive.
| Identifer | oai:union.ndltd.org:LACETR/oai:collectionscanada.gc.ca:QMM.115532 |
| Date | January 1964 |
| Creators | Herdy, Harry. |
| Contributors | Leroux, E. (Supervisor) |
| 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 Biology.) |
| 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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