Contributions to the bionomics of the spruce budworm, Cacoecia fumiferana Clem., in southeastern Manitoba and northwestern Ontario

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dc.contributor.authorSmith, Donald Newellen_US
dc.date.accessioned2011-06-06T18:15:18Z
dc.date.available2011-06-06T18:15:18Z
dc.date.issued1939en_US
dc.degree.disciplineEntomologyen_US
dc.degree.levelMaster of Science (M.Sc.)en_US
dc.description.abstractThe Spruce Budworm, Cacoecia fumiferana Clem., is a member of the microlepiodopterous family Tortricidae and appears to be indigenous to North America. Generically, it possesses considerable synonyny, being described in the literature variously as Tortrix, Archips and Harmologa fumiferana. The original description by CLEMENS (65') designated the species as Tortrix fumiferana. The moth occurs in two chief colour phases, one of which appears to occur most often in the Eastern section, feeding chiefly on Balsam fir and White spruce and predominantly grey in colour (GIBSON '25, CHAMBERS and THOMPSON '33); the other occurs most often on pines and in colour tends towards the copper shades (CHAMBERS and THOMPSON '33). GRAHAM ('35) has proposed that there is a biological race common to the central forested areas of North America and specifically adapted to feeding upon Jack Pine. This section aims merely to present a graphic picture of the widespread distribution of the pest, in a general way. No attempt is made to treat of the outbreaks from an historical or economic point of view....en_US
dc.format.extent17092561 bytes
dc.format.mimetypeapplication/pdf
dc.identifierocm72805349en_US
dc.identifier.urihttp://hdl.handle.net/1993/4723
dc.language.isoengen_US
dc.rightsopen accessen_US
dc.rightsThe reproduction of this thesis has been made available by authority of the copyright owner solely for the purpose of private study and research, and may only be reproduced and copied as permitted by copyright laws or with express written authorization from the copyright owner.en_US
dc.titleContributions to the bionomics of the spruce budworm, Cacoecia fumiferana Clem., in southeastern Manitoba and northwestern Ontarioen_US
dc.typemaster thesisen_US
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