Studies on the biological control of the spruce budworm, Cacoccia fumiferana Clemens, in southeastern Manitoba and northwestern Ontario
The spruce budworm, Cacoecia fumiferanca is a native insect which has exacted an enormous unestimated toll from the Jack pine forests of southeastern Manitoba and north- western Ontario during the past five years. The history of this present epidemic is somewhat obscure, but it is quite possible t...
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| Language: | en_US |
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2009
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| Online Access: | http://hdl.handle.net/1993/3405 |