McDowall, L.L.
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Forest insect and diseases conditions in Ontario. 1980. Survey Bulletin Fall 1980. 13p.
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Winter drying damage advisory. 1980. Survey Bulletin March 1980. 1p.
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Forest insect and disease conditions in Ontario.1979. Survey Bulletin Fall 1979.8p.
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Forest insect and disease conditions in Ontario. 1979. Survey Bulletin Summer 1979.9p.
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Forest insect and disease conditions in Ontario. 1979. Survey Bulletin Spring 1979. 8p.
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Forest insect and disease conditions in Ontario. 1978. Survey Bulletin Fall 1978. 8p.
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Forest insect and disease conditions in Ontario. 1978. Survey Bulletin Summer 1978. 11p.
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Forest insect and disease conditions in Ontario.1978. Survey Bulletin Spring 1978. 10p.
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Forest insect and disease conditions in Ontario. 1977. Survey Bulletin Fall 1977.9p.
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Forest insect and disease conditions in Ontario. 1977. Survey Bulletin Summer 1977. 10p.
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Forest insect and disease conditions in Ontario, 1977.
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Forest insect and disease conditions in Ontario. Forestry Bulletin June-July 1976.
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Forest insect and disease conditions in Ontario. 1976. Forestry Bulletin August-October, 1976.8p.
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Forest insect and disease conditions in Ontario. 1976. Forestry Bulletin May 1976. 4p.
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Forest insect and disease conditions in Ontario. Forestry Bulletin June - July 1975.
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Forest insect and disease conditions in Ontario. 1975. Forestry Bulletin August - September 1975.
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Forest insect and disease conditions in Ontario. 1975. Forestry Bulletin May 1975. 6p.
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Forest insect and disease conditions in Ontario. 1974. Forestry Bulletin August-September 1974. 8p.
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Forest insect and disease conditions in Ontario. 1974. Forestry Bulletin June-July 1974. 11p.
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Forest insect and disease conditions in Ontario. 1974. Forestry Bulletin May 1974. 3p.
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Forest tent caterpillar advisory. 1974. Forestry Bulletin April 1974. 4p.
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Forest insect and disease conditions in Ontario. 1973. Forestry Bulletin August-September 1973. 6p.
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Forest insect and disease conditions in Ontario. 1973. Forestry Bulletin August 1973. 11p.
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Forest insect and disease conditions in Ontario.1973. Forestry Bulletin May 1973. 6p.
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Forest insect and disease conditions in Ontario. 1972. Forestry Bulletin August-September 1972. 8p.
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Forest insect and disease conditions in Ontario. 1972. Survey Bulletin June-July. 8p.
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Forest insect and disease conditions in Ontario. 1971. Survey Bulletin May-June 1971. 7p.
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Forest insect and disease conditions in Ontario. 1971. Survey Bulletin July Mid August 1971. 11p.
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Forest insect and disease conditions in Ontario.1971. Survey Bulletin September-October 1971. 15p.
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Noteworthy insects of jack pine in Manitoba and Saskatchewan
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Jack pine budworm in Manitoba and Saskatchewan, 1938-1967
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Annual Reports of the Forest Biology Rangers, Manitoba and Saskatchewan 1954
Hildahl, V.; McDowall, L.L.; Drouin, J.A.; Martin, J.B.; Lawrence, J.J.; Pratt, M.R.; Campbell, A.E.; McLeod, B.B.; Lalor, G.T.; Mortensen, K.L.; Patterson, V.B.
Year: 1955
Catalog ID: 30812
Issued by: Northern Forestry Centre
Availability: PDF (download)
