Simpson, L.J.
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Atlantic provinces
Davidson, A.G.; Newell, W.R.; Simpson, L.J.
Year: 1962
Catalog ID: 8279
Issued by: Atlantic Forestry Centre
Availability: Not available through the CFS (click for more information).
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Trap light operations in New Brunswick 1945-1954
Year: 1955
Catalog ID: 8210
Issued by: Atlantic Forestry Centre
Availability: Not available through the CFS (click for more information).
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Control of white pine weevil with DDT - Maritime Provinces
Year: 1952
Catalog ID: 8333
Issued by: Atlantic Forestry Centre
Availability: Not available through the CFS (click for more information).
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Control of white pine weevil with DDT - Maritime Provinces
Year: 1949
Catalog ID: 8332
Issued by: Atlantic Forestry Centre
Availability: Not available through the CFS (click for more information).
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Borer injury in burned timber - Maritime Provinces
Year: 1949
Catalog ID: 8331
Issued by: Atlantic Forestry Centre
Availability: Not available through the CFS (click for more information).
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Control of borers in logs with DDT - Maritime Provinces
Year: 1947
Catalog ID: 8330
Issued by: Atlantic Forestry Centre
Availability: Not available through the CFS (click for more information).
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Borers in burned logs - Maritimes Provinces
Year: 1947
Catalog ID: 8329
Issued by: Atlantic Forestry Centre
Availability: Not available through the CFS (click for more information).
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The European spruce sawfly outbreak in the Gaspe-Peninsula
Balch, R.E.; Simpson, L.J.; Prebble, M.L.
Year: 1934
Catalog ID: 6945
Issued by: Atlantic Forestry Centre
Availability: Not available through the CFS (click for more information).
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The effect of the birch leaf skeletonizer and the sawfly leaf-miner on the growth of birches in New Brunswick
Year: 1932
Catalog ID: 7451
Issued by: Atlantic Forestry Centre
Availability: Not available through the CFS (click for more information).
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Insects of the season 1931 in New Brunswick
Gorham, R.P.; Walker, G.P.; Simpson, L.J.
Year: 1932
Catalog ID: 7128
Issued by: Atlantic Forestry Centre
Availability: Not available through the CFS (click for more information).
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A European sawfly (Diprion polytomum (Hartig)) attacking spruce in the Gaspe-Peninsula, Quebec
Year: 1932
Catalog ID: 6944
Issued by: Atlantic Forestry Centre
Availability: Not available through the CFS (click for more information).
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Effect of defoliation on larch
Year: 1931
Catalog ID: 7450
Issued by: Atlantic Forestry Centre
Availability: Not available through the CFS (click for more information).
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The seasonal history of Polygraphus rufipennis Kirby
Year: 1929
Catalog ID: 7449
Issued by: Atlantic Forestry Centre
Availability: Not available through the CFS (click for more information).
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The seasonal history of Dendroctonus simplex Lec
Year: 1929
Catalog ID: 7448
Issued by: Atlantic Forestry Centre
Availability: Not available through the CFS (click for more information).
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Insects of the season 1929 in New Brunswick
Gorham, R.P.; Walker, G.P.; Simpson, L.J.
Year: 1929
Catalog ID: 7127
Issued by: Atlantic Forestry Centre
Availability: Not available through the CFS (click for more information).
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Insects of the season 1928 in New Brunswick
Gorham, R.P.; Walker, G.P.; Simpson, L.J.
Year: 1929
Catalog ID: 7126
Issued by: Atlantic Forestry Centre
Availability: Not available through the CFS (click for more information).