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Publications by G.A. van Sickle

89 records.

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The forest insect and disease survey in the pacific region
van Sickle, G.A.; Fiddick, R.L.; Wood, C.S.
Year: 2001    Catalog ID: 19670
Available from: Pacific Forestry Centre
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Forest insect and disease conditions, British Columbia and Yukon – 1995
Forest insect and disease conditions, British Columbia and Yukon – 1995
Humphreys, N.; van Sickle, G.A.
Year: 1996    Catalog ID: 4254
Available from: Pacific Forestry Centre
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Forest insect and disease diagnosis and management using expert system-guided hypermedia
Thomson, A.J.; van Sickle, G.A.
Year: 1996    Catalog ID: 4589
Available from: Pacific Forestry Centre
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Five-year overview of forest health surveys in young managed stands in British Columbia, 1991-1995
Nevill, R.J.; Humphreys, N.; van Sickle, G.A.
Year: 1996    Catalog ID: 4668
Available from: Pacific Forestry Centre
CFS Availability: Not available through the CFS (click for more information).
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Computer-based training in tree damage assessment
Thomson, A.J.; van Sickle, G.A.
Year: 1995    Catalog ID: 4066
Available from: Pacific Forestry Centre
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Forest pest conditions in the Pacific and Yukon region: a mid-season summary
Humphreys, N.; van Sickle, G.A.
Year: 1995    Catalog ID: 4122
Available from: Pacific Forestry Centre
CFS Availability: PDF (download)
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Historical western hemlock looper outbreaks in British Columbia: input and analysis using a geographical information system
Parfett, N.; Otvos, I.S.; van Sickle, G.A.
Year: 1995    Catalog ID: 4169
Available from: Pacific Forestry Centre
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Three-year overview of forest health in young managed stands in British Columbia 1992-1994
Nevill, R.J.; Humphreys, N.; van Sickle, G.A.
Year: 1995    Catalog ID: 4178
Available from: Pacific Forestry Centre
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Development of a pheromone-based monitoring system for western hemlock looper (Lepidoptera: Geometridae): Effect of pheromone dose, lure age, and trap type
Evenden, M.L.; Borden, J.H.; van Sickle, G.A.; Gries, G.
Year: 1995    Catalog ID: 4628
Available from: Pacific Forestry Centre
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Predictive capabilities of a pheromone-based monitoring system for western hemlock looper (Lepidoptera: Geometridae)
Evenden, M.L.; Borden, J.H.; van Sickle, G.A.
Year: 1995    Catalog ID: 4630
Available from: Pacific Forestry Centre
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Distribution and hosts of the white pine weevil in Canada
Humble, L.M.; Humphreys, N.; van Sickle, G.A.
Year: 1994    Catalog ID: 21782
Available from: Pacific Forestry Centre
CFS Availability: Not available through the CFS (click for more information).
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Surveys of forest health in managed stands in British Columbia, 1992
Hodge, J.C.; Humphreys, N.; van Sickle, G.A.
Year: 1994    Catalog ID: 3416
Available from: Pacific Forestry Centre
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Mapping western budworm in BC: a historical perspective to improve tree health
Parfett, N.; Clarke, D.H.L.; van Sickle, G.A.
Year: 1994    Catalog ID: 3452
Available from: Pacific Forestry Centre
CFS Availability: PDF (download)
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Using a Geographical Information System for the input and analysis of historical western spruce budworm in British Columbia
Parfett, N.; Clarke, D.H.L.; van Sickle, G.A.
Year: 1994    Catalog ID: 3915
Available from: Pacific Forestry Centre
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Surveys of forest health in managed stands in British Columbia, 1993
Hodge, J.C.; Humphreys, N.; van Sickle, G.A.
Year: 1994    Catalog ID: 3919
Available from: Pacific Forestry Centre
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Forest insect and disease conditions British Columbia and Yukon, 1994
Forest insect and disease conditions British Columbia and Yukon, 1994
Wood, C.S.; van Sickle, G.A.
Year: 1994    Catalog ID: 4027
Available from: Pacific Forestry Centre
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Forest insect and disease conditions - British Columbia and Yukon, 1993
Forest insect and disease conditions - British Columbia and Yukon, 1993
Wood, C.S.; van Sickle, G.A.
Year: 1993    Catalog ID: 3331
Available from: Pacific Forestry Centre
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Forest insect and disease conditions, British Columbia and Yukon 1992
Forest insect and disease conditions, British Columbia and Yukon 1992
Wood, C.S.; van Sickle, G.A.
Year: 1993    Catalog ID: 3359
Available from: Pacific Forestry Centre
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Mineral contents of coniferous foliage from Forestry Canada's ARNEWS plots: Pacific and Yukon Region. June 1993
van Sickle, G.A.
Year: 1993    Catalog ID: 3461
Available from: Pacific Forestry Centre
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Pinewood nematode and its wood borer vector in western hemlock
van Sickle, G.A.; Seed, J.; Ring, F.M.
Year: 1993    Catalog ID: 3483
Available from: Pacific Forestry Centre
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Susceptibility of western hemlock to pinewood nematode and its wood borer vector
Ring, F.M.; White, K.; van Sickle, G.A.
Year: 1992    Catalog ID: 31649
Available from: Pacific Forestry Centre
CFS Availability: PDF (download)
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Pine needle scale in the Pacific and Yukon Region
Wood, C.S.; van Sickle, G.A.
Year: 1992    Catalog ID: 31590
Available from: Pacific Forestry Centre
CFS Availability: PDF (download)
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A review of innovations in disease and insect management and control
van Sickle, G.A.
Year: 1992    Catalog ID: 3186
Available from: Pacific Forestry Centre
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Forest insect and disease conditions, British Columbia and Yukon - 1991
Forest insect and disease conditions, British Columbia and Yukon - 1991
Wood, C.S.; van Sickle, G.A.
Year: 1992    Catalog ID: 3188
Available from: Pacific Forestry Centre
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Surveys of forest health in young stands in British Columbia
Humphreys, N.; van Sickle, G.A.
Year: 1992    Catalog ID: 3204
Available from: Pacific Forestry Centre
CFS Availability: Not available through the CFS (click for more information).
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Assessment of aerial photographs and multi-spectral scanner imagery for measuring mountain pine beetle damage
Assessment of aerial photographs and multi-spectral scanner imagery for measuring mountain pine beetle damage
Gimbarzevsky, P.; Dawson, A.F.; van Sickle, G.A.
Year: 1992    Catalog ID: 3265
Available from: Pacific Forestry Centre
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Pinewood nematode surveys Pacific & Yukon Region
van Sickle, G.A.
Year: 1991    Catalog ID: 31558
Available from: Pacific Forestry Centre
CFS Availability: PDF (download)
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Pest management tools for managing the boreal mixedwood forest
Volney, W.J.A.; van Sickle, G.A.
Year: 1991    Catalog ID: 19166
Available from: Northern Forestry Centre
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Forest insect and disease conditions British Columbia and Yukon 1990
Forest insect and disease conditions British Columbia and Yukon 1990
Wood, C.S.; van Sickle, G.A.
Year: 1991    Catalog ID: 3096
Available from: Pacific Forestry Centre
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Pinewood nematode host exemption surveys
van Sickle, G.A.
Year: 1990    Catalog ID: 34139
Available from: Pacific Forestry Centre
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Spatial relationships of Douglas-fir tussock moth defoliation within habitat and climatic zones
Shepherd, R.F.; van Sickle, G.A.; Clarke, D.H.L.
Year: 1989    Catalog ID: 2879
Available from: Pacific Forestry Centre
CFS Availability: Not available through the CFS (click for more information).
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GIS - A tool in forest pest management
van Sickle, G.A.
Year: 1989    Catalog ID: 2896
Available from: Pacific Forestry Centre
CFS Availability: Print (free)
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Forest insect and disease conditions British Columbia and Yukon, 1988
Forest insect and disease conditions British Columbia and Yukon, 1988
Wood, C.S.; van Sickle, G.A.
Year: 1989    Catalog ID: 2897
Available from: Pacific Forestry Centre
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Forest insect and disease conditions in the Pacific Region: a mid-season summary
Wood, C.S.; van Sickle, G.A.
Year: 1989    Catalog ID: 2898
Available from: Pacific Forestry Centre
CFS Availability: PDF (download)
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Forest insect and disease conditions, British Columbia and Yukon 1989
Forest insect and disease conditions, British Columbia and Yukon 1989
Wood, C.S.; van Sickle, G.A.
Year: 1989    Catalog ID: 2899
Available from: Pacific Forestry Centre
CFS Availability: Print (free), PDF (download)
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Western spruce budworm in British Columbia in 1988
Wood, C.S.; van Sickle, G.A.
Year: 1988    Catalog ID: 30925
Available from: Pacific Forestry Centre
CFS Availability: PDF (download)
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Status of important forest pests, experimental control projects and vegetation management research - Pacific Region
van Sickle, G.A.
Year: 1988    Catalog ID: 2774
Available from: Pacific Forestry Centre
CFS Availability: Print (free)
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FIDS Infobase/Overlay - A pest data base and geographic information system
van Sickle, G.A.; Humble, L.M.
Year: 1988    Catalog ID: 2775
Available from: Pacific Forestry Centre
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Pests - What they look like, what they do
van Sickle, G.A.; Miller, G.E.
Year: 1988    Catalog ID: 2776
Available from: Pacific Forestry Centre
CFS Availability: Print (free)
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Forest pest conditions in the Pacific Region: a midseason summary
Wood, C.S.; van Sickle, G.A.
Year: 1988    Catalog ID: 2777
Available from: Pacific Forestry Centre
CFS Availability: Print (free), PDF (download)
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Impact of pine stem rusts of hard pines in Alberta and the Northwest Territories
Impact of pine stem rusts of hard pines in Alberta and the Northwest Territories
Hiratsuka, Y.; Powell, J.M.; van Sickle, G.A.
Year: 1988    Catalog ID: 11781
Available from: Northern Forestry Centre
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Host responses
van Sickle, G.A.
Year: 1987    Catalog ID: 2674
Available from: Pacific Forestry Centre
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Pacific Region--1987 Status of important forest pests and experimental control projects
van Sickle, G.A.
Year: 1987    Catalog ID: 2675
Available from: Pacific Forestry Centre
CFS Availability: Not available through the CFS (click for more information).
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Forest insect and disease conditions – British Columbia and Yukon, 1986
Forest insect and disease conditions – British Columbia and Yukon, 1986
Wood, C.S.; van Sickle, G.A.
Year: 1987    Catalog ID: 2689
Available from: Pacific Forestry Centre
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Forest insect and disease conditions – British Columbia and Yukon, 1987
Forest insect and disease conditions – British Columbia and Yukon, 1987
Wood, C.S.; van Sickle, G.A.; Humble, L.M.
Year: 1987    Catalog ID: 2690
Available from: Pacific Forestry Centre
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Forest insect and disease conditions British Columbia & Yukon 1985
Forest insect and disease conditions British Columbia & Yukon 1985
Wood, C.S.; van Sickle, G.A.
Year: 1986    Catalog ID: 2589
Available from: Pacific Forestry Centre
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Forest pest conditions in the Pacific Region--A mid-season summary
Wood, C.S.; van Sickle, G.A.
Year: 1986    Catalog ID: 2590
Available from: Pacific Forestry Centre
CFS Availability: Not available through the CFS (click for more information).
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Forest insect and disease conditions in British Columbia & Yukon, 1984
Forest insect and disease conditions in British Columbia & Yukon, 1984
Wood, C.S.; van Sickle, G.A.; Shore, T.L.
Year: 1985    Catalog ID: 2488
Available from: Pacific Forestry Centre
CFS Availability: PDF (download)
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Mid-season summary of forest pest conditions in British Columbia & Yukon
Wood, C.S.; van Sickle, G.A.
Year: 1985    Catalog ID: 2490
Available from: Pacific Forestry Centre
CFS Availability: Not available through the CFS (click for more information).
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Aerial surveys for pest damage assessment
van Sickle, G.A.
Year: 1985    Catalog ID: 2569
Available from: Pacific Forestry Centre
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Effects of infestations on trees and stands
van Sickle, G.A.
Year: 1985    Catalog ID: 2570
Available from: Pacific Forestry Centre
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The mountain pine beetle situation in British Columbia 1984
van Sickle, G.A.
Year: 1985    Catalog ID: 2571
Available from: Pacific Forestry Centre
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Forest insect and disease conditions - British Columbia and Yukon 1983
Wood, C.S.; van Sickle, G.A.; Shore, T.L.
Year: 1984    Catalog ID: 2308
Available from: Pacific Forestry Centre
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Variation in susceptibility to sweet fern rust among Pinus contorta and P. banksiana
Hunt, R.S.; van Sickle, G.A.
Year: 1984    Catalog ID: 2409
Available from: Pacific Forestry Centre
CFS Availability: Print (free)

Available from the Journal's Web site.
DOI: 10.1139/x84-121
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Quantification of Douglas-fir growth losses caused by western spruce budworm defoliation using stem analysis
Alfaro, R.I.; Thomson, A.J.; van Sickle, G.A.
Year: 1984    Catalog ID: 2450
Available from: Pacific Forestry Centre
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Appraising damage by forest pests
van Sickle, G.A.
Year: 1983    Catalog ID: 2306
Available from: Pacific Forestry Centre
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Forest insect and disease conditions: British Columbia and Yukon, 1982
Wood, C.S.; van Sickle, G.A.
Year: 1983    Catalog ID: 2307
Available from: Pacific Forestry Centre
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Douglas-fir height growth affected by western spruce budworm
van Sickle, G.A.; Alfaro, R.I.; Thomson, A.J.
Year: 1983    Catalog ID: 2337
Available from: Pacific Forestry Centre
CFS Availability: Print (free)

Available from the Journal's Web site.
DOI: 10.1139/x83-067
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Tree-crown defoliation measurement from digitized photographs
Lee, Y.J.; Alfaro, R.I.; van Sickle, G.A.
Year: 1983    Catalog ID: 2427
Available from: Pacific Forestry Centre
CFS Availability: Print (free)

Available from the Journal's Web site.
DOI: 10.1139/x83-127
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Survey for dwarf mistletoe infection in lodgepole pine regeneration under mountain pine beetle-attacked stands in the Chilcotin. Special Report
Shore, T.L.; Andrews, R.J.; van Sickle, G.A.
Year: 1982    Catalog ID: 30827
Available from: Pacific Forestry Centre
CFS Availability: PDF (download)
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Tree mortality and radial growth losses caused by the western spruce budworm in a Douglas-fir stand in British Columbia
Alfaro, R.I.; van Sickle, G.A.; Thomson, A.J.; Wegwitz, E.
Year: 1982    Catalog ID: 2168
Available from: Pacific Forestry Centre
CFS Availability: Print (free)
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Evaluating effects of western spruce budworm on Douglas-fir volume growth
Thomson, A.J.; Alfaro, R.I.; van Sickle, G.A.
Year: 1982    Catalog ID: 2193
Available from: Pacific Forestry Centre
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Forest insect and disease conditions, British Columbia and Yukon, 1981
Fiddick, R.L.; van Sickle, G.A.
Year: 1982    Catalog ID: 2204
Available from: Pacific Forestry Centre
CFS Availability: PDF (download)
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Position paper on mountain pine beetle problems with special reference to the Rocky Mountain parks region
Safranyik, L.; van Sickle, G.A.; Manning, G.H.
Year: 1981    Catalog ID: 2043
Available from: Pacific Forestry Centre
CFS Availability: PDF (download)
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Estimation of tree growth losses caused by pest activity
Thomson, A.J.; van Sickle, G.A.
Year: 1980    Catalog ID: 2049
Available from: Pacific Forestry Centre
CFS Availability: Print (free)
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Forest insect and disease conditions: British Columbia and Yukon 1980
Fiddick, R.L.; van Sickle, G.A.
Year: 1980    Catalog ID: 2055
Available from: Pacific Forestry Centre
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Sawfly infestation near Kelsey Bay, Vancouver Island
van Sickle, G.A.; Fiddick, R.L.
Year: 1979    Catalog ID: 30777
Available from: Pacific Forestry Centre
CFS Availability: PDF (download)
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Forest insect and disease conditions, British Columbia and Yukon, 1979
Fiddick, R.L.; van Sickle, G.A.
Year: 1979    Catalog ID: 1880
Available from: Pacific Forestry Centre
CFS Availability: PDF (download)
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Damage appraisal cruises in spruce budworm defoliated stands of Douglas-fir in 1977
Collis, D.G.; van Sickle, G.A.
Year: 1978    Catalog ID: 1853
Available from: Pacific Forestry Centre
CFS Availability: PDF (download)
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Dwarf mistletoe controls in British Columbia
van Sickle, G.A.; Smith, R.B.
Year: 1978    Catalog ID: 1915
Available from: Pacific Forestry Centre
CFS Availability: PDF (request by e-mail)
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Silvicultural control of dwarf mistletoe in young lodgepole pine stands in Alberta and British Columbia
Silvicultural control of dwarf mistletoe in young lodgepole pine stands in Alberta and British Columbia
van Sickle, G.A.; Wegwitz, E.
Year: 1978    Catalog ID: 3990
Available from: Pacific Forestry Centre
CFS Availability: PDF (download)
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Status of western spruce budworm on Douglas-fir in British Columbia
Shepherd, R.F.; Harris, J.W.E.; van Sickle, G.A.; Fiddick, R.L.; McMullen, L.H.
Year: 1977    Catalog ID: 30738
Available from: Pacific Forestry Centre
CFS Availability: PDF (download)
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Seasonal periodicity in the discharge of Pucciniastrum goepertianum basidiospores
van Sickle, G.A.
Year: 1977    Catalog ID: 1699
Available from: Pacific Forestry Centre
CFS Availability: PDF (request by e-mail)

Available from the Journal's Web site.
DOI: 10.1139/b77-089
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Sanitation: a practical protection against Dutch elm disease in Fredericton, New Brunswick
van Sickle, G.A.; Sterner, T.E.
Year: 1976    Catalog ID: 7584
Available from: Atlantic Forestry Centre
CFS Availability: Print (free)
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Basidiospore production and infection of balsam fir by a needle rust, Pucciniastrum goeppertianum
van Sickle, G.A.
Year: 1975    Catalog ID: 7582
Available from: Atlantic Forestry Centre
CFS Availability: Print (free)
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Forest pest conditions in the Maritime Provinces in 1974 with an outlook for 1975
Forbes, R.S.; Underwood, G.R.; van Sickle, G.A.
Year: 1975    Catalog ID: 7676
Available from: Atlantic Forestry Centre
CFS Availability: Print (free)
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Growth loss caused by needle rust (Pucciniastrum goeppertianum) of balsam fir
van Sickle, G.A.
Year: 1974    Catalog ID: 7580
Available from: Atlantic Forestry Centre
CFS Availability: Print (free)
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Nectria canker: a problem on black locust in New Brunswick
van Sickle, G.A.
Year: 1974    Catalog ID: 7581
Available from: Atlantic Forestry Centre
CFS Availability: Print (free)
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Forest pest conditions in the Maritimes in 1973 with an outlook for 1974
Forbes, R.S.; Underwood, G.R.; van Sickle, G.A.
Year: 1974    Catalog ID: 7666
Available from: Atlantic Forestry Centre
CFS Availability: Print (free)
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A guide to elm tree removal costs
van Sickle, G.A.; Urquhart, D.A.
Year: 1974    Catalog ID: 7667
Available from: Atlantic Forestry Centre
CFS Availability: Print (free)
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A quantitative survey for needle rust of balsam fir
van Sickle, G.A.
Year: 1973    Catalog ID: 7578
Available from: Atlantic Forestry Centre
CFS Availability: Print (free)
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A survey of production losses due to witches' broom of blueberry in the Maritime provinces
van Sickle, G.A.
Year: 1973    Catalog ID: 7579
Available from: Atlantic Forestry Centre
CFS Availability: Print (free)
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Epidemiology and impact of a needle rust (Pucciniastrum goeppertianium) on Abies balsamea
van Sickle, G.A.
Year: 1973    Catalog ID: 8707
Available from: Atlantic Forestry Centre
CFS Availability: Print (free)
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Epidemiology and impact of a needle rust (Pucciniastrum goeppertianum) on Abies balsamea
van Sickle, G.A.
Year: 1972    Catalog ID: 7577
Available from: Atlantic Forestry Centre
CFS Availability: Print (free)
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Occurrence of Cronartium comptoniae in the Maritime provinces
van Sickle, G.A.
Year: 1969    Catalog ID: 7576
Available from: Atlantic Forestry Centre
CFS Availability: Print (free)
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Fomes annosus in eastern Canada
Redfern, D.B.; van Sickle, G.A.
Year: 1968    Catalog ID: 7385
Available from: Atlantic Forestry Centre
CFS Availability: Print (free)
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Occurrence of Peridium harknessii of the Cronartium coleosporioides complex confirmed in the Maritime provinces
van Sickle, G.A.; Newell, W.R.
Year: 1968    Catalog ID: 7583
Available from: Atlantic Forestry Centre
CFS Availability: Print (free)
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A field manual of tree diseases in the Maritimes Region
van Sickle, G.A.
Year: 1966    Catalog ID: 7624
Available from: Atlantic Forestry Centre
CFS Availability: Not available through the CFS (click for more information).
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Assessment of decay in pruned coniferous stands in Nova Scotia
van Sickle, G.A.
Year: 1966    Catalog ID: 7627
Available from: Atlantic Forestry Centre
CFS Availability: Not available through the CFS (click for more information).
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This may not be a complete list of the author's publications. This list provides the author's publications since he or she joined, or worked in cooperation with, the CFS. When available, another link is provided for periods of work elsewhere.