Gross, H.L.
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Impact of the jack pine budworm in Ontario. Frontline Technical Note 87.
Gross, H.L.; Hopkin, A.A.; Howse, G.M.
Year: 1996
Catalog ID: 9200
Issued by: Great Lakes Forestry Centre
Availability: PDF (download)
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Impact of the 1982-1986 jack pine budworm infestation on jack pine in northeastern Ontario. O-X-431.
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Pest-caused depletions to the forest resource of Ontario, 1982-1987.
Gross, H.L.; Roden, D.B.; Churcher, J.J.; Howse, G.M.; Gertridge, D.
Year: 1992
Catalog ID: 22233
Issued by: Great Lakes Forestry Centre
Availability: PDF (download)
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Dieback and growth loss of sugar maple associated with defoliation by the forest tent caterpillar
Year: 1991
Catalog ID: 21802
Issued by: Great Lakes Forestry Centre
Availability: PDF (request by e-mail)
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Forest Pathology Research programs at Forestry Canada, Ontario Region.
Gross, H.L.; Irwin, R.N.; Myren, D.T.; Davis, C.N.; Hopkin, A.A.; Dumas, M.T.; Boyonoski, N.W.; Richards, W.C.; Wiensczyk, A.M.
Year: 1988
Catalog ID: 37302
Issued by: Great Lakes Forestry Centre
Availability: PDF (download)
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White pine blister rust: A discussion of the disease and hazard zones for Ontario.
Year: 1985
Catalog ID: 21801
Issued by: Great Lakes Forestry Centre
Availability: PDF (request by e-mail)
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Impact of pests on the white pine resource of Ontario.
Year: 1985
Catalog ID: 21800
Issued by: Great Lakes Forestry Centre
Availability: PDF (request by e-mail)
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The impact of insects and diseases on the forests of Ontario. O-X-366.
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Multiple-leadered trees compare favorably with single-leadered trees in field performance tests of nursery stock. O-X-363.
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Other important diseases associated with the boreal mixedwood forest.
Year: 1984
Catalog ID: 37029
Issued by: Great Lakes Forestry Centre
Availability: PDF (request by e-mail)
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Jack pine diseases in Ontario. 1984. McGauley, B.H.; Gross, H.L. COJFRC Symposium Proceedings O-P-12. p139-144.
Year: 1984
Catalog ID: 33637
Issued by: Great Lakes Forestry Centre
Availability: PDF (request by e-mail)
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Defect associated with Eutypella canker of maple.
Year: 1984
Catalog ID: 21799
Issued by: Great Lakes Forestry Centre
Availability: PDF (request by e-mail)
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Impact of Eutypella Canker on the maple resource of the Owen Sound and Wingham forest districts.
Year: 1984
Catalog ID: 21798
Issued by: Great Lakes Forestry Centre
Availability: PDF (request by e-mail)
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Site character and infection hazard for the sweetfern rust disease in northern Ontario.
Gross, H.L.; Ek, A.R.; Patton, R.F.
Year: 1983
Catalog ID: 21804
Issued by: Great Lakes Forestry Centre
Availability: PDF (request by e-mail)
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Negligible cull and growth loss of jack pine associated with globose gall rust.
Year: 1983
Catalog ID: 21797
Issued by: Great Lakes Forestry Centre
Availability: PDF (request by e-mail)
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Gremmeniella (Scleroderris) Disease of Conifers(Pamphlet).
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Forest insect and disease conditions in Ontario, 1982. O-X-350.
Howse, G.M.; Syme, P.D.; Gross, H.L.; Myren, D.T.; Meating, J.H.; Applejohn, M.J.; Smith, K.L.
Year: 1983
Catalog ID: 9025
Issued by: Great Lakes Forestry Centre
Availability: PDF (download)
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Injuries to terminal shoots cause multiple-leadered nursery seedlings. O-X-347.
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Annual reports of the forest insect and disease survey 1978 and 1979.
Howse, G.M.; Syme, P.D.; Gross, H.L.
Year: 1982
Catalog ID: 37058
Issued by: Great Lakes Forestry Centre
Availability: PDF (request by e-mail)
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Dommages causés par lépiale Stenopis quadriguttatus Grote aux jeunes pousses du peuplier faux-tremble dans le nord de l'Ontario.
Year: 1982
Catalog ID: 37047
Issued by: Great Lakes Forestry Centre
Availability: PDF (request by e-mail)
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Conversion efficiency: Roundwood to sawn lumber.
Year: 1982
Catalog ID: 21796
Issued by: Great Lakes Forestry Centre
Availability: PDF (request by e-mail)
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Forest insect and disease conditions in Ontario, 1981. O-X-339.
Howse, G.M.; Gross, H.L.; Syme, P.D.; Myren, D.T.; Meating, J.H.; Applejohn, M.J.
Year: 1982
Catalog ID: 9014
Issued by: Great Lakes Forestry Centre
Availability: PDF (download)
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Annual report of the forest insect and disease survey, 1977: Ontario Region.
Howse, G.M.; Gross, H.L.; Rose, A.H.
Year: 1981
Catalog ID: 37054
Issued by: Great Lakes Forestry Centre
Availability: PDF (request by e-mail)
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Damage to aspen regeneration in northern Ontario by the ghost moth, Sthenopis quadriguttatus Grote.
Year: 1981
Catalog ID: 37051
Issued by: Great Lakes Forestry Centre
Availability: PDF (request by e-mail)
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Maple decline.
Year: 1981
Catalog ID: 37049
Issued by: Great Lakes Forestry Centre
Availability: PDF (request by e-mail)
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Diseases of aspen suckers in northern Ontario. O-X-329.
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Forest insect and disease conditions in Ontario, 1980. O-X-327.
Howse, G.M.; Syme, P.D.; Gross, H.L.; Myren, D.T.; Applejohn, M.J.
Year: 1981
Catalog ID: 9002
Issued by: Great Lakes Forestry Centre
Availability: PDF (download)
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Une enquête dans les pépinières forestières de l'Ontario sur la présence de Cylindrocladium floridanum.
Myren, D.T.; Gross, H.L.; Dorworth, E.B.
Year: 1980
Catalog ID: 37048
Issued by: Great Lakes Forestry Centre
Availability: PDF (request by e-mail)
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Spatial aspects of sweetfern rust disease in northern Ontario jack pine-sweet fern stands.
Gross, H.L.; Patton, R.F.; Ek, A.R.
Year: 1980
Catalog ID: 21805
Issued by: Great Lakes Forestry Centre
Availability: PDF (request by e-mail)
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Comparison of sample rules for estimating jack pine density, basal area, and percentage with sweetfern rust cankers.
Gross, H.L.; Ek, A.R.; Patton, R.F.
Year: 1980
Catalog ID: 21803
Issued by: Great Lakes Forestry Centre
Availability: PDF (request by e-mail)
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Studies initiated to determine cause of multileadered nursery seedlings.
Year: 1979
Catalog ID: 37059
Issued by: Great Lakes Forestry Centre
Availability: PDF (request by e-mail)
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Results of a special survey of white spruce plantations in northern Ontario, 1978.
Year: 1979
Catalog ID: 37046
Issued by: Great Lakes Forestry Centre
Availability: PDF (request by e-mail)
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A survey of Ontario Forest Nurseries for the presence of Cylindrocladium floridanum.
Myren, D.T.; Gross, H.L.; Dorworth, C.E.
Year: 1979
Catalog ID: 36481
Issued by: Great Lakes Forestry Centre
Availability: PDF (request by e-mail)
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Reduced growth, cull, and mortality of jack pine associated with sweetfern rust cankers.
Gross, H.L.; Patton, R.F.; Ek, A.R.
Year: 1978
Catalog ID: 37045
Issued by: Great Lakes Forestry Centre
Availability: PDF (request by e-mail)
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Annual report of the forest insect and disease survey, 1976: Ontario region.
Sippell, W.L.; Rose, A.H.; Gross, H.L.
Year: 1978
Catalog ID: 37044
Issued by: Great Lakes Forestry Centre
Availability: PDF (request by e-mail)
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Survey for detection of the European race of Gremmeniella abietina in Canada.
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Distribution of organisms causing important forest tree diseases in Ontario. O-X-262.
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Annual report of the forest insect and disease survey, 1975: Ontario region.
Sippell, W.L.; Gross, H.L.; Rose, A.H.
Year: 1976
Catalog ID: 37043
Issued by: Great Lakes Forestry Centre
Availability: PDF (request by e-mail)
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Annual report of the forest insect and disease survey, 1974: Ontario region.
Sippell, W.L.; Rose, A.H.; Gross, H.L.
Year: 1975
Catalog ID: 37042
Issued by: Great Lakes Forestry Centre
Availability: PDF (request by e-mail)
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Cylindrocladium floridanum in an Ontario forest nursery.
Myren, D.T.; Gross, H.L.; Dorworth, E.B.
Year: 1975
Catalog ID: 36434
Issued by: Great Lakes Forestry Centre
Availability: PDF (request by e-mail)
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Diseases in Ontario forest tree nurseries, 1967 to 1974. O-X-230.
Dorworth, C.E.; Gross, H.L.; Myren, D.T.
Year: 1975
Catalog ID: 8907
Issued by: Great Lakes Forestry Centre
Availability: PDF (download)
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Annual report of the forest insect and disease survey, 1973: Ontario Region.
Sippell, W.L.; Rose, A.H.; Gross, H.L.
Year: 1973
Catalog ID: 37041
Issued by: Great Lakes Forestry Centre
Availability: PDF (request by e-mail)
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Annual report of the forest insect and disease survey, 1972: Ontario region.
Sippell, W.L.; Gross, H.L.; Rose, A.H.
Year: 1973
Catalog ID: 37040
Issued by: Great Lakes Forestry Centre
Availability: PDF (request by e-mail)
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Crown deterioration and reduced growth associated with excessive seed production by birch.
Year: 1972
Catalog ID: 37039
Issued by: Great Lakes Forestry Centre
Availability: PDF (request by e-mail)
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Annual report of the forest insect and disease survey, 1971: Ontario region.
Sippell, W.L.; Rose, A.H.; Gross, H.L.
Year: 1972
Catalog ID: 37038
Issued by: Great Lakes Forestry Centre
Availability: PDF (request by e-mail)
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Nutrient content of artificially defoliated branches of Betula papyrifera.
Year: 1971
Catalog ID: 37037
Issued by: Great Lakes Forestry Centre
Availability: PDF (request by e-mail)
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Annual report of the forest insect and disease survey 1970: Ontario Region.
Sippell, W.L.; Gross, H.L.; Rose, A.H.
Year: 1970
Catalog ID: 37036
Issued by: Great Lakes Forestry Centre
Availability: PDF (request by e-mail)
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Root diseases of forest trees in Ontario. O-X-137.
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Annosus root rot in eastern Canada.
Year: 1969
Catalog ID: 37035
Issued by: Great Lakes Forestry Centre
Availability: PDF (request by e-mail)
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Annual report of the Forest Insect and Disease Survey 1969: Ontario Region.
Sippell, W.L.; Rose, A.H.; Gross, H.L.
Year: 1969
Catalog ID: 37034
Issued by: Great Lakes Forestry Centre
Availability: PDF (request by e-mail)
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Annual report of the forest insect and disease survey 1968: Ontario region.
Sippell, W.L.; Gross, H.L.; Rose, A.H.
Year: 1968
Catalog ID: 37033
Issued by: Great Lakes Forestry Centre
Availability: PDF (request by e-mail)
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Dieback and abnormal growth of yellow birch induced by heavy fruiting. O-X-79.
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Cytopsdora canker of black cherry.
Year: 1967
Catalog ID: 37032
Issued by: Great Lakes Forestry Centre
Availability: PDF (request by e-mail)
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Phacidiopycnis pseudotsugae associated with bleeding cankers on hemlock.
Year: 1967
Catalog ID: 37031
Issued by: Great Lakes Forestry Centre
Availability: PDF (request by e-mail)
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The Echinidintiaceae.
Year: 1964
Catalog ID: 9286
Issued by: Great Lakes Forestry Centre
Availability: PDF (request by e-mail)
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Decay in young grand fir.
Year: 1963
Catalog ID: 37030
Issued by: Great Lakes Forestry Centre
Availability: PDF (request by e-mail)
