Canadian Forest Service Publications

Constraint of transcontinental spread of Gremmeniella abietina in Canada. 1993. Dorworth, C.E.; Muir, J.A. Pages 111-121 in P. Barklund, S. Livsey, M. Karlman, and R. Stephan, Editors. Shoot diseases of conifers, Proceedings: International symposium ( Meeting of IUFRO Working Party S2.06.02 – Canker and shoot blight of conifers ). June 10-15, 1991, Grapenberg, Sweden. Swedish University of Agricultural Sciences, Uppsala.

Year: 1993

Issued by: Pacific Forestry Centre

Catalog ID: 3303

Language: English

Availability: Not available through the CFS (click for more information).

Mark record


Two of the three primary elements required to initiate an epidemic involving Gremmeniella abietina and Pinus contorta now coincide in western Canada: a susceptible host population and areas of optimum climate and topography. The European Race of the pathogen presently occurs in eastern and central Canada. Internal quarantines are required to constrain the movement of this pathogen into the western forest. Governmental agencies must devote resources both to improve and continue current surveys designed to detect the presence of the pathogen in the west and to initiate immediate sanitation work if the pathogen is accidentally introduced from eastern North America or elsewhere in the North Temperate Zone.