Abstract
General opinion supports the view that Scleroderris canker in eastern Canada, in both disease forms, resulted from infections by exotic or imported isolates. Western pathologists believe that the pathogen in the Rocky Mountains is native to the area, where it does not cause economically important damage. Earliest records of occurrence of Gremmeniella abietina (Largerb.) Morlet (=Ascocalyx abietina) in both eastern and western Canada are from the 1960s. Structure of plantations established prior to 1940 in present infection zones indicates that the pathogen was not present at that time.
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© 1984 Martinus Nijhoff/Dr W. Junk Publishers, The Hague
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Dorworth, C.E. (1984). History of Scleroderris Canker in Canada. In: Manion, P.D. (eds) Scleroderris canker of conifers. Forestry Sciences, vol 13. Springer, Dordrecht. https://doi.org/10.1007/978-94-009-6107-4_3
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DOI: https://doi.org/10.1007/978-94-009-6107-4_3
Publisher Name: Springer, Dordrecht
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