Canadian Forest Service Publications

Evidence of resistance to hemlock dwarf mistletoe (Arceuthobium tsugense) in western hemlock (Tsuga heterophylla) clones. 1993. Smith, R.B.; Wass, E.F.; Meagher, M.D. European Journal of Forest Pathology 23: 163-170.

Year: 1993

Issued by: Pacific Forestry Centre

Catalog ID: 3306

Language: English

Availability: Order paper copy (free)

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Abstract

Records from western hemlock (Tsuga heterophylla) trees naturally exposed to infection by hemlock dwarf mistletoe (Arceuthobium tsugense) and controlled inoculations of grafted branch scions from a selection of these trees indicated a repeatability of the levels of resistance to the disease in the clonal material. Evidence pointed to a resistance mechanism operating within, rather than outside, the host branch.