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

Mark record

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.