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.
Issued by: Pacific Forestry Centre
Catalog ID: 3306
Availability: Not available through the CFS (click for more information).
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.