Natural Resources Canada
www.nrcan-rncan.gc.ca
Host Species
- True Fir (Abies spp.)
- Western Larch (Larix occidentalis)
- Lodgepole or Shore Pine (Pinus contorta)
- Englemann Spruce (Picea englemanii)
- White Spruce (Picea glauca)
- Douglas-fir (Pseudotsuga menziesii)
- White Pine (Pinus monticola)
- Ponderosa Pine (Pinus ponderosa)
- Sitka Spruce (Picea sitchensis)
- Western Hemlock (Tsuga heterophylla)
- Mountain Hemlock (Tsuga mertesiana)
- Western Redcedar (Thuja plicata)