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)