Host Plants
confirmed
LikelyPacific Silver Fir
Abies amabilis
Grand Fir
Abies grandis
Subalpine Fir
Abies lasiocarpa
Sitka Spruce
Picea sitchensis
Lodgepole Pine
Pinus contorta
Western White Pine
Pinus monticola
Ponderosa Pine
Pinus ponderosa
Douglas Fir
Pseudotsuga menziesii
Western Red Cedar
Thuja plicata
Western Hemlock
Tsuga heterophylla
Mountain Hemlock
Tsuga mertensiana
Santa Lucia Fir
Abies bracteata
Balsam Fir
Abies concolor
Subalpine Fir
Abies lasiocarpa var. lasiocarpa
Balsam Fir
Abies magnifica
California Red Fir
Abies magnifica var. magnifica
Shasta Red Fir
Abies magnifica var. shastensis
Noble Fir
Abies procera
Weeping Spruce
Picea breweriana
Engelmann Spruce
Picea engelmannii
Dwarf Pine
Pinus albicaulis
Knobcone Pine
Pinus attenuata
Foxtail Pine
Pinus balfouriana
Foxtail Pine
Pinus balfouriana ssp. austrina
Foxtail Pine
Pinus balfouriana ssp. balfouriana
Bolander's Beach Pine
Pinus contorta ssp. bolanderi
Shore Pine
Pinus contorta ssp. contorta
Tamarack Pine
Pinus contorta ssp. murrayana
Coulter Pine
Pinus coulteri
Twoneedle Pinyon
Pinus edulis
Limber Pine
Pinus flexilis
Jeffrey Pine
Pinus jeffreyi
Sugar Pine
Pinus lambertiana
Hickory Pine
Pinus longaeva
Oneneedle Pinyon Pine
Pinus monophylla
Singleleaf Pinyon
Pinus monophylla var. monophylla
Bishop Pine
Pinus muricata
Pacific Ponderosa Pine
Pinus ponderosa var. pacifica
North Plateau Ponderosa Pine
Pinus ponderosa var. ponderosa
Parry Pinyon Pine
Pinus quadrifolia
Monterey Pine
Pinus radiata
Foothill Pine
Pinus sabiniana
Torrey Pine
Pinus torreyana
Torrey Pine
Pinus torreyana ssp. torreyana
Bigcone Douglas Fir
Pseudotsuga macrocarpa
Coast Douglas Fir
Pseudotsuga menziesii var. menziesii
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