Publications for:

pest = Arceuthobium abietinum (weed)
crop = Spruce (Picea)

found 2 publications:

2015

First report of white fir dwarf mistletoe (Arceuthobium abietinum f. sp. concoloris) on Engelmann spruce (Picea engelmanii) from Oregon
Plant Disease (2015) 99 (7), p.1041
publishers website - pestinfo wiki

2010

First report of white fir dwarf mistletoe (Arceuthobium abietinum f. sp. concoloris) on Mexican spruce (Picea mexicana) in northern Mexico
Plant Disease (2010) 94 (5), p .635
publishers website - pestinfo wiki