Douglas-fir (Pseudotsuga menziesii)

Adelges cooleyi
( Cooley spruce gall adelgid )

Botrytis cinerea
( Gray mould )

Bradysia spp.
( Fungus gnats )

Choristoneura occidentalis
( Western spruce budworm )

Chrysoteuchia topiaria
( Cranberry girdler )

Cinara spp.
( Giant conifer aphids )

Colletotrichum acutatum
( Colletotrichum blight )

Colletotrichum gloeosporioides
( Colletotrichum blight )

Cylindrocarpon destructans
( Cylindrocarpon root rot )

Elatobium abietinum
( Green spruce aphid )

Fusarium oxysporum
( Fusarium top blight )

Fusarium spp.
( Hypocotyl rot )

Fusarium spp.
( Post-emergence damping-off )

Fusarium spp.
( Fusarium root rot )

Lygus lineolaris
( Lygus bug )

Melampsora medusae
( Melampsora foliage rust - conifer-aspen rust )

Melampsora occidentalis
( Melampsora foliage rust - conifer-cottonwood rust )

Meria laricis
( Larch needle cast )

Oligonychus ununguis
( Spruce spider mite )

Orgyia antiqua
( Rusty tussock moth )

Otiorhynchus ovatus
( Strawberry root weevil )

Otiorhynchus spp.
( - Adults Root weevil )

Otiorhynchus sulcatus
( Black vine weevils )

Pachypappa tremulae
( Conifer root aphid )

Peridroma saucia
( Variegated cutworms )

Phoma spp.
( Hypocotyl rot )

Phomopsis spp.
( Phomopsis canker and foliage blight )

Phytophthora spp.
( Phytophthora root rot )

Polyphylla decemlineata
( June beetles (white grubs) )

Prociphilus xylostei
( Conifer root aphid )

Pythium spp.
( Post-emergence damping-off )

Pythium spp.
( Pythium root rot )

Pythium spp.
( Needle dieback )

Rosellinia minor
( Rosellinia blight )

Sirococcus strobilinus
( Sirococcus blight )

Tehama bonifatella
( (no common name) )

Thelephora terrestris
( Smothering fungus )

Tipula paludosa
( European marsh crane fly (leatherjackets) )

Xiphinema bakeri
( Corky root disease )