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Grey foliage

Camarosporium strobilinum
( Camarosporium Blight of True Fir )

Caripeta divisata
( Gray Spruce Looper )

Delphinella spp.
( Delphinella Needle Blight of True Firs )

Dendroctonus pseudotsuga
( Douglas-fir Beetle )

Elytroderma deformans
( Elytroderma Needle Cast )

Epipolaeum abietis
( Black Mildew )

Herpotrichia juniperi
( Brown Felt Blight )

Isthmiella crepidiformis
( Isthmiella Needle Blight of Spruce )

Isthmiella spp.
( Isthmiella Needle Blight )

Lirula macrospora
( Lirula Needle Blight )

Lirula spp.
( True Fir Blights )

Lophodermium piceae
( Common Needle Diseases of Spruce )

Lophodermium spp.
( Fir Needle Blights )

Lymantria dispar
( Gypsy Moth )

Phacidium abietis
( Snow Blight )

Virgella robusta
( True Fir Blights )