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Birch - Betula spp.

Columnocystis abietina
( Wound Parasites )

Echinodontium tinctorium
( Brown Stringy Trunk Rot )

Fomitopsis pinicola
( Brown Crumbly Rot )

Fusarium oxysporum
( Fusarium Root Rot )

Ganoderma applanatum
( White Mottled Rot )

Hyphantria cunea
( Fall Webworm )

Lymantria dispar
( Gypsy Moth )

Malacosoma californicum
( Northern Tent Caterpillar )

Malacosoma disstria
( Forest Tent Caterpillar )

Phellinus pini
( Red Ring Rot )

Phellinus tremulae
( Aspen Trunk Rot )

Stereum sanguinolentum
( Red Heart Rot )