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 )