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Armillaria nabsnona
(Armillaria Root Disease)

Armillaria ostoyae
(Armillaria Root Disease)

Armillaria sinapina
(Armillaria Root Disease)

Chondrostereum purpureum
(Silver Leaf Disease)

Cytospora chrysosperma
(Cytospora Canker)

Fomes fomentarius
(White Spongy Trunk Rot)

Fomitopsis pinicola
(Brown Crumbly Rot)

Ganoderma applanatum
(White Mottled Rot)

Gleophyllum sepiarium
(Brown Cubical Sap Rot)

Hypoxylon mammatum
(Hypoxylon Canker)

Laetiporus sulphureus
(Brown Cubical Rot)

Melampsora abieti-capraearum
(Willow - Conifer Rust)

Melampsora epitea
(Willow - Conifer Rust)

Melampsora tsugae
(Willow - Conifer Rust)

Melampsora paradoxa
(Willow - Conifer Rust)

Melampsora ribesii-purpureae
(Willow - Conifer Rust)

Nectria cinnabarina
(Nectria Canker)

Phellinus igniarius
(Hardwood Trunk Rot)

Rhytisma salicinum
(Tar Spot of Willow)

Taphrina populi-salicis
(Other Broadleaf Foliar Diseases)