CTD > Disease By Common Name
Common Name
Scientific Name
Annosus Root and Butt Rot
Heterobasidion annosum
Armillaria Root Disease
Armillaria ostoyae
Other Armillaria species
Armillaria cepistipes
Armillaria gallica
Armillaria nabsnona
Armillaria sinapina
Aspen and Poplar Leaf and Twig Blight
Venturia macularis
Venturia populina
Aspen Trunk Rot
Phellinus tremulae
Atropellis Canker
Atropellis piniphila
Basal and Trunk Scars
Abiotic Disease
Black Stain Root Disease
Leptographium wageneri
Other Broadleaf Foliar Diseases
Ciborinia whetzelii
Didymosporium arbuticola
Discula destructiva
Drepanopezziza populorum
Linospora tetraspora
Marssonina populi
Mycosphaerella populicola
Rhytisma punctatum
Rhytisma salicinum
Septoria populicola
Taphrina populi-salicis
Uncinula bicornis
Brown Crumbly Rot
Fomitopsis pinicola
Brown Cubical Butt and Pocket Rot of Cedar
Postia sericeomollis
Brown Cubical Pocket Rot
Veluticeps fimbriata
Brown Cubical Rot
Laetiporus sulphureus
Brown Cubical Rot of Birch
Piptoporus betulinus
Brown Cubical Sap Rot
Gleopyllum sepiarium
Brown Felt Blight
Herpotrichia juniperi
Neopeckia coulteri
Brown Pocket Rot of Sitka Spruce
Neolentinus kaufmannii
Brown Stringy Trunk Rot
Echinodontium tinctorium
Brown Stringy Trunk Rot of Hardwoods
Spongipellis delectans
Brown Trunk Rot
Fomitopsis officinalis
Cedar Flagging
Cedar Leaf Blight
Didymascella thujina
Chemical and Fume Injury
Comandra Blister Rust
Cronartium comandrae
Conifer - Aspen Rust
Melampsora albertensis
Conifer - Cottonwood Rust
Melampsora occidentalis
Cytospora Canker
Cytospora chrysosperma
Dothistroma Needle Blight
Mycosphaerella pini
Douglas-fir Dwarf Mistletoe
Arceuthobium douglasii
Douglas-fir Needle Blight
Rhabdocline pseudotsugae
Elytroderma Needle Cast
Elytroderma deformans
Fir Broom Rust
Melampsorella caryophyllacearum
Fir - Fireweed Rust
Pucciniastrum epilobii
Flooding
Frost Injury
Grey-Brown Sap Rot
Cryptoporus volvatus
Hardwood Trunk Rot
Phellinus igniarius
Hemlock - Blueberry Rust
Naohidemyces vaccinii
Hemlock Dwarf Mistletoe
Arceuthobium tsugense
Hypoxylon Canker
Hypoxylon mammatum
Laminated Root Rot
Phellinus weirii
Larch Dwarf Mistletoe
Arceuthobium laricis
Larch Needle Diseases
Hypodermella laricis
Meria laricis
Large-Spored Spruce-Labrador Tea Rust
Chrysomyxa ledicola
Lodgepole Pine Dwarf Mistletoe
Arceuthobium americanum
Nectria Canker
Nectria cinnabarina
Other Needle Casts and Blights
Bifusella linearis
Davisomycella ampla
Delphinella abietis
Delphinella balsamae
Lirula macrospora
Lophodermium pinastri
Lophodermium seditiosum
Phomopsis Canker of Douglas-fir
Diaporthe lokoyae
Pine Needle Cast
Lophodermella concolor
Pitted Sap Rot
Trichaptum abietinum
Red Heart Rot
Stereum sanguinolentum
Red Ring Rot
Phellinus pini
Rhizina Root Rot
Rhizina undulata
Rough Bark of Alder
Didymosphaeria oregonensis
Sapsucker Damage
Schweinitzii Butt Rot
Phaeolus schweinitzii
Silver Leaf Disease
Chondrostereum purpureum
Spruce Broom Rust
Chrysomyxa arctostaphyli
Spruce Cone Rusts
Chrysomyxa monensis
Chrysomyxa pirolata
Stalactiform Blister Rust
Cronartium coleosporioides
Sterile Conk Trunk Rot of Birch
Inonotus obliquus
Stringy Butt Rot
Perenniporia subacida
Sunscald
Sweetfern Blister Rust
Cronartium comptoniae
Tomentosus Root Rot
Inonotus tomentosus
Top Breakage
Top Killing
Western Gall Rust
Endocronartium harknessii
White Butt Rot - White Laminated Rot
Ceriporiopsis rivulosa
White Mottled Rot
Ganoderma applanatum
White Pine Blister Rust
Cronartium ribicola
White Spongy Trunk Rot
Fomes fomentarius
White Trunk Rot of Conifers
Phellinus hartigii
Willow - Conifer Rust
Melampsora abieti-capraearum
Melampsora epitea
Melampsora epitea f. sp. tsugae
Melampsora paradoxa
Melampsora ribesii-purpureae
Winter Kill
Yellow Laminated Butt Rot of Poplars
Pholiota populnea
Yellow Pitted Rot
Hericium abietis