List of Douglas-fir diseases
Encyclopedia

Fungal diseases

Fungal diseases
Annosus root disease Heterobasidion annosum
Heterobasidion annosum
Heterobasidion annosum is a basidiomycete fungus in the family Bondarzewiaceae. It is considered to be the most economically important forest pathogen in the Northern Hemisphere. Heterobasidion annosum is widespread in forests in the United States and is responsible for the loss of one billion U.S....



Spiniger meineckellum [anamorph]
Armillaria root disease Armillaria solidipes

Armillaria spp.
Black stain root disease Leptographium wageneri var. pseudotsugae
Blue stain fungus Grosmannia clavigera
Bleeding sap rot Stereum sanguinolentum
Stereum sanguinolentum
Stereum sanguinolentum is a species of fungus in the Stereaceae family. A plant pathogen, it causes red heart rot, a red discoloration on conifers, particularly spruce. Fruit bodies are produced on dead wood, or sometimes on dead branches of living trees. They are a thin leathery crust of the wood...

Brown crumbly rot Fomitopsis pinicola
Fomitopsis pinicola
Fomitopsis pinicola, in English sometimes known as Red Banded Polypore, is a polypore mushroom of the genus Fomitopsis. The species is common throughout the temperate Northern hemisphere. An alternative binomial name is Fomes pinicola....

Brown cubical rot Laetiporus sulphureus
Laetiporus sulphureus
Laetiporus sulphureus is a species of bracket fungus found in Europe and North America. Its common names are sulphur polypore, sulphur shelf, and chicken mushroom. Its fruit bodies grow as striking golden-yellow shelf-like structures on tree trunks and branches...

Brown trunk rot Fomitopsis officinalis
Charcoal root disease Macrophomina phaseolina
Macrophomina phaseolina
Macrophomina phaseolina is a Botryosphaeriaceae fungus that is a plant pathogen that causes charcoal rot on many plant species including Zea mays and Pinus elliottii.- External links :* *...

Conifer - aspen rust Melampsora medusae
Melampsora medusae
Melampsora medusae is a fungal pathogen, causing a disease of woody plants. The infected trees' leaves turn yellowish-orange. The disease affects mostly conifers, e.g. the Douglas-fir, western larch, tamarack, ponderosa, and lodgepole pine trees, but also some broadleaves, e.g. trembling aspen and...

Conifer - cottonwood rust Melampsora occidentalis
Melampsora occidentalis
Melampsora occidentalis is a plant pathogen.- External links :* *...

Cytospora canker Leucostoma kunzei
Leucostoma kunzei
The pathogenic fungus, Leucostoma kunzei is the causal agent of Leucostoma canker a disease of spruce trees found in the Northern Hemisphere, predominantly on Norway spruce and Colorado blue spruce...



Cytospora kunzei [anamorph]

Valsa abietis
Valsa abietis
Valsa abietis is a plant pathogen.- External links :* *...



Cytospora abietis [anamorph]
Damping-off Fusarium
Fusarium
Fusarium is a large genus of filamentous fungi widely distributed in soil and in association with plants. Most species are harmless saprobes, and are relatively abundant members of the soil microbial community. Some species produce mycotoxins in cereal crops that can affect human and animal health...

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Phytophthora
Phytophthora
Phytophthora is a genus of plant-damaging Oomycetes , whose member species are capable of causing enormous economic losses on crops worldwide, as well as environmental damage in natural ecosystems. The genus was first described by Heinrich Anton de Bary in 1875...

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Pythium
Pythium
Pythium is a genus of parasitic oomycete. Most species are plant parasites, but Pythium insidiosum is an important pathogen of animals...

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Rhizoctonia
Rhizoctonia
Rhizoctonia is a genus of anamorphic fungi in the order Cantharellales. Species do not produce spores, but are composed of hyphae and sclerotia and are asexual states of fungi in the genus Thanatephorus. Rhizoctonia species are saprotrophic, but are also facultative plant pathogens, causing...

spp.
Dermea canker Dermea pseudotsugae
Dermea pseudotsugae
Dermea pseudotsugae is a plant pathogen.- External links :* *...

Dime canker Durandiella pseudotsugae
Durandiella pseudotsugae
Durandiella pseudotsugae is a plant pathogen which causes Dime canker in Douglas-fir trees.- External links :* *...

Fusarium hypocotyl rot Fusarium oxysporum
Fusarium oxysporum
Fusarium oxysporum Schlecht. as emended by Snyder and Hansen comprises all the species, varieties and forms recognized by Wollenweber and Reinking within an infrageneric grouping called section Elegans...

Gray-brown sap rot Cryptoporus volvatus
Cryptoporus volvatus
Cryptoporus volvatus is a polypore fungus that decomposes the rotting sapwood of conifers. It is an after effect of the pine bark beetle bug attack. Also known as the "Grey-Brown Sap Rot" mushroom....

Gray mold Botrytis cinerea
Botrytis cinerea
Botrytis cinerea is a necrotrophic fungus that affects many plant species, although its most notable hosts may be wine grapes. In viticulture, it is commonly known as botrytis bunch rot; in horticulture, it is usually called grey mould or gray mold.The fungus gives rise to two different kinds of...



Botryotinia fuckelinana [teleomorph]
Laminated root rot Phellinus weirii
Phellinus weirii
Phellinus weirii is a plant pathogen causing laminated root rot in certain conifers, typically Douglas-fir and western redcedar. It is widespread in the Douglas Fir Growing regions of British Columbia, Washington and Oregon.-Overview:...

Phoma seedling blight Phoma eupyrena
Phoma eupyrena
Phoma eupyrena is a fungal plant pathogen.- External links :* *...

Phomopsis canker Diaporthe lokoyae
Diaporthe lokoyae
Diaporthe lokoyae is a plant pathogen.- External links :...



Phomopsis lokoyae
Phomopsis lokoyae
Phomopsis lokoyae is a plant pathogen.- External links :* *...

[anamorph]
Phytophthora root rot Phytophthora
Phytophthora
Phytophthora is a genus of plant-damaging Oomycetes , whose member species are capable of causing enormous economic losses on crops worldwide, as well as environmental damage in natural ecosystems. The genus was first described by Heinrich Anton de Bary in 1875...

spp.
Pitted sap rot Trichaptum abietinum
Trichaptum abietinum
Trichaptum abietinum is a species of fungus in the Polyporaceae family. It is saprophytic, growing from dead conifer wood.-External links:* at Index Fungorum...

Red-brown butt rot Phaeolus schweinitzii
Phaeolus schweinitzii
Phaeolus schweinitzii, commonly known as velvet-top fungus, dyer's polypore,Norway Chicken, or dyer's mazegill, is a fungal plant pathogen that causes butt rot on conifers such as Douglas-fir, spruce, fir, hemlock, pine, and larch. P...

Red ring rot Phellinus pini
Phellinus pini
Phellinus pini is a plant pathogen usually known as "Red ring rot" and "White speck." Historically, it has caused massive economic losses to the unsuspecting who have purchased older timber stands expecting good yields of lumber, as its presence often degrades a large tree to pulp wood quality. ...

Rhabdocline needle cast Rhabdocline pseudotsugae
Rhabdocline pseudotsugae
Rhabdocline pseudotsugae is a fungal plant pathogen. The pathogen, along with Rhabdocline weirii causes Rhabdocline needlecast; R. weirii only affects Douglas-fir trees. The disease causes the needles of the tree to discolor and eventually fall from the tree. It was originally common to the Rocky...



Rhabdocline weirii
Rhabdocline weirii
Rhabdocline weirii is a fungal plant pathogen. The pathogen, along with Rhabdocline pseudotsugae, causes Rhabdocline needlecast; R. weirii only affects Douglas-fir trees. The disease causes the needles of the tree to discolor and eventually fall from the tree...

Rhizina root disease Rhizina undulata
Rhizina undulata
Rhizina undulata, commonly known as the pine firefungus, is a species of fungi in the genus Rhizina, family Rhizinaceae. The fruiting bodies are dark purple brown with a bright yellow margin, crust-like and attached to the growing surface by numerous yellow rhizoids. R...

Rose fomes rot Fomitopsis cajanderi
Fomitopsis cajanderi
Fomitopsis cajanderi is a widely distributed bracket fungus. Commonly known as the rosy conk due to its rose-colored pore surface, it causes a disease called a brown pocket rot in various tree species.- External links :* synonyms...

Rust-red stringy white rot Echinodontium tinctorium
Echinodontium tinctorium
Echinodontium tinctorium is a plant pathogen. It is commonly known as the Indian paint fungus.Some Plateau Indian tribes applied it to skin to prevent it from chapping.-External links:*...

Sclerophoma dieback Sydowia polyspora
Sydowia polyspora
Sydowia polyspora is a plant pathogen.- External links :* *...



Sclerophoma pythiophila [anamorph] = Sclerophoma semenospora [anamorph]
Snow blight Phacidium abietis
Sparrasis root rot Sparrasis crispa
Stringy butt rot Perenniporia subacida
Perenniporia subacida
Perenniporia subacida is a plant pathogen.- External links :* *...

Swiss needle cast Phaeocryptopus gaeumannii
Tomentosus root rot Inonotus tomentosus
Upper stem canker Phoma eupyrena
Phoma eupyrena
Phoma eupyrena is a fungal plant pathogen.- External links :* *...



Fusarium avenaceum

Fusarium sambucinum
White stringy rot Resinicium bicolor
Resinicium bicolor
Resinicium bicolor is a plant pathogen.- External links :* *...

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