Phacidium infestans

Phacidium infestans
	Phacidium infestans on needles of Abies concolor
Scientific classification
Kingdom:	Fungi
Phylum:	Ascomycota
Class:	Leotiomycetes
Subclass:	Leotiomycetidae
Order:	Helotiales
Family:	Phacidiaceae
Genus:	Phacidium
Species:	Phacidium infestans
Binomial name
	Phacidium infestans; P. Karst., (1888)
Synonyms
	Phacidium abietis(Dearn.) J. Reid & Cain, (1963); Phacidium infestans var. abietisDearn., (1926); Phacidium lacerum f. pini-cembraeRehm; Phacidium pini-cembrae(Rehm) Terrier,(1942)

Last updated August 17, 2025

Phacidium infestans is a fungal plant pathogen infecting Douglas-firs commonly known as snow/needle blight.

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Phacidium infestans

Phacidium infestans on needles of Abies concolor
Scientific classification
Kingdom:	Fungi
Phylum:	Ascomycota
Class:	Leotiomycetes
Subclass:	Leotiomycetidae
Order:	Helotiales
Family:	Phacidiaceae
Genus:	Phacidium
Species:	Phacidium infestans
Binomial name
*Phacidium infestans* P. Karst., (1888)
Synonyms
Phacidium abietis(Dearn.) J. Reid & Cain, (1963) Phacidium infestans var. abietisDearn., (1926) Phacidium lacerum f. pini-cembraeRehm Phacidium pini-cembrae(Rehm) Terrier,(1942)