Diseases caused by pathogens
A pathogen is a living organism or virus directly capable of causing disease. The term “disease” is defined as a harmful deviation from the normal functioning of physiological processes. Many taxonomically diverse organisms become phytopathogenic (cause plant diseases) under suitable conditions. Plant pathogens can be categorized by their formal biological classification (taxonomy).
Index of disease names and scientific names of their causal pathogens
The entries for diseases caused by pathogens have sections containing nomenclature and taxonomy; general information and importance; distribution and hosts; symptoms and signs; disease cycle; damage; prevention and management; selected references; and photographs depicting various stages of the pathogen and the damage caused.
Fir needle cast (Lirula abietis-concoloris)
Pathogen name: Lirula abietis-concoloris (Mayr ex Dearn.) Darker
Fomes fomentarius (L.) Fr. (Common name for this fungus: tinder conk)
Disease name: White spongy trunk rot
Fomitopsis betulina (Bull.) B.K. Cui, M.L. Han & Y.C. Dai (Common name for the fungus: razor strop fungus)
Disease name: Brown cubical rot of birch
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Fir broom rust
Pathogen name: Melampsorella elatina (Alb. & Schwein.) Arthur
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Fir needle cast (Isthmiella abietis)
Pathogen name: Isthmiella abietis (Dearn.) Darker
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Fir needle cast (Isthmiella quadrispora)
Pathogen name: Isthmiella quadrispora Ziller
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Fir needle cast (Lirula abietis-concoloris)
Pathogen name: Lirula abietis-concoloris (Mayr ex Dearn.) Darker
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Fir needle cast (Lirula punctata)
Pathogen name: Lirula punctata (Darker) Darker
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Fir needle cast (Lophodermium decorum)
Pathogen name: Lophodermium decorum Darker
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Fir needle cast (Lophodermium lacerum)
Pathogen name: Lophodermium lacerum Darker
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Fir-blueberry rust
Pathogen name: Pucciniastrum geoppertianum (Kuehn) Kleb.
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Fir-bracken rust
Pathogen name: Uredinopsis pteridis
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Fir-fireweed rust
Pathogen name: Pucciniastrum epilobii G. Otth
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Fir-lady fern rust
Pathogen name: Uredinopsis longimucronata
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Fir-oak fern rust (Uredinopsis phegopteridis)
Pathogen name: Uredinopsis phegopteridis
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Fir-oak-fern rust (Hyalopsora aspidiotus)
Pathogen name: Hyalopsora aspidiotus (Magn.) Magn.
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Fir-ostrich fern rust
Pathogen name: Uredinopsis struthiopteridis
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Fir-polypody rust
Pathogen name: Milesina leviuscula (Dietel & Holw.) Hirats.
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Fir-willow rust
Pathogen name: Melampsora abietis-capraearum Tub.
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Fire blight
Pathogen name: Erwinia amylovora (Burrill) Winslow. et al.
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Fluoride injury
Pathogen name: Veneficium fluoris Humain
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Fomes fomentarius
(L.) Fr. (Common name for this fungus: tinder conk)
Disease name: White spongy trunk rot
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Fomitopsis betulina
(Bull.) B.K. Cui, M.L. Han & Y.C. Dai (Common name for the fungus: razor strop fungus)
Disease name: Brown cubical rot of birch
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Fomitopsis officinalis
(Villars.:Fr.) Bondartsev & Singer
Disease name: Brown trunk rot
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Fomitopsis pinicola
(Sw.:Fr.) P. Karst.
Disease name: Pinicola brown crumbly rot
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Frost damage of poplars
Pathogen name: Gelatio populi