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.
Schweinitzii butt rot
Pathogen name: Phaeolus schweinitzii (Fr.) Pat. (Common names for the fungus: velvet-topped polypore, dyer’s polypore)
Scleroderris canker North American strain
Pathogen name: Gremmeniella abietina var. NA (Lagerberg) Morelet
Scleroderris canker, European strain
Pathogen name: Gremmeniella abietina var. Eu (Lagerberg) Morelet
Septoria leaf spot of poplars
Pathogen name: Sphaerulina populicola (Peck) Quaedvl., Verkley & Crous
Small-spored spruce-Labrador tea rusts
- Chrysomyxa nagodhii P.E. Crane
- Chrysomyxa neoglandulosi P.E. Crane
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Sawadaea bicornis
(Wallr.) Homma
Disease name: Powdery mildew
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Schweinitzii butt rot
Pathogen name: Phaeolus schweinitzii (Fr.) Pat. (Common names for the fungus: velvet-topped polypore, dyer’s polypore)
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Scleroderris canker North American strain
Pathogen name: Gremmeniella abietina var. NA (Lagerberg) Morelet
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Scleroderris canker, European strain
Pathogen name: Gremmeniella abietina var. Eu (Lagerberg) Morelet
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Septoria leaf spot of poplars
Pathogen name: Sphaerulina populicola (Peck) Quaedvl., Verkley & Crous
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Sericeomollis brown cubical butt
Pathogen name: Postia sericeomollis (Romell) Jülich
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Shepherd’s crook of aspen
Pathogen name: Venturia moreletii Rulamort
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Siccitas hiemalis
Nature
Disease name: Winter drying injury
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Silver leaf disease
Pathogen name: Chondrostereum purpureum (Pers.:Fr) Pouzar.
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Sirococcus Shoot Blight
Pathogen name: Sirococcus conigenus (Dc.) Cannon & Minter
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Small-spored spruce-Labrador tea rusts
Pathogen names:
- Chrysomyxa nagodhii P.E. Crane
- Chrysomyxa neoglandulosi P.E. Crane
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Snow blight
Pathogen name: Phacidium infestans P. Karst
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Sooty bark disease
Pathogen name: Cryptostroma corticale (Ellis & Everh.) P.H. Greg. & S. Waller
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Speckled tar spot
Pathogen name: Rhytisma punctatum (Pers.:Fr.) Fr.
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Sphaeropsis sapinea
(Fr.) Dyko & B. Sutton
Disease name: Diplodia tip blight (Sphaeropsis sapinea)
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Sphyrapicus varius
L.
Disease name: Yellow-bellied sapsucker
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Spongipellis delectans
(Peck) Murrill
Disease name: White spongy trunk rot of hardwoods
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Spruce broom rust
Pathogen name: Chrysomyxa arctostaphyli Dietel
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Spruce cone rusts
Pathogen name: Chrysomyxa monensis Ziller
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Spruce needle cast (Lophodermium piceae)
Pathogen name: Lophodermium piceae (Fckl.)
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Spruce needle cast (Lophodermium uncinatum)
Pathogen name: Lophodermium uncinatum Darker
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Stalactiform blister rust
Pathogen name: Cronartium coleosporioides Arthur
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Stereum sanguinolentum
(Albertini & Schwein) Fr.
Disease name: Red heart rot
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Sterile conk trunk rot of birch
Pathogen name: Inonotus obliquus (Pers.:Fr.) Pilát
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Stringy Butt Rot
Pathogen name: Perenniporia subacida (Peck) Donk
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Suffocacio aeris
Humain
Disease name: Copper ore dust asphyxiation
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Suffocacio amiantis
Humain
Disease name: Asbestos dust asphyxiation
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Sulphur oxide injury
Pathogen name: Veneficium sulfureum Humain
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Sulphureus brown cubical rot
Pathogen name: Laetiporus sulphureus (Bull.:Fr.) Murrill
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Summer drying injury
Pathogen name: Siccitas aestiva Nature
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Sunscald of hardwoods
Pathogen name: Adustio solaris angiospermae Nature
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Sweetfern blister rust
Pathogen name: Cronartium comptoniae Arth.