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; tree parts affected; symptoms and signs; disease cycle; damage; prevention and management; photographs depicting various stages of the pathogen and the damage caused; and selected references.
Rhabdocline epiphylla (Parker & Reid) J.K. Stone & D.S. Gernandt
Disease name: Douglas-fir needle cast
Rhabdocline oblonga (Parker & Reid) J.K. Stone & D.S. Gernandt
Disease name: Douglas-fir needle cast
Rhabdocline obovata (Parker & Reid) J.K. Stone & D.S. Gernandt
Disease name: Douglas-fir needle cast
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Rasutoria abietis
(Dearn.) M.E. Barr
Disease name: Black mildew
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Red butt rot and sap rot
Pathogen name: Cryptoporus volvatus (Peck) Shear
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Red heart rot
Pathogen name: Stereum sanguinolentum (Albertini & Schwein) Fr.
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Red ring rot
Pathogen name: Phellinus pini (Thore:Fr.) A. Ames
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Rhabdocline epiphylla (Parker & Reid) J.K. Stone & D.S. Gernandt
Disease name: Douglas-fir needle cast
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Rhabdocline oblonga (Parker & Reid) J.K. Stone & D.S. Gernandt
Disease name: Douglas-fir needle cast
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Rhabdocline obovata (Parker & Reid) J.K. Stone & D.S. Gernandt
Disease name: Douglas-fir needle cast
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Rhabdocline pseudotsugae Syd.
Disease name: Douglas-fir needle cast
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Rhabdocline weirii A.K. Parker & J. Reid
Disease name: Douglas-fir needle cast
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Rhizina root rot
Pathogen name: Rhizina undulata Fr.:Fr.
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Rhytisma americanum
Hudler & Banik
Disease name: Tar spot
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Rhytisma punctatum
(Pers.) Fr.
Disease name: Speckled tar spot
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Rhytisma salicinum
(Pers.:Fr.) Fr.
Disease name: Tar spot (Rhytisma salicinum )
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Ribes-willow rust
Pathogen name: Melampsora ribesii-purpureae