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.
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Dacrymyces chrysospermus
Berk & M.A. Curtis
Disease name: Brown rot
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Davisomycella ampla
(J.J. Davis) Darker
Disease name: Tar spot needle cast
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Delphinella balsameae
(Waterm.) E. Müller
Disease name: Balsam fir tip blight
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Diaporthe lokoyae
Funk
Disease name: Phomopsis canker of douglas-fir
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Didymascella thujina
(E.J. Durand) Maire
Disease name: Cedar leaf blight
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Didymosporium arbuticola
Zeller
Disease name: Leaf spot (Didymosporium arbuticola)
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Diplodia tip blight (Sphaeropsis sapinea)
Pathogen name: Sphaeropsis sapinea (Fr.) Dyko & B. Sutton
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Discocaninia canker
Pathogen name: Discocainia treleasei (Sacc.) Reid & Funk
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Dogwood anthracnose
Pathogen name: Discula destructiva Redlin
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Dothichiza canker of poplar
Pathogen name: Cryptodiaporthe populea (Sacc.) Butin
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Dothistroma needle blight
Pathogen name: Mycosphaerella pini Rost. in Munk
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Douglas fir dwarf mistletoe
Pathogen name: Arceuthobium douglasii Engelm.
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Douglas-fir needle cast
Pathogen name: Rhabdocline pseudotsugae Syd.
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Dryocopus pileatus
L.
Disease name: Pileated woodpecker
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Dutch elm disease
Pathogen name: Ophiostoma ulmi (Buisman) Nannf.