Fungal diseases
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Alternaria fruit rot
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Alternaria spp.
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Anthracnose canker and bull's-eye rot
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Pezicula malicorticus
Cryptosporiopsis curvispora [anamorph]
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Armillaria root rot (shoestring root rot)
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Armillaria mellea
Rhizomorpha subcorticalis [anamorph]
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Bitter rot
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Glomerella cingulata
Colletotrichum gloeosporioides [anamorph]
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Black rot, leaf spot and canker
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Botryosphaeria obtusa
Sphaeropsis malorum [anamorph]
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Black spot (of Japanese pear)
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Alternaria alternata
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Blister canker
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Helminthosporium papulosum
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Blister disease
| Coniothecium chomatosporum
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Blue mold rot
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Penicillium spp.
Penicillium expansum
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Botrytis spur and blossom blight
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Botrytis cinerea
Botryotinia fuckeliana [teleomorph]
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Brown rot
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Monilinia fructicola
Monilinia laxa
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Cladosporium fruit rot
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Cladosporium herbarum
Mycosphaerella tassiana [teleomorph]
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Clitocybe root rot (mushroom root rot)
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Armillaria tabescens
= Clitocybe tabescens
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Coprinus rot
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Coprinus psychromorbidus
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Dematophora root rot (Rosellinia root rot)
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Rosellinia necatrix
Dematophora necatrix [anamorph]
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Diplodia canker
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Botryosphaeria stevensii
= Physalospora malorum
Diplodia mutila [anamorph]
|
Elsinoe leaf and fruit spot
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Elsinoe piri
Sphaceloma pirinum [anamorph]
|
European canker
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Nectria galligena
Cylindrocarpon heteronemum [anamorph]
|
Fabraea leaf and fruit spot
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Diplocarpon mespili
= Fabraea maculata
Entomosporium mespili [anamorph]
|
Fly speck
|
Schizothyrium pomi
Zygophiala jamaicensis [anamorph]
|
Gibberella canker
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Gibberella baccata
Fusarium lateritium [anamorph]
|
Gray mold rot
|
Botrytis cinerea
|
Late leaf spot
|
Cercospora minima
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Mucor fruit rot
|
Mucor spp.
Mucor piriformis
|
Mycosphaerella leaf spot (ashy leaf spot and fruit spot)
|
Mycosphaerella pyri
= Mycosphaerella sentina
Septoria pyricola [anamorph]
|
Nectria twig blight (coral spot)
|
Nectria cinnabarina
Tubercularia vulgaris [anamorph]
|
Pear scab
|
Venturia pirina
Fusicladium pyrorum [anamorph]
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Perennial canker
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Neofabraea perennans
Cryptosporiopsis perennans [anamorph]
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Phyllosticta leaf spot
|
Phyllosticta sp.
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Phytophthora crown and root rot (sprinkler rot)
|
Phytophthora cactorum
|
Pink mold rot
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Trichothecium roseum
= Cephalothecium roseum
|
Powdery mildew
|
Podosphaera leucotricha
|
Pythium dieback
|
Pythium spp.
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Rhizopus rot
|
Rhizopus stolonifer
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Rust, American hawthorne
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Gymnosporangium globosum
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Rust, Kern's pear
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Gymnosporangium kernianum
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Rust, Pacific Coast pear
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Gymnosporangium libocedri
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Rust, pear trellis (European pear rust)
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Gymnosporangium fuscum
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Rust, Rocky Mountain pear
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Gymnosporangium nelsonii
|
Side rot
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Phialophora malorum
|
Silver leaf
|
Chondrostereum purpureum
|
Sooty blotch
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Gloeodes pomigena
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Thread blight (Hypochnus leaf blight)
|
Corticium stevensii
= Pellicularia koleroga
= Hypochnus ochroleucus
|
Valsa canker
|
Valsa ceratosperma
Cytospora sacculus [anamorph]
|
Wood rot
|
Trametes versicolor
and various basidiomycetes
|
Xylaria root rot
|
Xylaria spp.
|