List of pear diseases
The following is a list of diseases of pears (Pyrus communis).
Bacterial diseases
Bacterial diseases | |
---|---|
Crown gall | Agrobacterium tumefaciens |
Fire blight | Erwinia amylovora |
Pseudomonas blossom blast and canker | Pseudomonas syringae pv. syringae |
Pear decline | Phytoplasma |
Fungal diseases
Fungal diseases | |
---|---|
Alternaria fruit rot | Alternaria spp. |
Anthracnose canker and bull's-eye rot | Pezicula malicorticus |
Armillaria root rot (shoestring root rot) | Armillaria mellea |
Bitter rot | Glomerella cingulata |
Black rot, leaf spot and canker | Botryosphaeria obtusa |
Black spot (of Japanese pear) | Alternaria alternata |
Blister canker | Helminthosporium papulosum |
Blister disease | Coniothecium chomatosporum |
Blue mold rot | Penicillium spp. |
Botrytis spur and blossom blight | Botrytis cinerea |
Brown rot | |
Cladosporium fruit rot | Cladosporium herbarum |
Clitocybe root rot (mushroom root rot) | |
Coprinus rot | |
Dematophora root rot (Rosellinia root rot) | Rosellinia necatrix |
Diplodia canker | Botryosphaeria stevensii |
Elsinoe leaf and fruit spot | Elsinoe piri |
European canker | Nectria galligena |
Fabraea leaf and fruit spot | Diplocarpon mespili |
Fly speck | Schizothyrium pomi |
Gibberella canker | Gibberella baccata |
Gray mold rot | |
Late leaf spot | |
Mucor fruit rot | Mucor spp. |
Mycosphaerella leaf spot (ashy leaf spot and fruit spot) | Mycosphaerella pyri |
Nectria twig blight (coral spot) | Nectria cinnabarina |
Pear scab | Venturia pyrina |
Perennial canker | Neofabraea perennans |
Phyllosticta leaf spot | Phyllosticta sp. |
Phytophthora crown and root rot (sprinkler rot) | |
Pink mold rot | |
Powdery mildew | |
Pythium dieback | Pythium spp. |
Rhizopus rot | |
Rust, American hawthorne | |
Rust, Kern's pear | |
Rust, Pacific Coast pear | |
Rust, pear trellis (European pear rust) | |
Rust, Rocky Mountain pear | |
Side rot | |
Silver leaf | |
Sooty blotch | |
Thread blight (Hypochnus leaf blight) | Corticium stevensii |
Valsa canker | Valsa ceratosperma |
Wood rot | Trametes versicolor |
Xylaria root rot | Xylaria spp. |
Miscellaneous diseases and disorders
Miscellaneous diseases and disorders | |
---|---|
Alfalfa greening (green stain) | Unknown |
Bitter pit | Localized calcium deficiency |
Black end | Water imbalance |
Black speck (skin speckling) | Associated with low oxygen in storage |
Blossom blast | Boron deficiency |
Brown core | High CO2 |
Core breakdown (Bartlett) | Senescence |
Cork spot | Associated with calcium deficiency |
Green stain | Unknown |
Internal bark necrosis | Unknown |
Mealy core (d`Anjou) | Senescence |
Pink end (Bartlett) | Preharvest low temperature |
Rosette | Unknown |
Scald | Senescence |
Nematodes, parasitic
Nematodes, parasitic | |
---|---|
Dagger, American | |
Dagger | Xiphinema riveri |
Lesion | |
Pin | Paratylenchus spp. |
Root-knot | Meloidogyne spp. |
Viruslike diseases
Viruslike diseases | |
---|---|
Flemish beauty corky pit | Virus suspected |
Pear blister canker | Virus suspected |
Pear decline | Phytoplasma |
Pear freckle pit | Virus suspected |
Pear red mottle | Virus suspected |
Pear ring pattern mosaic | Virus suspected |
Pear rough bark | Virus suspected |
Pear stony pit | Virus suspected |
Pear vein yellows | Virus suspected |
Quince bark necrosis | Virus suspected |
Quince sooty ring spot | Virus suspected |
Quince stunt | Virus suspected |
Quince yellow blotch | Virus suspected |
References
- Common Names of Diseases, The American Phytopathological Society
- v
- t
- e
- Herefordshire Pomona
- List of pear diseases
- Perry
- Tottori Nijisseiki Pear Museum
- World Apple and Pear Association
- Category
- Commons