List of apple diseases
This article is a list of diseases of apples (Malus domestica).
Bacterial diseases | |
---|---|
Blister spot | Pseudomonas syringae pv. papulans |
Crown gall | Agrobacterium tumefaciens |
Fire blight | Erwinia amylovora |
Hairy root | Agrobacterium rhizogenes |
Fungal diseases
Nematodes, parasitic
Nematodes, parasitic | |
---|---|
Dagger nematode | |
Lesion nematode | |
Pin nematode |
Paratylenchus spp. |
Ring nematode |
Criconemella spp. |
Root-knot nematode |
Meloidogyne spp. |
Viral diseases
Viral diseases | |
---|---|
Apple chlorotic leafspot | genus Trichovirus, Apple chlorotic leafspot virus (ACLSV) |
Apple dwarf (Malus platycarpa) | Apple stem pitting virus (ASPV) (? not US/CAN) |
Apple flat apple | genus Nepovirus, Cherry rasp leaf virus (CRLV) |
Apple mosaic | genus Ilarvirus, Apple mosaic virus (ApMV) genus Ilarvirus, Tulare apple mosaic virus (TAMV) |
Apple stem grooving = Apple decline of Virginia crab | genus Capillovirus, Apple stem grooving virus (ASGV) |
Apple stem pitting = apple Spy 227 epinasty and decline | Apple stem pitting virus (ASPV) |
Apple union necrosis and decline | genus Nepovirus, Tomato ringspot virus (ToRSV) |
Viroid diseases
Viroid diseases | |
---|---|
Swollen apple | Apple fruit crinkle viroid (AFCVd) |
Apple dimple fruit | Apple scar skin viroid (ASSVd) |
Apple fruit crinkle | Apple fruit crinkle viroid (AFCVd) (Japan) |
Apple scar skin = apple dapple, apple sabi-ka, apple bumpy fruit | Apple scar skin viroid (ASSVd) |
Suspected viral- and viroid-like diseases
Suspected viral- and viroid-like diseases | |
---|---|
Dead spur | GTP, unidentified |
False sting | GTP, virus suspected |
Green crinkle | GTP, virus suspected |
Rough skin | GTP, virus suspected |
Star crack | GTP, virus suspected |
Phytoplasmal diseases
Phytoplasmal diseases | |
---|---|
Apple chat fruit | Phytoplasma suspected |
Apple decline | Phytoplasma suspected |
Apple proliferation | Phytoplasma |
Rubbery wood | Phytoplasma suspected |
Miscellaneous diseases and disorders
Miscellaneous diseases and disorders | |
---|---|
Bitter pit | Localized calcium deficiency |
Blossom blast | Boron deficiency |
Burrknot | Genetically predisposed rootstock |
Fruit cracking | Genetic |
Fruit russet | Frost, sprays, etc. |
Green mottle | Unidentified |
Hollow apple | High temperature |
Internal bark necrosis = measles | Low pH and mineral nutrient imbalance |
Internal browning | Boron and calcium deficiencies, etc. |
Jonathan spot | Reduced by controlled atmosphere storage |
Narrow leaf | Genetic |
Necrotic leaf blotch of ‘Golden Delicious’ | Rapid synthesis of gibberellins triggered by environmental factors |
Storage scald | Injury to fruit surfaces by naturally occurring gases produced by the fruit |
Sunburn | Sun injury to fruit |
Sunscald | Freezing of bark following high temperatures in winter |
Water core | Sorbitol accumulation |
References
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