This is a list of diseases and disorders found in potatoes.
| Bacterial Diseases | |
|---|---|
| Bacterial wilt = brown rot |
|
| Blackleg and bacterial soft rot |
Pectobacterium carotovorum subsp. atrosepticum
P. c. subsp. carotovorum
carotovora
|
| Pink eye | Pseudomonas fluorescens |
| Ring rot |
Clavibacter michiganensis subsp. sepedonicus
|
| Common scab |
|
| Zebra chip = Psyllid yellows? |
Candidatus Liberibacter solanacearum |
| Fungal diseases | |
|---|---|
| Black dot |
|
| Brown spot and Black pit |
|
| Cercospora leaf blotch |
|
| Charcoal rot |
|
| Choanephora blight | |
| Common rust | |
| Deforming rust | |
| Early blight | |
| Fusarium dry rot | Fusarium spp.
Other spp. include: |
| Fusarium wilt | Fusarium spp. |
| Gangrene |
Phoma solanicola f. foveata
|
| Gray mold |
|
| Phoma leaf spot |
Ph. andigena var. andina |
| Powdery mildew | |
| Rhizoctonia canker and black scurf | |
| Rosellinia black rot |
Rosellinia sp.[which?]
|
| Septoria leaf spot | |
| Silver scurf | |
| Skin spot | |
| Stem rot (southern blight) | |
| Thecaphora smut |
|
| Ulocladium blight | |
| Verticillium wilt | |
| Wart | |
| White mold | |
| Protistan diseases | |
|---|---|
| Late blight (oomycete) | |
| Leak (oomycete) |
Pythium spp. |
| Pink rot (oomycete) |
Phytophthora spp. |
| Powdery scab (Rhizaria) | |
| Viral and viroid diseases | |
|---|---|
| Alfalfa mosaic virus | genus Alfamovirus, Alfalfa mosaic virus (AMV) |
| Andean potato latent virus | genus Tymovirus, Andean potato latent virus (APLV) |
| Andean potato mottle virus | genus Comovirus, Andean potato mottle virus (APMV) |
| Arracacha virus B - Oca strain | genus Nepovirus, Arracacha virus B Oca strain (AVB-O) |
| Beet curly top virus | genus Curtovirus, Beet curly top virus (BCTV) |
| Cucumber mosaic virus | genus Cucumovirus, Cucumber mosaic virus (CMV) |
| Eggplant mottle dwarf virus | genus Rhabdovirus, Eggplant mottle dwarf virus (EMDV) |
| Potato aucuba mosaic virus | genus Potexvirus, Potato aucuba mosaic virus (PAMV) |
| Potato black ringspot virus | genus Nepovirus, Potato black ringspot virus (PBRSV) |
| Potato deforming mosaic virus | genus Geminiviridae Potato deforming mosaic virus subgroup III, (PDMV) |
| Potato latent virus | genus Carlavirus, Potato latent virus (PLV) |
| Potato leafroll virus | genus Luteovirus, Potato leafroll virus (PLRV) |
| Potato mop-top virus (spraing of tubers) | genus Furovirus, Potato mop-top virus (PMTV) |
| Potato rugose mosaic | genus Potyvirus, Potato virus Y (PVY, strains O, N and C) |
| Potato stem mottle (spraing of tubers) | genus Tobravirus, Tobacco rattle virus (TRV) |
| Potato spindle tuber | Potato spindle tuber viroid (PSTVd) |
| Potato yellow dwarf virus | genus Nucleorhabdovirus, Potato yellow dwarf virus (PYDV) |
| Potato yellow mosaic virus | genus Geminiviridae, Potato yellow mosaic virus (PYMV); subgroup III |
| Potato yellow vein virus | Potato yellow vein virus (PYVV) |
| Potato yellowing virus | genus Alfamovirus, Potato yellowing virus (PYV) |
| Potato virus A | genus Potyvirus, Potato virus A (PVA) |
| Potato virus M | genus Carlavirus, Potato virus M (PVM) |
| Potato virus S | genus Carlavirus, Potato virus S (PVS) |
| Potato virus H | genus Carlavirus, Potato virus H (PVH) |
| Potato virus T | genus Trichovirus, Potato virus T |
| Potato virus U | genus Nepovirus, Potato virus U (PVU) |
| Potato virus V | genus Potyvirus, Potato virus V (PVV) |
| Potato virus X | genus Potexvirus, Potato virus X (PVX) |
| Potato virus Y | genus Potyvirus, Potato virus Y (PVY) |
| Solanum apical leaf curling virus | Geminiviridae, Solanum apical leaf curling virus (SALCV) subgroup III |
| Sowbane mosaic virus | genus Sobemovirus, Sowbane mosaic virus (SoMV) |
| Tobacco mosaic virus | genus Tobamovirus, Tobacco mosaic virus (TMV) |
| Tobacco necrosis virus | genus Necrovirus, Tobacco necrosis virus (TNV) |
| Tobacco rattle virus | genus Tobravirus, Tobacco rattle virus (TRV) |
| Tobacco streak virus | genus Ilarvirus, Tobacco streak virus (TSV) |
| Tomato black ring virus | genus Nepovirus, Tomato black ring virus (ToBRV) |
| Tomato mosaic virus | genus Tobamovirus, Tomato mosaic virus (ToMV) |
| Tomato spotted wilt virus | genus Tospovirus, Tomato spotted wilt virus (TSWV) |
| Tomato yellow mosaic virus | genus Geminiviridae, Tomato yellow mosaic virus (ToYMV) subgroup III |
| Wild potato mosaic virus | genus Potyvirus, Wild potato mosaic virus (WPMV) |
| Nematode parasitic | |
|---|---|
| Potato cyst nematode | |
| Lesion nematode |
Pratylenchus spp. |
| Potato rot nematode | |
| Root knot nematode |
Meloidogyne spp. |
| Sting nematode | |
| Stubby-root nematode |
Paratrichodorus spp. |
| Phytoplasmal diseases | |
|---|---|
| Aster yellows | Aster yellows group of phytoplasmas |
| Witches'-broom | Witches’ broom phytoplasma |
| BLTVA | The beet leafhopper-transmitted virescence agent |
| Miscellaneous diseases and disorders | |
|---|---|
| Aerial tubers | Phytoplasma infection or anything that constricts the stem, including but not limited to Rhizoctonia canker, heat necrosis, chemical injury, mechanical injury, wind injury |
| Air pollution injury | Photochemical oxidants (primarily ozone), sulfur oxides |
| Black heart | Oxygen deficiency of internal tuber tissue |
| Blackspot bruise | Bruising, pressure contact |
| Elephant hide | Roughening of tuber skin due to physiological or environmental causes |
| Hollow heart | Excessively rapid tuber enlargement |
| Internal brown spot = heat necrosis | Oxygen deficiency of tuber accompanying high soil temperature |
| Jelly end rot | Carbohydrate translocation due to second growth |
| Physiological leaf roll | Response to adverse environment |
| Psyllid yellows | Toxic saliva of the potato (tomato) psyllid, Paratrioza cockerelli |
| Shatter bruise | Mechanical damage to tuber |
| Skinning | Mechanical damage to tuber |
| Stem-end browning | Exact cause(s) unknown, chemical injury, viruses or other pathogens. |