# List of tobacco diseases

This is a list of diseases of tobacco (Nicotiana tabacum). They present challenges to the successful cultivation of tobacco.

## Bacterial diseases

Bacterial diseases :
| Angular leaf spot (Synonym: Wildfire, Black fire) | Pseudomonas syringae pv. tabaci) |
| Granville wilt | Ralstonia solanacearum, formerly Pseudomonas solanacearum |
| Hairy roots | Agrobacterium rhizogenes |
| Hollow stalk | Erwinia carotovora subsp. carotovora E. carotovora subsp. atroseptica |
| Leaf gall | Rhodococcus fascians |

## Fungal diseases

Fungal diseases :
| Anthracnose | Colletotrichum destructivum Glomerella glycines [teleomorph] |
| Barn spot | Cercospora nicotianae |
| Barn rot | Several fungi and bacteria |
| Black root rot | Thielaviopsis basicola |
| Bikini | Phytophthora nicotianae |
| Blue mold (downy mildew) | Peronospora tabacina = Peronospora hyoscyami f.sp. tabacina |
| Brown spot | Alternaria alternata |
| Charcoal rot | Macrophomina phaseolina |
| Collar rot | Sclerotinia sclerotiorum |
| Damping-off, Pythium | Pythium spp. Pythium aphanidermatum Pythium ultimum |
| Frogeye leaf spot | Cercospora nicotianae |
| Fusarium wilt | Fusarium oxysporum (several f. sp.) |
| Gray mold | Botrytis cinerea Botryotinia fuckeliana [teleomorph] |
| Mycosphaerella leaf spot | Mycosphaerella nicotianae |
| Olpidium seedling blight | Olpidium brassicae |
| Phyllosticta leaf spot | Phyllosticta nicotiana |
| Powdery mildew | Erysiphe cichoracearum |
| Ragged leaf spot | Phoma exigua var. exigua = Ascochyta phaseolorum |
| Scab | Hymenula affinis = Fusarium affine |
| Sore shin and damping-off | Rhizoctonia solani Thanatephorus cucumeris [teleomorph] |
| Southern stem rot Southern blight | Sclerotium rolfsii Athelia rolfsii [teleomorph] |
| Stem rot of transplants | Pythium spp. |
| Target spot | Rhizoctonia solani |
| Verticillium wilt | Verticillium albo-atrum Verticillium dahliae |

## Nematodes, parasitic

Nematodes, parasitic :
| Bulb and stem (stem break) | Ditylenchus dipsaci |
| Cyst | Globodera solanacearum = Globodera virginiae Globodera tabacum |
| Dagger, American | Xiphinema americanum |
| Foliar | Aphelenchoides ritzemabosi |
| Lesion | Pratylenchus brachyurus Pratylenchus penetrans Pratylenchus spp. |
| Reniform | Rotylenchulus reniformis |
| Root-knot | Meloidogyne arenaria Meloidogyne hapla Meloidogyne incognita Meloidogyne javanica |
| Spiral | Helicotylenchus spp. |
| Stubby-root | Paratrichodorus spp. Trichodorus spp. |
| Stunt | Merlinius spp. Tylenchorhynchus spp. |

## Viral and phytoplasma diseases

Viral mycoplasmalike organisms [MLO] diseases :
| Alfalfa mosaic | Alfalfa mosaic virus |
| Aster yellows | Phytoplasma |
| Beet curly top | Beet curly top virus |
| Bushy top | Tobacco vein distorting virus and tobacco bushy top virus in combination |
| Cucumber mosaic | Cucumber mosaic virus |
| Lettuce necrotic yellows | Lettuce necrotic yellows virus (in Nicotiana glutinosa) |
| Peanut stunt | Peanut stunt virus |
| Rosette disease | Tobacco vein distorting virus and tobacco mottle virus in combination |
| Stolbur | Phytoplasma |
| Tobacco etch | Tobacco etch virus |
| Tobacco leaf curl | Tobacco leaf curl virus |
| Tobacco mosaic | Tobacco mosaic virus and Satellite Tobacco Mosaic Virus |
| Tobacco necrosis | Tobacco necrosis virus |
| Tobacco rattle | Tobacco rattle virus |
| Tobacco ring spot | Tobacco ring spot virus |
| Tobacco streak | Tobacco streak virus |
| Tobacco stunt | Tobacco stunt virus |
| Tobacco vein mottling | Tobacco vein mottling virus |
| Tomato spotted wilt | Tomato spotted wilt virus |
| Vein banding | Potato virus Y |
| Wound tumor | Wound tumor virus |

## Miscellaneous diseases and disorders

Miscellaneous diseases and disorders :
| Brown root rot | Pratylenchus spp. (nematodes) |
| Drought spot | Drought |
| False broomrape | Unknown |
| Frenching | Metabolite of Bacillus cereus |
| Stem break (in Europe) | Ditylenchus dipsaci (nematodes) |
| Sunscald | High light intensity and high temperatures |
| Weather fleck | Ozone |