# List of elm diseases

This article is a list of diseases of elms (Ulmus spp.).

## Bacterial diseases

Bacterial diseases :
| Bacterial wetwood/slime flux | Enterobacter nimipressuralis = Erwinia nimipressuralis Bacillus megaterium Pseudomonas fluorescens |
| Discoloration (xylem) | Bacteria |
| Elm leaf scorch | Xylella fastidiosa |

## Fungal diseases

Fungal diseases :
| Anthracnose | Asteroma inconspicuum = Gloeosporium inconspicuum Gloeosporium ulmicola |
| Armillaria root rot Shoestring root rot | Armillaria mellea Rhizomorpha subcorticalis [anamorph] |
| Blackspot | Asteroma ulmeum = Gloeosporium ulmeum Stegophora ulmea [teleomorph] = Gnomonia ulmea |
| Botryodiplodia canker | Sphaeropsis ulmicola = Botryodiplodia hydrodermia |
| Botryosphaeria canker | Botryosphaeria dothidea Fusicoccum aesculi [anamorph] |
| British tar spot | Dothidella ulmi |
| Chalara root rot | Chalara thielavioides |
| Coniothyrium canker | Coniothyrium spp. Coniothyrium celtidis-australis Leptosphaeria coniothyrium Diapleella coniothyrium [anamorph] |
| Cytospora canker | Cytospora chrysosperma Valsa sordida [anamorph] Cytospora leucosperma = Cytospora ambiens Valsa ambiens [anamorph] Cytospora nivea Leucostoma nivea [anamorph] |
| Cytosporina canker | Cytosporina ludibunda |
| Damping-off, Fusarium | Fusarium spp. |
| Damping-off, Pythium | Pythium ultimum |
| Damping-off, Rhizoctonia | Rhizoctonia solani Thanatephorus cucumeris [teleomorph] |
| Decay (xylem) | Trametes versicolor = Coriolus versicolor Flammulina velutipes Ganoderma applanatum = Fomes applanatus Phellinus spp. = Fomes spp. Pleurotus spp. Polyporus squamosus Other basidiomycetes |
| Discoloration (xylem) | Deuteromycetes |
| Dothiorella canker and wilt | Dothiorella ulmi |
| Dutch elm disease | Ophiostoma ulmi = Ceratocystis ulmi Pesotum ulmi [anamorph] = Graphium ulmi Ophiostoma novo-ulmi |
| Leaf blister | Taphrina ulmi |
| Mistletoe (infection) | Phoradendron serotinum = Phoradendron flavescens Phoradendron tomentosum Viscum album |
| Nectria canker | Nectria spp. Nectria cinnabarina Tubercularia vulgaris [anamorph] Nectria coccinea Cylindrocarpon candidum [anamorph] Nectria ditissima Cylindrocarpon willkommii [anamorph] Nectria galligena Cylindrocarpon heteronemum [anamorph] |
| Phoma canker | Phoma glomerata = Phoma conidiogena |
| Phomopsis canker | Phomopsis oblonga Diaporthe eres [teleomorph] |
| Phymatotrichum root rot (cotton root rot/Texas Root Rot) | Phymatotrichopsis omnivora = Phymatotrichum omnivorum |
| Phytophthora canker (pit canker) | Phytophthora inflata |
| Phytophthora root rot | Phytophthora megasperma |
| Powdery mildew | Microsphaera penicillata = M. alni Phyllactinia angulata = Phyllactinia corylea var. angulata Phyllactinia guttata Oidium sp. [anamorph] Uncinula macrospora Uncinula parvula Uncinuliella flexuosa |
| Schizoxylon canker | Schizoxylon microsporum |
| Sooty mold | Perisporiaceae (Ascomycetes): numerous dark-spored fungi imperfecti |
| Thyrostroma canker | Stigmina compacta = Thyrostroma compactum |
| Tubercularia canker | Tubercularia ulmea |
| Verticillium wilt | Verticillium albo-atrum Verticillium dahlia |
| Violet root rot | Helicobasidium brebissonii Rhizoctonia crocorum [anamorph] |

## Miscellaneous diseases and disorders

Miscellaneous diseases and disorders :
| Discoloration (xylem) | Actinomycetes |

## Nematodes, parasitic

Nematodes, parasitic :
| Lance | Hoploliamus spp. |
| Ring | Criconemella spp. |
| Root-knot | Meloidoglyne spp. |
| Spiral | Helicotylenchus spp. |
| Stunt | Tylenchorhynchus spp. |

## Virus and Phytoplasma diseases

Virus and mycoplasmalike organism [MLO] diseases :
| Elm mosaic | 'Elm mosaic virus' |
| Elm mottle | Elm mottle virus |
| Elm stripe | Viruslike agent |
| Elm witches' broom | Phytoplasma (graft-transmissible) |
| Elm Yellows (phloem necrosis) | Phytoplasma (graft-transmissible) |
| Zonate canker | 'Elm zonate canker virus' (graft-transmissible) |