This article is a list of diseases of wheat (Triticum spp.) grouped by causative agent.
Bacterial diseases
Bacterial diseasesBacterial leaf blight Pseudomonas syringae ssp. syringaeBacterial mosaic Clavibacter michiganensis subsp. tessellariusBacterial sheath rot Pseudomonas fuscovaginae Basal glume rot Pseudomonas syringae pv. atrofaciensBlack chaff = bacterial leaf streak Xanthomonas translucens pv. translucensPink seed Erwinia rhaponticiSpike blight = gummosis Rathayibacter tritici Clavibacter tritici Corynebacterium michiganense pv. tritici Cl. iranicus
Fungal diseases
Fungal diseasesAlternaria leaf blight Alternaria triticinaAnthracnose Glomerella graminicola (anamorph Colletotrichum graminicola)Ascochyta leaf spot Ascochyta triticiAureobasidium decay Microdochium bolleyi Aureobasidium bolleyiBlack head molds = sooty molds Alternaria spp. Cladosporium spp. Epicoccum spp. Sporobolomyces spp. Stemphylium spp. and other generaBlack point = kernel smudgeassociated with fungal infection, primarily: Alternaria spp. Cochliobolus sativus Cladosporium spp. Cephalosporium stripe Hymenula cerealis Cephalosporium gramineumCommon bunt = stinking smut Tilletia tritici Tilletia caries Tilletia laevis Tilletia foetidaCommon root rot Cochliobolus sativus [teleomorph] Bipolaris sorokiniana [anamorph] syn. Helminthosporium sativumCottony snow mold Coprinus psychromorbiduscrown rot of wheatCrown rot = foot rot, seedling blight, dryland root rot Fusarium spp. Fusarium pseudograminearum Gibberella zeae Fusarium graminearum Group II [anamorph] Gibberella avenacea Fusarium avenaceum [anamorph] Fusarium culmorumDilophospora leaf spot = twist Dilophospora alopecuriDowny mildew = crazy top Sclerophthora macrosporaDwarf bunt Tilletia controversaErgot Claviceps purpurea Sphacelia segetum [anamorph]Eyespot = foot rot, strawbreaker Tapesia yallundae Ramulispora herpotrichoides [anamorph] Pseudocercosporella herpotrichoides W-pathotype Tapesia acuformis Ramulispora acuformis [anamorph] Pseudocercosporella herpotrichoides var. acuformis R-pathoytpeFalse eyespot Gibellina cerealisFlag smut Urocystis agropyriFoot rot = dryland foot rot Fusarium spp. Halo spot Pseudoseptoria donacis Selenophoma donacisKarnal bunt = partial bunt Tilletia indica syn. Neovossia indicaLeaf rust = brown rust Puccinia triticina syn. Puccinia recondita f.sp. tritici Puccinia tritici-duriLeptosphaeria leaf spot Phaeosphaeria herpotrichoides Leptosphaeria herpotrichoides Stagonospora sp. [anamorph] Loose smut Ustilago tritici Ustilago segetum var. tritici Ustilago segetum var. nuda Ustilago segetum var. avenaeMicroscopica leaf spot Phaeosphaeria microscopica syn. Leptosphaeria microscopicaPhoma spot Phoma spp. Phoma glomerata Phoma sorghina Phoma insidiosaPink snow mold = Fusarium patch Microdochium nivale Fusarium nivale Monographella nivalis [teleomorph]Platyspora leaf spot Clathrospora pentamera Platyspora pentameraPowdery mildew Blumeria graminisPythium root rot Pythium aphanidermatum Pythium arrhenomanes Pythium graminicola Pythium myriotylum Pythium volutumRhizoctonia root rot Rhizoctonia solani Thanatephorus cucumeris [teleomorph] Ring spot = Wirrega blotch Pyrenophora seminiperda Drechslera campanulata Drechslera wirreganensisScab = head blight = Fusarium head blight (FHB) Fusarium spp. Gibberella zeae Fusarium graminearum Group II [anamorph] Gibberella avenacea Fusarium avenaceum [anamorph] Fusarium culmorum Microdochium nivale Fusarium nivale Monographella nivalis [teleomorph]Sclerotinia snow mold = snow scald Myriosclerotinia borealis Sclerotinia borealisSclerotium wilt (see Southern blight) Sclerotium rolfsii Athelia rolfsii [teleomorph]Septoria blotch Septoria tritici Mycosphaerella graminicola [teleomorph]Sharp eyespot Rhizoctonia cerealis Ceratobasidium cereale [teleomorph]Snow rot Pythium spp. Pythium aristosporum Pythium iwayamae Pythium okanoganenseSouthern blight = Sclerotium base rot Sclerotium rolfsii Athelia rolfsii [teleomorph]Speckled snow mold = gray snow mold or Typhula blight Typhula idahoensis Typhula incarnata Typhula ishikariensis Typhula ishikariensis var. canadensisSpot blotch Cochliobolus sativus [teleomorph] Bipolaris sorokiniana [anamorph] Helminthosporium sativumStagonospora blotch Phaeosphaeria avenaria f.sp. triticae Stagonospora avenae f.sp. triticae [anamorph] Septoria avenae f.sp. triticea Phaeosphaeria nodorum Stagonospora nodorum [anamorph] Septoria nodorumStem rust = black rust Puccinia graminis Puccinia graminis f.sp. tritici (Ug99)Storage molds Aspergillus spp. Penicillium spp. and othersStripe rust = yellow rust Puccinia striiformis Uredo glumarum [anamorph]Take-all Gaeumannomyces graminis var. tritici Gaeumannomyces graminis var. avenaeTan spot = yellow leaf spot, red smudge Pyrenophora tritici-repentis Drechslera tritici-repentis [anamorph]Tar spot Phyllachora graminis Linochora graminis [anamorph]Wheat Blast Magnaporthe griseaZoosporic root rot Lagena radicicola Ligniera pilorum Olpidium brassicae Rhizophydium graminis
Viral diseases
Viral diseasesAfrican cereal streaksee Maize streakAgropyron mosaicgenus Rymovirus, Agropyron mosaic virus (AgMV)Australian wheat striate mosaicsee Chloris striate mosaicBarley stripe mosaicgenus Hordeivirus, Barley stripe mosaic virus (BSMV)Barley yellow dwarfgenus Luteovirus, Barley yellow dwarf virus (BYDV)Barley yellow streak mosaic Barley yellow streak mosaic virus Barley yellow striate mosaic genus Cytorhabdovirus, Barley yellow striate mosaic virus (BYSMV) Barley yellow stripe see Barley stripe mosaic Brome mosaic genus Bromovirus, Brome mosaic virus (BMV) Cereal northern mosaic genus Cytorhabdovirus, Cereal northern mosaic virus (NCMV) Cereal tillering Cereal tillering virus Chloris striate mosaic genus Monogeminivirus, Chloris striate mosaic virus (CSMV) Cocksfoot mottle genus Sobemovirus, Cocksfoot mottle virus (CoMV) Eastern wheat striate Eastern wheat striate virus Enanismo Probable virus or phytoplasma High plains disease Probable virus. Vectored by wheat curl mite, Aceria tosichellaMaize streak genus Monogeminivirus, Maize streak virus (MSV) Northern cereal mosaic genus Cytorhabdovirus, Cereal northern mosaic virus (NCMV) Oat sterile dwarf genus Fijivirus, Oat sterile dwarf virus (OSDV) Rice black-streaked dwarf genus Fijivirus, Rice black-streaked dwarf virus (RBSDV) Rice hoja blanca genus Tenuivirus, Rice hoja blanca virus (RHBV) Russian winter wheat mosaic genus Cytorhabdovirus, Russian winter wheat mosaic virus (WWRMV) Seedborne wheat yellows Seedborne wheat yellows viroid Tobacco mosaicgenus Tobamovirus, Tobacco mosaic virus (TMV)Wheat American striate mosaic genus Nucleorhabdovirus, Wheat American striate mosaic virus (WASMV) Wheat chlorotic streak = Wheat chlorotic streak mosaicsee Barley yellow striate mosaic Wheat dwarf genus Monogeminivirus, Wheat dwarf virus (WDV) Wheat European striate mosaic genus Tenuivirus, Wheat European striate mosaic virus (EWSMV) genus Emaravirus, Wheat mosaic virus (WMoV) Wheat rosette stunt see Cereal northern mosaic Wheat soilborne mosaic genus Furovirus, Wheat soil-borne mosaic virus (SBWMV) Wheat soilborne yellow mosaic Wheat soil-borne yellow mosaic virus Wheat spindle streak mosaic a strain of Wheat yellow mosaic virusWheat spot mosaic Probable virus or phytoplasma Wheat streak mosaic genus Tritimovirus, Wheat streak mosaic virus (WSMV) Wheat striate mosaic see Wheat American striate mosaic Wheat yellow leaf genus Closterovirus, Wheat yellow leaf virus (WYLV) Wheat yellow mosaic Wheat yellow mosaic virus = Wheat spindle streak mosaic virus
Phytoplasmal diseases
Phytoplasmal diseasesAster yellows Aster yellows phytoplasma
Nematodes, parasitic
Nematodes, parasiticCereal cyst nematode Heterodera avenae Grass cyst nematode Punctodera punctata Root gall nematodeSubanguina spp.Root-knot nematode Meloidogyne spp. Meloidogyne naasi Meloidogyne chitwoodi Seed gall = ear-cockle nematode = wheat gall nematodeAnguina tritici
References
Common Names of Diseases, The American Phytopathological Society
Further reading
, earlier but more detail