This article is a
list of diseases of wheatWheat is a worldwide cultivated grass from the Fertile Crescent region of the Near East. In 2007 world production of wheat was 607 million tons, making it the third most-produced cereal after maize and rice...
(
Triticum spp.).
Bacterial diseases
{| class="wikitable" style="clear"
! colspan=2|
Bacterial diseases
|-
|Bacterial leaf blight
||
Pseudomonas syringaePseudomonas syringae is a rod shaped, Gram-negative bacterium with polar flagella. It is a member of the Pseudomonas genus, and based on 16S rRNA analysis, P. syringae has been placed in the P. syringae group...
subsp.
syringae
|-
|Bacterial mosaic
||
Clavibacter michiganensisClavibacter michiganensis is an aerobic non-sporalating Gram-positive plant pathogenic bacterium that currently constitutes the only species within the genus Clavibacter. The other former Clavibacter species have been reclassified to genuses Leifsonia, Rathayibacter and Curtobacterium...
subsp.
tessellarius
|-
|Bacterial sheath rot
||
Pseudomonas fuscovaginaePseudomonas fuscovaginae is a fluorescent, Gram-negative soil bacterium that is pathogenic to rice, causing brown sheath rot. The type strain is CCUG 32780....
|-
|Basal glume rot
||
Pseudomonas syringaePseudomonas syringae is a rod shaped, Gram-negative bacterium with polar flagella. It is a member of the Pseudomonas genus, and based on 16S rRNA analysis, P. syringae has been placed in the P. syringae group...
pv.
atrofaciens
|-
|Black chaff = bacterial streak
||
Xanthomonas campestrisXanthomonas campestris is a bacterial species which causes a variety of plant diseases. Available from the NCPPB,and other international Culture collections such as ICMP, ATCC, and LMG in a purified form, it is used in the commercial production of a high molecular weight polysaccharide, xanthan...
pv.
translucens
|-
|Pink seed
||
Erwinia rhapontici
|-
|Spike blight = gummosis
||
Rathayibacter triticiRathayibacter tritici is a Gram-positive soil bacterium....
=
Clavibacter tritici
Fungal diseases
{| class="wikitable" style="clear"
! colspan=2|
Fungal diseases
|-
|Alternaria leaf blight
||
Alternaria triticinaAlternaria triticina is a plant pathogen that causes leaf blight on wheat. It was first identified in India in 1962 and still causes significant yield loss to wheat crops on the Indian subcontinent. The disease causes necrotic leaf lesions and in severe cases seeds will become shriveled.
...
|-
|Anthracnose
||
Colletotrichum graminicolaGlomerella graminicola is a fungus which causes anthracnose many cereal species including maize and wheat.- Identification :Stromata*70-300 μm in diameter...
Glomerella graminicolaGlomerella graminicola is a fungus which causes anthracnose many cereal species including maize and wheat.- Identification :Stromata*70-300 μm in diameter...
[teleomorph]
|-
|Ascochyta leaf spot
||
Ascochyta triticiAscochyta tritici is a fungal plant pathogen that causes Ascochyta leaf spot on barley, wheat and maize.- External links :* *...
|-
|Aureobasidium decay
||
Microdochium bolleyiMicrodochium bolleyi is a fungal plant pathogen that causes root rot in flax and wheat.- External links :* *...
Aureobasidium bolleyi
|-
|Black head molds = sooty molds
||
AlternariaAlternaria is a genus of ascomycete fungi. Alternaria species are known as major plant pathogens. They are also common allergens in humans, growing indoors and causing hay fever or hypersensitivity reactions that sometimes lead to asthma...
spp.
CladosporiumCladosporium is a genus of fungi including some of the most common indoor and outdoor molds. It produces olive-green to brown or black colonies, and its dark-pigmented conidia are formed in simple or branching chains....
spp.
Epicoccum spp.
Sporobolomyces spp.
Stemphylium spp.
and other genera
|-
|Black point = kernel smudge
||Thought to be associated with funal infection however no clear link found, now thought to be a result of physiological circumstances
|-
|Cephalosporium stripe
||
Hymenula cerealisCephalosporium gramineum or Hymenula cerealis is a plant pathogen that causes Cephalosporium Stripe of Wheat and other grasses. It was first reported in Japan in 1930. The disease can cause yield losses of up to 50% by causing death of tillers and reducing seed production and seed size...
Cephalosporium gramineum
|-
|Common bunt = stinking smut
||
Tilletia triticiTilletia tritici is the causal agent of common bunt of wheat.The tilletia was named after French agronomist Mathieu Tillet .-Use as a biological weapon:...
Tilletia foetida
|-
|
Common root rotCommon root rot is a disease of wheat caused by one or more fungi. Cochliobolus sativus , Fusarium culmorum and F. graminearum are the most common pathogens responsible for common root rot.-Symptoms:...
||
Cochliobolus sativusThe fungus Cochliobolus sativus is the teleomorph of Bipolaris sorokiniana which is the causal agent of a wide variety of cereal diseases. The pathogen can infect and cause disease on the root , leaf and stem, and head tissue...
[teleomorph]
Bipolaris sorokinianaThe fungus Cochliobolus sativus is the teleomorph of Bipolaris sorokiniana which is the causal agent of a wide variety of cereal diseases. The pathogen can infect and cause disease on the root , leaf and stem, and head tissue...
[anamorph]
Helminthosporium sativumThe fungus Cochliobolus sativus is the teleomorph of Bipolaris sorokiniana which is the causal agent of a wide variety of cereal diseases. The pathogen can infect and cause disease on the root , leaf and stem, and head tissue...
|-
|Cottony snow mold
||
Coprinus psychromorbidus
|-
|Crown rot = foot rot, seedling blight, dryland root rot
||
FusariumFusarium is a large genus of filamentous fungi widely distributed in soil and in association with plants. Most species are harmless saprobes and are relatively abundant members of the soil microbial community. Some species produce mycotoxins in cereal crops that can affect human and animal health...
spp.
Fusarium pseudograminearumFusarium pseudograminearum is a fungus that causes crown and root rot of wheat.- External links :*
*...
Gibberella zeaeGibberella zeae, also known by the name of its anamorph Fusarium graminearum, is a plant pathogen which causes the wheat headblight disease. Fusarium head blight is a devastating disease on wheat and barley . The pathogen is responsible for billions of dollars in economic losses worldwide each year...
Fusarium graminearum Group II [anamorph]
Gibberella avenaceaGibberella avenacea is a plant pathogen.- External links :* *...
Fusarium avenaceum [anamorph]
Fusarium culmorumFusarium culmorum is a plant pathogen and the causal agent of seedling blight, foot rot, ear blight, stalk rot, common root rot and other diseases of cereals, grasses, and a wide variety of monocots and dicots.- Identification :Growth on PDA...
|-
|Dilophospora leaf spot = twist
||
Dilophospora alopecuriDilophospora alopecuri is a plant pathogen.- External links :**...
|-
|Downy mildew = crazy top
||
Sclerophthora macrosporaSclerophthora macrospora is a plant pathogen.- External links :*
*
...
|-
|Dwarf bunt
||
Tilletia controversaTilletia controversa is a plant pathogen. It is a fungus known to cause the smut disease TCK smut in soft white and hard red winter wheats. It stunts the growth of the plants and leaves smut balls in the grain heads...
|-
|Ergot
||
Claviceps purpureaClaviceps purpurea is a fungus that grows on the ears of rye and related cereal and forage plants. Consumption of grains or seeds contaminated with the fruiting structure of this fungus, the ergot sclerotium, can cause ergotism in humans and other mammals.. C...
Sphacelia segetum [anamorph]
|-
|Eyespot = foot rot, strawbreaker
||
Tapesia yallundaeTapesia yallundae is the causal agent for a variety of cereal and forage grass diseases. The anamorph o f T. yallundae is the W-type strain of Pseudocercosporella herpotrichoides...
Ramulispora herpotrichoidesTapesia yallundae is the causal agent for a variety of cereal and forage grass diseases. The anamorph o f T. yallundae is the W-type strain of Pseudocercosporella herpotrichoides...
[anamorph]
Pseudocercosporella herpotrichoidesTapesia yallundae is the causal agent for a variety of cereal and forage grass diseases. The anamorph o f T. yallundae is the W-type strain of Pseudocercosporella herpotrichoides...
W-pathotype
Tapesia acuformisTapesia acuformis is the causal agent for a variety of cereal and forage grass diseases. The anamorph of T. acuformis was formerly known as the R-type strain of Pseudocercosporella herpotrichoides. The W-type strain of Pseudocercosporella herpotrichoides is now known as Tapesia yallundae....
Ramulispora acuformisTapesia acuformis is the causal agent for a variety of cereal and forage grass diseases. The anamorph of T. acuformis was formerly known as the R-type strain of Pseudocercosporella herpotrichoides. The W-type strain of Pseudocercosporella herpotrichoides is now known as Tapesia yallundae....
[anamorph]
Pseudocercosporella herpotrichoides var.
acuformisTapesia acuformis is the causal agent for a variety of cereal and forage grass diseases. The anamorph of T. acuformis was formerly known as the R-type strain of Pseudocercosporella herpotrichoides. The W-type strain of Pseudocercosporella herpotrichoides is now known as Tapesia yallundae....
R-pathoytpe
|-
|False eyespot
||
Gibellina cerealisGibellina cerealis is a fungal plant pathogen.- External links :*
*
...
|-
|Flag smut
||
Urocystis agropyriUrocystis agropyri is a fungal plant pathogen.- External links :
...
|-
|Foot rot = dryland foot rot
||
FusariumFusarium is a large genus of filamentous fungi widely distributed in soil and in association with plants. Most species are harmless saprobes and are relatively abundant members of the soil microbial community. Some species produce mycotoxins in cereal crops that can affect human and animal health...
spp.
|-
|Halo spot
||
Pseudoseptoria donacisPseudoseptoria donacis is a plant pathogen.- External links :**...
Selenophoma donacis
|-
|
Karnal bunt = partial buntKarnal bunt is a fungal disease of wheat, durum wheat, and triticale. The smut fungus Tilletia indica invades the kernels and obtains its nutrition from the endosperm, leaving behind waste products with a disagreeable odor that makes bunted kernels too unpalatable for use in flour.-Origin and...
||
Tilletia indica Neovossia indica
|-
|
Leaf rust = brown rustWheat leaf rust, also known as brown rust, is a serious fungal disease affecting wheat and rye caused by the rust fungus Puccinia triticina. It is the most prevalent of all the wheat rust diseases, occurring in nearly all areas where wheat is grown...
||
Puccinia triticina Puccinia recondita f.sp. tritici
Puccinia tritici-duri
|-
|Leptosphaeria leaf spot
||
Phaeosphaeria herpotrichoidesPhaeosphaeria herpotrichoides is a plant pathogen.- External links :* *...
Leptosphaeria herpotrichoides
StagonosporaStagonospora is a genus of fungi. Several of the species in this genus are plant pathogens....
sp. [anamorph]
|-
|Loose smut
||
Ustilago triticiUstilago tritici is a plant pathogen.- External links :* *...
Ustilago segetum var. tritici
Ustilago segetum var. nuda
Ustilago segetum var. avenae
|-
|Microscopica leaf spot
||
Phaeosphaeria microscopicaPhaeosphaeria microscopica is a plant pathogen.- External links :* *...
Leptosphaeria microscopica
|-
|Phoma spot
||
PhomaPhoma is a genus of common coelomycetous soil fungi. It contains many plant pathogenic species. About 200 Phoma taxa have been defined and recognized which may be divided into two large groups: plurivorous fungi, generally saprobic or weakly parasitic, mainly from temperate regions in Eurasia, but...
spp.
Phoma glomerataPhoma glomerata is a plant pathogen.- External links :**...
Phoma sorghina Fusarium nivale
Monographella nivalis [teleomorph]
|-
|Platyspora leaf spot
||
Clathrospora pentamera Platyspora pentamera
|-
|
Powdery mildewPowdery mildew is a fungal disease that affects a wide range of plants. Powdery mildew diseases are caused by many different species of fungi in the order Erysiphales. It is one of the easier diseases to spot, as its symptoms are quite distinctive. Infected plants display white powder-like spots on...
||
Erysiphe graminis f.sp. triticiErysiphe graminis f.sp. tritici is a plant pathogen.-External links:* *...
Blumeria graminisBlumeria graminis is a fungus that causes powdery mildew on grasses, including cereals . It is the only species in the genus Blumeria. It has also been called Erysiphe graminis and Oidium monilioides or Oidium tritici.-Systematics:Previously B...
Erysiphe graminis
Oidium monilioides [anamorph]
|-
|Pythium root rot
||
Pythium aphanidermatumPythium aphanidermatum is a plant pathogen.- External links :**...
Pythium arrhenomanesPythium arrhenomanes is a plant pathogen.- External links :*
*...
Pythium graminicolaPythium graminicola is a plant pathogen.- External links :*
*
...
Pythium myriotylumPythium myriotylum is a plant pathogen.- External links :*
*
...
Pythium volutumPythium volutum is a plant pathogen.- External links :*
*
...
|-
|Rhizoctonia root rot
||
Rhizoctonia solaniRhizoctonia solani is a plant pathogenic fungus with a wide host range and worldwide distribution. It is one cause of the condition known as damping off, which is a cause of death of seedlings in agriculture...
Thanatephorus cucumeris [teleomorph]
|-
|Ring spot = Wirrega blotch
||
Pyrenophora seminiperdaPyrenophora seminiperda is a plant pathogen.- External links :* *...
Drechslera campanulataDrechslera campanulata is a plant pathogen.- External links :**...
Drechslera wirreganensisDrechslera wirreganensis is a plant pathogen.- External links :**...
|-
|Scab = head blight
||
FusariumFusarium is a large genus of filamentous fungi widely distributed in soil and in association with plants. Most species are harmless saprobes and are relatively abundant members of the soil microbial community. Some species produce mycotoxins in cereal crops that can affect human and animal health...
spp.
Gibberella zeaeGibberella zeae, also known by the name of its anamorph Fusarium graminearum, is a plant pathogen which causes the wheat headblight disease. Fusarium head blight is a devastating disease on wheat and barley . The pathogen is responsible for billions of dollars in economic losses worldwide each year...
Fusarium graminearum Group II [anamorph]
Gibberella avenaceaGibberella avenacea is a plant pathogen.- External links :* *...
Fusarium avenaceum [anamorph]
Fusarium culmorumFusarium culmorum is a plant pathogen and the causal agent of seedling blight, foot rot, ear blight, stalk rot, common root rot and other diseases of cereals, grasses, and a wide variety of monocots and dicots.- Identification :Growth on PDA...
Microdochium nivale Fusarium nivale
Monographella nivalis [teleomorph]
|-
|Sclerotinia snow mold = snow scald
||
Myriosclerotinia borealis Sclerotinia borealisSclerotinia borealis is a plant pathogen.- External links :* *...
|-
|Sclerotium wilt (see Southern blight)
||
Sclerotium rolfsiiSclerotium rolfsii is a club fungus that can cause a variety of diseases in plants, including wilt and Southern Blight. It was first described in 1892 by Peter Henry Rolfs in association with tomato blight in Florida.-External links:*
...
Athelia rolfsiiAthelia rolfsii is a plant pathogen.- External links :* *...
[teleomorph]
|-
|Septoria blotch
||
Septoria triticiSeptoria tritici is the causal agent of S. tritici leaf blotch, a foliar disease of wheat, and occasionally infects other grasses including barley...
Mycosphaerella graminicolaMycosphaerella graminicola is a wheat plant pathogen that is difficult to control due to resistance to multiple fungicides.- External links :* *...
[teleomorph]
|-
|Sharp eyespot
||
Rhizoctonia cerealis
Ceratobasidium cerealeCeratobasidium cereale is a plant pathogen.- External links :*
*...
[teleomorph]
|-
|Snow rot
||
PythiumPythium is a genus of parasitic oomycete. Because this group of organisms were once classified as fungi, they are sometimes still treated as such.-Morphology:*Hyphae...
spp.
Pythium aristosporumPythium aristosporum is a plant pathogen.- External links :*
*
...
Pythium iwayamaePythium iwayamae is a plant pathogen.- External links :*
*
...
Pythium okanoganensePythium okanoganense is a plant pathogen.- External links :**...
|-
|Southern blight = Sclerotium base rot
||
Sclerotium rolfsiiSclerotium rolfsii is a club fungus that can cause a variety of diseases in plants, including wilt and Southern Blight. It was first described in 1892 by Peter Henry Rolfs in association with tomato blight in Florida.-External links:*
...
Athelia rolfsiiAthelia rolfsii is a plant pathogen.- External links :* *...
[teleomorph]
|-
|Speckled snow mold = gray snow mold or Typhula blight
||
Typhula idahoensisTyphula idahoensis is a plant pathogen.- External links :
...
Typhula incarnataTyphula incarnata is a plant pathogen.- External links :*
*
...
Typhula ishikariensisTyphula ishikariensis is a plant pathogen.- External links :* *...
Typhula ishikariensis var. canadensisTyphula ishikariensis var. canadensis is a plant pathogen.-External links:**...
|-
|
Spot blotch Spot blotch is a leaf disease of wheat caused by Cochliobolus sativus. Cochliobolus sativus also infects other plant parts and in conjunction with other pathogens causes common root rot and black point.-Introduction:...
||
Cochliobolus sativusThe fungus Cochliobolus sativus is the teleomorph of Bipolaris sorokiniana which is the causal agent of a wide variety of cereal diseases. The pathogen can infect and cause disease on the root , leaf and stem, and head tissue...
[teleomorph]
Bipolaris sorokinianaThe fungus Cochliobolus sativus is the teleomorph of Bipolaris sorokiniana which is the causal agent of a wide variety of cereal diseases. The pathogen can infect and cause disease on the root , leaf and stem, and head tissue...
[anamorph]
Helminthosporium sativumThe fungus Cochliobolus sativus is the teleomorph of Bipolaris sorokiniana which is the causal agent of a wide variety of cereal diseases. The pathogen can infect and cause disease on the root , leaf and stem, and head tissue...
|-
|Stagonospora blotch
||
Phaeosphaeria avenaria f.sp. triticaePhaeosphaeria avenaria f.sp. triticae is a plant pathogen.-External links:* *...
Stagonospora avenae f.sp. triticaeStagonospora avenae f.sp. triticae is a plant pathogen.-External links:**...
[anamorph]
Septoria avenae f.sp. triticea
Phaeosphaeria nodorumPhaeosphaeria nodorum is a plant pathogen.- External links :* *...
Stagonospora nodorum [anamorph]
Puccinia graminis f.sp. tritici (Ug99)
|-
|Storage molds
||
AspergillusAspergillus is a genus of a few hundred molds found throughout much of nature worldwide. Aspergillus was first catalogued in 1729 by the Italian priest and biologist Pier Antonio Micheli. Viewing the fungi under a microscope, Micheli was reminded of the shape of an aspergillum , and named the genus...
spp.
PenicilliumPenicillium is a genus of ascomycetous fungi of major importance in the environment, food and drug production...
spp.
and others
|-
|Stripe rust = yellow rust
||
Puccinia striiformis
Uredo glumarum [anamorph]
|-
|Take-all
||
Gaeumannomyces graminis var. triticiGaeumannomyces graminis var. tritici is a plant pathogen.-External links:* *...
Gaeumannomyces graminis var. avenaeGaeumannomyces graminis var. avenae is a plant pathogen.-External links:*
*...
|-
|Tan spot = yellow leaf spot, red smudge
||
Pyrenophora tritici-repentisPyrenophora tritici-repentis is a plant pathogen of fungal origin, causing a disease called tan spot or helminthosporiosis, that affects mainly wheat in its more common varieties. It forms characteristic, dark, oval-shaped spots of necrotic tissue surrounded by a yellow ring...
Drechslera tritici-repentis [anamorph]
|-
|Tar spot
||
Phyllachora graminis
Linochora graminisLinochora graminis is a fungal plant pathogen.-External links:*
*...
[anamorph]
|-
|Wheat Blast
||
Magnaporthe griseaMagnaporthe grisea, also known as rice blast fungus, rice rotten neck, rice seedling blight, blast of rice, oval leaf spot of graminea, pitting disease, ryegrass blast, and johnson spot, is a plant-pathogenic fungus that causes an important disease affecting rice...
|-
|Zoosporic root rot
||
Lagena radicicola
Ligniera pilorumLigniera pilorum is a plant pathogen.-External links:*
*...
Olpidium brassicaeOlpidium brassicae is a plant pathogen.- External links :*
*...
Rhizophydium graminisRhizophydium graminis is a plant pathogen.- External links :
...
|-
|}
Viral diseases
{| class="wikitable" style="clear"
! colspan=2|
Viral diseases
|-
|African cereal streak
||see Maize streak
|-
|Agropyron mosaic
||genus Rymovirus,
Agropyron mosaic virusAgropyron mosaic virus is a plant pathogenic virus of the family Potyviridae.-External links:**...
(AgMV)
|-
|Australian wheat striate mosaic
||see Chloris striate mosaic
|-
|Barley stripe mosaic
||genus
HordeivirusThe Hordeivirus refers to a genus of a plant virus with currently no assigned family or order. Virus consists of a non-enveloped, helical, rod-shaped capsid...
,
Barley stripe mosaic virusBarley stripe mosaic virus is a plant pathogenic virus that primarily infects barley in Canada.- Symptoms :Mottling with yellowish spots or stripes may occur, along with stunted growth and late maturation....
(BSMV)
|-
|Barley yellow dwarf
||genus
LuteovirusLuteovirus is one of three genera in the luteoviridae family whose primary hosts are plants. The genera also contains the polerovirus and enamovirus. The geographical distribution of luteovirus is widespread, with the virus primarily infecting plants via transmission by aphid vectors. The virus...
, Barley yellow dwarf virus (BYDV)
|-
|Barley yellow streak mosaic
||
Barley yellow streak mosaic virusBarley yellow streak mosaic virus is a plant pathogenic virus.-External links:**...
|-
|Barley yellow striate mosaic
||genus Cytorhabdovirus,
Barley yellow striate mosaic virusBarley yellow striate mosaic virus is a plant pathogenic virus of the family Rhabdoviridae.-External links:**...
(BYSMV)
|-
|Barley yellow stripe
||see Barley stripe mosaic
|-
|
Brome mosaicBrome mosaic virus is a small , positive-stranded, icosahedral RNA plant virus belonging to the family Bromoviridae of the alphavirus-like superfamily....
||genus Bromovirus,
Brome mosaic virus (BMV)Brome mosaic virus is a small , positive-stranded, icosahedral RNA plant virus belonging to the family Bromoviridae of the alphavirus-like superfamily....
|-
|Cereal northern mosaic
||genus Cytorhabdovirus,
Cereal northern mosaic virusCereal northern mosaic virus is a plant pathogenic virus of the family Rhabdoviridae.-External links:**...
(NCMV)
|-
|Cereal tillering
||Cereal tillering virus
|-
|Chloris striate mosaic
||genus Monogeminivirus,
Chloris striate mosaic virusChloris striate mosaic virus is a plant pathogenic virus of the family Geminiviridae.-External links:**...
(CSMV)
|-
|Cocksfoot mottle
||genus
SobemovirusThe Sobemovirus is a genus of a virus with no family. Virion capsids are non-enveloped, round and isometric, with a diameter of 25-33 nm. The genome is a single piece of linear, positive-sense, single-stranded RNA, 4100-5700 nucleotides in length...
,
Cocksfoot mottle virusCocksfoot mottle virus is a plant pathogenic virus.-External links:**...
(CoMV)
|-
|Eastern wheat striate
||Eastern wheat striate virus
|-
|Enanismo
||Probable virus or phytoplasma
|-
|High plains disease
||Probable virus. Vectored by wheat curl mite,
Aceria tosichella
|-
|Maize streak
||genus Monogeminivirus,
Maize streak virusMaize streak virus is an insect-transmitted maize pathogen of the family Geminiviridae that is endemic in sub-Saharan Africa. It is transmitted by an African leafhopper, Cicadulina mbila Naudé, and can sporadically cause epiphytotics that in certain years can destroy 100% of a farmer's maize crop...
(MSV)
|-
|Northern cereal mosaic
||genus Cytorhabdovirus,
Cereal northern mosaic virusCereal northern mosaic virus is a plant pathogenic virus of the family Rhabdoviridae.-External links:**...
(NCMV)
|-
|Oat sterile dwarf
||genus
FijivirusThe genus Fijivirus is a member of the Reoviridae virus family. These have double-stranded RNA genomes and are therefore group III viruses. These viruses infect plants - unusual for reoviruses - and can also replicate in their arthropod intermediate hosts....
,
Oat sterile dwarf virusOat sterile dwarf virus is a plant pathogenic virus of the family Reoviridae.-External links:**...
(OSDV)
|-
|Rice black-streaked dwarf
||genus
FijivirusThe genus Fijivirus is a member of the Reoviridae virus family. These have double-stranded RNA genomes and are therefore group III viruses. These viruses infect plants - unusual for reoviruses - and can also replicate in their arthropod intermediate hosts....
,
Rice black-streaked dwarf virusRice black-streaked dwarf virus is a plant pathogenic virus of the family Reoviridae.-External links:**...
(RBSDV)
|-
|Rice hoja blanca
||genus
Tenuivirus{Taxobox| virus_group = VTenuivirus a name of genera of plant viruses. The type member is "Rice Stripe Virus." Other members of this genera include "Maize Stripe Virus," "Rice Hoja Blanca Virus'," and "Iranian Wheat Strip Virus." These plant viruses cause diseases in their host plants. Typical...
,
Rice hoja blanca virusRice hoja blanca virus is the agent of the most important viral disease of rice in Latin America. The disease is found in Mexico, throughout Central America and the Caribbean region...
(RHBV)
|-
|Russian winter wheat mosaic
||genus Cytorhabdovirus, Russian winter wheat mosaic virus (WWRMV)
|-
|Seedborne wheat yellows
||Seedborne wheat yellows viroid
|-
|
Tobacco mosaicTobacco mosaic virus is an RNA virus that infects plants, especially tobacco and other members of the family Solanaceae. The infection causes characteristic patterns on the leaves . TMV was the first virus to be discovered...
||genus
TobamovirusThe genus Tobamovirus contains viruses with a positive sense RNA genome that infect plants. The most common tobamovirus is probably tobacco mosaic virus, which infects tobacco and other plants including potatoes, tomatoes, and squashes. The name Tobamovirus comes from the host and symptoms: Toba...
,
Tobacco mosaic virus (TMV)Tobacco mosaic virus is an RNA virus that infects plants, especially tobacco and other members of the family Solanaceae. The infection causes characteristic patterns on the leaves . TMV was the first virus to be discovered...
|-
|Wheat American striate mosaic
||genus Nucleorhabdovirus, Wheat American striate mosaic virus (WASMV)
|-
|Wheat chlorotic streak = Wheat chlorotic streak mosaic
||see Barley yellow striate mosaic
|-
|Wheat dwarf
||genus Monogeminivirus,
Wheat dwarf virusWheat dwarf virus is a plant pathogenic virus of the family Geminiviridae..-External links:**...
(WDV)
|-
|Wheat European striate mosaic
||genus
Tenuivirus{Taxobox| virus_group = VTenuivirus a name of genera of plant viruses. The type member is "Rice Stripe Virus." Other members of this genera include "Maize Stripe Virus," "Rice Hoja Blanca Virus'," and "Iranian Wheat Strip Virus." These plant viruses cause diseases in their host plants. Typical...
, Wheat European striate mosaic virus (EWSMV)
|-
|Wheat rosette stunt
||see Cereal northern mosaic
|-
|Wheat soilborne mosaic
||genus
FurovirusThe Furovirus genus consists of rod shaped viruses enclosing bipartite , single-stranded, positive-sense RNA genomes. The type species of the genus is the soil borne wheat mosaic virus or SBWMV. These viruses infect plants of the grass family as well as fungi, infecting fungal vectors of the...
,
Wheat soil-borne mosaic virusSoil-borne wheat mosaic virus is a plant pathogenic virus vectored by plasmodiophorid Polymyxa graminis.-External links:**...
(SBWMV)
|-
|Wheat soilborne yellow mosaic
||Wheat soil-borne yellow mosaic virus
|-
|Wheat spindle streak mosaic
||a strain of
Wheat yellow mosaic virusWheat yellow mosaic virus is a plant pathogenic virus of the family Potyviridae.-External links:**...
|-
|Wheat spot mosaic
||Probable virus or phytoplasma
|-
|Wheat streak mosaic
||genus Rymovirus,
Wheat streak mosaic virusWheat streak mosaic virus is a plant pathogenic virus of the family Potyviridae.-External links:**...
(WSMV)
|-
|Wheat striate mosaic
||see Wheat American striate mosaic
|-
|Wheat yellow leaf
||genus
ClosterovirusClosterovirus, also known as beet yellows viral group, is a plant-infecting viral genus included in family Closteroviridae. This genus has a probably worldwide distribution and includes among other viral species the Beet yellows virus and the tentatively assigned Citrus tristeza virus, rather...
,
Wheat yellow leaf virusWheat yellow leaf virus is a wheat , barley , rye , and oat pathogenic virus of the family Closteroviridae. WYLV virions are 1600-1850 nm in length and 10 nm in diameter. The virus, like other members of its genus, is transmitted by aphids...
(WYLV)
|-
|Wheat yellow mosaic
||
Wheat yellow mosaic virusWheat yellow mosaic virus is a plant pathogenic virus of the family Potyviridae.-External links:**...
=
Wheat spindle streak mosaic virusWheat spindle streak mosaic virus is a plant pathogenic virus of the family Potyviridae.-External links:**...
|-
|}
Phytoplasmal diseases
{| class="wikitable" style="clear"
! colspan=2|
Phytoplasmal diseases
|-
|Aster yellows
||Aster yellows phytoplasma
|-
|}