This article is a list of diseases of the cultivated oat Avena sativa.
Bacterial diseases
| Bacterial diseases | |
|---|---|
| Bacterial blight (halo blight) | Pseudomonas coronafaciens pv. coronafaciens |
| Bacterial stripe blight | Pseudomonas coronafaciens pv. striafaciens |
| Black chaff and bacterial streak (stripe) | Xanthomonas campestris pv. translucens |
Fungal diseases
| Fungal diseases | |
|---|---|
| Anthracnose |
Colletotrichum graminicola
|
| Blast |
Unfavorable environmental conditions and/or any of several pathogens |
| Downy mildew | |
| Ergot |
|
| Fusarium foot rot | |
| Head blight |
Bipolaris sorokiniana
Drechslera avenacea
Other Fusarium spp. |
| Leaf blotch and crown rot (Helminthosporium leaf blotch) |
|
| Powdery mildew |
Erysiphe graminis f. sp. avenae
|
| Red leather disease |
Spermospora avenae [anamorph] |
| Rhizoctonia root rot |
|
| Root rot |
Fusarium spp. |
| Rust, crown | |
| Rust, stem | |
| Seedling blight |
Bipolaris sorokiniana |
| Sharp eyespot |
|
| Smut, covered |
|
| Smut, loose | Ustilago avenae |
| Snow mold, pink (Fusarium patch) |
|
| Snow mold, speckled or gray (Typhula blight) | |
| Speckled blotch (Septoria blight) |
|
| Take-all (white head) |
Gaeumannomyces graminis var. avenae |
| Victoria blight |
Bipolaris victoriae |
Miscellaneous diseases or disorders
| Miscellaneous diseases or disorders | |
|---|---|
| Blast | Unfavorable environmental conditions and/or any of several pathogens |
| Gray streak | Manganese deficiency |
| Physiological leaf spot | Genetic predisposition |
Nematodes
| Nematodes, parasitic | |
|---|---|
| Bulb and stem | |
| Cyst, oat or cereal | |
| Cyst |
Heterodera hordecalis |
| Dagger, American | |
| Lesion | |
| Pin |
Pratylenchus spp. |
| Ring |
Criconemella spp. |
| Root-knot | |
| Sheath |
Hemicycliophora spp. |
| Spiral |
Helicotylenchus spp. |
| Sting | |
| Stubby-root | |
| Stunt |
Quinisulcius capitatus |
Viruses
| Viruses | |
|---|---|
| Oat blue dwarf | Oat blue dwarf virus |
| Oat mosaic | Oat mosaic virus |
| Oat necrotic mottle | Oat necrotic mottle virus |
| Oat red leaf | Barley yellow dwarf virus |