# List of canola diseases

This article is a list of diseases of rapeseed and canola (Brassica napus and B. rapa or B. campestris).

## Bacterial diseases

Bacterial diseases :
| Bacterial black rot | Xanthomonas campestris pv. campestris = Xanthomonas campestris pv. aberrans |
| Bacterial leaf spot | Xanthomonas campestris pv. raphani |
| Bacterial pod rot | Pseudomonas syringae pv. maculicola |
| Bacterial soft rot | Erwinia carotovora Pseudomonas marginalis pv. marginalis |
| Scab | Streptomyces spp. Streptomyces scabiei = Streptomyces scabies |
| Crown gall | Agrobacterium tumefaciens |

## Fungal diseases

Fungal diseases :
| Alternaria black spot = dark pod spot (UK) | Alternaria brassicae Alternaria brassicicola Alternaria japonica = Alternaria raphani |
| Anthracnose | Colletotrichum gloeosporioides Glomerella cingulata [teleomorph] Colletotrichum higginsianum |
| Black leg = stem canker (UK) | Leptosphaeria maculans Phoma lingam [anamorph] |
| Black mold rot | Rhizopus stolonifer |
| Black root | Aphanomyces raphani |
| Brown girdling root rot | Rhizoctonia solani Thanatephorus cucumeris [teleomorph] |
| Cercospora leaf spot | Cercospora brassicicola |
| Clubroot | Plasmodiophora brassicae |
| Downy mildew | Peronospora parasitica |
| Fusarium wilt | Fusarium oxysporum f.sp. conglutinans |
| Gray mold | Botrytis cinerea Botryotinia fuckeliana [teleomorph] |
| Head rot | Rhizoctonia solani Thanatephorus cucumeris [teleomorph] |
| Leaf spot | Alternaria alternata Ascochyta spp. |
| Light leaf spot | Pyrenopeziza brassicae Cylindrosporium concentricum [anamorph] |
| Pod rot | Alternaria alternata Cladosporium spp. |
| Powdery mildew | Erysiphe polygoni Erysiphe cruciferarum |
| Ring spot | Mycosphaerella brassicicola Asteromella brassicae [anamorph] |
| Root rot | Alternaria alternata Fusarium spp. Macrophomina phaseolina Phymatotrichopsis omnivora Phytophthora megasperma Pythium debaryanum Pythium irregulare Rhizoctonia solani Thanatephorus cucumeris [teleomorph] Sclerotium rolfsii Athelia rolfsii [teleomorph] |
| Sclerotinia stem rot | Sclerotinia sclerotiorum |
| Seed rot, damping-off | Alternaria spp. Fusarium spp. Gliocladium roseum Nectria ochroleuca [teleomorph] Pythium spp. Rhizoctonia solani Thanatephorus cucumeris [teleomorph] Rhizopus stolonifer Sclerotium rolfsii |
| Root gall smut | Urocystis brassicae |
| Southern blight (leaf, root, and seed rot) | Sclerotium rolfsii |
| Verticillium wilt | Verticillium longisporum |
| White blight | Rhizoctonia solani Thanatephorus cucumeris [teleomorph] |
| White leaf spot = grey stem (Canada) | Pseudocercosporella capsellae = Cercosporella brassicae Mycosphaerella capsellae [teleomorph] |
| White rust = staghead | Albugo candida = Albugo cruciferarum (Peronospora sp. commonly present in staghead phase) |
| Yellows | Fusarium oxysporum |

## Viral diseases

Viral diseases :
| Crinkle | genus Carmovirus, turnip crinkle virus (TCV) |
| Mosaic | genus Caulimovirus, cauliflower mosaic virus(CaMV) genus Cucumovirus, cucumber mosaic virus (CMV) genus Comovirus, radish mosaic virus (RaMV) genus Potyvirus, turnip yellow mosaic virus (TuMV) |
| Yellows | genus Luteovirus, beet western yellows virus (BWYV) genus Cytorhabdovirus, broccoli necrotic yellows virus (BNYV) |

## Phytoplasmal diseases

Phytoplasmal diseases :
| Aster yellows and phyllody | Aster yellows phytoplasma |

## Miscellaneous diseases and disorders

Miscellaneous diseases and disorders :
| Autogenic necrosis | Genetic disorder |
| Black speck | Physiological |
| Sulfur deficiency | Sulfur deficiency |
| Tipburn | Calcium deficiency |