title: List of canola diseases
text: # 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 |
  