This article is a list of diseases of rapeseed and canola (Brassica napus and B. rapa or B. campestris).
Bacterial diseases
Bacterial diseasesBacterial black rotXanthomonas campestris pv. campestris Xanthomonas campestris pv. aberrans Bacterial leaf spotXanthomonas campestris pv. raphaniBacterial pod rotPseudomonas syringae pv. maculicola Bacterial soft rotErwinia carotovora Pseudomonas marginalis pv. marginalisScabStreptomyces spp. Streptomyces scabiei = Streptomyces scabiesCrown gallAgrobacterium tumefaciens
Fungal diseases
Fungal diseasesAlternaria black spot = dark pod spot (UK) Alternaria brassicae Alternaria brassicicola Alternaria japonica Alternaria raphaniAnthracnoseColletotrichum gloeosporioides Glomerella cingulata [teleomorph] Colletotrichum higginsianumBlack leg = stem canker (UK)Leptosphaeria maculans Phoma lingam [anamorph] Black mold rotRhizopus stoloniferBlack rootAphanomyces raphaniBrown girdling root rotRhizoctonia solani Thanatephorus cucumeris [teleomorph]Cercospora leaf spotCercospora brassicicolaClubrootPlasmodiophora brassicaeDowny mildewPeronospora parasiticaFusarium wiltFusarium oxysporum f.sp. conglutinansGray moldBotrytis cinerea Botryotinia fuckeliana [teleomorph]Head rotRhizoctonia solani Thanatephorus cucumeris [teleomorph]Leaf spotAlternaria alternata Ascochyta spp. Light leaf spotPyrenopeziza brassicae Cylindrosporium concentricum [anamorph]Pod rotAlternaria alternata Cladosporium spp.Powdery mildewErysiphe radulescuiRing 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 sclerotiorumSeed rot, damping-off Alternaria spp. Fusarium spp. Gliocladium roseum Nectria ochroleuca [teleomorph] Pythium spp. Rhizoctonia solani Thanatephorus cucumeris [teleomorph] Rhizopus stolonifer Sclerotium rolfsiiRoot gall smutUrocystis brassicaeSouthern blight (leaf, root, and seed rot) Sclerotium rolfsii Verticillium wiltVerticillium longisporumWhite blightRhizoctonia 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 diseasesCrinklegenus 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 diseasesAster yellows and phyllody Aster yellows phytoplasma
Miscellaneous diseases and disorders
Miscellaneous diseases and disordersAutogenic necrosis Genetic disorder Black speck Physiological Sulfur deficiency Sulfur deficiency Tipburn Calcium deficiency
References Common Names of Diseases, The American Phytopathological Society