This article is a list of diseases of rapeseed and canola (Brassica napus and B. rapa or B. campestris).
Pyrenopeziza brassicae Cylindrosporium concentricum [anamorph] Alternaria alternata Cladosporium spp.
Macrophomina phaseolina Phymatotrichopsis omnivora Phytophthora megasperma Pythium debaryanum Pythium irregulare Rhizoctonia solani Thanatephorus cucumeris [teleomorph] Sclerotium rolfsii Athelia rolfsii [teleomorph] Alternaria spp.
Gliocladium roseum Nectria ochroleuca [teleomorph] Pythium spp.
Rhizoctonia solani Thanatephorus cucumeris [teleomorph] Rhizopus stolonifer Sclerotium rolfsii Rhizoctonia solani Thanatephorus cucumeris [teleomorph] Pseudocercosporella capsellae = Cercosporella brassicae Mycosphaerella capsellae [teleomorph] Albugo candida = Albugo cruciferarum (Peronospora sp.