This article is a list of diseases of crucifers (Brassica and Raphanus spp.).
Bacterial diseases
Bacterial diseasesBacterial leaf spot Pseudomonas syringae pv. maculicolaBacterial soft rot Erwinia Erwinia carotovoraBacterial soft rot Pseudomonas Pseudomonas marginalis pv. marginalisBlack rot Xanthomonas campestris pv. campestrisCrown gall Agrobacterium tumefaciensXanthomonas leaf spot Xanthomonas campestris pv. raphani
Fungal diseases
Fungal diseasesAlternaria diseases: black spot (leaf, stem, or pod spots) Alternaria spp. Alternaria brassicae Alternaria brassicicola Alternaria raphani AnthracnoseColletotrichum higginsianum Black leg and Phoma root rotLeptosphaeria maculans Phoma lingam [anamorph] Black mold rotRhizopus stolonifer Black root (Aphanomyces) Aphanomyces raphani Bottom rot, damping-off, headrot, seedling root rot, wire stem, and basal stem rot Ganoderma orbiforme Rhizoctonia solani Thanatephorus cucumeris [teleomorph] Cercospora leaf spotCercospora brassicicola ClubrootPlasmodiophora brassicae Damping-offFusarium spp. Pythium spp. Downy mildew, stagheadPeronospora parasitica Gray moldBotrytis cinerea Botryotinia fuckeliana [teleomorph] Light leaf spot Pyrenopeziza brassicae Phymatotrichum root rot (cotton root rot) Phymatotrichopsis omnivora Phymatotrichum omnivorum Phytophthora root rotPhytophthora megasperma Powdery mildewErysiphe polygoni Ring spotMycosphaerella brassicicola Asteromella brassicae [anamorph]Sclerotinia stem rot and watery soft rot Sclerotinia sclerotiorum Southern blightSclerotium rolfsii Athelia rolfsii [teleomorph] Verticillium wiltVerticillium albo-atrum Verticillium dahliae White leaf spot and gray stemPseudocercosporella capsellae White rust and stagheadAlbugo candida (Peronospora sp. commonly present in staghead phase) Yellows Fusarium oxysporum
Miscellaneous diseases and disorders
Miscellaneous diseases and disordersAutogenic necrosis Genetic disorder Black speck Physiological Brown girdling root rot Unidentified Scab Streptomyces S. scabies
Nematodes, parasitic
Nematodes, parasiticAwl Dolichodorus spp. Cyst Heterodera schachtii Heterodera cruciferaeLesion Pratylenchus pratensisPin Paratylenchus spp. Root-knot Meloidogyne spp. Sting Belonolaimus spp.
Viral diseases
Viral diseasesCauliflower mosaic Cauliflower mosaic virus Radish mosaic Radish mosaic virus Turnip mosaic Turnip yellow mosaic virus Yellows Beet western yellows virus
References Common Names of Diseases, The American Phytopathological Society Crucifer Diseases (Fact Sheets and Information Bulletins), The Cornell Plant Pathology Vegetable Disease Web Page