This article is a list of diseases of beets (Beta vulgaris), a plant grown for its edible taproot and leaves.
Bacterial diseases
Bacterial diseasesBacterial blight Pseudomonas syringae pv. aptataBacterial pocket Xanthomonas beticolaBacterial soft rotErwinia carotovora subsp. carotovoraBacterial vascular necrosis and rot Erwinia carotovora subsp. betavasculorumCrown gall Agrobacterium tumefaciensSilvering diseaseCurtobacterium flaccumfaciens pv. betae = Corynebacterium betae
Fungal diseases
Fungal diseasesAlternaria leaf spot Alternaria alternata Alternaria brassicae AnthracnoseColletotrichum dematiumAphanomyces root rot (black root) Aphanomyces cochlioidesBlack wood vesselPythium irregulareCercospora leaf spot Cercospora beticolaCharcoal rot Macrophomina phaseolinaChoanephora rotChoanephora cucurbitarumDamping-off, black leg, black root and seedling blight Aphanomyces cochlioides Cylindrocladium spp. Fusarium spp. Phoma betae Pleospora betae [teleomorph] Pythium spp. Rhizoctonia solani Thanatephorus cucumeris [teleomorph] Downy mildew Peronospora farinosa Peronospora farinosa f.sp. betae Peronospora schachtiiFusarium yellows Fusarium oxysporumFusarium yellows and root rot Fusarium oxysporum f.sp. betae (Texas isolates) Leaf gall (beet tumor, or crown wart) Physoderma leproides Urophlyctis leproidesPhoma leaf spot and root rot Phoma betaePhymatotrichum root rot (cotton root rot) Phymatotrichopsis omnivora Phymatotrichum omnivorumPhytophthora wet rot Phytophthora drechsleriPowdery mildew Erysiphe polygoni Erysiphe betaePythium root rot Pythium aphanidermatum Pythium delienseRamularia leaf spot Ramularia beticolaRhizoctonia foliar blight, crown and root rot Rhizoctonia solaniRhizopus root rot Rhizopus arrhizus Rhizopus stoloniferRust Uromyces betaeSclerotinia crown & root rot Sclerotinia sclerotiorumSeedling rust Puccinia subnitensSlime moldsPhysarum cinereumSouthern blight (Sclerotium root rot and stem rot) Sclerotium rolfsii Athelia rolfsii [teleomorph] Stemphylium leaf spotStemphylium botryosum Pleospora tarda [teleomorph] Storage rots Botrytis cinerea Botryotinia fuckeliana [teleomorph] Penicillium spp. Phoma betaeVerticillium wilt Verticillium albo-atrumViolet root rot Helicobasidium brebissonii Rhizoctonia crocorum [anamorph]
Nematodes, parasitic
Nematodes, parasiticBeet cyst nematode Heterodera schachtiiClover cyst nematode Heterodera trifoliiFalse root-knot nematode Nacobbus aberransLesion nematodes Pratylenchus spp. Needle nematodes Longidorus spp. Potato rot nematode Ditylenchus destructorRoot-knot Meloidogyne spp. Stem and bulb nematode Ditylenchus dipsaciStubby-root nematodes Paratrichodorus spp. Trichodorus spp.
Viral diseases
Viral diseasesAlfalfa mosaic genus Alfamovirus, Alfalfa mosaic virus (AMV) Beet curly top genus Hybrigeminivirus, Beet curly top virus (BCTV) Beet distortion mosaic genus ?, Beet distortion mosaic virus Beet leaf curlgenus Rhabdovirus, Beet leaf curl virus (BCLV) Beet mild yellows & Beet western yellows genus Luteovirus, Beet western yellows virus (BMY) Beet mosaic genus Potyvirus, Beet mosaic virus (BtMV) Beet yellow net genus Luteovirus, Beet yellow net virus (BYNV) Beet yellows genus Closterovirus, Beet yellows virus (BYV) Cucumber mosaic genus Cucumovirus, Cucumber mosaic virus (CMV) Lettuce infectious yellows genus Closterovirus, Lettuce infectious yellows virus (LIYV) Rhizomania genus Benyvirus, Beet necrotic yellow vein virus (BNYVV) (fungal vector: Polymyxa betae) Beet savoy Suspected virus Beet yellow vein Suspected virus
Phytoplasmal and sprioplasmal diseases
Phytoplasmal and sprioplasmal diseasesBeet latent rosette Phytoplasma Yellow wiltSpiroplasma
Miscellaneous diseases and disorders
Miscellaneous diseases and disordersHeart rot Boron deficiency Scab Streptomyces spp.
References Common Names of Diseases, The American Phytopathological Society Beet Diseases (Fact Sheets and Information Bulletins), The Cornell Plant Pathology Vegetable Disease Web Page