This article is a list of diseases of dahlia (Dahlia sp.).
Bacterial diseases
Bacterial diseasesBacterial wilt Pseudomonas solanacearumCrown gall Agrobacterium tumefaciens
Fungal diseases
Fungal diseasesFlower blight Botrytis cinereaLeaf spot Alternaria alternataPowdery mildew Golovinomyces ambrosiae s.l. Podosphaera xanthii s.l.Southern blight Sclerotium rolfsii Athelia rolfsii [teleomorph]Smut Entyloma dahliaeStem and tuber rot Rhizoctonia solani Thanatephorus cucumeris [teleomorph]Cottony stem rot Sclerotinia sclerotiorumVascular wilt Fusarium oxysporum Verticillium albo-atrum
Viral diseases
Viral diseasesMosaic Cucumber mosaic virus (CSV), Dahlia mosaic virus (DMV)RNA virus Tobacco streak virus (TSV)Ringspot Impatiens necrotic spot virus (INSV), Tomato spotted wilt virus (TSWV)
References Common Names of Diseases, The American Phytopathological Society