This article is a list of diseases of black walnuts (Juglans nigra).
Bacterial diseases
Bacterial diseasesBacterial blight Xanthomonas juglandis
Fungal diseases
Fungal diseasesAnthracnose Gnomonia leptostyla Marssonina juglandis [anamorph]Cylindrocladium root rot Cylindrocladium scoparium Calonectria kyotensis [teleomorph] Cylindrocladiella parva Cylindrocladium parvumFusarium canker Fusarium sporotrichioides Fusarium solani Fusarium lateritium Fusarium oxysporumLeaf spot Mycosphaerella juglandis Cylindrosporium juglandis [anamorph]Nectria canker Nectria galligena Phytophthora root rot Phytophthora citricola Phytophthora cinnamomi Seedling shoot dieback Phomopsis arnoldiae Phomopsis elaeagniThousand cankers diseaseGeosmithia fungusWalnut bunch Phytoplasma organism White mold Microstroma juglandisWhite trunk rot Phellinus igniariusWood decay Schizophyllum commune Hypochnicium vellereum Trametes versicolor Phellinus gilvus Peniophora cinerea Hericium coralloidesZonate leaf spot Grovesinia pyramidalis
Nematodes, parasitic
Nematodes, parasiticLesion nematodesPratylenchus musicolaRoot-knot nematodesMeloidogyne spp.
References
Common Names of Diseases, The American Phytopathological Society