Fungal diseases
Anthracnose leaf blight Anthracnose stalk rot	Colletotrichum graminicola Glomerella graminicola [teleomorph] Glomerella tucumanensis Glomerella falcatum [anamorph]
Aspergillus ear and kernel rot	Aspergillus flavus
Banded leaf and sheath spot	Rhizoctonia solani = Rhizoctonia microsclerotia Thanatephorus cucumeris [teleomorph]
Black bundle disease	Acremonium strictum = Cephalosporium acremonium
Black kernel rot	Lasiodiplodia theobromae = Botryodiplodia theobromae
Borde blanco	Marasmiellus sp.
Brown spot Black spot Stalk rot	Physoderma maydis
Cephalosporium kernel rot	Acremonium strictum = Cephalosporium acremonium
Charcoal rot	Macrophomina phaseolina
Corticium ear rot	Thanatephorus cucumeris = Corticium sasakii
Curvularia leaf spot	Curvularia clavata Curvularia eragrostidis = Curvularia maculans Cochliobolus eragrostidis [teleomorph] Curvularia inaequalis Curvularia intermedia Cochliobolus intermedius [teleomorph] Curvularia lunata Cochliobolus lunatus [teleomorph] Curvularia pallescens Cochliobolus pallescens [teleomorph] Curvularia senegalensis Curvularia tuberculata Cochliobolus tuberculatus [teleomorph]
Didymella leaf spot	Didymella exitalis
Diplodia ear rot and stalk rot	Diplodia frumenti Botryosphaeria festucae [teleomorph]
Diplodia ear rot Stalk rot Seed rot Seedling blight	Diplodia maydis
Diplodia leaf spot or leaf streak	Stenocarpella macrospora = Diplodia macrospora
Downy mildews
Brown stripe downy mildew	Sclerophthora rayssiae
Crazy top downy mildew	Sclerophthora macrospora = Sclerospora macrospora
Green ear downy mildew Graminicola downy mildew	Sclerospora graminicola
Java downy mildew	Peronosclerospora maydis = Sclerospora maydis
Philippine downy mildew	Peronosclerospora philippinensis = Sclerospora philippinensis
Sorghum downy mildew	Peronosclerospora sorghi = Sclerospora sorghi
Spontaneum downy mildew	Peronosclerospora spontanea = Sclerospora spontanea
Sugarcane downy mildew	Peronosclerospora sacchari = Sclerospora sacchari
...
Dry ear rot Cob, kernel and stalk rot	Nigrospora oryzae Khuskia oryzae [teleomorph]
Ear rots, minor	Alternaria alternata = Alternaria tenuis Aspergillus glaucus Aspergillus niger Aspergillus spp. Botrytis cinerea Botryotinia fuckeliana [teleomorph] Cunninghamella sp. Curvularia pallescens Doratomyces stemonitis = Cephalotrichum stemonitis Fusarium culmorum Gonatobotrys simplex Pithomyces maydicus Rhizopus microsporus Rhizopus stolonifer = Rhizopus nigricans Scopulariopsis brumptii
Ergot Horse's tooth	Claviceps gigantea Sphacelia sp. [anamorph]
Eyespot	Aureobasidium zeae = Kabatiella zeae
Fusarium ear and stalk rot	Fusarium subglutinans = Fusarium moniliforme
Fusarium kernel, root and stalk rot, seed rot and seedling blight	Fusarium moniliforme Gibberella fujikuroi [teleomorph]
Fusarium stalk rot Seedling root rot	Fusarium avenaceum Gibberella avenacea [teleomorph]
Gibberella ear and stalk rot	Gibberella zeae Fusarium graminearum [anamorph]
Gray ear rot	Botryosphaeria zeae = Physalospora zeae Macrophoma zeae [anamorph]
Gray leaf spot Cercospora leaf spot	Cercospora sorghi = Cercospora sorghi Cercospora zeae-maydis
Helminthosporium root rot	Exserohilum pedicellatum = Helminthosporium pedicellatum Setosphaeria pedicellata [teleomorph]
Hormodendrum ear rot Cladosporium rot	Cladosporium cladosporioides = Hormodendrum cladosporioides Cladosporium herbarum Mycosphaerella tassiana [teleomorph]
Hyalothyridium leaf spot	Hyalothyridium maydis
Late wilt	Cephalosporium maydis
Leaf spots, minor	Alternaria alternata Ascochyta maydis Ascochyta tritici Ascochyta zeicola Bipolaris victoriae = Helminthosporium victoriae Cochliobolus victoriae [teleomorph] Cochliobolus sativus Bipolaris sorokiniana [anamorph] = Helminthosporium sorokinianum = H. sativum Epicoccum nigrum Exserohilum prolatum = Drechslera prolata Setosphaeria prolata [teleomorph] Graphium penicillioides Leptosphaeria maydis Leptothyrium zeae Ophiosphaerella herpotricha Scolecosporiella sp. [anamorph] Paraphaeosphaeria michotii Phoma sp. Septoria zeae Septoria zeicola Septoria zeina
Northern corn leaf blight White blast Crown stalk rot Stripe	Setosphaeria turcica Exserohilum turcicum [anamorph] = Helminthosporium turcicum
Northern corn leaf spot Helminthosporium ear rot (race 1)	Cochliobolus carbonum Bipolaris zeicola [anamorph] = Helminthosporium carbonum
Penicillium ear rot Blue eye Blue mold	Penicillium spp. Penicillium chrysogenum Penicillium expansum Penicillium oxalicum
Phaeocytostroma stalk rot and root rot	Phaeocytostroma ambiguum = Phaeocytosporella zeae
Phaeosphaeria leaf spot	Phaeosphaeria maydis = Sphaerulina maydis
Physalospora ear rot Botryosphaeria ear rot	Botryosphaeria festucae = Physalospora zeicola Diplodia frumenti [anamorph]
Purple leaf sheath	Hemiparasitic bacteria and fungi
Pyrenochaeta stalk rot and root rot	Phoma terrestris = Pyrenochaeta terrestris
Pythium root rot	Pythium spp. Pythium arrhenomanes Pythium graminicola
Pythium stalk rot	Pythium aphanidermatum = Pythium butleri
Red kernel disease Ear mold, leaf and seed rot	Epicoccum nigrum
Rhizoctonia ear rot Sclerotial rot	Rhizoctonia zeae Waitea circinata [teleomorph]
Rhizoctonia root rot and stalk rot	Rhizoctonia solani Rhizoctonia zeae
Root rots, minor	Alternaria alternata Cercospora sorghi Dictochaeta fertilis Fusarium acuminatum Gibberella acuminata [teleomorph] Fusarium equiseti Gibberella intricans [teleomorph] Fusarium oxysporum Fusarium pallidoroseum Fusarium poae Fusarium roseum Gibberella cyanogena Fusarium sulphureum [anamorph] Microdochium bolleyi Mucor sp. Periconia circinata Phytophthora cactorum Phytophthora drechsleri Phytophthora nicotianae Rhizopus arrhizus
Rostratum leaf spot Helminthosporium leaf disease, ear and stalk rot	Setosphaeria rostrata = Helminthosporium rostratum
Rust, common corn	Puccinia sorghi
Rust, southern corn	Puccinia polysora
Rust, tropical corn	Physopella pallescens Physopella zeae = Angiopsora zeae
Sclerotium ear rot Southern blight	Sclerotium rolfsii Athelia rolfsii [teleomorph]
Seed rot-seedling blight	Bipolaris sorokiniana Bipolaris zeicola = Helminthosporium carbonum Diplodia maydis Exserohilum pedicillatum Exserohilum turcicum = Helminthosporium turcicum Fusarium avenaceum Fusarium culmorum Fusarium moniliforme Gibberella zeae Fusarium graminearum [anamorph] Macrophomina phaseolina Penicillium spp. Phomopsis spp. Pythium spp. Rhizoctonia solani Rhizoctonia zeae Sclerotium rolfsii Spicaria spp.
Selenophoma leaf spot	Selenophoma sp.
Sheath rot	Gaeumannomyces graminis
Shuck rot	Myrothecium gramineum
Silage mold	Monascus purpureus Monascus ruber
Smut, common	Ustilago zeae = Ustilago maydis
Smut, false	Ustilaginoidea virens
Smut, head	Sphacelotheca reiliana = Sporisorium holci-sorghi
Southern corn leaf blight and stalk rot	Cochliobolus heterostrophus Bipolaris maydis [anamorph] = Helminthosporium maydis
Southern leaf spot	Stenocarpella macrospora = Diplodia macrospora
Stalk rots, minor	Cercospora sorghi Fusarium episphaeria Fusarium merismoides Fusarium oxysporum Fusarium poae Fusarium roseum Fusarium solani Nectria haematococca [teleomorph] Fusarium tricinctum Mariannaea elegans Mucor spp. Rhopographus zeae Spicaria spp.
Storage rots	Aspergillus spp. Penicillium spp. and other fungi
Tar spot	Phyllachora maydis
Trichoderma ear rot and root rot	Trichoderma viride = Trichoderma lignorum Hypocrea sp. [teleomorph]
White ear rot, root and stalk rot	Stenocarpella maydis = Diplodia zeae
Yellow leaf blight	Ascochyta ischaemi Phyllosticta maydis Mycosphaerella zeae-maydis [teleomorph]
Zonate leaf spot	Gloeocercospora sorghi