| Alternaria leaf blight | Alternaria tenuissima |
| Alternaria leaf spot | Alternaria arachidis |
| Alternaria spot and veinal necrosis | Alternaria alternata |
| Anthracnose | Colletotrichum arachidis Colletotrichum dematium Colletotrichum mangenoti |
| Aspergillus crown rot | Aspergillus niger |
| Blackhull | Thielaviopsis basicola Chalara elegans [synanamorph] |
| Botrytis blight | Botrytis cinerea Botryotinia fuckeliana [teleomorph] |
| Charcoal rot and Macrophomina leaf spot | Macrophomina phaseolina = Rhizoctonia bataticola |
| Choanephora leaf spot | Choanephora spp. |
| Collar rot | Lasiodiplodia theobromae = Diplodia gossypina |
| Colletotrichum leaf spot | Colletotrichum gloeosporioides Glomerella cingulata [teleomorph] |
| Cylindrocladium black rot | Cylindrocladium crotalariae Calonectria crotalariae [teleomorph] |
| Cylindrocladium leaf spot | Cylindrocladium scoparium Calonectria kyotensis [teleomorph] |
| Damping-off, Aspergillus | Aspergillus flavus Aspergillus niger |
| Damping-off, Fusarium | Fusarium spp. |
| Damping-off, Pythium | Pythium spp. |
| Damping-off, Rhizoctonia | Rhizoctonia spp. |
| Damping-off, Rhizopus | Rhizopus spp. |
| Drechslera leaf spot | Bipolaris spicifera = Drechslera spicifera Cochliobolus spicifer [teleomorph] |
| Fusarium peg and root rot | Fusarium spp. |
| Fusarium wilt | Fusarium oxysporum |
| Leaf spot, early | Cercospora arachidicola Mycosphaerella arachidis [teleomorph] |
| Leaf spot, late | Phaeoisariopsis personata = Cercosporidium personatum Mycosphaerella berkeleyi [teleomorph] |
| Melanosis | Stemphylium botryosum Pleospora tarda [teleomorph] |
| Myrothecium leaf blight | Myrothecium roridum |
| Olpidium root rot | Olpidium brassicae |
| Pepper spot and scorch | Leptosphaerulina crassiasca |
| Pestalotiopsis leaf spot | Pestalotiopsis arachidis |
| Phoma leaf blight | Phoma microspora |
| Phomopsis foliar blight | Phomopsis phaseoli = Phomopsis sojae Diaporthe phaseolorum [teleomorph] |
| Phomopsis leaf spot | Phomopsis spp. |
| Phyllosticta leaf spot | Phyllosticta arachidis-hypogaeae Phyllosticta sojaecola Pleosphaerulina sojicola [teleomorph] |
| Phymatotrichum root rot | Phymatotrichopsis omnivora = Phymatotrichum omnivorum |
| Pod rot (pod breakdown) | Fusarium equiseti = Fusarium scirpi Gibberella intricans [teleomorph] Fusarium solani Nectria haematococca [teleomorph] Pythium myriotylum Rhizoctonia solani Thanatephorus cucumeris [teleomorph] |
| Powdery mildew | Oidium arachidis |
| Pythium peg and root rot | Pythium myriotylum Pythium aphanidermatum Pythium debaryanum Pythium irregulare Pythium ultimum |
| Pythium wilt | Pythium myriotylum |
| Rhizoctonia foliar blight, peg and root rot | Rhizoctonia solani |
| Rust | Puccinia arachidis |
| Scab | Sphaceloma arachidis |
| Sclerotinia blight | Sclerotinia minor Sclerotinia sclerotiorum |
| Stem rot (southern blight) | Sclerotium rolfsii Athelia rolfsii [teleomorph] |
| Verticillium wilt | Verticillium albo-atrum Verticillium dahliae |
| Web blotch (net blotch) | Phoma arachidicola = Ascochyta adzamethica Didymosphaeria arachidicola = Mycosphaerella arachidicola |
| Yellow mold | Aspergillus flavus Aspergillus parasiticus |
| Zonate leaf spot | Cristulariella moricola Sclerotium cinnamomi [syanamorph] Grovesinia pyramidalis [teleomorph] |