This article is a list of diseases of pigeon peas (Cajanus cajan).
Bacterial diseases
Bacterial diseasesBacterial leaf spot and stem canker Xanthomonas campestris pv. cajaniHalo blightPseudomonas amygdali pv. phaseolicola
Fungal diseases
Fungal diseasesAlternaria blight Alternaria alternata Alternaria tenuissimaAnthracnose Colletotrichum cajani Colletotrichum truncatumArmillaria root rot Armillaria melleaBotryodiplodia blight Lasiodiplodia theobromae = Botryodiplodia theobromaeBotryosphaeria stem canker Botryosphaeria xanthocephala Fusicoccum cajani [anamorph]Botrytis gray mold Botrytis cinerea Cercoseptoria leaf spot Cercoseptoria cajanicolaCercospora leaf spot Mycovellosiella cajani= Cercospora cajani Cercospora indica Cercospora instabilis Cercospora thirumalachariiCladosporium leaf blight Cladosporium oxysporumCladosporium leaf spot Cladosporium cladosporioidesCollar rot Sclerotium rolfsii Athelia rolfsii [teleomorph] = Corticium rolfsiiColletotrichum stem canker Colletotrichum crassipesDamping-off Pythium aphanidermatum Pythium splendens var. hawaiianumDieback and stem canker Colletotrichum capsiciDiplodia stem canker Diplodia cajaniDry root rotMacrophomina phaseolina = Rhizoctonia bataticolaFusarium leaf blight Fusarium pallidoroseum = Fusarium semitectumFusarium seedling rot Fusarium avenaceum Fusarium equisetiFusarium wilt Fusarium udum Gibberella indica [teleomorph]Macrophomina stem canker Macrophomina phaseolina =Rhizoctonia bataticolaMyrothecium leaf spot Myrothecium gramineum Myrothecium roridumNeocosmospora root rot Neocosmospora vasinfectaPericonia leaf spot Periconia byssoidesPhaeoisariopsis leaf spot Phaeoisariopsis griseolaPhoma stem canker Phoma cajaniPhyllosticta leaf spot Phyllosticta cajaniPhytophthora blight Phytophthora drechsleri f.sp. cajaniPhytophthora root rot and stem blight Phytophthora drechsleriPhytophthora Stem Canker Phytophthora nicotianae var. parasitica = Phytophthora parasiticaPowdery mildew Leveillula taurica Oidiopsis taurica [anamorph] Ovulariopsis ellipsosporaRust Uredo cajaniSclerotinia stem rot Sclerotinia sclerotiorumSeedling or seed rot Aspergillus flavus Aspergillus niger Synchytrium brown gall and wilt Synchytrium phaseoli-radiatiSynchytrium orange gall Synchytrium umbilicatumWeb blight Thanatephorus cucumeris Rhizoctonia solani [anamorph]Wet leaf rot Choanephora cucurbitarumWet root rotRhizoctonia solani Thanatephorus cucumeris [teleomorph]
Nematodes, parasitic
Nematodes, parasiticDirty root (reniform nematode) Rotylenchulus reniformisLance nematode Aphasmatylenchus Hoplolaimus seinhorstiPearly root (cyst nematode) Heterodera cajaniRoot-knot (root-knot nematode) Meloidogyne acronea Meloidogyne arenaria Meloidogyne incognita Meloidogyne javanica
Viral diseases
Viral diseasesArhar mosaic Arhar mosaic virus Foliar vein yellowing Rhabdovirus Mild mosaic Tobacco mosaic virus Mosaic Alfalfa mosaic virus Cowpea mosaic virus Phyllody Mycoplasma-like organism Rhynchosia little leaf Mycoplasma-like organism Rhynchosia Mosaic Rosette Mycoplasma-like organism Virus (most likely) Sterility mosaic Pigeonpea Sterility Mosaic VirusWitches' broom Mycoplasma-like organism Yellow mosaic Mung bean yellow mosaic virus
Miscellaneous diseases and disorders
Miscellaneous diseases and disordersMarginal leaf burn Salinity injury (most likely)
References Common Names of Diseases, The American Phytopathological Society