Diseases of Pigeonpea
(Cajanus cajan (L.) Millsp.)

Y. L. Nene and V. K. Sheila, primary collators (last updated 6/25/96)

Alternaria blight

Alternaria alternata (Fr.:Fr.) Keissl.

Alternaria tenuissima (Kunze:Fr.) Wiltshire

Anthracnose

Colletotrichum cajani Rangel

Colletotrichum truncatum (Schwein.) Andrus & W.D.
    Moore

Arhar mosaic

Arhar mosaic virus

Armillaria root rot

Armillaria mellea (Vahl.:Fr.) Kummer

Bacterial leaf spot and stem canker

Xanthomonas campestris pv.

cajani (Kulkarni, Patel & Abhyankar) Dye

Botryodiplodia blight

Lasiodiplodia theobromae (Pat.) Griffon & Maubl.

(= Botryodiplodia theobromae Pat.)

Botryosphaeria stem canker

Botryosphaeria xanthocephala (Syd., P. Syd. & Butler) Theiss. (anamorph: Fusicoccum cajani (Syd., P. Syd. & Butler) Samuel & Singh

Botrytis gray mold

Botrytis cinerea Pers.:Fr

Bracteomania

Genetic abnormality

Cercoseptoria leaf spot

Cercoseptoria cajanicola Pavgi & Singh

Cercospora leaf spot

Mycovellosiella cajani (Hennings) Rangel ex Trotter

(= Cercospora cajani Hennings)

Cercospora indica Singh

Cercospora instabilis Rangel

Cercospora thirumalacharii Sharma & Mishra

Cladosporium leaf blight

Cladosporium oxysporum Berk. & M.A. Curtis

Cladosporium leaf spot

Cladosporium cladosporioides (Fresen.) G.A. de Vries

Collar rot

Sclerotium rolfsii Sacc.

(teleomorph: Athelia rolfsii (Curzi) Tu & Kimbrough

= Corticium rolfsii Curzi)

Colletotrichum stem canker

Colletotrichum crassipes (Speg.) v. Arx

Damping-off

Pythium aphanidermatum (Edson) Fitzpatrick

Pythium splendens H. Braun var. hawaiianum Sideris

Dieback and stem canker

Colletotrichum capsici (Syd.) E. J. Butler & Bisby

Diplodia stem canker

Diplodia cajani Raychaudhuri

Dodder

Cuscuta hyalina Roth.

Dry root rot

Macrophomina phaseolina (Tassi) Goidanich

(= Rhizoctonia bataticola (Taubenhaus) E. J. Butler)

Foliar vein yellowing

Rhabdovirus

Fusarium leaf blight

Fusarium pallidoroseum (Cooke) Sacc.

(= Fusarium semitectum Berk. & Ravenel)

Fusarium seedling rot

Fusarium avenaceum (Corda:Fr.) Sacc.

Fusarium equiseti (Corda) Sacc.

Fusarium wilt

Fusarium udum E.J. Butler

(teleomorph: Gibberella indica B. Rai & R.S. Upadhyay)

Halo blight

Pseudomonas syringae pv. phaseolicola (Burkholder) Young, Dye & Wilkie

Macrophomina stem canker

Macrophomina phaseolina (Tassi) Goidanich

(= Rhizoctonia bataticola (Taubenhaus) E.J. Butler)

Marginal leaf burn

Salinity injury (most likely)

Mild mosaic

Tobacco mosaic virus

Mosaic

Alfalfa mosaic virus

Cowpea mosaic vVirus

Myrothecium leaf spot

Myrothecium gramineum Lib.

Myrothecium roridum Tode:Fr.

Nematodes (parasitic):

Dirty root (reniform nematode)

Rotylenchulus reniformis Linford & Oliveira

Lance nematode

Aphasmatylenchus straturatus Germani

Hoplolaimus seinhorsti Luc

Pearly root (cyst nematode)

Heterodera cajani Koshy

Root-knot (root-knot nematode)

Meloidogyne acronea Coetzee

Meloidogyne arenaria (Neal) Chitwood

Meloidogyne incognita (Kofoid & White) Chitwood

Meloidogyne javanica (Treub) Chitwood

Neocosmospora root rot

Neocosmospora vasinfecta E. F. Smith

Periconia leaf spot

Periconia byssoides Pers.

Phaeoisariopsis leaf spot

Phaeoisariopsis griseola (Sacc.) Ferraris

Phoma stem canker

Phoma cajani (Rangel) Khune & Kapoor

Phyllody

Mycoplasma-like organism

Phyllosticta leaf spot

Phyllosticta cajani Rangel

Phytophthora blight

Phytophthora drechsleri Tucker f. sp. cajani (Mahendra Pal, Grewal & Sarbhoy) Kannaiyan, Ribeiro, Erwin & Nene

Phytophthora root rot and stem blight

Phytophthora drechsleri Tucker

Phytophthora Stem Canker

Phytophthora nicotianae Breda de Haan var. parasitica
    (Dastur) G.M. Waterhouse

(= Phytophthora parasitica Dastur)

Powdery mildew

Leveillula taurica (Lév.) Arnaud)

(anamorph: Oidiopsis taurica (Lév.) Salmon)

Ovulariopsis ellipsospora Gorter

Rhynchosia little leaf

Mycoplasma-like organism

Rhynchosia Mosaic

Virus (most likely)

Rosette

Mycoplasma-like organism

Rust

Uredo cajani Sydow

Sclerotinia stem rot

Sclerotinia sclerotiorum (Lib.) de Bary

Seedling or seed rot

Aspergillus flavus Link:Fr.

Aspergillus niger Tiegh.

Sterility mosaic

Unknown

Synchytrium brown gall and wilt

Synchytrium phaseoli-radiati Sinha & Gupta

Synchytrium orange gall

Synchytrium umbilicatum (Berk. & Broome) Karling

Web blight

Thanatephorus cucumeris (Frank) Donk

(anamorph: Rhizoctonia solani Kühn)

Wet leaf rot

Choanephora cucurbitarum (Berk. & Ravenel) Thaxt.

Wet root rot

Rhizoctonia solani Kühn

(teleomorph: Thanatephorus cucumeris (Frank) Donk

Witches' broom

Mycoplasma-like organism

Yellow mosaic

Mung bean yellow mosaic virus