List of papaya diseases

This article is a list of diseases of papaya (Carica papaya).

Bacterial diseases

Bacterial diseases
Bacterial canker	Erwinia sp.
Bacterial leaf spot	Pseudomonas caricapapayae
Bacterial wilt	Pseudomonas solanacearum
Bunchy top	Unknown bacterium
Erwinia decline	Erwinia sp.
Erwinia mushy canker	Erwinia sp.
Internal yellowing	Enterobacter cloacae
Purple stain	Erwinia herbicola

Fungal diseases

Fungal diseases
Alternaria fruit spot	Alternaria alternata
Angular leaf spot	Leveillula taurica
Anthracnose	Colletotrichum gloeosporioides
Black spot	Asperisporium caricae Cercospora papayae Phomopsis caricae-papayae
Blossom spot	Choanephora cucurbitarum
Black rot	Mycosphaerella caricae
Brown spot	Corynespora cassiicola = Cercospora melonis = Cercospora vignicola = Helminthosporium cassiicola = Helminthosporium vignae = Helminthosporium vignicola
Chocolate spot	Colletotrichum gloeosporioides
Collar rot	Cylindrocladium crotalariae Calonectria crotalariae [teleomorph]
Damping off	Colletotrichum gloeosporioides Phytophthora palmivora Phytophthora nicotianae = Phytophthora parasitica Pythium aphanidermatum Pythium debaryanum Pythium ultimum Pythium sp. Rhizoctonia solani Thanatephorus cucumeris [teleomorph]
Dry rot	Phoma caricae-papayae = Ascochyta caricae = Ascochyta caricae-papayae Mycosphaerella caricae [teleomorph]
Foot rot	Pythium aphanidermatum Pythium ultimum
Fruit rot	Monilia sp.
Fruit spot	Cercospora mamaonis
Fusarium fruit rot	Fusarium solani Fusarium spp.
Guignardia spot	Guignardia sp.
Greasy spot	Corynespora cassiicola = Cercospora melonis = Cercospora vignicola = Helminthosporium cassiicola = Helminthosporium vignae = Helminthosporium vignicola
Internal blight	Cladosporium sp. Fusarium sp. Penicillium sp.
Lasiodiplodia fruit rot	Lasiodiplodia theobromae = Botryodiplodia theobromae = Botryodiplodia gossypii = Diplodia theobromae = Diplodia gossypina = Diplodia natalensis = Lasiodiplodia triflorae
Leaf spot	Alternaria sp. Asperisporium caricae Cercospora mamaonis Cercospora papayae Choanephora cucurbitarum Curvularia caricae-papayae Gloeosporium sp. Phoma caricae-papayae Mycosphaerella caricae [teleomorph] Phyllosticta sp.
Petiole spot	Didymella sp.
Phytophthora blight	Phytophthora palmivora Phytophthora nicotianae var. parasitica = Phytophthora parasitica
Powdery mildew	Erysiphe cichoracearum Erysiphe sp. Oidium caricae Oidium indicum Ovulariopsis papayae Sphaerotheca fuliginea Sphaerotheca humuli
Phytophthora fruit rot	Phytophthora capsici Phytophthora nicotianae var. parasitica = Phytophthora parasitica Phytophthora palmivora
Rhizopus soft rot	Rhizopus stolonifer = Rhizopus nigricans
Root rot	Phytophthora palmivora Pythium aphanidermatum Pythium ultimum Pythium spp. Rhizoctonia solani Thanatephorus cucumeris [teleomorph]
Sclerotium blight	Sclerotium rolfsii Athelia rolfsii [teleomorph]
Seedling blight	Colletotrichum gloeosporioides
Stem-end rot	Alternaria alterneta Colletotrichum gloeosporioides Fusarium sp. Lasiodiplodia theobromae = Botryodiplodia theobromae = Botryodiplodia gossypii = Diplodia theobromae = Diplodia gossypina = Diplodia natalensis = Lasiodiplodia triflorae Phoma caricae-papayae = Ascochyta caricae = Ascochyta caricae-papayae Mycosphaerella caricae [teleomorph] Phomopsis sp. Rhizopus stolonifer
Stemphylium fruit spot	Stemphylium lycopersici = Thyrospora lycopersici = Stemphylium floridanum
Stem rot	Fusarium solani Nectria haematococca [teleomorph] Fusarium sp. Phytophthora palmivora Pythium aphanidermatum Pythium ultimum
Target spot	Phyllosticta caricae-papayae
Verticillium wilt	Verticillium dahliae
Wet fruit rot	Phomopsis sp.

Miscellaneous diseases and disorders

Miscellaneous diseases and disorders
Algal leaf spot	Cephaleuros virescens
Bumpy fruit	Boron deficiency
Freckles	Physiological
Nivum Haamir dieback	Unknown cause

Nematodes, parasitic

Nematodes, parasitic
Reniform nematode	Rotylenchulus reniformis Rotylenchulus parvus
Root-knot nematode	Meloidogyne incognita Meloidogyne javanica Meloidogyne arenaria Meloidogyne hapla

Phytoplasmal diseases

Phytoplasmal diseases
Dieback	Phytoplasma
Yellow crinkle	Phytoplasma

Viral and viroid diseases

Viral and viroid diseases
Apical necrosis	Papaya apical necrosis virus
Droopy necrosis	Papaya droopy necrosis virus
Feather leaf	Unknown virus
Leaf curl	Virus suspected
Mosaic	Papaya mosaic virus
Papaya ringspot	Papaya ringspot virus
Papaya lethal yellowing	Papaya lethal yellowing virus
Spotted wilt	Tomato spotted wilt virus
Terminal necrosis and wilt	Tobacco ringspot virus

References

• Common Names of Diseases, The American Phytopathological Society