# List of cucurbit diseases

This article is a list of diseases of cucurbits (Citrullus spp., Cucumis spp., Cucurbita spp., and others).

## Bacterial diseases

Bacterial diseases :
| Angular leaf spot | Pseudomonas amygdali pv. lachrymans |
| Bacterial fruit blotch/seedling blight | Acidovorax avenae subsp. citrulli = Pseudomonas pseudoalcaligenes subsp. citrulli |
| Bacterial leaf spot | Xanthomonas campestris pv. cucurbitae |
| Bacterial rind necrosis | Erwinia spp. |
| Bacterial soft rot | Erwinia carotovora subsp. carotovora |
| Bacterial wilt | Erwinia tracheiphila |
| Brown spot | Erwinia ananas |

## Fungal diseases

Fungal diseases :
| Alternaria leaf blight | Alternaria cucumerina |
| Alternaria leaf spot | Alternaria alternata f.sp. cucurbitae |
| Anthracnose (stem, leaf and fruit) | Colletotrichum orbiculare = Colletotrichum lagenarium Glomerella lagenarium [teleomorph] |
| Belly rot | Rhizoctonia solani Thanatephorus cucumeris [teleomorph] |
| Black root rot | Thielaviopsis basicola |
| Blue mold rot | Penicillium spp. Penicillium digitatum |
| Cephalosporium root and hypocotyl rot, stem streak and dieback | Acremonium spp. = Cephalosporium spp. |
| Cercospora leaf spot | Cercospora citrullina |
| Charcoal rot Vine decline and fruit rot | Macrophomina phaseolina |
| Choanephora fruit rot | Choanephora cucurbitarum |
| Collapse of melon | Monosporascus eutypoides = Bitrimonospora indica |
| Corynespora blight/target spot | Corynespora cassiicola |
| Crater rot (fruit) | Myrothecium roridum |
| Crown and foot rot | Fusarium solani = Haematonectria haematococca Nectria haematococca [teleomorph] |
| Damping-off | Acremonium spp. Fusarium spp. Fusarium equiseti Gibberella intricans[teleomorph] Phytophthora sp. Pythium spp. Rhizoctonia solani Thielaviopsis basicola Other fungi |
| Downy mildew | Pseudoperonospora cubensis |
| Fusarium fruit rot | Fusarium equiseti = Fusarium roseum f. gibbosum Fusarium graminearum Gibberella zeae [teleomorph] Fusarium semitectum Fusarium solani f. sp. cucurbitae Fusarium spp. |
| Fusarium wilt | Fusarium oxysporum (with these formae speciales:) Fusarium oxysporum f.sp. benincasae Fusarium oxysporum f.sp. cucumerinum Fusarium oxysporum f.sp. lagenariae Fusarium oxysporum f.sp. luffae Fusarium oxysporum f.sp. melonis Fusarium oxysporum f.sp. momordicae Fusarium oxysporum f.sp. niveum |
| Gray mold | Botrytis cinerea Botryotinia fuckeliana [teleomorph] |
| Gummy stem blight (vine decline) | Didymella bryoniae = Mycosphaerella melonis Phoma cucurbitacearum [anamorph] |
| Lasiodiplodia vine decline/fruit rot | Lasiodiplodia theobromae = Diplodia natalensis |
| Monosporascus root rot/Myrothecium canker (black canker) | Monosporascus cannonballus Myrothecium roridum |
| Net spot | Leandria momordicae |
| Phoma blight | Phoma exigua var. exigua = Ascochyta phaseolorum |
| Purple stem | Diaporthe melonis Phomopsis cucurbitae [teleomorph] |
| Phomopsis black stem | Phomopsis sclerotioides |
| Phyllosticta leaf spot | Phyllosticta cucurbitacearum |
| Phytophthora root rot | Phytophthora spp. Phytophthora capsici |
| Pink mold rot | Trichothecium roseum |
| Plectosporium blight | Plectosporium tabacinum |
| Powdery mildew | Sphaerotheca fuliginea Erysiphe cichoracearum |
| Pythium fruit rot (cottony leak) | Pythium spp. |
| Rhizopus soft rot (fruit) | Rhizopus stolonifer = Rhizopus nigricans |
| Scab/gummosis | Cladosporium cucumerinum |
| Sclerotinia stem rot | Sclerotinia sclerotiorum |
| Septoria leaf blight | Septoria cucurbitacearum |
| Southern blight (Sclerotium fruit and stem rot) | Sclerotium rolfsii Athelia rolfsii [teleomorph] |
| Sudden wilt | Pythium aphanidermatum |
| Ulocladium leaf spot | Ulocladium consortiale |
| Verticillium wilt | Verticillium albo-atrum Verticillium dahliae |
| Web blight | Rhizoctonia solani |

## Miscellaneous diseases and disorders

Miscellaneous diseases and disorders :
| Air pollution injury | Ozone, sulfur dioxide and others |
| Bitter fruit | Sunburn injury, physiologic stress |
| Blossom end rot | Physiological disorder, calcium deficiency, moisture imbalance |
| Bottle neck of fruit | Incomplete pollination |
| Measles | Physiological disorder, salt toxicity |
| Sandburn | Physiological disorder |
| Sunscald (fruit) | Excessive or intense direct heat/ solar injury |
| Windburn | Physiological disorder |

## Nematodes, parasitic

Nematodes, parasitic :
| Dagger, American | Xiphinema americanum |
| Lesion | Pratylenchus spp. |
| Pin | Paratylenchus spp. |
| Reniform | Rotylenchulus reniformis |
| Ring | Circonemella spp. |
| Root-knot | Meloidogyne spp. |
| Spiral | Helicotylenchus spp. |
| Sting | Belonolaimus longicaudatus |
| Stubby-root | Paratrichodorus minor |
| Stunt | Tylenchorhynchus claytoni |