This article is a list of diseases of sunflowers (Helianthus annuus) and jerusalem artichoke (H. tuberosus).

Bacterial diseases

Bacterial diseases
Apical chlorosis Pseudomonas syringae pv. tagetis
Bacterial leaf spot Pseudomonas syringae pv. aptata

P. cichorii
Pseudomonas syringae pv. helianthi
Pseudomonas syringae pv. mellea

Bacterial wilt Pseudomonas solanacearum
Crown gall Agrobacterium tumefaciens
Erwinia stalk rot and head rot Erwinia carotovora subsp. carotovora

E. carotovora subsp. atroseptica

Fungal diseases

Verticillium dahliae infecting sunflower
Fungal diseases
Alternaria leaf blight, stem spot and head rot

Alternaria alternata
= Alternaria tenuis
Alternaria helianthi
= Helminthosporium helianthi
Alternaria helianthicola
Alternaria leucanthemi
Alternaria tenuissima
Alternaria zinniae

Botrytis head rot (gray mold)

Botrytis cinerea
Botryotinia fuckeliania [teleomorph]

Charcoal rot

Macrophomina phaseolina
= Sclerotium bataticola
= Rhizoctonia bataticola

Downy mildew

Plasmopara halstedii
Plasmopara helianthi f. helianthi

Fusarium stalk rot

Fusarium equiseti
Gibberella intricans [teleomorph]
Fusarium solani
Nectria haematococca [teleomorph]
Microdochium tabacinum
= Fusarium tabacinum
Monographella cucumerina [teleomorph]

Fusarium wilt

Fusarium moniliforme
Gibberella fujikuroi [teleomorph]
Fusarium oxysporum

Myrothecium leaf and stem spot

Myrothecium roridum
Myrothecium verrucaria

Phialophora yellows

Phialophora asteris

Phoma black stem

Phoma macdonaldii
Leptosphaeria lindquistii
= Phoma oleracea var. helianthi-tuberosi [teleomorph]

Phomopsis brown stem canker

Phomopsis spp.
Phomopsis helianthi
Diaporthe helianthi [teleomorph]

Phymatotrichum root rot (cotton root rot)

Phymatotrichopsis omnivora
= Phymatotrichum omnivorum

Phytophthora stem rot

Phytophthora spp.
Phytophthora drechsleri

Powdery mildew

Erysiphe cichoracearum
Oidium asteris-punicei [anamorph]
Erysiphe cichoracearum var. latispora
Oidium latisporum[anamorph]
Leveillula compositarum f. helianthi
Leveillula taurica
Oidiopsis sicula [anamorph]
Sphaerotheca fuliginea

Pythium seedling blight and root rot

Pythium spp.
Pythium aphanidermatum
Pythium debaryanum
Pythium irregulare

Rhizoctonia seedling blight

Rhizoctonia solani
Thanatephorus cucumeris [teleomorph]

Rhizopus head rot

Rhizopus arrhizus
= Rhizopus nodosus
Rhizopus microsporus
Rhizopus stolonifer
= Rhizopus nigricans

Rust

Puccinia helianthi
Puccinia xanthii
Uromyces junci

Sclerotinia basal stalk rot and wilt, mid-stalk rot, head rot

Sclerotinia sclerotiorum
= Sclerotinia libertiana
= Whetzelinia sclerotiorum

Sclerotinia basal stalk rot and wilt

Sclerotinia minor

Sclerotium basal stalk and root rot (southern blight)

Sclerotium rolfsii
Athelia rolfsii [teleomorph]

Septoria leaf spot

Septoria helianthi

Verticillium wilt

Verticillium albo-atrum
Verticillium dahliae

White rust

Albugo tragopogonis
= Cystopus tragopogonis

Yellow rust

Coleosporium helianthi
Coleosporium pacificum
= Coleosporium madiae
Peridermium californicum [anamorph]

Nematodes, parasitic

Nematodes, parasitic
Dagger, American

Xiphinema americanum

Pin

Paratylenchus projectus

Lesion

Pratylenchus spp.
Pratylenchus hexincisus

Reniform

Rotylenchulus spp.
Rotylenchulus reniformis

Root knot

Meloidogyne arenaria
Meloidogyne incognita
Meloidogyne javanica

Spiral

Helicotylenchus sp.

Stunt

Tylenchorhynchus nudus
Quinisulcius acutus

Phytoplasma and Viral diseases

Viral diseases
Aster yellows Aster yellows phytoplasma
Sunflower mosaic Cucumber mosaic virus
Sunflower virus Tobacco mosaic virus
Chlorotic Mottle Sunflower Chlorotic Mottle virus (SuCMoV)

References

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