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Diseases of African Daisy
(Gerbera jamesonii H. Bolus ex J. D. Hook)

R. Wick and B. Dicklow, primary collators (last update 4/11/00)

BACTERIAL DISEASES

Bacterial leaf spot

Pseudomonas cichorii (Swingle 1925) Stapp 1928

Southern wilt

Ralstonia solanacearum (Smith 1896) Yabuuchi et al. 1996, comb. nov. = Pseudomonas solanacearum (Smith 1896) Smith 1914

FUNGAL DISEASES

Ascochyta leaf spot

Ascochyta doronici Allesch.

Alternaria leaf spot

Alternaria alternata (Fr.:Fr.) Keissl.

A. dauci (Kühn) Groves & Skolko

A. gerberae Rabbe et al.

Black root rot

Thielaviopsis basicola (Berk. & Broome) Ferraris

     Chalara elegans Nag Raj & Kendr. [synanamorph]

Botrytis blight

Botrytis cinerea Pers.:Fr.

Cercospora leaf spot

Cercospora gerberae Chupp & Viegas

Downy mildew

Plasmopara sp.

Fusarium crown rot

Fusarium solani (Mart.) Sacc.

Fusarium root rot

Fusarium oxysporum Schlechtend.:Fr.

Fusarium wilt

Fusarium oxysporum Schlechtend.:Fr.

Nectria canker

Nectria haematococca Berk. & Broome

Phyllosticta leaf spot

Phyllosticta sp.

Phytophthora crown and root rot

Phytophthora cryptogea Pethybr. & Lafferty

Phytophthora parasitica Dastur

Powdery mildew

Erysiphe cichoracearum DC

Sphaerotheca sp.

Pythium root rot

Pythium spp.

Rhizoctonia root and crown rot

Rhizoctonia solani Kühn

Rhizopus blight

Rhizopus stolonifer (Ehrenb.:Fr.) Vuill.

Sclerotinia blight

Sclerotinia sclerotiorum (Lib.) deBary

Septoria leaf spot

Septoria sp.

Southern blight

Sclerotium rolfsii Sacc.

Verticillium wilt

Verticillium albo-atrum Reinke & Berthier

Web blight

Rhizoctonia solani Kühn

White rust

Albugo tragopogonis (Pers.) S.F. Gray

NEMATODES, PARASITIC

Foliar nematode

Aphelenchoides fragariae (Ritzema Bos) Christie

Root knot nematodes

Meloidogyne arenaria (Neal) Chitwood

M. hapla Chitwood

M. incognita (Kofoid & White) Chitwood

M. javanica (Treub) Chitwood

Sting nematode

Belonolaimus longicaudatus Rau

Stubby root nematode

Paratrichodorus minor (Colbran) Siddiqi

VIRUS AND VIROID DISEASES

Cucumber mosaic

genus Cucumovirus, Cucumber mosac virus (CMV)

Impatiens necrotic spot

genus Tospovirus, Impatiens necrotic spot virus (INSV)

Spotted wilt

genus Tospovirus, Tomato spotted wilt virus (TSWV)

Tobacco mosaic

genus Tobamovirus, Tobacco mosaic virus (TMV)

Tobacco ring spot

genus Tobravirus, Tobacco rattle virus (TRV)

PHYTOPLASMAL DISEASES

Yellows

Phytoplasma