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Diseases of Spinach
(Spinacia oleracea L.)

Steven T. Koike, collator (last update 11/23/15)

BACTERIAL DISEASES

Bacterial leaf spot

Pseudomonas syringae pv. Spinaciae van Hall

Bacterial soft rot

Pectobacterium carotovorum subsp. carotovorum (Jones) Hauben et al. emend.
Gardan et al.
          (syn.: Erwinia carotovora subsp. carotovora (Jones) Bergey et al.)

FUNGAL DISEASES

Alternaria leaf spot

Alternaria alternata (Fr.) Keissl.

A. spinaciae Allesch. & F. Noack

Anthracnose

Colletotrichum dematium (Pers.) Grove
          (syn.: C. spinaciae Ellis & Halst.)

Aphanomyces root rot

Aphanomyces cladogamus Drechs.

A. cochlioides Drechs.

Ascochyta leaf spot

Ascochyta spinaciae Bondartzeva-Monteverde
          (syn.: A. boni-henrici)

Cercospora leaf spot

Cercospora beticola Sacc.

Cladosporium leaf spot

Cladosporium variabile (Cooke) G. A. de Vries
          (syn.: Heterosporium variabile Cooke)

Damping-off

Pythium aphanidermatum (Edson) Fitzp.

P. irregulare Buisman
          (syn.: Globisporangium irregulare (Buisman) Uzuhashi, Tojo, & Kakish)

P. ultimum Trow
          (syn.: Globisporangium ultimum (Trow) Uzuhashi, Tojo, & Kakish)

Rhizoctonia solani J. G. Kühn
          (syn.: Thanatephorus cucumeris (A. B. Frank) Donk)

Downy mildew (Blue mold)

Peronospora effusa (Grev.) Rabenh.
          (syn.: P. farinosa f. sp. spinaciae Byford)

Fusarium root rot

Fusarium oxysporum Schltdl.

Fusarium wilt

Fusarium oxysporum Schltdl.:Fr. f. sp. spinaciae (Sherb.) W. C. Snyder & H. H. Hansen

Phoma blight

Phoma nebulosa (Pers.) Berk.

Phyllosticta leaf spot

Phyllosticta spinacea Zimm.
          (syn.: Neocamarosporium betae (Berl.) Ariyawansa)

Phytophthora root rot

Phytophthora cryptogea Pethbr. & Lafferty

P. megasperma Drechs.

Pleospora leaf spot (Phoma leaf spot)

Pleospora betae (Berl.) Nevod.
          (syns.: Neocamarosporium betae (Berl.) Ariyawansa; Phoma betae A. B. Frank)

Powdery mildew

Leveillula taurica (Lev.) G. Arnaud
          (syn.: Oidiopsis taurica (Lev. E. S. Salmon))

Pythium root rot

Pythium aphanidermatum (Edson) Fitzp.

P. heterothallicum W. A. Campbell & F. F. Hendrix

P. sylvaticum W. A. Campbell & F. F. Hendrix

P. ultimum Trow
          (syn.: Globisporangium ultimum (Trow) Uzuhashi, Tojo, & Kakish)

Ramularia leaf spot

Ramularia spinaciae Nypels

Rhizoctonia root and crown rot

Rhizoctonia solani J. G. Kuhn
          (syn.: Thanatephorus cucumeris (A. B. Frank) Donk)

Rust

Puccinia aristidae Tracy
          (syn.: Aecidium capsicum Jacz.)

Stemphylium leaf spot

Stemphylium botryosum Wallr.

Verticillium wilt

Verticillium dahliae Kleb.

White rust

Albugo occidentalis G. W. Wilson

White smut

Entyloma ellisii Halst.

NEMATODES (PARASITIC)

Clover cyst nematode:

Heterodera trifolii Goffart

Lesion nematode:

Pratylenchus spp.

Root-knot nematode:

Meloidogyne spp.

Stubby-root nematodes:

Paratrichodorus minor (Colbran) Siddiqi

Trichodorus spp.

Sugarbeet cyst nematode:

Heterodera schachtii Schmidt

NONINFECTIOUS DISORDER

Tipburn

Calcium deficiency

PHYTOPLASMAL DISEASE

Aster yellows

Aster yellows phytoplasma

VIRAL DISEASES

Beet mosaic

Genus Potyvirus; Beet mosaic virus (BtMV)

Beet necrotic yellow vein

Genus Benyvirus; Beet necrotic yellow vein virus (BNYVV)

Beet western yellows

Genus Polerovirus; Beet western yellows virus (BWYV)

Broad bean wilt

Genus Fabavirus; Broad bean wilt virus (BBWV)

Cucumber mosaic

Genus Cucumovirus; Cucumber mosaic virus (CMV)

Curly top

Genus Curtovirus; Beet curly top virus (BCTV)

Impatiens necrotic spot

Genus Tospovirus; Impatiens necrotic spot virus (INSV)

Speckles disease (complex)

Genus Polerovirus; Beet western yellows virus (BWYV)

Genus Umbravirus; Lettuce speckles mottle virus (LSMV)

Spinach curly top

Genus Curtovirus; Spinach curly top virus (SCTV)

Spinach severe curly top

Genus Curtovirus; Spinach severe curly top virus (SSCTV)

Spotted wilt

Genus Tospovirus; Tomato spotted wilt virus (TSWV)

Tobacco mosaic

Genus Tobamovirus; Tobacco mosaic virus (TMV)

Tobacco rattle

Genus Tobravirus; Tobacco rattle virus (TRV)

Turnip mosaic

Genus Potyvirus; Turnip mosaic virus (TuMV)