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Diseases of Rye
(Secale cereale L.)

Barry M. Cunfer, primary collator (last update 4/7/93)

BACTERIAL DISEASES

Bacterial streak (black chaff)

Xanthomonas campestris pv. translucens (Jones et al.) Dye

Halo blight

Pseudomonas syringae pv. coronafaciens (Elliott) Young
et al.

FUNGAL DISEASES

Anthracnose

Colletotrichum graminicola (Ces.) G.W. Wilson

(teleomorph: Glomerella graminicola Politis)

Black head molds

Alternaria spp.

Cladosporium herbarum (Pers.:Fr.) Link

(teleomorph: Mycosphaerella tassiana (De Not.) Johans.)

Epicoccum spp.

Sporobolomyces spp.

Stemphylium spp.

Black point

Bipolaris sorokiniana (Sacc.) Shoemaker

(teleomorph: Cochliobolus sativus (Ito & Kuribayashi)
   Drechs. ex Dastur)

Fusarium spp.

Bunt (stinking smut)

Tilletiacaries (DC.) Tul. & C. Tul.

= T. tritici (Bjerk.) G. Wint. in Rabenh.

T. laevis Kühn in Rabenh.

= T. foetida (Wallr.) Liro

Cephalosporium stripe

Hymenula cerealis Ellis & Everh.

= Cephalosporium gramineum Nisikado & Ikata in Nisikado
   et al.

Common root rot and seedling blight

Bipolaris sorokiniana (Sacc.) Shoemaker

= Helminthosporium sativum Pammel et al.

Cottony snow mold (winter crown rot)

Coprinus psychromorbidus Redhead & J.A. Traquair

Dilophospora leaf spot (twist)

Dilophospora alopecuri (Fr.:Fr.) Fr.

Dwarf bunt

Tilletia controversa Kühn in Rabenh.

Ergot

Claviceps purpurea (Fr.:Fr.) Tul.

(anamorph: Sphacelia segetum Lév.)

Fusarium root rot

Fusarium culmorum (W.G. Sm.) Sacc.

Halo spot

Pseudoseptoria donacis (Pass.) Sutton

= Selenophoma donacis (Pass.) Sprague & A.G. Johnson

Karnal bunt (partial bunt)

Neovossia indica (Mitra) Mundkur

= Tilletia indica Mitra

Leaf rust (brown rust)

Puccinia recondita Roberge ex Desmaz.

(anamorph: Aecidium clematidis DC.)

Leaf streak

Cercosporidium graminis (Fuckel) Deighton

= Scolicotrichum graminis Fuckel

Leptosphaeria leaf spot

Phaeosphaeria herpotrichoides (De Not.) L. Holm

= Leptosphaeria herpotrichoides De Not.

Loose smut

Ustilago tritici (Pers.) Rostr.

Pink snow mold (Fusarium patch)

Microdochium nivale (Fr.) Samuels & I.C. Hallet

= Fusarium nivale Ces. ex Berl. & Voglino

(teleomorph: Monographella nivalis (Schaffnit) E. Müller)

Powdery mildew

Erysiphe graminis DC. f. sp. Em. Marchal

Pythium root rot

Pythium aphanidermatum (Edson) Fitzp.

P. arrhenomanes Drechs.

P. debaryanum Auct. non Hesse

P. graminicola Subramanian

P. ultimum Trow

Scab

Gibberella zeae (Schwein.) Petch

(anamorph: Fusarium graminearum Schwabe)

Scald

Rhynchosporium secalis (Oudem.) J.J. Davis

Septoria leaf blotch

Septoria secalis Prill. & Delacr.

Septoria tritici blotch (speckled leaf blotch)

Septoriatritici Roberge in Desmaz.

(teleomorph: Mycosphaerella graminicola (Fuckel) J. Schröt.
   in Cohn)

Sharp eyespot and Rhizoctonia root rot

Rhizoctonia cerealis Van der Hoeven

(teleomorph: Ceratobasidium cereale D. Murray & L.L.
   Burpee)

Snow scald (Sclerotinia snow mold)

Myriosclerotinia borealis (Bubák. & Vleugel) L.M. Kohn

= Sclerotinia borealis Bubák. & Vleugel

Speckled (or gray) snow mold (Typhula blight)

Typhula idahoensis Remsberg

T. incarnata Fr.

T. ishikariensis Imai

T. ishikariensis Imai var. canadensis J.D. Smith & Arsvoll in
   Arsvoll & J.D. Smith

Spot blotch

Bipolaris sorokiniana (Sacc.) Shoemaker

Stagonospora blotch (glume blotch)

Stagonospora nodorum (Berk.) Castellani & E.G. Germano

= Septoria nodorum Berk. in Berk. & Broome

(teleomorph: Phaeosphaeria nodorum (E. Müller)
   Hedjaroude

= Leptosphaeria nodorum E. Müller)

Stalk smut (stripe smut)

Urocystis occulta (Wallr.) Rabenh. ex Fuckel

Stem rust

Puccinia graminis Pers.:Pers.

= P. graminis Pers. f. sp. secalis Eriks. & E. Henn.

Storage molds

Alternaria spp.

Aspergillus spp.

Epicoccum spp.

Nigrospora spp.

Penicillium spp.

Rhizopus spp.

Strawbreaker (eyespot or foot rot)

Pseudocercosporella herpotrichoides (Fron) Deighton

Stripe rust (yellow rust)

Puccinia striiformis Westend.

(anamorph: Uredo glumarum J.C. Schmidt)

Take-all

Gaeumannomyces graminis (Sacc.) Arx & Olivier var. tritici J. Walker

Tan spot (yellow leaf spot)

Pyrenophora tritici-repentis (Died.) Drechs.

(anamorph: Drechslera tritici-repentis (Died.) Shoemaker

= Helminthosporium tritici-repentis Died.)

NEMATODES, PARASITIC

Cereal cyst

Heterodera avenae Wollenweber

Leaf and stem

Ditylenchus dipsaci (Kühn) Filipjev

Root gall

Subanguina radicicola (Greeff) Paramonov

Root knot

Meloidogyne spp.

Seed gall

Anguina tritici (Steinbuch) Chitwood

VIRUS DISEASES

Barley yellow dwarf

Barley yellow dwarf virus

Soilborne mosaic

Wheat soilborne mosaic virus

Wheat streak mosaic

Wheat streak mosaic virus