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Diseases

Septoria leaf blotch

Septoria

Septoria leaf blotch is a complex fungal disease of cereal crops, manifesting as leaf and glume blotch, leading to tissue necrosis and yield reduction.

Mentioned in descriptions 4 644 varieties reference book.

The disease is caused by fungi of the genus Septoria and related species, which infect all above-ground parts of plants. Light beige or grey-brown spots form on leaves and stems, and black dots, known as pycnidia, develop on their surface over time. The disease is dangerous in temperate climates with high humidity and frequent rainfall.

Pathogen development depends on weather factors, particularly temperatures in the range of +15…+25 °C and air humidity above 80%. The disease leads to a reduction in the photosynthetic area, grain shriveling, and a decline in baking quality. The level of loss varies from 10–15% in normal years to 50% during epiphytotics.

Varietal resistance is divided into vertical, based on specific Stb genes, and horizontal, which is considered more long-lasting. Horizontal resistance is determined by morphological characteristics: cuticle density, pubescence, the presence of a waxy bloom, and lack of sensitivity to fungal toxins.

Resistance evaluation in variety trials is conducted using infectious-provocative backgrounds, visual assessment of the degree of infection, and laboratory methods, including molecular diagnostics. The obtained data are compared with reference indicators to determine the effectiveness of variety protection under specific conditions.

Sources10

Breakdown by crop

Septoria blotch — soft wheat 945 Septoria blotch of triticale 147 Septoria tritici blotch — durum wheat 128 Septoria blotch of oats 30 Septoria Leaf Blotch of Rye 26 Septoria Leaf Spot of Sunflower 23 Septoria Brown Spot — Soybean 21 Septoria Leaf Spot — Celeriac 21 Gooseberry Septoria Leaf Spot 21 Septoria blotch of barley 20 Septoria Blotch of Spelt 17 Septoria Blotch — Common Wheat 16 Septoria Leaf Spot of Black Currant 15 Septoria Leaf Spot — Celery 14 Septoria leaf spot of red currant 12 Septoria Blight of Wheat 9 Pear Septoria Leaf Spot 9 Parsley Septoria leaf spot 9 Tomato Septoria Leaf Spot 7 Septoria Blight of Pea 5 Celery Septoria Blight 4 Septoria Leaf Spot of Lettuce 3 Septoria Leaf Blotch of Naked Oats 3

Found in these crops

Bread wheat 933 Triticale 143 Durum wheat 127 Oat 30 Rye 26 Celeriac 25 Sunflower 23 Soybean 22 Gooseberry 21 Barley 20 Blackcurrant 16 Celery 16

Varieties that feature this in their description

Selection based on the description text, not official resistance ratings: such data is not available in registers. Mention indicates that the trait is discussed in the variety's sources; see the variety's profile for details on what is specifically stated.

Cadenza.

Protection expired

Triticum aestivum L. · Bread wheat

PLANT BREEDING INTERNATIONAL CAMBRIDGE

DK FR IE NL PL SE
17 records

RGT Cesario

Active

Triticum aestivum L. · Bread wheat

Societé RAGT 2N,FR

FR HR
7 records

SU Astragon

Active

Triticum aestivum L. · Bread wheat

Saaten Union Recherche SARL, Estrées-Saint -Denis FR

FR HU
8 records

TC Lupus

Active

x Triticosecale Wittm. ex A. Camus · Triticale

NORDSAAT Saatzuchtgesellschaft mit beschränkter Haftung Herrn Dr. Ralf Schachschneider

DE HU LT
7 records

Hyno esta

Application submitted

Triticum aestivum L. · Bread wheat

Hybrinova Sa (FR)

BE FR
8 records

Noe'

Active

x Triticosecale Wittm. ex A. Camus · Triticale

Institut National de la Recherche Agronomique I.N.R.A.

HR IT
7 records

Big Boss

Active

Lolium multiflorum Lam. · Italian ryegrass

University of Florida

IT
9 records

BG Ikona 2S

Active

Triticum aestivum L. · Bread wheat

Borislav Kobiljski

BG UA
8 records

Lamberto

Active

x Triticosecale Wittm. ex A. Camus · Triticale

Z.Banaszak,M.Madra,K.Marciniak,T.Wolski,L.Brykczyńska,A.Szołkowski,B.Weiss,S.Wiśniewska, W.Brukwiński

BE CZ DE EE FR HR +6
33 records

Mulan

Active

Triticum aestivum L. · Bread wheat

Saaten-Union

BE EE HR HU LT PL +2
24 records

Skagen

Active

Triticum aestivum L. · Bread wheat

W. von Borries-Eckendorf GmbH & Co.KG

EE FI LT LU LV PL +2
23 records

Balitus

Active

Triticum aestivum L. · Bread wheat

Saatzucht Donau, A

BG EE FR HR HU LT +4
22 records

Brasetto

Active

Secale cereale L. · Rye

Peer Wilde^^^Brigitta Schmiedchen^^^Jutta Menzel

AT CZ DE DK FI LT +4
22 records

Quintus

Active

Triticum aestivum L. · Bread wheat

WIERSUM PLANTBREEDING

EE FR IE LT LU NL +2
21 records

Sw Talentro

Active

x Triticosecale Wittm. ex A. Camus · Triticale

SW Seed B.V.

CZ DE EE FR HR LT +4
23 records

Etana

Active

Triticum aestivum L. · Bread wheat

Deutsche Saatveredelung AG, D-59557 Lippstadt

EE FI HU LT LV PL +1
20 records

Triso

Active

Triticum aestivum L. · Bread wheat

I.G. Saatzucht (DE)

AT EE FR HU LT LV +3
22 records

Soissons

Active

Triticum aestivum L. · Bread wheat

SAS FLORIMOND-DESPREZ Veuve et Fils

BE ES FR HR IE IT +2
22 records

Chevignon

Active

Triticum aestivum L. · Bread wheat

SAATEN UNION RECHERCHE

BE FR HU LT LU PL +1
19 records

Arktis

Active

Triticum aestivum L. · Bread wheat

Schlieter Bernd, Busch Heinrich,

AT EE LT LV PL UA
16 records

Akratos

Active

Triticum aestivum L. · Bread wheat

Strube Research GmbH & Co. KG, D- 38387 Sollingen

EE FR HR LT SE UA
14 records

Remiko

Active

x Triticosecale Wittm. ex A. Camus · Triticale

Ewa Czerwinska

CZ DE EE FR LT LV +2
15 records

Dublet

Active

x Triticosecale Wittm. ex A. Camus · Triticale

Danko Hodowla Roslin Sp z.o.o. (PL)

CZ DE FR LT LU MT +1
16 records

Dinaro

Active

x Triticosecale Wittm. ex A. Camus · Triticale

DANKO HODOWLA| "DANKO" Hodowla Roslin Sp. z o.o.

CZ DE DK LT NL PL +1
16 records

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