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

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 Celery 16 Spelt 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.

Incanto

Active

Triticum durum Desf. · Durum wheat

CO.NA.SE SOC.COOP.AGR

5 records

Impetus

Active

x Triticosecale Wittm. ex A. Camus · Triticale

Danko Hodowla Roslin Sp.z.o.o.

6 records

Giulio

Active

Triticum durum Desf. · Durum wheat

S.I.S. SOCIETA' ITALIANA SEMENTI

5 records

Furio Camillo

Active

Triticum durum Desf. · Durum wheat

S.I.S. SOCIETA' ITALIANA SEMENTI

5 records

Egeo

Active

Triticum durum Desf. · Durum wheat

Societa Produttori Sementi S.p.A

5 records

Dyzma

Active

x Triticosecale Wittm. ex A. Camus · Triticale

Danko Hodowla Roslin Sp.z.o.o.

7 records

Don Matteo

Active

Triticum durum Desf. · Durum wheat

REGAL SEMENTI SRL

5 records

Dankowskie Skand

Active

Secale cereale L. · Rye

Danko Hodowla Roslin Sp.z.o.o.

6 records

Blasco

Active

Triticum aestivum L. · Bread wheat

CO.NA.SE SOC.COOP.AGR

5 records

Bisanzio

Active

Triticum aestivum L. · Bread wheat

Apsovsementi S.p.A., Co.Na.Se. Soc. Coop. Agr.

6 records

Bedretto

Terminated

x Triticosecale Wittm. ex A. Camus · Triticale

RAC Station federale de recherches agronomiques de Changins (CH)

7 records

Anversa

Active

Triticum aestivum L. · Bread wheat

Apsovsementi, I

7 records

Abava

Active

Hordeum vulgare L. · Barley

TIMULE GENOVEFA YaZEPOVNA / STRUMLE ZEL'MA IVANOVNA / VIKSNE VELTA KARLOVNA / KUDE RAISA MIHAJLOVNA

5 records

Winter Hawk

Active

Lolium multiflorum Lam. · Italian ryegrass

Oregro Seeds

4 records

FD 13105

Active

Triticum aestivum L. · Bread wheat

FLORIMOND DESPREZ VEUVE ET FILS

ES IT

2 records

Vezha myronivs'ka

Active

Triticum aestivum L. · Bread wheat

VLASENKO VOLODYMYR, KYRYLENKO VIRA, ZAIMA OLEKSII, YURCHENKO TETIANA, KHOMENKO SVITLANA, HUMENIUK OLEKSANDR, DUBOVYK NATALIIA, VOLOHDINA HALYNA, ZAMLILA NINA, DEMYDOV OLEKSANDR

3 records

Yavaros C-79

Active

Triticum durum Desf. · Durum wheat

SARH-INIA

3 records

Perlyna Odes'ka

Active

Triticum durum Desf. · Durum wheat

Nibelenchuk Svitlana Fedorivna, Nesterova Nataliia Havrylivna, Kotelenets` Olena Hryhorivna, Vasyliev Oleksii Anatoliiovych, Parfentiev Mykhailo Hryhorovych, Albul Anatolii Oleksiiovych, Lytvynenko Mykola Antonovych, Palamarchuk Anatolii Ivanovych,

2 records

Estafeta myronivs'ka

Active

Triticum aestivum L. · Bread wheat

BLYZNIUK BOHDANA, DUBOVYK NATALIIA, HUDZENKO VOLODYMYR, ZAMLILA NINA, KYRYLENKO VIRA, HUMENIUK OLEKSANDR, KOCHMARSKYI VALENTYN, DERHACHOV OLEKSANDR, DEMYDOV OLEKSANDR, PIRYCH ALINA

3 records

Charodiika bilotserkivs'ka

Active

Triticum aestivum L. · Bread wheat

Dubova Oksana Anatoliivna, Chaika Anatolii Mykolaiovych, Burdeniuk-Tarasevych Larysa Antonivna,

3 records

Schedrist` odes`ka

Active

Triticum aestivum L. · Bread wheat

Babaiants Lazar Tihranovych, Holub IEvheniia Anatoliivna, Honcharuk Nina Oleksandrivna, Lytvynenko Mykola Antonovych, Lytvynenko Raisa Ivanivna, Reshetnikova Valentyna Semenivna, Rubakha Serhii Andriiovych, Solomonov Ruslan Viacheslavovych, Parfentiev Myk

3 records

Hratsiia myronivs'ka

Active

Triticum aestivum L. · Bread wheat

SIROSHTAN ANDRII, MURASHKO LIUDMYLA, VOLOHDINA HALYNA, ZAMLILA NINA, KOLOMIIETS LIDIIА, HUMENIUK OLEKSANDR, DERHACHOV OLEKSANDR, DEMYDOV OLEKSANDR, KOCHMARSKYI VALENTYN, KYRYLENKO VIRA

3 records

Aurora

Active

Vaccinium corymbosum L. · Highbush blueberry

NL UA

14 records

Fasan

Protection expired

Triticum aestivum L. · Bread wheat

DK LV SK

8 records

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Text source

This summary is compiled from the publications listed in the sources and verified by an editor. It contains no legally significant information; it provides agronomic context for registry data rather than the registry data itself.