Diseases

Rust

Pucciniales

Rust is a group of dangerous fungal diseases manifesting as pustules on plant organs. The disease significantly reduces yield by disrupting photosynthesis and increasing transpiration.

Mentioned in descriptions 14 859 varieties reference book.

Rust is a collective name for a group of fungal diseases whose pathogens belong to the order Pucciniales. Outwardly, the disease manifests as the formation of pustules on leaves, stems, and other parts of plants—cushions of orange, brown, or black color containing pathogen spores.

Active development of the disease depends on weather conditions, primarily high humidity in the form of dew, fog, or precipitation, and specific temperature ranges unique to each rust species. Additional risk factors include crop density, the presence of plant residues, and the proximity of alternate hosts necessary for the development of certain fungal species.

The evaluation of cultivar resistance in variety trials is carried out under natural or artificial infectious backgrounds during the milk stage by recording the percentage of infection on the flag leaf surface. Based on the data obtained, accessions are classified as immune, resistant, or susceptible, and molecular analysis methods are used to identify resistance genes, such as Lr34.

Sources10

Breakdown by crop

Rust of common wheat 1 722 Barley rust 466 Rust on perennial ryegrass 377 Sunflower rust 362 Triticale rust 294 Rust of Durum Wheat 268 Oat crown rust 182 Rust of sweet corn 157 Rust of rye 116 Bean rust 114 Rose Rust 114 Rust of Kentucky Bluegrass 110 Rust of Italian ryegrass 109 Apple Rust 106 Rust of tall fescue 104 Maize rust 77 Pear Rust 70 Rust of Italian Ryegrass 70 White Rust of Chrysanthemum 59 Rust of sugar beet 59 Rust on Black Currant 52 Leek Rust 52 Rust of Faba Bean 39 Rust of Faba Bean 38

Found in these crops

Bread wheat 1 739 Barley 468 Perennial ryegrass 378 Sunflower 368 Triticale 295 Durum wheat 269 Oat 183 Sweet corn 158 Rye 116 Common bean 115 Rose 114 Kentucky bluegrass 110

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.

Belaviso

Terminated

Triticum aestivum L. · Bread wheat

Andre PICHOT (FR)

2 records

Beloruskij golozernyj

Protection expired

Avena nuda L. · Naked oat

Baltarusijos žemdirbystės ir pašarų institutas

1 record

BROCAL

Terminated

Vicia faba L. var. major Harz · Broad bean

ETSIA -CORD./CUBERO

1 record

BC TANJA

Withdrawn

Triticum aestivum L. · Bread wheat

Bc Institut d.d. Zagreb (HR)

1 record

Blanc de Beaumont

Terminated

Allium sativum L. · Garlic

Domaine Public (FR)

1 record

Ben Tirran WBS

Terminated

Ribes nigrum L. · Blackcurrant

Gospodarstwo Ogrodnicze Wiesław Błocki

1 record

Bőzödi alakor

Application submitted

Triticum monococcum L. · Einkorn wheat

Vörös Géza, Héreg

1 record

BOELARE

Terminated

Populus L. · Poplar

AMINAL-INSTITUUT BOSBOUW EN WILDBEHEER E.V.

1 record

Boryna

Terminated

Avena sativa L. · Oat

Hodowla Roślin Borów sp. z o.o.

3 records

Baron

Application submitted

Rubus idaeus L. · Red raspberry

Niwa Hodowla Roślin Jagodowych sp. z o.o.

2 records

Bera Hardy ISK

Active

Pyrus communis L. · European pear

Instytut Ogrodnictwa - Państwowy Instytut Badawczy

1 record

Ben Lomond WIL

Terminated

Ribes nigrum L. · Blackcurrant

Gospodarstwo Ogrodnicze Jerzy Wilczewski

1 record

Beltoise

Application submitted

Lolium multiflorum Lam. ssp. italicum (A. Br.) Volkart · Italian ryegrass

DLF Seeds A-S, DK

1 record

Bohdana

Active

Triticum aestivum L. · Bread wheat

Lebiedieva Halyna Danylivna, Chebakov Mykola Petrovych, Shelepov Volodymyr Vasyl`ovych, Vlasenko Volodymyr Anatoliiovych, Ulich Oleksandr Leonidovych, Artemchuk Iryna Petrivna, Lohvynenko Valentyna Fedorivna, Morhun Volodymyr Vasylovych,

2 records

Biskup Jordan

Terminated

Rosa L. · Rose

Stanisław Żyła

1 record

Barnova

Terminated

Festuca trachyphylla (Hack.) Hack. · Hard fescue

BARENBRUG HOLLAND| Barenbrug Holland B.V. (Variety Administration)

1 record

Barlaunch

Application submitted

Lolium x hybridum Hausskn. · Hybrid ryegrass

BARENBRUG HOLLAND

1 record

BEEFBULDER III

Active

Lolium multiflorum Lam. · Italian ryegrass

GAPP Semillas SA

1 record

BA 9436

Terminated

Lolium perenne L. · Perennial ryegrass

P.BREED.INST.WALES

1 record

Beainesza

Terminated

Rosa L. · Rose

Beate Wilczynski

1 record

Black Forest

Terminated

Triticum aestivum L. subsp. spelta (L.) Thell. · Spelt

KLING| Dr. Christoph Kling in Universitaet Hohenheim - Landessaatzuchtanstalt -

2 records

BB BED 1097

Application submitted

Phaseolus vulgaris L. · Common bean

Bakker Brothers Gebroeders Bakker Zaadteelt en Zaadhandel BV

2 records

Barberousse

Terminated

Hordeum vulgare L. · Barley

Serasem, FR

2 records

Asedo

Active

Helianthus annuus L. · Sunflower

Tovarystvo z obmezhenoiu vidpovidalnistiu "KMK AHRO"

2 records

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Diseases

Powdery mildew 33 570
Fusarium wilt and blight 29 887
Viral mosaic diseases 22 022
Downy mildew 16 384
Leaf spot diseases 15 926
Verticillium wilt 12 175
Scab 12 064
Grey mold 7 316

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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.