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.

De Mazères

Terminated

Allium cepa L. var. cepa · Onion

Domaine Public (FR)

2 records

DRIVER R

Active

Zea mays L. subsp. mays (Sweet Corn Group) · Sweet corn

Jen Marzu

3 records

DRIVER

Active

Zea mays L. · Maize

Edward Snyder

3 records

Dorondon

Active

Triticum durum Desf. · Durum wheat

Genetica y Gestion S.L.

3 records

Don Jaime

Active

Triticum durum Desf. · Durum wheat

AGROVEGETAL, S.A.

3 records

Don Rafael

Terminated

Triticum durum Desf. · Durum wheat

AGROVEGETAL, S.A.

3 records

Dollar

Active

Helianthus annuus L. · Sunflower

Rustica Prograin Genetique SA (FR)

2 records

Dallas

Active

Spinacia oleracea L. · Spinach

Pop Vriend Research B.V.

2 records

Dobrodiika odeska

Active

Triticum aestivum L. · Bread wheat

Ihnatovskyi Oleksandr Oleksandrovych, Reshetnikova Valentyna Semenivna, Alieksieienko IEvhenii Viktorovych, Lytvynenko Raisa Ivanivna, Holub IEvheniia Anatoliivna, Honcharuk Nina Oleksandrivna, Lytvynenko Mykola Antonovych,

3 records

Diuk

Active

Triticum aestivum L. · Bread wheat

Lyfenko Lina Semenivna, Babaiants Lazar Tihranovych, Dorofeieva Zinaida Dmytrivna, Rodenko Halyna Anatoliivna, Narhan Tetiana Pavlivna, Fedchenko Volodymyr Pavlovych, Yeryniak Mykola Ivanovych, Lyfenko Savelii Pylypovych,

3 records

Criterio

Active

Triticum aestivum L. · Bread wheat

Saatzucht Donau GmbH & Co.KG

3 records

Crisbo

Terminated

Vicia faba L. var. minuta (hort. ex Alef.) Mansf. · Tick Bean

KWS LOCHOW GMBH Herrn Dr. Erhard Ebmeyer / Ulrike Ellis in Fa. KWS LOCHOW GMBH

3 records

Darcie

Application submitted

Hordeum vulgare L. · Barley

SAATZUCHT JOSEF BREUN GMBH and CO.KG

3 records

DANCER

Terminated

Chrysanthemum L. · Chrysanthemum

WALTER H. JESSEL, JR. & WILLIAM E. DUFFETT

2 records

Delle virtu'

Active

Brassica rapa L. var. rapa (L.) Thell. · Turnip

2 records

Colter

Active

Triticum aestivum L. · Bread wheat

Montana Agricultural Experiment Station

2 records

Decade

Active

Triticum aestivum L. · Bread wheat

Montana Agricultural Experiment Station

2 records

Coco

Active

Solanum tuberosum L. · Potato

Saka Pflanzenzucht GmbH Co KG

3 records

Cosaque

Terminated

Avena sativa L. · Oat

Serasem S.A.S.

3 records

Dalton

Active

Phaseolus vulgaris L. · Common bean

Syngenta Crop Protection AG

3 records

Dalmateo

Active

x Triticosecale Wittm. ex A. Camus · Triticale

Hodowla Roslin Strzelce Sp z.o.o. Grupa IHAR

3 records

CIB 333

Terminated

Hordeum vulgare L. · Barley

SEMILLAS BATLLE, S.A.

3 records

CF99007

Active

Triticum aestivum L. · Bread wheat

Agri Obtentions SA (FR)/Institut National de la Recherche Agronomique (FR)

3 records

Cloud

Active

Poa pratensis L. · Kentucky bluegrass

Grassland Oregon

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.