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.

Gemini

Active

Lolium multiflorum Lam. · Italian ryegrass

Prof. Dr. ir. Dirk Reheul c/o Universität Gent - Afd. Planten- teelt en Plantenveredeling

BE DE IE

12 records

Gemini

Active

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

Feldsaaten Freudenberger GmbH&Co.KG

BE PL SI

5 records

Hyclick

Active

Triticum aestivum L. · Bread wheat

Saaten Union Recherche (FR)

BE FR

8 records

Hybiza

Active

Triticum aestivum L. · Bread wheat

Saaten Union Recherche SARL, Estrées-Saint -Denis FR

FR HU

6 records

ES Rosa

Protection expired

Helianthus annuus L. · Sunflower

Euralis Semences FR

FR IT SK

6 records

ES Boston SU

Active

Helianthus annuus L. · Sunflower

Euralis Semences

BG RO UA

7 records

ES Agraris CLP

Active

Helianthus annuus L. · Sunflower

Euralis Semences

BG SK UA

6 records

Elison

Active

Avena sativa L. · Oat

Saatzucht Edelhof

AT CZ LU

7 records

Durfort

Active

Triticum durum Desf. · Durum wheat

Farmers Marketing Corporation

ES FR IT

7 records

Casimir

Protection expired

Festuca pratensis Huds. · Meadow fescue

Barenbrug Holland B.V.

AT DE RO

5 records

Etela

Active

Triticum aestivum L. · Bread wheat

PLANT SELECT SPOT S.R.O.

SK UA

9 records

Cremona

Active

Hordeum vulgare L. · Barley

Saatzucht Donau GmbH & Co.KG

AT PL UA

7 records

Brindur

Terminated

Triticum durum Desf. · Durum wheat

Groupement Agricole Essonnois (FR)

ES FR IT

7 records

Catamaran

Terminated

Triticum aestivum L. · Bread wheat

LIMAGRAIN NEDERLAND

DK FR NL

7 records

Candore

Active

Lolium perenne L. · Perennial ryegrass

INAKTIV SA Carneau Frères Eurogazon

DE FR NL

7 records

Edvins

Active

Triticum aestivum L. · Bread wheat

Vija Strazdina, Maija Ceraukste, SPP State Stende Cereals Breeding Institute

EE LT LV

8 records

Brocken

Active

Triticum aestivum L. · Bread wheat

Saatzucht Bauer GmbH & Co KG

AT EE

6 records

Astoncrusader

Active

Lolium x hybridum Hausskn. · Hybrid ryegrass

EURO GRASS Breeding GmbH & Co KG, DE

DE FR LU

7 records

Buzzer

Active

Hordeum vulgare L. · Barley

SECOBRA RECHERCHES S.A.S

FR SK UA

7 records

Burrma CLP

Active

Helianthus annuus L. · Sunflower

Limagrain Europe SA (FR)

BG IT UA

7 records

Bonjour

Active

x Triticosecale Wittm. ex A. Camus · Triticale

LEMAIRE DEFFONTAINES S.A.S.

DE FR IT

7 records

Creso

Active

Triticum durum Desf. · Durum wheat

UNIVERSIDAD DE BOLOGNA

ES FR IT

6 records

Alambra CS

Active

Helianthus annuus L. · Sunflower

Pierre GARRAUD

IT RO UA

6 records

Antonica KWS

Active

Beta vulgaris Sugar Beet Group · Sugar beet

KWS SAAT SE&CO.KGaA, DE

BE DE FR

5 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

All terms →

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.