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.

Quantum II

Active

Festuca arundinacea Schreb. · Tall fescue

WRIGHTSON PAS S.A.

14 records

Fiesta 4

Active

Lolium perenne L. · Perennial ryegrass

PICKSEED WEST INC

8 records

LG Zorica

Active

Hordeum vulgare L. · Barley

Limagrain Europe S.A.S. (FR)

AT BG CZ FR HU SK

11 records

KWS Starlight

Active

Triticum aestivum L. · Bread wheat

Reiner, Bothe Erhard, Ebmeyer

EE LT LU NL UA

14 records

Trappe

Active

Triticum aestivum L. · Bread wheat

KWS Lochow

AT EE LT NL PL

10 records

Ilias

Active

Triticum aestivum L. · Bread wheat

Limagrain Europe S.A.

AT LT NL SK UA

11 records

KWS Dante

Terminated

Hordeum vulgare L. · Barley

KWS LOCHOW GMBH, DE

DE FR NL PL UA

12 records

Cubus

Active

Triticum aestivum L. · Bread wheat

Rainer Bouze

EE LT LV PL UA

15 records

KWS Spencer

Active

Triticum aestivum L. · Bread wheat

KWS Lochow

EE FI LT PL UA

12 records

LG Caruso

Active

Hordeum vulgare L. · Barley

LIMAGRAIN EUROPE

DE EE FR LT PL

11 records

Astron

Active

Triticum aestivum L. · Bread wheat

STRUBE GMBH&CO.KG

DK LT LV UA

12 records

Iride

Active

Triticum durum Desf. · Durum wheat

Tiziano Disaro

ES IT MT PT UA

12 records

Bojos

Active

Hordeum vulgare L. · Barley

PLANT SELECT, SPOL. S R.O.

AT CZ HU LT SK

11 records

ES Regata

Active

Helianthus annuus L. · Sunflower

Euralis Semences FR

BG FR IT UA

10 records

Malwinta

Active

Hordeum vulgare L. · Barley

Pajbjergfonden (DK)

DE FR LT RO

14 records

Calixo

Active

Triticum aestivum L. · Bread wheat

Secobra Saatzucht

EE FI LT LV

14 records

KWS Vermont

Active

Hordeum vulgare L. · Barley

SCHINKEL BURKHARD

DE DK PL UA

11 records

Baletka

Active

Triticum aestivum L. · Bread wheat

Ragt, F

HU PL UA

11 records

KWS Faro

Active

Hordeum vulgare L. · Barley

SARL ADRIEN MOMONT ET FILS, FR

DE FR IT UA

14 records

Victus

Active

Vicia faba L. · Broad bean

Norddeutsche Pflanzenzucht Hans-Georg Lembke KG

EE LT

12 records

Tulsa

Active

Triticum aestivum L. · Bread wheat

WIERSUM PLANTBREEDING B.V.

AT BE DK NL SE

12 records

RGT Capitoll

Active

Helianthus annuus L. · Sunflower

RAGT 2N S.A.S

FR IT SK UA

9 records

Nordika

Active

Triticum aestivum L. · Bread wheat

TOMAS NOVACEK

EE LT UA

10 records

Mariboss

Active

Triticum aestivum L. · Bread wheat

THE ABED FOUNDATION

DK EE LT LV

12 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.