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.

Pirol

Active

Lolium x hybridum Hausskn. · Hybrid ryegrass

Saatzucht Steinach GmbH & Co KG

AT DE DK LT LU PL

12 records

Lisuna

Application submitted

Lolium perenne L. · Perennial ryegrass

LUETKE| Dr. Ernst Luetke Entrup / MICHELMANN| Ing. agr. Guenter Michelmann

DE EE HR LV PL UA

13 records

Ludwig

Active

Triticum aestivum L. · Bread wheat

SAATZUCHT DONAU GES.M.B.H. & COKG

AT FR HR HU PL SI

15 records

Malz

Active

Hordeum vulgare L. · Barley

Svacina Petr

CZ HR HU NL SK UA

14 records

Lumaco

Active

x Triticosecale Wittm. ex A. Camus · Triticale

Lantmannen SW Seed BV (NL)

AT DE EE FR LT LU

15 records

Lg Alvarez

Active

Triticum aestivum L. · Bread wheat

Limagrain Europe, F

BG ES FR HU IT RO

18 records

Lanetto

Active

x Triticosecale Wittm. ex A. Camus · Triticale

Lantmännen SW Seed B. V.

CZ DE EE FI LT LU

13 records

LG Abilene

Active

Triticum aestivum L. · Bread wheat

Limagrain Europe SA (FR)

BG FR HU RO SK UA

14 records

Korenbon

Active

Rosa L. · Rose

WILHELM KORDES, T-H., M.

DE DK ES FR IT NL

9 records

Faxe

Active

Triticum aestivum L. · Bread wheat

Sejet Planteforaedling I,S

EE LT PL SE UA

13 records

LG Arnova

Active

Triticum aestivum L. · Bread wheat

Limagrain Europe, F

BG FR IT SK UA

16 records

Feedway

Active

Hordeum vulgare L. · Barley

Nordic Seed A/S

DK EE FI LT PL SE

14 records

KWS Detektor

Active

Secale cereale L. · Rye

KWS Lochow

AT DE DK EE FI PL

14 records

KWS Collada

Active

Triticum aestivum L. · Bread wheat

KWS Lochow

AT EE LT NL PL UA

10 records

Jivet

Active

Lolium multiflorum Lam. · Italian ryegrass

Plant Breeding Hladke Zivotice

DE SK

16 records

Cedrico

Active

x Triticosecale Wittm. ex A. Camus · Triticale

Lantmannen SW Seed BV (NL)

CZ DE EE FR LT LU

14 records

Humber

Active

Beta vulgaris Sugar Beet Group · Sugar beet

Seed Company Lion Seeds Ltd

DK ES LT NL SE UA

10 records

Armada

Active

Triticum aestivum L. · Bread wheat

ROTHWELL PLANT BREEDERS (GB)

DK ES FR IE PL

16 records

Sundance

Active

Phaseolus vulgaris L. · Common bean

Vilmorin-Mikado S.A.S.

FR HR HU NL PL

12 records

Ténor

Active

Triticum aestivum L. · Bread wheat

Unisigma GIE Recherche et Selection (FR)

FR HR IT PT UA

19 records

Barspectra

Application submitted

Lolium multiflorum Lam. var. westerwoldicum Wittm. · Westerwolds Ryegrass

Barenbrug Holland BV, 6501 BH Nijmegen

CZ DK EE FR PL SE

10 records

Wilma

Active

Festuca rubra L. · Red fescue

W WEIBULL

DE DK FR PL SE

17 records

Pollanum

Active

Lolium multiflorum Lam. var. westerwoldicum Wittm. · Westerwolds Ryegrass

Euro Grass Breeding GmbH & Co. KG, D-59557 Lippstadt

EE FI LU SI UA

10 records

Sydney

Active

Hordeum vulgare L. · Barley

SAATZUCHT STRENG-ENGELEN GMBH&CO. KG

DE EE LT LU PL

10 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.