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.

ES Anthemis CLP

Active

Helianthus annuus L. · Sunflower

Euralis Semences

AT BG IT UA

10 records

Delitop

Active

Zea mays L. · Maize

Syngenta Crop Protection AG Seeds Divison

AT DE LT UA

10 records

Cisko

Protection expired

Zea mays L. · Maize

SYNGENTA SEEDS AG, CH

BG HU IT SI UA

10 records

Kingkong

Active

Triticum aestivum L. · Bread wheat

SECOBRA RECHERCHES S.A.S

FR NL PL SK UA

12 records

Tervel

Active

Triticum aestivum L. · Bread wheat

Todor K. Gubatov

BG ES HR HU RO

10 records

Gordo

Active

Lolium multiflorum Lam. · Italian ryegrass

Feldsaaten Freudenberger (DE)

DE IE NL SI

12 records

RGT Kreuzer

Active

Triticum aestivum L. · Bread wheat

RAGT 2N S.A.S

DK NL PL SE UA

11 records

Lisanna KWS

Active

Beta vulgaris Sugar Beet Group · Sugar beet

KWS SAAT SE & CO.KGAA

BE DE DK ES NL SE

7 records

KWS Donovan

Active

Triticum aestivum L. · Bread wheat

Nina Pfeiffer

AT LT PL UA

10 records

Kranich

Protection expired

Triticum aestivum L. · Bread wheat

Syngenta Seeds

DK LT LV PL SE

12 records

Wpb Mylo

Active

Triticum aestivum L. · Bread wheat

Wiersum Plantbreeding B.V.

EE LT NL PL

10 records

Aurelius

Active

Triticum aestivum L. · Bread wheat

Saatzucht Donau GmbH & Co.KG

AT HU SK UA

9 records

Arena

Protection expired

Phaseolus vulgaris L. · Common bean

Nunhems Zaden BV (NL)

CZ DE FR HU NL SK

9 records

Triagent

Active

x Triticosecale Wittm. ex A. Camus · Triticale

Saatzucht Donau GmbH & Co.KG

AT CZ HR LT UA

11 records

Traminer

Protection expired

Hordeum vulgare L. · Barley

Nordsaat Saatzuchtgesellschaft mbH

AT CZ DE LT PL

11 records

Terno

Active

Pisum sativum L. · Pea

Selgen a.s., CZ

AT CZ FR PL UA

10 records

Sirius

Protection expired

Lolium perenne L. · Perennial ryegrass

Norddeutsche Pflanzenzucht Hans-Georg Lembke KG

AT CZ DE DK SK

9 records

Senu Pajbjerg

Active

Festuca pratensis Huds. · Meadow fescue

DLF Seeds A/S

DK ES LT LV SK

9 records

RGT Kilimanjaro

Active

Triticum aestivum L. · Bread wheat

RAGT 2N S.A.S

FI FR LT PL

11 records

Pegasus

Active

Poa pratensis L. · Kentucky bluegrass

DLF-TRIFOLIUM| DLF-Trifolium A/S

AT CZ DE DK EE

9 records

Moschus

Active

Triticum aestivum L. · Bread wheat

Strube-Dieckmann GmbH&Co.KG

EE LU PL UA

11 records

Pontiform

Active

Triticum aestivum L. · Bread wheat

Strube Research GmbH & Co. KG, STRUBE D and S GMBH

EE LT PL UA

9 records

Minello

Terminated

Secale cereale L. · Rye

Peer Wilde^^^Brigitta Schmiedchen^^^Jutta Menzel

AT DE DK PL SE

9 records

Orcade

Active

Hordeum vulgare L. · Barley

Nordic Seeds A/S

CZ DE DK FR IE

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.