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.

Trefl

Active

x Triticosecale Wittm. ex A. Camus · Triticale

Hodowla Roslin Strzelce Sp. z.o.o Grupa IHAR (PL)

DE FR LT PL

10 records

Trigold

Protection expired

x Triticosecale Wittm. ex A. Camus · Triticale

Lochow-Petkus GmbH (DE)

CZ DE FR PL

11 records

Tiben

Active

Ribes nigrum L. · Blackcurrant

Research Institute of Pomology and Floriculture

CZ PL SK UA

15 records

Vercade

Terminated

Lolium perenne L. · Perennial ryegrass

FORCE SEEDS GMBH| Force Seeds GmbH

AT CZ DE PL

7 records

Verona

Active

Solanum tuberosum L. · Potato

UNIPLANTA| Uniplanta - Saatzucht KG

CZ DE NL PL

19 records

Trimester

Active

x Triticosecale Wittm. ex A. Camus · Triticale

LOCHOW-PETKUS

DE DK HR LT

12 records

Souleyka

Active

Hordeum vulgare L. · Barley

Nordsaat Saatzuchtgesellschaft m.b.H. (DE)

CZ DE FR PL

9 records

Spurt

Active

Trifolium pratense L. · Red clover

Oseva Uni a.s., CZ

AT CZ FR LU

9 records

Soraya

Active

Lolium perenne L. · Perennial ryegrass

Beat Boller (CH)

AT DE FR UA

11 records

SY Daxton

Active

Helianthus annuus L. · Sunflower

Syngenta Participations AG| CH

FR IT PT UA

10 records

SU Thor

Active

Secale cereale L. · Rye

HYBRO SAATZUCHT GMBH and CO KG

CZ DK PL UA

11 records

Redding

Active

Lolium perenne L. · Perennial ryegrass

DLF-Seeds A/S

AT DE DK FR

11 records

Sevilla

Active

Hordeum vulgare L. · Barley

Saatzucht Donau GmbH, Probstdorf AT

AT DE HU PL

10 records

Organa

Active

Hordeum vulgare L. · Barley

Nordic Seed A-S, DK

CZ DE DK FR

11 records

Securo

Active

x Triticosecale Wittm. ex A. Camus · Triticale

Saka Pflanzenzucht GmbH Co KG

AT CZ DE PL

9 records

Parsifal

Active

Poa pratensis L. · Kentucky bluegrass

Zelder BV (NL)

DE DK FR UA

11 records

Puzon

Active

x Triticosecale Wittm. ex A. Camus · Triticale

Danko Hodowla Roslin Sp.z.o.o.

CZ LT LU PL

12 records

Neptun

Active

Hordeum vulgare L. · Barley

Sejet Planteforaedling I,S

CZ DK PL UA

9 records

Meltra

Protection expired

Lolium perenne L. · Perennial ryegrass

Rijksstation Voor Plantenveredeling (BE)

DE DK FR IE

10 records

Loreley

Terminated

Hordeum vulgare L. · Barley

NORDSAAT SAATZUCHT

DE DK LT UA

11 records

Mamut

Active

x Triticosecale Wittm. ex A. Camus · Triticale

Danko Hodowla Roslin Sp.z.o.o.

CZ DE EE PL

12 records

LG Flynn

Active

Hordeum vulgare L. · Barley

LIMAGRAIN EUROPE

AT DE NL PL

10 records

Matthus

Active

Triticum aestivum L. · Bread wheat

STRUBE GMBH&CO.KG

HU LT UA

8 records

KWS Extase

Active

Triticum aestivum L. · Bread wheat

SARL ADRIEN MOMONT ET FILS, FR

DK FR LU NL

13 records

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Diseases

Powdery mildew 33 570
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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.