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.

Maestro

Active

Daucus carota L. · Carrot

Vilmorin, F

CZ FR HR HU PL SK

16 records

Juliette

Active

Solanum tuberosum L. · Potato

GERMIMCOPA BREEDING (GERMICOPA SAS)

DE FR HU PL SK

21 records

LG Belcanto

Active

Hordeum vulgare L. · Barley

LIMAGRAIN EUROPE

CZ DE EE FR LT NL +3

19 records

Sw Talentro

Active

x Triticosecale Wittm. ex A. Camus · Triticale

SW Seed B.V.

CZ DE EE FR HR LT +4

23 records

KWS Chrissie

Active

Hordeum vulgare L. · Barley

KWS LOCHOW GMBH, DE

CZ DE DK EE FI FR +4

22 records

KWS Tayo

Active

Secale cereale L. · Rye

KWS Lochow, D

AT CZ DE DK EE LU +2

21 records

Wintmalt

Protection expired

Hordeum vulgare L. · Barley

Lochow-Petkus GmbH (DE)

CZ DE EE FR LT LV +3

19 records

Fontane

Active

Hordeum vulgare L. · Barley

Sejet Planteforµdling I/S

AT CZ DE DK EE FI +5

17 records

Titania

Active

Ribes nigrum L. · Blackcurrant

Tamas Pal

CZ DE DK HU LT NL +3

26 records

Bordeaux

Active

Hordeum vulgare L. · Barley

Nordic Seed A-S, DK

AT CZ DE DK EE FR +4

20 records

Paustian

Active

Hordeum vulgare L. · Barley

Sejet Planteforµdling I/S

DE DK EE FR IE LT +3

21 records

Evolo

Active

Secale cereale L. · Rye

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

AT DE DK EE FI LT +3

20 records

SU Arvid

Active

Secale cereale L. · Rye

Saaten-Union

CZ DE DK EE LT PL +2

18 records

Bastion

Protection expired

Lolium perenne L. · Perennial ryegrass

Mommersteeg International BV (NL)

AT DE DK ES FR IE +2

16 records

Accordine

Active

Hordeum vulgare L. · Barley

Saaten-Union

CZ DE FI LT LU PL +2

19 records

Condesa

Active

Lolium perenne L. · Perennial ryegrass

VANDERHAVE GRASSES B.V.

AT DE DK ES FR IE +2

20 records

ES Novamis CL

Active

Helianthus annuus L. · Sunflower

Euralis Semences, Mondonville FR

BG CZ HR HU IT RO +2

16 records

Limagie

Active

Poa pratensis L. · Kentucky bluegrass

FEUERSTEIN ULF / STELLING DIETER

AT DE DK EE LT LU +1

18 records

Kentaur

Active

Lolium perenne L. · Perennial ryegrass

Plant Breeding Hladke Zivotice, s.r.o. (CZ)

AT CZ DE FR LU PL +1

18 records

Julia

Active

Poa pratensis L. · Kentucky bluegrass

Van Engelen Zaden B.V.

CZ DE DK FI NL SE +1

19 records

Intensiv

Active

Dactylis glomerata L. · Cocksfoot

Institutul National de Cercetare-Dezvoltare pentru Cartof s

AT CZ DE HR LU PL +1

15 records

KWS Serafino

Active

Secale cereale L. · Rye

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

DE DK EE FI LU PL

16 records

Pardus

Active

Festuca pratensis Huds. · Meadow fescue

Forschungsanstalt Agroscope Reckenholz-Tänikon ART

AT DE FI LU SI UA

16 records

Red Lady

Active

Solanum tuberosum L. · Potato

Solana Agrar Proukte GmBH & Co.

CZ GR HR LT UA

16 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.