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.

Caboto

Active

Triticum durum Desf. · Durum wheat

APSOVSEMENTI S.P.A.

5 records

Blasco

Active

Triticum aestivum L. · Bread wheat

CO.NA.SE SOC.COOP.AGR

5 records

BG Triamo 2S

Active

x Triticosecale Wittm. ex A. Camus · Triticale

Biogranum, Novi Sad

6 records

BG Flexa

Active

Triticum aestivum L. · Bread wheat

Biogranum, Novi Sad

5 records

Bisanzio

Active

Triticum aestivum L. · Bread wheat

Apsovsementi S.p.A., Co.Na.Se. Soc. Coop. Agr.

6 records

Bataja

Active

Triticum aestivum L. · Bread wheat

Danko Hodowla Roslin Sp.z.o.o.

6 records

Bedretto

Terminated

x Triticosecale Wittm. ex A. Camus · Triticale

RAC Station federale de recherches agronomiques de Changins (CH)

7 records

Anversa

Active

Triticum aestivum L. · Bread wheat

Apsovsementi, I

7 records

Atico

Active

Hordeum vulgare L. · Barley

Malopolska Hodowla Roslin Spolka z o.o.

5 records

Andante

Active

Triticum aestivum L. · Bread wheat

Prof. dr Borislav Kobiljski - Biogranum d.o.o., Novi sad

5 records

Antonello

Active

Triticum aestivum L. · Bread wheat

S.I.S. SOCIETA' ITALIANA SEMENTI

5 records

Aglika

Active

Triticum aestivum L. · Bread wheat

N. Tsenov, I. Doncheva, I. Stoeva, I. Panayotov, I. Todorov, K. Kostov, T. Petrova, I. Iliev, K. Malinski, I. Stoyanov, S. Mihova

5 records

Sweet Ear

Protection expired

Zea mays L. subsp. mays (Sweet Corn Group) · Sweet corn

Harris Moran Seed Co.

HU PL

3 records

R 502

Active

Zea mays L. subsp. mays (Popcorn Group) · Popcorn

CROOKHAM COMPANY

HU NL

3 records

WPB Laurine.

Active

Linum usitatissimum L. · Common flax

Wiersum Plantbreeding B.V. (NL)

5 records

Sr 2284

Active

Poa pratensis L. · Kentucky bluegrass

SEED RESEARCH OF OREGON

3 records

Yecora F 70

Active

Triticum aestivum L. · Bread wheat

SARH-INIA

4 records

SR 4420

Active

Lolium perenne L. · Perennial ryegrass

SEED RESEARCH OF OREGON

3 records

Winter Hawk

Active

Lolium multiflorum Lam. · Italian ryegrass

Oregro Seeds

4 records

PV-857

Active

Phaseolus vulgaris L. · Common bean

Pop Vriend Research B.V.

6 records

SR 4500

Active

Lolium perenne L. · Perennial ryegrass

SEED RESEARCH OF OREGON

3 records

RGT MONT BLANC

Active

Avena sativa L. · Oat

RAGT 2N S.A.S

4 records

PAVON F-76

Application submitted

Triticum aestivum L. · Bread wheat

SARH-INIA

4 records

PR 22 R 28

Protection expired

Triticum aestivum L. · Bread wheat

PIONEER HI-BRED INTERNATIONAL

4 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.