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.

Caprice

Active

Vicia faba L. · Broad bean

Werner Horn

4 records

Dochrypust

Active

Chrysanthemum L. · Chrysanthemum

Dümmen Group B.V.

3 records

Copper

Active

Triticum aestivum L. subsp. spelta (L.) Thell. · Spelt

Getreidezüchtung Peter Kunz

4 records

Bolton

Active

Hordeum vulgare L. · Barley

Claus Einfeldt

4 records

Blue Fountain

Active

Malva sylvestris L.

Dick Degenhardt

3 records

Cambrena

Active

Triticum aestivum L. · Bread wheat

Dario Fossati Agroscope

5 records

Beluga

Active

Triticum aestivum L. · Bread wheat

SENOVA LTD

4 records

AUSCP17117

Active

Rosa L. · Rose

David Austin Roses

4 records

Bond

Active

Lolium multiflorum Lam. · Italian ryegrass

DLF Seeds A/S

4 records

Arlington

Active

Triticum aestivum L. · Bread wheat

PIONEER OVERSEAS CORPORATION

5 records

Autumn Gold

Active

Helianthus salicifolius A. Dietr. · Willow-leaf Sunflower

Trees Scott C

4 records

Acabo

Active

Triticum aestivum L. · Bread wheat

Agroscope / DSP Delley semences et plantes SA

4 records

Arbola

Active

Triticum aestivum L. · Bread wheat

Aldo Fossati Agroscope / Dario Fossati Agroscope / Hans Winzeler Agroscope / Michael Winzeler Agroscope / W. Saurer Agroscope

4 records

Arpitteta

Active

Triticum aestivum L. · Bread wheat

Agroscope (Changins)

4 records

Alchemy

Active

Triticum aestivum L. · Bread wheat

Nickerson International Research S.N.C.

4 records

SU Hystoric

Active

Triticum aestivum L. · Bread wheat

ASUR Plant Breeding S.A.S

4 records

Kalbex

Active

Triticum aestivum L. · Bread wheat

Selgen, a.s. Vyzkumne centrum SELTON, s.r.o.

HU UA

5 records

Brawura

Active

Triticum aestivum L. · Bread wheat

Danko Hodowla Roslin Sp.z.o.o.

LT PL

4 records

Delta

Active

Zea mays L. · Maize

Abelmasov, Oleksii Bebekh, Alina Plotka, Vitalii Olizko, Oleksii Bernatskyi, Maksym Dziubetskyi, Borys Bodenko, Natalia Bondar, Tetiana Haidash, Oleksandr Cherchel, Vladyslav

IT UA

4 records

Trio

Active

Triticum aestivum L. · Bread wheat

NABOKOV GENNADIJ DMITRIEVICh / PUChKOV YuRIJ MIHAJLOVICh / BESPALOVA LYuDMILA ANDREEVNA / SOLYaREK TAISIYa FEDOROVNA / ZINOVKINA OL'GA ALEKSANDROVNA / KUDRYaShOV IGOR' NIKOLAEVICh / ABLOVA IRINA BORISOVNA / FILOBOK LEONTIJ PETROVICh / BUKREEVA GALINA IVAN

ES FR

5 records

Wasmo

Terminated

Triticum aestivum L. · Bread wheat

ABED FONDEN

4 records

Radegast

Active

Hordeum vulgare L. · Barley

PLANT SELECT, spol. s r.o. (CZ)

CZ SK

5 records

PR39H32

Terminated

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

PIONEER HI-BRED INTERNATIONAL

FR PL

4 records

Meteor

Active

Helianthus annuus L. · Sunflower

SEMENCES NICKERSON S.A.

ES IT

3 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.