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.

JACloose

Active

Rosa L. · Rose

Zary Keith W.|Thousand Oaks, CA, US

2 records

JACurnam

Active

Rosa L. · Rose

Zary Keith W.|Somis, CA

2 records

Italo

Active

Asparagus officinalis L. · Asparagus

CREA-CENTRO DI RICERCA PER L'ORTICOLTURA (CREA-OF-PON)

2 records

Intuitivo

Active

Solanum lycopersicum L. · Tomato

HM.Clause S.A.S.

3 records

Heuros

Protection expired

Heuchera L. · Coral Flower

BLOOMS NEW PLANTS LIMITED

2 records

Hendon

Terminated

Avena nuda L. · Naked oat

SW Semundo Limited (GB)

3 records

HA300

Terminated

Helianthus annuus L. · Sunflower

N.DAKOTA UNI.FARGO

2 records

Hangdown Biały

Active

Vicia faba L. var. major Harz · Broad bean

Hodowla Roslin Snowidza Sp.z.o.o

2 records

HORNET

Terminated

Triticum aestivum L. · Bread wheat

Plant Breeding International Cambridge Ltd (GB)

3 records

Hilds Neckarkönigin

Active

Phaseolus vulgaris L. · Common bean

Erfurter Samen Handelsgesellschaft mbH

2 records

Holubka odes`ka

Active

Triticum aestivum L. · Bread wheat

Parfentiev Mykhailo Hryhorovych, Rubakha Serhii Andriiovych, Reshetnikova Valentyna Semenivna, Solomonov Ruslan Viacheslavovych, Kostiuk Stanislav Vasyl`ovych, Lytvynenko Raisa Ivanivna, Ptashenchuk Oleksandr Mykytovych, Honcharuk Nina Oleksandrivna, Lytv

3 records

HERA

Application submitted

Dactylis glomerata L. · Cocksfoot

PRODANA SEED A/S

2 records

Grande

Active

Asparagus officinalis L. · Asparagus

California Asparagus Seed and Transplants, Inc. (US)

2 records

Gossip

Active

Cucumis melo L. · Melon

Nunhems Netherlands B.V.

4 records

Gladius

Active

Allium porrum L. · Leek

Poul Erik Olgaard \Henry Damm Hansen

2 records

Gudrun

Terminated

Salix x dasyclados Wimm.

Stig Larsson

2 records

Gibson

Terminated

Festuca trachyphylla (Hack.) Hack. · Hard fescue

Saatzucht Steinach GmbH & Co KG

3 records

Gold Digger

Application submitted

Phaseolus vulgaris L. · Common bean

KWS VEGETABLES B.V.

2 records

H6210

Active

Zea mays L. · Maize

Francis Glenn

3 records

Globe

Active

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

May Agro Seed Corp.(TR)

2 records

Gyros

Active

Triticum aestivum L. · Bread wheat

Institut national de recherche pour l'agriculture, l'aliment (FR)/Agri Obtentions SA (FR)

2 records

Grenada

Active

Phaseolus vulgaris L. · Common bean

Bakker Brothers Gebroeders Bakker Zaadteelt en Zaadhandel BV

3 records

Generosa

Terminated

Beta vulgaris Sugar Beet Group · Sugar beet

NOVARTIS SEEDS A.B.

2 records

GTP Lider

Terminated

Triticum aestivum L. · Bread wheat

P. Spetsov, I. Stoeva, T. Petkova, I. Iliev, V. Ivanova

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

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.