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.

Rasant

Active

Phleum pratense L. · Timothy grass

SUDDEUTSCHE SAATZUCHT-UND

DE HR LU SI

10 records

Pizza

Active

Dactylis glomerata L. · Cocksfoot

DLF-TRIFOLIUM DANSK PLANTEFORAEDLING

EE FR IT NL

9 records

Maxima 1

Active

Festuca rubra L. · Red fescue

Innoseeds bv (NL)

DE DK FR HR

10 records

Meradonna

Active

Lolium perenne L. · Perennial ryegrass

Prof. Dr. ir. Dirk Reheul c/o Universität Gent - Afd. Planten- teelt en Plantenveredeling

BE DE DK PL

12 records

Justus

Active

Dactylis glomerata L. · Cocksfoot

University of Missouri

DE EE ES IT

9 records

KWS Amadora

Active

Hordeum vulgare L. · Barley

KWS Lochow

AT CZ SK UA

11 records

LG Armstrong

Active

Triticum aestivum L. · Bread wheat

Limagrain Europe, F

BG FR HU RO

12 records

Leandra

Active

Hordeum vulgare L. · Barley

Saatzucht Josef Breun GmbH & Co.KG (DE)

AT DE FR LT

13 records

KWS Eternel

Active

Triticum aestivum L. · Bread wheat

KWS Momont, F

FR HR IT SK

11 records

KWS Joyau

Active

Hordeum vulgare L. · Barley

KWS Momont, F

FR IE IT LU

12 records

Hipast

Active

x Festulolium Aschers. et Graebn. · Festulolium

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

CZ DK FR NL

14 records

Felopa

Active

x Festulolium Aschers. et Graebn. · Festulolium

Poznanska Hodowla Roslin

DE DK PL SE

13 records

Indiana

Active

Lolium perenne L. · Perennial ryegrass

LIMAGRAIN VERNEUIL HOLDING

BE DE FR NL

15 records

Helltop

Active

Secale cereale L. · Rye

Nordic Seed Germany

DE FI LU UA

11 records

ES Florimis

Active

Helianthus annuus L. · Sunflower

Mr. Zhan-Liuk Madeuf

BG FR IT UA

10 records

Greenmile

Active

Festuca rubra L. · Red fescue

Top Green (FR)

DE DK FR UA

12 records

ES Monalisa

Active

Helianthus annuus L. · Sunflower

LIDEA FRANCE SAS

AT CZ FR UA

9 records

Cerbinetta

Active

Hordeum vulgare L. · Barley

Claus Einfeldt

AT FI SK UA

11 records

Barezane

Terminated

Lolium perenne L. · Perennial ryegrass

Barenbrug Holland BV, 6501 BH Nijmegen

DE NL PL SK

10 records

ES Balistic CL

Active

Helianthus annuus L. · Sunflower

Euralis Semences FR

BG IT SK UA

10 records

Canyon

Active

Avena sativa L. · Oat

Nordsaat Saatzuchtgesellschaft mbH

AT CZ DE DK

10 records

Alcantara

Active

Triticum aestivum L. · Bread wheat

Limagrain Europe, F

BG FR HU RO

12 records

Asterix

Active

Festuca arundinacea Schreb. · Tall fescue

Pickseed West Inc (US)

CZ FR PL SK

12 records

Treposno

Active

Dactylis glomerata L. · Cocksfoot

Schuetzel Joachim

DE SI UA

11 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.