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Diseases

Maize Smut

Zea mays L. subsp. mays (Maize Group)

Maize smut diseases are represented by common smut (Ustilago maydis) and head smut (Sporisorium reilianum). These diseases affect reproductive and vegetative organs, causing the formation of galls or the deformation of ears and tassels.

In the reference 300 varieties crop Maize, where this is mentioned in the description.

Common smut, caused by the fungus Ustilago maydis, manifests as the formation of galls on any above-ground part of the plant, including stems, leaves, and ears. The pathogen does not spread systemically; therefore, each growth is the result of a local infection in which tissues are filled with a black mass of teliospores.

Head smut, caused by Sporisorium reilianum, primarily affects the reproductive organs. The ears and tassels become deformed, taking on a pear-like shape, and upon maturation, they turn into a black, powdery mass, which is accompanied by general growth suppression of the plant.

The maize and Ustilago maydis pathosystem is characterized by a lack of rigid race specificity, and crop resistance is polygenic in nature. Breeding programs do not identify specific resistance genes; therefore, susceptibility is assessed based on scoring scales during testing in infection nurseries.

General information about the subject — on the page Smut.

Sources8

Varieties of Maize mentioned in the description

Selection based on the description text, not on official evaluation: these data are absent from registers. For specific variety details, please refer to its profile.

LG 22-22

Terminated

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

Limagrain Genetics Grandes Cultures SA (FR)

BE CZ FR PL
5 records

LG 22-15

Terminated

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

SICA L. G. SERVICES (FR)

BE FR SE
5 records

LG 3267

Terminated

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

Limagrain Genetics Grandes Cultures SA (FR)

BE FR PL
5 records

NK Cooler

Protection expired

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

Syngenta Crop Protection AG, CH

BE CZ FR NL PL
6 records

Clarica

Protection expired

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

PIONEER HI-BRED INTERNATIONAL

CZ ES FR HR PL
8 records

Oldham

Terminated

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

SYNGENTA SEEDS AG, CH

CZ FR PL
5 records

NK Nekta

Protection expired

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

Syngenta Crop Protection AG

BE CZ NL PL
5 records

Nerissa

Terminated

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

SYNGENTA SEEDS AG, CH

BE CZ FR NL
5 records

SY Energetic

Active

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

Syngenta Participations AG| CH

BE CZ FR NL
5 records

LG31224

Active

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

LIMAGRAIN EUROPE

BE FR NL PL
5 records

Genialis KWS

Active

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

KWS SAAT SE & CO.KGAA

BE CZ NL PL
5 records

NK Ravello

Protection expired

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

SYNGENTA SEEDS AG, CH

BE FR NL PL
6 records

ES Tryo

Terminated

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

Euralis Semences

BE FR NL PL
5 records

ES Makila

Protection expired

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

Euralis Semences FR

BE CZ FR PL
5 records

Fantastic

Protection expired

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

LIMAGRAIN NEDERLAND

BE CZ FR PL
6 records

Ibarama

Active

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

LIDEA FRANCE SAS

CZ NL PL
4 records

RGT Alpixx

Active

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

RAGT 2n, FR

CZ FR PL
4 records

LID3620C

Active

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

LIDEA FRANCE SAS

CZ FR PL
4 records

LID1145C

Active

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

LIDEA FRANCE SAS

CZ FR PL
4 records

Bellwood

Active

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

Lidea France SAS, FR

CZ FR PL
4 records

PR39W45

Protection expired

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

PIONEER OVERSEAS CORPORATION US

CZ FR PL
4 records

PR39T13

Protection expired

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

PIONEER OVERSEAS CORPORATION US

CZ FR PL
4 records

PR39D81

Protection expired

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

PIONEER HI-BRED INTERNATIONAL

CZ FR PL
4 records

P9944

Active

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

PIONEER OVERSEAS CORPORATION

CZ ES PL
5 records

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