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Diseases

Helminthosporium leaf blight of maize

Zea mays L.

A group of maize diseases caused by the fungi Helminthosporium maydis and Exserohilum turcicum, manifesting as specific leaf spots and ear rot.

In the reference 613 varieties crop Maize, where this is mentioned in the description.

Southern corn leaf blight is caused by the fungus Helminthosporium maydis and is characterized by spindle-shaped spots on the leaves with a dark brown center. Races O, T, and C are known, of which race T is considered the most aggressive, as it is capable of causing ear rot and infecting plants with CMS-type cytoplasm.

Northern corn leaf blight is caused by the pathogen Exserohilum turcicum and manifests as large, elongated necrotic spots up to 20 cm in length. When breeding for resistance to this disease, race-specific Ht genes (Ht1, Ht2, Ht3) are used, which provide qualitative protection, as well as the Htn1 gene, which suppresses the fungus sporulation process.

General information about the subject — on the page Helminthosporiosis.

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.

Zea mays L. · Maize

Pierre CAROLO

DE UA
5 records

Zea mays L. · Maize

LIDEA FRANCE SAS

BE LT
4 records

Zea mays L. · Maize

RAGT 2N S.A.S

IT LT
5 records

NKTerra

Terminated

Zea mays L. · Maize

SYNGENTA SEEDS AG, CH

BG IT
3 records

Zea mays L. · Maize

RAGT 2N S.A.S

IT SK
3 records

MAS 431B

Active

Zea mays L. · Maize

MAS SEEDS

IT UA
3 records

Zea mays L. · Maize

RAGT 2N S.A.S

IT SK
3 records

Karibiko

Active

Zea mays L. · Maize

ROBERT TAUCHER

SK UA
4 records

Farmpax

Active

Zea mays L. · Maize

SeedGenetic GmbH

IT UA
4 records

Zea mays L. · Maize

Syngenta Seeds

AT SK
7 records

Codival

Terminated

Zea mays L. · Maize

Rene Baraten

IT UA
5 records

BRV2309D

Active

Zea mays L. · Maize

Pioneer Overseas Corporation, Pioneer Hi-Bred International Inc.

AT IT
4 records

Zea mays L. · Maize

Syngenta Crop Protection AG

IT UA
3 records

Sumeric

Active

Zea mays L. · Maize

Monsanto Technology, USA

IT
5 records

P0937E

Active

Zea mays L. · Maize

PIONEER OVERSEAS CORPORATION

IT PT
5 records

P9216

Active

Zea mays L. · Maize

PIONEER OVERSEAS CORPORATION

AT IT
3 records

Mas 07B

Active

Zea mays L. · Maize

MAS SEEDS

LT
4 records

LG 31253

Active

Zea mays L. · Maize

DE SK
5 records

Lothar

Active

Zea mays L. · Maize

SEMUNDO ITALIA SRL - SEMUNDO SAATZUCHT GMBH

IT UA
4 records

Meghan

Active

Zea mays L. · Maize

MAS SEEDS

LT UA
3 records

Liroyal

Active

Zea mays L. · Maize

KWS SAAT SE and CO KGAA

DK
3 records

MAS 08F

Active

Zea mays L. · Maize

MAS SEEDS

LT
5 records

Zea mays L. · Maize

KWS SAAT SE & CO.KGAA

DK
4 records

Forttuno

Active

Zea mays L. · Maize

SAATBAU LINZ EGEN

LT
4 records

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