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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.

NS 6010

Active

Zea mays L. · Maize

JOTSKOVICh BORHE

BG
9 records

P1275

Active

Zea mays L. · Maize

PIONEER OVERSEAS CORPORATION

IT PT
6 records

P7326

Active

Zea mays L. · Maize

PIONEER OVERSEAS CORPORATION

DK
6 records

P7276

Active

Zea mays L. · Maize

PIONEER OVERSEAS CORPORATION

DK
7 records

P1293w

Active

Zea mays L. · Maize

Pioneer Overseas Cor, USA

IT
7 records

P0216E

Active

Zea mays L. · Maize

Pioneer Overseas Corporation, USA

RO
6 records

LID3306C

Active

Zea mays L. · Maize

Laurent BETTINGER

IT SK UA
5 records

KWS Nestor

Active

Zea mays L. · Maize

Rainer Leipert

UA
6 records

Citadel

Active

Zea mays L. · Maize

MAS SEEDS

IT SK UA
5 records

MAS 387L

Active

Zea mays L. · Maize

MAS SEEDS

IT SK UA
5 records

DKC3811

Active

Zea mays L. · Maize

Jon Popi

HU RO UA
7 records

DKC3710

Active

Zea mays L. · Maize

MONSANTO TECHNOLOGY

AT IT UA
6 records

MAS 335I

Active

Zea mays L. · Maize

MAS SEEDS

IT SK UA
4 records

Mastodon

Active

Zea mays L. · Maize

MAS SEEDS

IT SK
4 records

Spectral

Active

Zea mays L. · Maize

Syngenta Crop Protection AG

IT SK UA
6 records

P0325

Active

Zea mays L. · Maize

Pioneer Overseas Cor, USA

IT UA
7 records

MAS 15T

Active

Zea mays L. · Maize

MAS SEEDS

IT UA
4 records

MAS 59K

Active

Zea mays L. · Maize

MAS Seeds, F

IT UA
5 records

MAS 36 N

Active

Zea mays L. · Maize

RO UA
5 records

MAS 16B

Active

Zea mays L. · Maize

MAS SEEDS

UA
7 records

DKC4685

Active

Zea mays L. · Maize

MONSANTO TECHNOLOGY

AT IT UA
5 records

ES Epilog

Active

Zea mays L. · Maize

Pierre CAROLO

SK UA
5 records

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