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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.

P 9074

Active

Zea mays L. · Maize

Pioneer Overseas Corporation, USA

AT BG DE RO SI SK +1
19 records

P 9578

Active

Zea mays L. · Maize

Pioneer Overseas Cor, USA

AT BG HU RO SI SK +1
15 records

P 9903

Active

Zea mays L. · Maize

Pioneer Overseas Cor, USA

BG DE IT RO SI UA
18 records

PR 39 F 58

Active

Zea mays L. · Maize

Susanne Groh

AT BE DE SI UA
12 records

PR 39 T 83

Active

Zea mays L. · Maize

PIONEER OVERSEAS CORPORATION

AT DE SI UA
7 records

MAS 34 B

Active

Zea mays L. · Maize

MAS SEEDS

HU IT SK UA
8 records

DKC 3730

Active

Zea mays L. · Maize

PETER KONCZOL

AT HU UA
10 records

P 8025

Active

Zea mays L. · Maize

PIONEER OVERSEAS CORPORATION

DE SI UA
9 records

MAS 28 A

Active

Zea mays L. · Maize

MAS SEEDS

IT SK UA
10 records

P 0074

Active

Zea mays L. · Maize

Pioneer Overseas Cor, USA

IT SK UA
11 records

P 8523

Active

Zea mays L. · Maize

Pioneer Overseas Corporation, USA

AT IT UA
10 records

MAS 24 C

Active

Zea mays L. · Maize

MAS SEEDS

DE IT UA
10 records

NS 300

Active

Zea mays L. · Maize

Institute of Field and Vegetable Crops (SB)

BG RO UA
11 records

DKC 3939

Active

Zea mays L. · Maize

MONSANTO TECHNOLOGY

AT HU IT UA
9 records

P 8688

Active

Zea mays L. · Maize

PIONEER OVERSEAS CORPORATION

RO SK UA
8 records

MAS 40 F

Active

Zea mays L. · Maize

MAS SEEDS

IT RO UA
10 records

MAS 10 A

Active

Zea mays L. · Maize

MAS SEEDS

DK UA
6 records

KWS 4484

Active

Zea mays L. · Maize

Rainer Leipert

BG RO SK UA
10 records

DKC 35-11

Active

Zea mays L. · Maize

MONSANTO TECHNOLOGY

AT HU SK UA
11 records

MAS 78T

Active

Zea mays L. · Maize

MAS SEEDS

GR IT PT
9 records

MAS 14 G

Active

Zea mays L. · Maize

MAS SEEDS

LT UA
6 records

P 9718 E

Active

Zea mays L. · Maize

PIONEER OVERSEAS CORPORATION

RO SK UA
8 records

P 79091

Active

Zea mays L. · Maize

PIONEER OVERSEAS CORPORATION

DE IT UA
8 records

LID 3750 C

Active

Zea mays L. · Maize

EURALIS SEMENCES ,Lidea France SAS

DE IT SK UA
6 records

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