Skip to content
agronom.cc cultivar database

Diseases

Maize leaf spots

Zea mays L.

A group of maize diseases caused by a complex of fungal and bacterial pathogens, characterized by the appearance of specific lesions on the leaf blade.

In the reference 82 varieties crop Maize, where this is mentioned in the description.

Northern corn leaf blight, caused by Helminthosporium turcicum, manifests as elongated spindle-shaped spots up to 25 cm long with a dark brown border. Southern corn leaf blight (Bipolaris maydis) forms grayish-tan elliptical spots, with race T of this pathogen showing high aggressiveness towards hybrids with cms-T cytoplasm.

In breeding for resistance to northern corn leaf blight, the dominant genes Ht1, Ht2, Ht3, and HtN play a key role. In addition to helminthosporium blights, significant damage is caused by gray leaf spot (Cercospora zeae-maydis), eyespot caused by Kabatiella zeae, and bacterial spot caused by Pseudomonas holci.

General information about the subject — on the page Leaf spot diseases.

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.

PH87P

Active

Zea mays L. · Maize

PIONEER HI-BRED INTERNATIONAL

4 records

PH2VK

Active

Zea mays L. · Maize

PIONEER HI-BRED INTERNATIONAL

6 records

Ph48v

Active

Zea mays L. · Maize

PIONEER HI-BRED INTERNATIONAL

5 records

Ph38d

Active

Zea mays L. · Maize

PIONEER HI-BRED INTERNATIONAL

4 records

KWS Nestor

Active

Zea mays L. · Maize

Rainer Leipert

UA
6 records

SUM 405

Active

Zea mays L. · Maize

Mario Lo Pinto

IT UA
5 records

P 90810

Active

Zea mays L. · Maize

PIONEER OVERSEAS CORPORATION

DE IT
2 records

LH 93

Protection expired

Zea mays L. · Maize

HOLDEN'S FOUNDATION SEEDS INC.

HU
2 records

Furio 4207

Active

Zea mays L. · Maize

Syngenta Seeds

AT SK
7 records

P68106

Active

Zea mays L. · Maize

PIONEER OVERSEAS CORPORATION

DK
4 records

P1366

Application submitted

Zea mays L. · Maize

PIONEER HI-BRED INTERNATIONAL

IT PT
3 records

Bonnie

Active

Zea mays L. · Maize

LIMAGRAIN EUROPE

EE
5 records

Avitus KWS

Active

Zea mays L. · Maize

KWS SAAT SE and CO KGAA

DK
4 records

P0640

Active

Zea mays L. · Maize

PIONEER OVERSEAS CORPORATION

IT
4 records

PH8DB

Active

Zea mays L. · Maize

PIONEER HI-BRED INTERNATIONAL

3 records

R400MR

Active

Zea mays L. · Maize

CROOKHAM COMPANY

3 records

Phhb4

Active

Zea mays L. · Maize

PIONEER HI-BRED INTERNATIONAL

3 records

PH21T

Active

Zea mays L. · Maize

PIONEER HI-BRED INTERNATIONAL

3 records

Ph14t

Active

Zea mays L. · Maize

PIONEER HI-BRED INTERNATIONAL

3 records

PH6WA

Active

Zea mays L. · Maize

PIONEER HI-BRED INTERNATIONAL

3 records

Ph44a

Active

Zea mays L. · Maize

PIONEER HI-BRED INTERNATIONAL

3 records

PHCA5

Active

Zea mays L. · Maize

PIONEER HI-BRED INTERNATIONAL

4 records

PH705

Active

Zea mays L. · Maize

PIONEER HI-BRED INTERNATIONAL

3 records

Strike

Terminated

Zea mays L. · Maize

D.J. VAN DER HAVE B.V.

IT
3 records