Diseases
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.
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
PIONEER HI-BRED INTERNATIONAL
Zea mays L. · Maize
PIONEER HI-BRED INTERNATIONAL
Zea mays L. · Maize
HOLDEN'S FOUNDATION SEEDS INC.
Zea mays L. · Maize
Dekalb Genetics Corporation
Zea mays L. · Maize
R2n (FR)
Zea mays L. · Maize
MAS Seeds, F
Zea mays L. · Maize
Pioneer Overseas Cor, USA
Zea mays L. · Maize
PIONEER HI-BRED INTERNATIONAL
Zea mays L. · Maize
BAYERISCHE PFLANZENZUCHTGESELLSCHAFT EG & CO
Zea mays L. · Maize
Syngenta Crop Protection AG
Zea mays L. · Maize
PIONEER OVERSEAS CORPORATION
Zea mays L. · Maize
PIONEER HI-BRED INTERNATIONAL
Zea mays L. · Maize
PIONEER HI-BRED INTERNATIONAL
Zea mays L. · Maize
PETER KONCZOL
Zea mays L. · Maize
LIMAGRAIN EUROPE
Zea mays L. · Maize
LEIPERT RAINER
Zea mays L. · Maize
LIMAGRAIN EUROPE
Zea mays L. · Maize
Monsanto Technology, USA
Zea mays L. · Maize
Syngenta Crop Protection,CH
Zea mays L. · Maize
NICKERSON| Nickerson S.A.
Zea mays L. · Maize
PIONEER OVERSEAS CORPORATION
Zea mays L. · Maize
Pioneer Overseas Cor, USA
Zea mays L. · Maize
CROOKHAM COMPANY
Zea mays L. · Maize
PIONEER HI-BRED INTERNATIONAL