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Diseases

Helminthosporium leaf blight — sweet corn

Zea mays L. subsp. mays (Sweet Corn Group)

A collective name for a group of fungal leaf spots caused by Bipolaris maydis (southern corn leaf blight) and Exserohilum turcicum (northern corn leaf blight). The disease affects vegetative organs and ears, causing necrotic spots of various shapes and sizes.

In the reference 134 varieties crop Sweet corn, where this is mentioned in the description.

The causal agent of southern corn leaf blight is Bipolaris maydis, which includes races 0, T, and C. The most aggressive race T is pathogenic to corn with CMS-T, causing necrosis on leaves, stalks, and ears. The southern type is characterized by small reddish-brown spindle-shaped or rectangular spots with a dark border.

Northern corn leaf blight, caused by Exserohilum turcicum, manifests as large cigar-shaped spots up to 20 cm long, featuring a grayish center and an olive-black layer of sporulation. Resistance to northern corn leaf blight is controlled by Ht-type genes, such as Ht1, Ht2, and Ht3, which is reflected in the breeding designations of hybrids.

General information about the subject — on the page Helminthosporiosis.

Sources8

Varieties of Sweet corn 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.

Challenger

Active

Zea mays L. subsp. mays (Sweet Corn Group) · Sweet corn

Seminis Vegetables (NL)

BG HU SI SK
8 records

Messenger

Active

Zea mays L. subsp. mays (Sweet Corn Group) · Sweet corn

Seminis Vegetable Seeds

NL UA
9 records

Jubilee

Active

Zea mays L. subsp. mays (Sweet Corn Group) · Sweet corn

Syngenta Seeds B.V.

HU NL PL SK
9 records

Sundance

Active

Zea mays L. subsp. mays (Sweet Corn Group) · Sweet corn

HM Clause, INC. (SAD)

FR HR HU NL SK
7 records

Turbo

Active

Zea mays L. subsp. mays (Sweet Corn Group) · Sweet corn

HM Clause, USA

HR HU
7 records

Rustler

Active

Zea mays L. subsp. mays (Sweet Corn Group) · Sweet corn

HM Clause, USA

FR SK
6 records

Sweetstar

Active

Zea mays L. subsp. mays (Sweet Corn Group) · Sweet corn

Syngenta Seeds B.V.

NL
4 records

GSS 1453

Active

Zea mays L. subsp. mays (Sweet Corn Group) · Sweet corn

Syngenta Seeds B.V.

NL
2 records

Landmark

Active

Zea mays L. subsp. mays (Sweet Corn Group) · Sweet corn

HM.CLAUSE

FR PL
3 records

Agnes

Active

Zea mays L. subsp. mays (Sweet Corn Group) · Sweet corn

SEMO a.s

SK
3 records

3188MR

Terminated

Zea mays L. subsp. mays (Sweet Corn Group) · Sweet corn

Zoher Karinjee

PL UA
3 records

Ketama

Active

Zea mays L. subsp. mays (Sweet Corn Group) · Sweet corn

HM Clause Inc (US)

FR UA
3 records

Mirus

Protection expired

Zea mays L. subsp. mays (Sweet Corn Group) · Sweet corn

ZKI, H

HU
3 records

GH 6462

Active

Zea mays L. subsp. mays (Sweet Corn Group) · Sweet corn

NL
2 records

Northern Xtra Sweet

Terminated

Zea mays L. subsp. mays (Sweet Corn Group) · Sweet corn

Illinois Foundation Seeds

NL
3 records

Owatonna

Active

Zea mays L. subsp. mays (Sweet Corn Group) · Sweet corn

Harris Moran Seed Co.

UA
3 records

GSS1477S

Active

Zea mays L. subsp. mays (Sweet Corn Group) · Sweet corn

Syngenta Seeds B.V.

NL
2 records

Matador

Active

Zea mays L. subsp. mays (Sweet Corn Group) · Sweet corn

HU
3 records

Zeaton

Active

Zea mays L. subsp. mays (Sweet Corn Group) · Sweet corn

HU UA
3 records

Impress

Active

Zea mays L. subsp. mays (Sweet Corn Group) · Sweet corn

HU
2 records

Adika

Protection expired

Zea mays L. subsp. mays (Sweet Corn Group) · Sweet corn

SK
2 records

Allrounder

Active

Zea mays L. subsp. mays (Sweet Corn Group) · Sweet corn

HU
2 records

Landmark F1

Terminated

Zea mays L. subsp. mays (Sweet Corn Group) · Sweet corn

Archipiano Murielle

UA
1 record

GSS4628

Application submitted

Zea mays L. subsp. mays (Sweet Corn Group) · Sweet corn

Syngenta Crop Protection AG

NL
2 records