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Diseases

Helminthosporiosis

Bipolaris, Drechslera

Helminthosporiosis is a complex of plant diseases caused by fungi of various genera, manifested in the form of leaf spots, root rots, and seed infection. The disease leads to a significant reduction in the yield and quality of agricultural crops.

Mentioned in descriptions 3 441 varieties reference book.

Helminthosporiosis represents a group of diseases that manifest through the formation of leaf spots, the color and shape of which vary from light gray to dark brown with a distinct border. Under severe infection, spots coalesce, causing necrosis and drying of the leaf blade, and can also affect roots, stems, and grain, causing rots and darkening of the embryo.

Disease development is most intense in the presence of droplet moisture and air temperatures ranging from +20 to +30 degrees Celsius. The level of infection depends on the climatic conditions of the specific region, the degree of variety susceptibility, and the overall infectious background in the fields.

Variety resistance is ensured by the genetically determined ability of the plant to limit pathogen development, with resistance in some crops being directly linked to the cytoplasm type. During variety trials, resistance is assessed using scoring scales under field conditions, as well as by biotesting methods on selective media using fungal toxins.

Sources10

Breakdown by crop

Helminthosporium leaf blight of maize 613 Helminthosporium Leaf Blight of Maize 244 Helminthosporium leaf spot of barley 147 Helminthosporium leaf blight — sweet corn 134 Rice Helminthosporium Leaf Spot 31 Helminthosporium leaf blotch of oats 23 Helminthosporium leaf spot of perennial ryegrass 17 Helminthosporium leaf blight — common wheat 16 Helminthosporium leaf spot of Kentucky bluegrass 11 Sorghum Helminthosporium Leaf Blight 9 Helminthosporiosis of Opium Poppy 8 Helminthosporium leaf spot — Popcorn 7 Helminthosporium leaf spot of triticale 4 Helminthosporiosis in naked oats 4 Helminthosporium Leaf Blight of Maize 4 Helminthosporium leaf spot of tall fescue 3

Found in these crops

Maize 452 Maize 184 Barley 64 Sweet corn 34 Rice 17 Bread wheat 15 Perennial ryegrass 12 Oat 12 Kentucky bluegrass 12 Sorghum 9 Opium poppy 7 Popcorn 3

Varieties that feature this in their description

Selection based on the description text, not official resistance ratings: such data is not available in registers. Mention indicates that the trait is discussed in the variety's sources; see the variety's profile for details on what is specifically stated.

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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