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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 Oat 12 Kentucky bluegrass 12 Perennial ryegrass 12 Sorghum 9 Opium poppy 7 Naked oat 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.

P9985

Active

Zea mays L. subsp. mays (Maize Group) · Maize

CZ
2 records

P9300

Active

Zea mays L. subsp. mays (Maize Group) · Maize

CZ
2 records

KSZF Fordent

Active

Papaver somniferum L. · Opium poppy

SK
2 records

MAS 28A

Active

Zea mays L. subsp. mays (Maize Group) · Maize

CZ
2 records

Impress

Active

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

HU
2 records

Filando

Active

Zea mays L. · Maize

SK
2 records

Emanuel

Active

Papaver somniferum L. · Opium poppy

CZ
3 records

Delegato

Active

Zea mays L. · Maize

SK
2 records

Amaretto

Active

Zea mays L. · Maize

DE
2 records

Allrounder

Active

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

HU
2 records

Asteri YG

Protection expired

Zea mays L. subsp. mays (Maize Group) · Maize

CZ
2 records

Adika

Protection expired

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

SK
2 records

AP2202

Active

Zea mays L. subsp. mays (Popcorn Group) · Popcorn

HU
2 records

Akvarel

Active

Papaver somniferum L. · Opium poppy

CZ
3 records

Dubník

Terminated

Papaver somniferum L. · Opium poppy

CZ SK
2 records

Capacito

Active

Zea mays L. · Maize

SK
3 records

Varieto

Active

Zea mays L. · Maize

SK
2 records

Oxxygen YG

Terminated

Zea mays L. subsp. mays (Maize Group) · Maize

CZ
2 records

Overtune

Protection expired

Hordeum vulgare L. · Barley

FI
2 records

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