Diseases

White mold

Sclerotinia sclerotiorum

White mold is a dangerous fungal disease caused by a soil-borne pathogen that affects a wide range of crops and persists in the soil in the form of sclerotia. The disease leads to significant crop losses and reduced product quality.

Mentioned in descriptions 3 042 varieties reference book.

The disease manifests as seedling rot and the appearance of brown, water-soaked spots on stems and flower heads, which become covered with a dense, white, cotton-like mycelial growth. Black, dense structures known as sclerotia form inside and on the surface of tissues, serving as a source of infection.

Pathogen development depends on temperature ranges from +10°C to +25°C, as well as high soil and air humidity, which are necessary for the germination of sclerotia. The risk of infection increases with high planting density, poor crop rotation, and excessive nitrogen fertilization.

Resistance of varieties to white mold is a quantitative polygenic trait provided by cell wall density and the plant's ability to neutralize oxalic acid secreted by the fungus. Resistance assessment in variety trials is conducted by recording the spread and severity of plant infection under field conditions on natural or artificial inoculation plots.

Sources10

Breakdown by crop

Sclerotinia Wilt of Sunflower 549 Sclerotinia stem rot of rapeseed 170 White Mold of Soybean 86 Sclerotinia stem rot of rapeseed 79 White mold — red clover 33 White Mold of Bean 13 White Mold of Lettuce 8 White Mold — White Clover 7 White rot of radish 6 White Rot of Garlic 6 White rot of carrot 5 White Mold of Pepper 4 White Rot of Cabbage 4 White Mold — White Mustard 4 White mold of peanut 3

Found in these crops

Sunflower 445 Rapeseed 192 Soybean 110 Rapeseed 86 Red clover 42 Common bean 23 White clover 13 Lettuce 11 White mustard 6 Peanut 4 Carrot 3 Brown mustard 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.

MAS 84 E

Active

Helianthus annuus L. · Sunflower

MAS Seeds,FR

AT BG CZ HR IT

13 records

MAS 92 IR

Active

Helianthus annuus L. · Sunflower

MAS Seeds,FR

CZ ES HR IT UA

10 records

LG 5550

Active

Helianthus annuus L. · Sunflower

Limagrain-Advanta Nederland B.V.

BG ES RO UA

11 records

MAS 92 CP

Active

Helianthus annuus L. · Sunflower

Maisadour Semences, F

ES RO SK UA

10 records

MAS 87 IR

Active

Helianthus annuus L. · Sunflower

MAS SEEDS

ES IT RO UA

11 records

PR 44 D 06

Active

Brassica napus var. napus · Rapeseed

Pioneer Overseas Corporation US (USA)

DK FI FR HR UA

10 records

PT 312

Active

Brassica napus var. napus · Rapeseed

PIONEER OVERSEAS CORPORATION US

CZ DE DK FR PL UA

13 records

PT 234

Active

Brassica napus var. napus · Rapeseed

Pioneer Overseas Corporation US (USA)

DE DK HR UA

13 records

NK Rocky

Active

Helianthus annuus L. · Sunflower

SYNGENTA SEEDS AG, CH

AT BG FR HU UA

10 records

N 5LM307

Active

Helianthus annuus L. · Sunflower

NUSEED EUROPE

IT RO SK UA

11 records

Paraiso 102 CL

Active

Helianthus annuus L. · Sunflower

Saaten Union Romania, RO

12 records

LG5451 HO CL

Active

Helianthus annuus L. · Sunflower

LIMAGRAIN VERNEUIL HOLDING S.A.

AT HU IT SK UA

11 records

MAS 90 F

Active

Helianthus annuus L. · Sunflower

MAS SEEDS

ES IT RO UA

10 records

MAS 96 P

Active

Helianthus annuus L. · Sunflower

MAS Seeds,FR

BG ES IT UA

8 records

LG 5662

Active

Helianthus annuus L. · Sunflower

Remy ROUANET

FR IT SK UA

10 records

MAS 98 M

Active

Helianthus annuus L. · Sunflower

MAS Seeds,FR

BG IT UA

9 records

PT 303

Active

Brassica napus var. napus · Rapeseed

PIONEER OVERSEAS CORPORATION US

CZ DE DK FR PL

11 records

PR 44 W 22

Active

Brassica napus var. napus · Rapeseed

Pioneer Overseas Corporation US (USA)

DK FR HR UA

9 records

PT 314

Active

Brassica napus var. napus · Rapeseed

PIONEER OVERSEAS CORPORATION US

DE DK FR PL UA

11 records

X 4219

Active

Helianthus annuus L. · Sunflower

NUSEED EUROPE

IT RO SK UA

10 records

PR 46 W 21

Active

Brassica napus var. napus · Rapeseed

PIONEER SALES| Pioneer Hi-Bred Northern Europe Sales Division GmbH

DE DK HR UA

9 records

PT 271

Active

Brassica napus var. napus · Rapeseed

Pioneer Overseas Corporation US (USA)

DE HR UA

12 records

PR 63 A 86

Active

Helianthus annuus L. · Sunflower

PIONEER OVERSEAS CORPORATION US

BG FR IT UA

12 records

PARAISO 1000 CL PLUS

Active

Helianthus annuus L. · Sunflower

Amelia Bertero

RO UA

8 records

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Text source

This summary is compiled from the publications listed in the sources and verified by an editor. It contains no legally significant information; it provides agronomic context for registry data rather than the registry data itself.