Multivira
ActiveBeta vulgaris Sugar Beet Group · Sugar beet
DE
2 records
Diseases
Cercospora leaf spot
Cercospora beticola
Cercospora leaf spot is a fungal plant disease that causes leaf spotting, necrosis, and a significant yield reduction due to the disruption of photosynthesis.
Mentioned in descriptions 2 072 varieties reference book.
The disease manifests as small circular spots measuring 2–5 mm, light brown or grayish in color with a characteristic purple or reddish-brown border. Under high humidity, a velvety coating, representing the fungus's sporulation, forms in the center of the affected areas. Subsequently, the spots coalesce, causing yellowing, necrosis, and premature death of the leaf blade, which forces the plant to expend stored nutrients on foliage regeneration.
The development of the pathogen depends on weather conditions, requiring temperatures in the range of +20 °C to +30 °C and a high relative humidity above 70–90%. The presence of free moisture on the leaf surface is critical for the fungus to penetrate through the stomata. The infection persists in the soil on plant debris as mycelium and can be transmitted via seed material.
Evaluation of the resistance of varieties and hybrids is conducted during variety trials based on a visual method, where the degree of infestation is recorded as a percentage of the leaf area or on multi-point scales. Experts use phytomonitoring and regular surveys to determine the infection spread dynamics. Based on the observation results, samples are ranked by resistance groups, which helps agronomists select hybrids capable of maintaining a healthy leaf apparatus until the end of the vegetation period.
Breakdown by crop
Cercospora Leaf Spot — Sugar Beet
484
Cercospora Leaf Blight of Carrot
64
Cercospora Leaf Spot of Table Beet
52
Cercospora Leaf Spot — Fodder Beet
24
Cercospora Leaf Spot of Beet
16
Cercospora Leaf Spot of Swiss Chard
6
Cercospora leaf spot of soybean
5
Cercospora leaf spot of crapemyrtle
5
Rice Cercospora Leaf Spot
3
Found in these crops
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.
Lomosa
ActiveBeta vulgaris Sugar Beet Group · Sugar beet
DE
2 records
Leona
TerminatedBeta vulgaris Sugar Beet Group · Sugar beet
DK
2 records
Kvilda
ActiveBeta vulgaris Sugar Beet Group · Sugar beet
CZ
3 records
Kupka
ActiveBeta vulgaris Sugar Beet Group · Sugar beet
CZ
2 records
Marduk Smart
ActiveBeta vulgaris Sugar Beet Group · Sugar beet
RO
2 records
Ludovica KWS
ActiveBeta vulgaris Sugar Beet Group · Sugar beet
DE
2 records
Malkin
ActiveBeta vulgaris Sugar Beet Group · Sugar beet
DE
2 records
Little Ball
ActiveBeta vulgaris Garden Beet Group · Garden beet
NL
2 records
Kozel
ActiveBeta vulgaris Sugar Beet Group · Sugar beet
CZ
2 records
Kakadu
ActiveBeta vulgaris Sugar Beet Group · Sugar beet
DE
3 records
FD Climber
ActiveBeta vulgaris Sugar Beet Group · Sugar beet
CZ
2 records
Gimpel
TerminatedBeta vulgaris Sugar Beet Group · Sugar beet
DE
2 records
Habicht
ActiveBeta vulgaris Sugar Beet Group · Sugar beet
DE
4 records
Cobrançosa
ActiveOlea europaea L. · Olive
ES
2 records
Feliciana KWS
ActiveBeta vulgaris Sugar Beet Group · Sugar beet
DE
2 records
BTS Smart 9245 N
ActiveBeta vulgaris Sugar Beet Group · Sugar beet
DE
2 records
BTS 6685 RHC
ActiveBeta vulgaris Sugar Beet Group · Sugar beet
DE
2 records
Bombina
ActiveBeta vulgaris Sugar Beet Group · Sugar beet
DE
2 records
BTS 2635 N
ActiveBeta vulgaris Sugar Beet Group · Sugar beet
CZ
2 records
Cephal Smart
ActiveBeta vulgaris Sugar Beet Group · Sugar beet
RO
2 records
Bico
TerminatedBeta vulgaris Sugar Beet Group · Sugar beet
DE
2 records
Carsta KWS
TerminatedBeta vulgaris Sugar Beet Group · Sugar beet
DE
2 records
Aluco
TerminatedBeta vulgaris Sugar Beet Group · Sugar beet
DE
2 records