Bazzu
ActiveBeta vulgaris Garden Beet Group · Garden beet
BEJO ZADEN B.V.
NL
4 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.
Anduța F
ActiveGlycine max (L.) Merr. · Soybean
MANEA DANIELABARBIERU ANCUTA
RO
4 records
Alaska
ActiveGlycine max (L.) Merr. · Soybean
ALAIN LETOURNEAU
UA
5 records
PIILAG B1
ActiveLagerstroemia L. · Crape Myrtle
Kardos Joshua H.
Pearl
ActivePastinaca sativa L. · Parsnip
Elsoms Seeds, GB
BTS 4745 N
ActiveBeta vulgaris Sugar Beet Group · Sugar beet
Betaseed
BE
DE
2 records
Smart Amaltea KWS
ActiveBeta vulgaris Sugar Beet Group · Sugar beet
Ann-Katrin Muennekhoff, Dietrich Hauer
DE
UA
3 records
Warrior F1
Application submittedBeta vulgaris Garden Beet Group · Garden beet
Clause Semences (FR)
SI
UA
2 records
Steffka
WithdrawnBeta vulgaris Sugar Beet Group · Sugar beet
KWS SAAT SE & CO.KGAA
CZ
PL
2 records
Smart Ekta KWS
ActiveBeta vulgaris L. · Beet
KWS SAAT SE & CO.KGAA
AT
2 records
Smart Seza KWS
ActiveBeta vulgaris Sugar Beet Group · Sugar beet
Ann-Katrin Muennekhoff, Dietrich Hauer
DE
UA
3 records
Smart Adjana KWS
ActiveBeta vulgaris Sugar Beet Group · Sugar beet
KWS SAAT SE & CO.KGAA
CZ
PL
2 records
Rentabla KWS
ActiveBeta vulgaris Sugar Beet Group · Sugar beet
KWS SAAT SE & CO.KGAA
BE
NL
2 records
Herma KWS
WithdrawnBeta vulgaris Sugar Beet Group · Sugar beet
KWS Saat AG, DE
FR
NL
3 records
Hamster
ActiveBeta vulgaris Sugar Beet Group · Sugar beet
DLF Beet Seed APS
BE
CZ
2 records
Crocodile
ActiveBeta vulgaris Sugar Beet Group · Sugar beet
Societe Europeenne de Semences NV/SA (BE)
BE
FR
2 records
Colonia KWS
Protection expiredBeta vulgaris Sugar Beet Group · Sugar beet
KWS Saat AG, DE
DE
HR
2 records
Bomber Smart
ActiveBeta vulgaris Sugar Beet Group · Sugar beet
Jan Sels
DE
UA
2 records
Bikor
ActiveBeta vulgaris Garden Beet Group · Garden beet
Bejo Zaden BV (NL)
HR
3 records
BTS 7635
ActiveBeta vulgaris Sugar Beet Group · Sugar beet
Margaret Rekoske
DE
UA
2 records
BTS 670
TerminatedBeta vulgaris Sugar Beet Group · Sugar beet
Margaret Rekoske
DE
UA
2 records
BTS Smart 9830
ActiveBeta vulgaris Sugar Beet Group · Sugar beet
Margaret Rekoske
DE
UA
2 records
BTS Smart 3525
ActiveBeta vulgaris Sugar Beet Group · Sugar beet
Henning Friehe
DE
UA
2 records
Atamansha
TerminatedBeta vulgaris Sugar Beet Group · Sugar beet
Syngenta Seeds
FR
UA
2 records