Gazelle II
ActiveFestuca arundinacea Schreb. · Tall fescue
TURF SEED EUROPE LTD
IT
5 records
Diseases
Rhizoctonia
Rhizoctonia solani
Rhizoctonia is a polyphagous disease affecting underground and near-ground plant organs at all vegetation stages. The pathogen manifests as rots, stem and root ulcers, and sclerotia on tubers, which leads to sparse emergence and reduced commercial crop quality.
Mentioned in descriptions 1 239 varieties reference book.
Rhizoctonia manifests as sprout rotting, the formation of dark sunken ulcers on stems and roots, and the development of 'black scurf' or a mycelial mat in the near-ground area. During the vegetation period, leaf curling can be observed, and dense black formations known as sclerotia develop on the tuber surface.
Disease development depends on weather conditions, soil type, and agronomic practices, with a prolonged cold and wet spring being the most hazardous. The pathogen actively develops in heavy, acidic, and waterlogged soils, while its spread is facilitated by high plant density and the use of infected material.
In variety trials, resistance is evaluated by planting material in an artificial infection background with subsequent monitoring during the emergence, budding, and harvesting phases. The criteria include the degree of damage to sprouts, roots, and stolons, as well as the surface area of tubers covered by sclerotia compared to control samples.
Breakdown by crop
Rhizoctonia Canker and Black Scurf of Potato
182
Rhizoctonia root rot — sugar beet
88
Rhizoctonia blight of tall fescue
26
Rhizoctonia root rot of table beet
16
Rice Sheath Blight
12
Rhizoctonia Root Rot — Fodder Beet
7
Rhizoctonia bottom rot of lettuce
7
Rhizoctonia blight — Perennial ryegrass
7
Rhizoctonia rot of radish
7
Rhizoctonia blight — Creeping bentgrass
6
Rhizoctonia root rot of beet
5
Rhizoctonia rot of carrot
4
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.
Galata
ActiveSolanum tuberosum L. · Potato
Niederösterreichische Saatbaugenossenschaft reg.Gen.m.b.H.
AT
6 records
Dynamic II
ActiveFestuca arundinacea Schreb. · Tall fescue
PURE SEED TESTING
IT
6 records
Diego
ActiveSolanum tuberosum L. · Potato
Niederösterreichische Saatbaugenossenschaft reg.Gen.m.b.H.
AT
6 records
Barlexas
ActiveFestuca arundinacea Schreb. · Tall fescue
Barenbrug Holland B.V.
NL
4 records
Aigrette
ActiveBeta vulgaris Sugar Beet Group · Sugar beet
SAS FLORIMOND-DESPREZ Veuve et Fils
FR
4 records
RW 648
ActiveHelianthus annuus L. · Sunflower
NORTHRUP KING
ES
HU
3 records
SR 8550
ActiveFestuca arundinacea Schreb. · Tall fescue
SEED RESEARCH OF OREGON
IT
3 records
HM 1820
ActiveBeta vulgaris Sugar Beet Group · Sugar beet
Syngenta Crop Protection AG
IT
3 records
KW 915
TerminatedBeta vulgaris Sugar Beet Group · Sugar beet
KWS SAAT SE & CO.KGAA
DE
2 records
Ditta
ActiveSolanum tuberosum L. · Potato
AT
CZ
DE
DK
EE
ES
+6
28 records
Redman
ActiveTrifolium pratense L. · Red clover
IT
5 records
Melfort
Protection expiredBrassica napus L. var. napobrassica (L.) Rchb. · Rutabaga
IE
5 records
Rainette
ActiveBeta vulgaris Sugar Beet Group · Sugar beet
SESVANDERHAVE, N.V./S.A.
ES
FR
3 records
Hippocampe
ActiveBeta vulgaris Sugar Beet Group · Sugar beet
SESVANDERHAVE, N.V./S.A.
ES
FR
3 records
Malenka
TerminatedBeta vulgaris Sugar Beet Group · Sugar beet
KWS Saat AG, DE
DE
FR
3 records
Manatee Smart
ActiveBeta vulgaris Sugar Beet Group · Sugar beet
SESVANDERHAVE N.V./S.A.
IT
UA
3 records
Karta
ActiveBeta vulgaris Sugar Beet Group · Sugar beet
Syngenta Crop Protection AG
BE
ES
4 records
Syncro
Protection expiredBeta vulgaris Sugar Beet Group · Sugar beet
Syngenta Seeds
DE
FR
3 records
Ferret
ActiveBeta vulgaris L. · Beet
SESVanderhave NV
AT
SK
4 records
Treff
TerminatedSolanum tuberosum L. · Potato
Niederösterreichische Saatbaugenossenschaft reg.Gen.m.b.H.
AT
ES
4 records
Urselina KWS
ActiveBeta vulgaris Sugar Beet Group · Sugar beet
KWS Saat SE Finanzbuchhaltung
BE
NL
3 records
Smart Thekla KWS
ActiveBeta vulgaris Sugar Beet Group · Sugar beet
KWS SAAT SE & CO.KGAA
DE
PL
3 records
Smart Jutta KWS
ActiveBeta vulgaris Sugar Beet Group · Sugar beet
KWS SAAT SE & CO.KGAA
BE
NL
3 records