JFS-KW5
ActiveMalus Mill. · Apple
Warren Keith S.
Diseases
Apple Scab
Malus Mill.
A fungal disease of apple trees caused by the ascomycete fungus Venturia inaequalis. It affects all aerial organs of the plant, causing necrosis, fruit deformation, and premature defoliation.
In the reference 238 varieties crop Apple, where this is mentioned in the description.
The causative agent is the fungus Venturia inaequalis, which is highly specialized to apple trees. The pathogen infects leaves, fruits, sepals, pedicels, and young shoots. On leaves, the disease manifests as olive-black velvety spots, and on fruits, as suberized areas that lead to cracking and deformation.
The high genetic variability of the pathogen allows it to overcome the monogenic resistance of cultivars. In modern breeding, Rvi resistance genes, including Rvi6 (formerly known as Vf), are used to combat the disease. Pyramiding several resistance genes into a single genotype is recognized as an effective strategy to ensure long-term protection of the crop.
General information about the subject — on the page Scab.
Varieties of Apple mentioned in the description
Selection based on the description text, not on official evaluation: these data are absent from registers. For specific variety details, please refer to its profile.
Angold
ActiveMalus Mill. · Apple
Jan Blazek c/o VSUO Holovousy
IT
SK
4 records
Otava
ActiveMalus Mill. · Apple
Jaroslav Tupy Institute of Experimental Botany / Otto Louda Institute of Experimental Botany
NL
SK
3 records
Daliest
ActiveMalus Mill. · Apple
LIGONNIE'RE GUY
DK
IT
3 records
Summerdel
WithdrawnMalus Mill. · Apple
WINKS CALVIN W.
IT
4 records
Remo
ActiveMalus Mill. · Apple
Murawski en Fischer
IT
NL
RO
3 records
JFS KW213MX
ActiveMalus Mill. · Apple
Warren Keith S.
JFS KW214MX
ActiveMalus Mill. · Apple
Warren Keith S.
Piros
ActiveMalus Mill. · Apple
FISCHER MANFRED / MURAWSKI HEINZ / SCHMADLAK JOHANN
IT
NL
SK
3 records
Jonagored Supra
ActiveMalus Mill. · Apple
Jozef Morren c/o Jomobel N.V.
SK
3 records
Relinda
ActiveMalus Mill. · Apple
Fischer, M. / Fischer, C. / Murawski, H.
HU
RO
SK
3 records
Earlidel
ActiveMalus Mill. · Apple
WINKS CALVIN W.
IT
3 records
Starkrimson Delicious
Application submittedMalus Mill. · Apple
Bisbee, Roy A
SK
3 records
Sandidge
ActiveMalus Mill. · Apple
Sandidge, Jr., Charles R.|5618 Entiat River Rd., Entiat, WA 98822
IT
PT
3 records
Resista
ActiveMalus Mill. · Apple
Jan Blazek c/o VSUO Holovousy
IT
SK
3 records
Profusion
ActiveMalus Mill. · Apple
Sagaplant AS, N-3812 Akkerhaugen
Rosalie
ActiveMalus Mill. · Apple
Tupy Jaroslav,Louda Otto,Zima Jan
CZ
2 records
Rubin
Application submittedMalus Mill. · Apple
SEMPRA CARLO
IT
SK
3 records
Nela
TerminatedMalus Mill. · Apple
Jaroslav Tupy Institute of Experimental Botany
SK
2 records
Goldspur
Protection expiredMalus Mill. · Apple
Auvil, Grady
SK
2 records
Selena
ActiveMalus Mill. · Apple
BLAZEK J.
IT
SK
3 records
Elise
TerminatedMalus Mill. · Apple
VERHAEGH JACOBUS JOHANNES
IT
2 records
Fendeca
ActiveMalus Mill. · Apple
Reinhard Kaneppele - Termeno (IT)
BG
IT
2 records
P 67
ActiveMalus Mill. · Apple
Instytut Ogrodnictwa - Państwowy Instytut Badawczy
PL
4 records