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agronom.cc cultivar database

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.

Sources8

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.

M 26

Active

Malus Mill. · Apple

RUP «BRESTSKAYA OBLASTNAYA SELSKOXOZYAJSTVENNAYA OPYTNAYA STANCZIYA NAN BELARUSI»

CZ ES HU PL SK
15 records

CRIPP'S PINK

Active

Malus Mill. · Apple

Cripps, John E.|Florent Park, Australia

IT PT
4 records

Maypole

Active

Malus Mill. · Apple

Tobutt, Kenneth R.|Kent, England

DE DK IT NL SE SK
12 records

Jonagored

Active

Malus Mill. · Apple

Morren-De Coster, J.

DK IT PT SE SK
12 records

Telamon

Active

Malus Mill. · Apple

Tobutt, Kenneth R.|Maidstone, England

DK IT NL SE
8 records

Pinova

Active

Malus Mill. · Apple

Sächsische Landesanstalt für Landwirtschaft

BG NL SK
7 records

Galaxy

Active

Malus Mill. · Apple

Kiddle, Kenneth W.|Hawkes Bay, New Zealand

AT IT PT
6 records

Prima

Protection expired

Malus Mill. · Apple

PURDUE RESEARCH FOUNDATION

DK SE SK
5 records

Caudle

Active

Malus Mill. · Apple

M. Doyle Fleming Caudle Apple Inc.

SK
6 records

Red Elstar

Protection expired

Malus Mill. · Apple

MICHIELSEBS LUDOVICUS JACOBUS ELESABETH

DK IT
6 records

Pilot

Active

Malus Mill. · Apple

Murawski, Smadlak, Fisher, M. Fisher

BG IT NL SK
5 records

Red Jonaprince

Active

Malus Mill. · Apple

Princen Wilhelmus J. F. A. / Princen Antonius F. M. J.

NL SK
6 records

Reglindis

Active

Malus Mill. · Apple

Murawski en Fischer

HU NL RO SK
4 records

Honeycrisp

Application submitted

Malus Mill. · Apple

Luby, Jim|St. Paul, MN / Bedford, David S.|Delano, MN

IT
4 records

Rewena

Active

Malus Mill. · Apple

Murawski, Smadlak, Fisher, M. Fisher

BG NL RO
4 records

Courtabri

Active

Malus Mill. · Apple

L'INSTITUT NATIONAL DE LA

DE FR NL
6 records

Yataka

Active

Malus Mill. · Apple

Hiraragi, Tadao|Masuda, Japan

IT
5 records

Courtarou

Active

Malus Mill. · Apple

L'INSTITUT NATIONAL DE LA

DE FR NL
6 records

Sansa

Application submitted

Malus Mill. · Apple

Yoshida, Yoshio|Ibaraki, Japan / Haniuda, Tadayuki|Suzaka, Japan / Tsuchiya, Shichiro|Morioka, Japan / Sanada, Tetsuro|Ibaraki, Japan / Masuda, Tetsuo|Morioka, Japan / Bessho, Hideo|Morioka, Japan / McKenzie, Donald W.|Havelock North, New Zealand

NL
4 records

Pb-4

Active

Malus Mill. · Apple

Samus` Volodymyr Andriiovych, Pavliuchyk Anatolii Stepanovych,

PL UA
6 records

Fiesta

Active

Malus Mill. · Apple

Frank H. Alston Institute of Horticultural Research

SE
5 records

Retina

Application submitted

Malus Mill. · Apple

Murawski en Fischer

HU NL SK
4 records

JFS-KW207

Active

Malus Mill. · Apple

Warren Keith S.

6 records

Gala 0502

Application submitted

Malus Mill. · Apple

COLA GIACOMO

IT
2 records