Skip to content
agronom.cc cultivar database

Diseases

Apple Scab

Malus domestica (Suckow) Borkh.

A fungal disease of apple trees caused by the ascomycete fungus Venturia inaequalis, affecting all aerial parts of the plant. The disease manifests as characteristic dark spots with a velvety coating, causing fruit deformation, premature leaf drop, and reduced crop quality.

In the reference 1 949 varieties crop Apple, where this is mentioned in the description.

The pathogen is the highly specialized parasite Venturia inaequalis. The fungus's life cycle includes a teleomorph, which overwinters in fallen leaves, and an anamorph, Fusicladium dendriticum, responsible for secondary infection during the growing season. The disease affects leaves, petioles, pedicels, and fruits, on which spots with an olive-black coating form, leading to cracking and tissue deformation.

Genetic resistance of varieties to the pathogen is associated with Rvi loci. The most well-known is the Rvi6 gene, previously designated as Vf; however, the high variability of the fungal population has led to the emergence of race 6 of the pathogen, which is capable of overcoming this resistance. To ensure long-term immunity, breeding programs are focused on pyramiding several resistance genes, such as Rvi2, Rvi3, Rvi5, and Rvi15.

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.

Telamon

Active

Malus domestica (Suckow) Borkh. · Apple

THE KENT INCORPORATED SOCIETY

BE DE ES FR HU IE +2
18 records

Sirius

Active

Malus domestica (Suckow) Borkh. · Apple

Zima Jan, Louda Otto, Tupy Jaroslav,

CZ HU NL UA
20 records

Fuji Fubrax

Active

Malus domestica (Suckow) Borkh. · Apple

Thomas Braun

FR NL
20 records

Scilate

Active

Malus domestica (Suckow) Borkh. · Apple

White Allan

FR
15 records

Golden Delicious

Active

Malus domestica (Suckow) Borkh. · Apple

CZ ES FR HU NL PL +2
27 records

Jonagold

Active

Malus domestica (Suckow) Borkh. · Apple

Station de Geneva (US)

CZ ES FR HU NL PL +2
22 records

Rafzubin

Active

Malus domestica (Suckow) Borkh. · Apple

Walter Hauenstein-Roschli

BE CZ DE ES FR NL +1
22 records

Cripps Pink

Active

Malus domestica (Suckow) Borkh. · Apple

WESTERN AUSTRALIAN DEPARTMENT OF

DE ES FR NL
21 records

Kizuri

Active

Malus domestica (Suckow) Borkh. · Apple

Wit Inge De / Eyssen Hendrik / Keulemans Johan / Nicolai Johan / Laer Paul Van

NL UA
18 records

Jeromine

Active

Malus domestica (Suckow) Borkh. · Apple

SCAFO, Jean-Jacques Feuillet

FR NL
17 records

Baigent

Active

Malus domestica (Suckow) Borkh. · Apple

PAUL BROOKFIELD_ / BARBARA BROOKFIELD_

FR NL
18 records

Prima

Active

Malus domestica (Suckow) Borkh. · Apple

The State University of New Jersey - Rutgers (US)

CZ ES FR HU LT NL +1
18 records

Luna

Active

Malus domestica (Suckow) Borkh. · Apple

Zima Jan, Louda Otto, Tupy Jaroslav,

CZ HU NL UA
18 records

Milwa

Active

Malus domestica (Suckow) Borkh. · Apple

Station de recherche Agroscope Changins Wädenswil

FR NL UA
16 records

Sekzie

Active

Malus domestica (Suckow) Borkh. · Apple

THE MAWLEY FAMILY TRUST

FR
17 records

Regalyou

Active

Malus domestica (Suckow) Borkh. · Apple

Maillard Arsene / Maillard Laurence

FR
14 records

Inolov

Active

Malus domestica (Suckow) Borkh. · Apple

LAURENS FRANCOIS

FR
15 records

Fujion

Active

Malus domestica (Suckow) Borkh. · Apple

Michelangelo Leis, Alessio Martinelli, Francesco Tagliani, Gianfranco Castagnoli (deceased)

UA
15 records

Spartan

Active

Malus domestica (Suckow) Borkh. · Apple

PALMER R.C. (CA)

CZ ES FR LT NL PL +1
19 records

Red Elstar

Active

Malus domestica (Suckow) Borkh. · Apple

BE DE ES FR HU NL +1
18 records

Elshof

Active

Malus domestica (Suckow) Borkh. · Apple

STICHTING WAGENINGEN RESEARCH-WAGENINGEN PLANT RESEARCH

BE DE ES FR HU NL +1
16 records

Maypole

Active

Malus domestica (Suckow) Borkh. · Apple

THE KENT INCORPORATED SOCIETY

BE ES FR IE NL PL
16 records

Red Topaz

Active

Malus domestica (Suckow) Borkh. · Apple

Tupy Jaroslav|Prague, CZ / Louda Otto|Pencin u Liberce, CZ

CZ FR HU NL UA
18 records

Orion

Active

Malus domestica (Suckow) Borkh. · Apple

Zima Jan, Louda Otto, Tupy Jaroslav,

CZ FR HU NL UA
19 records

Jump to page 12 23 35 46 58 69