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agronom.cc cultivar database

Diseases

Apple Leaf Spot

Malus domestica (Suckow) Borkh.

A group of apple diseases of various etiologies manifesting as necrotic or chlorotic spots on leaves, leading to premature defoliation and weakening of trees.

In the reference 95 varieties crop Apple, where this is mentioned in the description.

The main types of leaf spots include phyllosticta leaf spot (pathogens Phyllosticta mali, P. briardi), marssonina blotch (Marssonina coronaria), alternaria blotch (Alternaria alternata), and pestalotia leaf spot caused by Pestalotia malorum. The diseases vary in the nature of the lesions: from small brown spots with pycnidia to large areas with a bright yellow halo, as well as viral ribbon patterns characteristic of ACLSV.

Genetic control is most studied in alternaria blotch, where resistance is determined by the Alt locus on chromosome 11. The presence of the dominant Alt allele causes cultivar susceptibility to the fungus's AM-toxins. Molecular markers are used in breeding to identify resistant genotypes, whereas resistance to marssonina blotch is polygenic in nature, which requires the search for genomic regions responsible for tolerance.

General information about the subject — on the page Leaf spot diseases.

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.

Monalisa

Active

Malus domestica (Suckow) Borkh. · Apple

Frederico Dernadi / Anisio Pedro Camilo

FR
12 records

Luiza

Active

Malus domestica (Suckow) Borkh. · Apple

KVITSCHAL Marcus Vinicius (BR)/CRESTANI HAWERROTH Maraisa (BR)/DENARDI Frederico (BR)

FR
7 records

Isadora

Active

Malus domestica (Suckow) Borkh. · Apple

KVITSCHAL Marcus Vinicius (BR)/CRESTANI HAWERROTH Maraisa (BR)/DENARDI Frederico (BR)

FR
6 records

Daiane

Application submitted

Malus domestica (Suckow) Borkh. · Apple

Frederico Denardi c/o EPAGRI

7 records

Delicia

Active

Malus domestica (Suckow) Borkh. · Apple

Roduit Aebischer C. (FR)

CZ FR
6 records

Stark Earliest

Active

Malus domestica (Suckow) Borkh. · Apple

ES FR
8 records

LIMON MONTES

Active

Malus domestica (Suckow) Borkh. · Apple

SERIDA

ES
3 records

Akane

Active

Malus domestica (Suckow) Borkh. · Apple

CZ ES FR NL PL SI
16 records

Jm1

Application submitted

Malus domestica (Suckow) Borkh. · Apple

YOSHIO YOSHIDA^^^SHICHIRO TSUCHIYA^^^Jun-ichi Soejima

3 records

Jm7

Active

Malus domestica (Suckow) Borkh. · Apple

YOSHIO YOSHIDA^^^SHICHIRO TSUCHIYA^^^Jun-ichi Soejima

3 records

Beniminori

Application submitted

Malus domestica (Suckow) Borkh. · Apple

National Agriculture and Food Research Organization (NARO)

3 records

Poema

Active

Malus domestica (Suckow) Borkh. · Apple

LT
3 records

Maimu

Active

Malus domestica (Suckow) Borkh. · Apple

EE
3 records

Democrat

Active

Malus domestica (Suckow) Borkh. · Apple

FR
3 records

Bosanova

Active

Malus domestica (Suckow) Borkh. · Apple

LT
3 records

Alemanda

Active

Malus domestica (Suckow) Borkh. · Apple

LT
3 records

Skіfs'ke zoloto

Terminated

Malus domestica (Suckow) Borkh. · Apple

Kondratenko Tetiana IEhorivna, Kopan` Kira Mykolaivna, Kopan Volodymyr Pavlovych,

UA
2 records

DURONA TRESALI

Withdrawn

Malus domestica (Suckow) Borkh. · Apple

SERIDA

ES
1 record

Edera

Terminated

Malus domestica (Suckow) Borkh. · Apple

Boldyzheva Liubov Dmytrivna, Kopan` Kira Mykolaivna, Kopan Volodymyr Pavlovych,

UA
1 record

Delcon

Terminated

Malus domestica (Suckow) Borkh. · Apple

INCONNU (FR)

FR
1 record

CHABRI

Withdrawn

Malus domestica (Suckow) Borkh. · Apple

Michel Briot (FR)/Pierre CHARRIAU (FR)

FR
1 record