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Diseases

Powdery mildew of pepper

Capsicum annuum L.

A fungal disease of pepper caused by the hemiendophytic pathogen Leveillula taurica. It manifests as chlorotic spots and subsequent leaf drop, leading to reduced yields and defoliation of the plants.

In the reference 185 varieties crop Bell pepper, where this is mentioned in the description.

The causal agent of powdery mildew on pepper is the fungus Leveillula taurica (anamorphic stage Oidiopsis taurica). Unlike most powdery mildew fungi, this pathogen is a hemiendophyte: the mycelium penetrates the plant tissues through the stomata, and the conidiophores emerge through the stomatal openings.

The disease begins with the appearance of irregular chlorotic spots on the upper side of the leaves. A characteristic whitish coating forms on the underside beneath the spots. As the infection progresses, the spots become necrotic and the leaves drop, which causes growth stunting and sunscald of the fruits due to plant defoliation.

There is no standardized classification of pathogen races. In breeding, resistance in cultivars is designated by the code Lt. Research has identified the PMR1 locus, located on the 4th chromosome of pepper, which provides genetic resistance to this pathogen and is actively used in breeding programs.

General information about the subject — on the page Powdery mildew.

Sources8

Varieties of Bell pepper 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.

Madonna

Active

Capsicum annuum L. · Bell pepper

TEZIER (FR)

HR HU NL SK
7 records

Lamuyo

Active

Capsicum annuum L. · Bell pepper

INSTITUT NATIONAL DE LA RECHERCHE AGRONOMIQUE, FR

ES FR PL
6 records

Balta

Active

Capsicum annuum L. · Bell pepper

SYNGENTA SEEDS B.V.

NL UA
5 records

Spinel

Active

Capsicum annuum L. · Bell pepper

Rijk Zwaan Zaadteelt en Zaadhandel B.V.

NL
6 records

Redline

Active

Capsicum annuum L. · Bell pepper

Rijk Zwaan Zaadteelt en Zaadhandel B.V.

NL
8 records

Red Jet

Active

Capsicum annuum L. · Bell pepper

Rijk Zwaan Zaadteelt en Zaadhandel B.V.

NL UA
5 records

Nagano

Active

Capsicum annuum L. · Bell pepper

Rijk Zwaan Zaadteelt en Zaadhandel B.V.

NL
6 records

Masetti

Active

Capsicum annuum L. · Bell pepper

Silvester de Nooijer

NL
5 records

Khaski

Active

Capsicum annuum L. · Bell pepper

Enza Zaden Beheer B.V.

NL UA
5 records

Jalisco

Application submitted

Capsicum annuum L. · Bell pepper

SEMILLAS FITO, S.A.

ES NL
5 records

Bedena

Active

Capsicum annuum L. · Bell pepper

Syngenta Crop Protection AG

NL
7 records

Yaravi

Active

Capsicum annuum L. · Bell pepper

Rijk Zwaan Zaadteelt en Zaadhandel B.V.

NL
5 records

Verdial

Active

Capsicum annuum L. · Bell pepper

Rijk Zwaan Zaadteelt en Zaadhandel B.V.

NL
5 records

Trovador

Active

Capsicum annuum L. · Bell pepper

Rijk Zwaan Zaadteelt en Zaadhandel B.V.

NL
5 records

Sway

Active

Capsicum annuum L. · Bell pepper

Rijk Zwaan Zaadteelt en Zaadhandel B.V.

NL
5 records

Sifnos

Active

Capsicum annuum L. · Bell pepper

Rijk Zwaan Zaadteelt en Zaadhandel B.V.

NL
4 records

Sibelius

Terminated

Capsicum annuum L. · Bell pepper

Rijk Zwaan Zaadteelt en Zaadhandel B.V.

NL
6 records

Sensei

Application submitted

Capsicum annuum L. · Bell pepper

Syngenta Crop Protection AG

ES NL
4 records

Saitama

Application submitted

Capsicum annuum L. · Bell pepper

Syngenta Crop Protection AG

ES NL
4 records

Quark

Active

Capsicum annuum L. · Bell pepper

Nunhems B.V.

NL UA
3 records

Pyramis

Active

Capsicum annuum L. · Bell pepper

Rijk Zwaan Zaadteelt en Zaadhandel B.V.

NL
6 records

Primalist

Application submitted

Capsicum annuum L. · Bell pepper

Rijk Zwaan Zaadteelt en Zaadhandel B.V.

NL
4 records

Palermo Rock

Active

Capsicum annuum L. · Bell pepper

Rijk Zwaan Zaadteelt en Zaadhandel B.V.

NL
5 records

Palermo Robertson

Application submitted

Capsicum annuum L. · Bell pepper

Rijk Zwaan Zaadteelt en Zaadhandel B.V.

NL
4 records