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Diseases

Downy mildew of spinach

Spinacia oleracea L.

The most economically significant disease of spinach, caused by the obligate oomycete Peronospora effusa, characterized by high race variability and the necessity of using genetically resistant varieties.

In the reference 387 varieties crop Spinach, where this is mentioned in the description.

The causative agent of the disease is the obligate oomycete Peronospora effusa, which infects spinach exclusively. The main symptoms are light green or yellowish spots on the upper side of the leaves and a characteristic lilac-gray or grayish-purple felt-like growth on the underside. Under favorable conditions (temperature 7–15 °C and humidity above 85–95%), the affected tissues dry out, and the leaves curl and die.

The pathogen exhibits high variability, leading to the continuous emergence of new races, the number of which reached twenty by 2024 (Pe: 1–20). Race monitoring is carried out by the International Working Group on Peronospora (IWGP). Varietal resistance is based on major genes and is denoted in descriptions by the abbreviation Pe, where the range indicates the list of races to which a given variety possesses resistance.

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

Sources8

Varieties of Spinach 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.

Spinacia oleracea L. · Spinach

Nunhems B.V.

NL
6 records

Longhorn

Active

Spinacia oleracea L. · Spinach

Enza Zaden Beheer B.V.

NL
5 records

Taliabu

Active

Spinacia oleracea L. · Spinach

Monsanto Vegetable IP Management B.V.

NL
5 records

Spinacia oleracea L. · Spinach

Enza Zaden Seed Operations B.V.

NL
5 records

Austin

Active

Spinacia oleracea L. · Spinach

Pop Vriend Research B.V.

NL
3 records

Freya

Active

Spinacia oleracea L. · Spinach

Vilmorin-Mikado Denmark

PL
3 records

Aardvark

Active

Spinacia oleracea L. · Spinach

Rijk Zwaan Zaadteelt en Zaadhandel B.V.

NL
3 records

Yuma

Active

Spinacia oleracea L. · Spinach

Pop Vriend Research B.V.

NL
3 records

Sumbawa

Active

Spinacia oleracea L. · Spinach

Monsanto Vegetable IP Management B.V.

NL
4 records

El Capoeira

Application submitted

Spinacia oleracea L. · Spinach

Syngenta Crop Protection AG

NL
4 records

Alameda

Active

Spinacia oleracea L. · Spinach

Pop Vriend Research B.V.

NL
3 records

Trumpet

Active

Spinacia oleracea L. · Spinach

Pop Vriend Research B.V.

NL
3 records

Borneo

Active

Spinacia oleracea L. · Spinach

Monsanto Vegetable IP Management B.V.

NL
5 records

Disko

Active

Spinacia oleracea L. · Spinach

Monsanto Vegetable IP Management B.V.

NL
5 records

Java

Active

Spinacia oleracea L. · Spinach

MONSANTO VEGETABLE IP MANAGEMENT B.V.

NL
5 records

Inca

Active

Spinacia oleracea L. · Spinach

Pop Vriend Research B.V.

NL
3 records

Formax

Terminated

Spinacia oleracea L. · Spinach

NUNHEMS

NL
4 records

Galago

Active

Spinacia oleracea L. · Spinach

Rijk Zwaan Zaadteelt en Zaadhandel B.V.

NL
3 records

Spinacia oleracea L. · Spinach

Syngenta Crop Protection AG

NL
6 records

El Rio

Active

Spinacia oleracea L. · Spinach

Syngenta Seeds B.V.

NL
8 records

Patton

Active

Spinacia oleracea L. · Spinach

BEJO ZADEN

NL
4 records

Spinacia oleracea L. · Spinach

Rijk Zwaan Zaadteelt en Zaadhandel B.V.

NL
4 records

Affluence

Application submitted

Spinacia oleracea L. · Spinach

Sakata Seed Corporation (SCC)

FR
4 records

Spinacia oleracea L. · Spinach

Syngenta Crop Protection AG

NL
5 records

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