PV-1635
ActiveSpinacia oleracea L. · Spinach
KWS VEGETABLES B.V.
NL
2 records
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.
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.
Masiccio
ActiveSpinacia oleracea L. · Spinach
LA SEMIORTO SEMENTI SRL
IT
2 records
Early hybrid N. 7
ActiveSpinacia oleracea L. · Spinach
IT
2 records
PV-1671
ActiveSpinacia oleracea L. · Spinach
KWS VEGETABLES B.V.
NL
2 records
Bonobo
ActiveSpinacia oleracea L. · Spinach
Rijk Zwaan Zaadteelt en Zaadhandel B.V.
NL
3 records
Caelum
WithdrawnSpinacia oleracea L. · Spinach
Nunhems B.V.
NL
3 records
Summerstone
ActiveSpinacia oleracea L. · Spinach
KWS VEGETABLES B.V.
NL
2 records
PV-1715
ActiveSpinacia oleracea L. · Spinach
KWS VEGETABLES B.V.
NL
2 records
PV-1717
ActiveSpinacia oleracea L. · Spinach
KWS VEGETABLES B.V.
NL
2 records
PV-1719
ActiveSpinacia oleracea L. · Spinach
KWS VEGETABLES B.V.
NL
2 records
PV-1721
ActiveSpinacia oleracea L. · Spinach
KWS VEGETABLES B.V.
NL
2 records
Evoque
ActiveSpinacia oleracea L. · Spinach
Enza Zaden Beheer B.V.
NL
3 records
PV-1748
ActiveSpinacia oleracea L. · Spinach
KWS VEGETABLES B.V.
NL
2 records
PV1766
ActiveSpinacia oleracea L. · Spinach
KWS VEGETABLES B.V.
NL
2 records
Opal
ActiveSpinacia oleracea L. · Spinach
KWS VEGETABLES B.V.
NL
2 records
Piktor
ActiveSpinacia oleracea L. · Spinach
ROYAL SEEDS S.R.L.
IT
2 records
PV1857
ActiveSpinacia oleracea L. · Spinach
KWS VEGETABLES B.V.
NL
3 records
Murena
TerminatedSpinacia oleracea L. · Spinach
ASGROW SEED COMPANY
IT
2 records
Strongher
ActiveSpinacia oleracea L. · Spinach
LA SEMIORTO SEMENTI SRL
IT
2 records
Tragopan
ActiveSpinacia oleracea L. · Spinach
Rijk Zwaan Zaadteelt en Zaadhandel B.V.
NL
2 records
Slate
ActiveSpinacia oleracea L. · Spinach
KWS VEGETABLES B.V.
NL
2 records
Siena
ActiveSpinacia oleracea L. · Spinach
NL
3 records
Toscane
Protection expiredSpinacia oleracea L. · Spinach
NL
SK
4 records
Boeing
ActiveSpinacia oleracea L. · Spinach
NL
3 records