Noriac
ActiveCucurbita pepo L. · Field pumpkin
Gautier Semences SAS (FR)
FR
2 records
Diseases
Powdery mildew of zucchini
Cucurbita pepo L.
A fungal disease of zucchini caused by obligate biotrophic fungi Podosphaera xanthii and Golovinomyces cichoracearum. It manifests as a white powdery coating on the upper leaf surface, which eventually spreads to all above-ground plant organs.
In the reference 333 varieties crop Field pumpkin, where this is mentioned in the description.
The pathogens Podosphaera xanthii and Golovinomyces cichoracearum can develop either individually or together, forming a mixed infection. Symptoms of the disease begin to appear on the upper surface of the leaves as localized light spots that gradually enlarge, coalesce, and transform into a dense “felty” coating, spreading to petioles and stems. Under conditions of severe infection, plant tissues become chlorotic, toughen, and die.
The development of the pathogens is favored by moderate temperatures in the range of 18–25°C, high air humidity, and dense planting that limits ventilation. Genetic resistance of the crop to the disease is most often polygenic and classified as intermediate. In zucchini breeding, the PMR label is used to indicate the ability of plants to suppress infection development, although specific alphanumeric gene designations are rarely encountered in general practice.
General information about the subject — on the page Powdery mildew.
Varieties of Field pumpkin 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.
Marta
TerminatedCucurbita pepo L. · Field pumpkin
SEMILLAS FITO, S.A.
ES
2 records
Heracles ND
ActiveCucurbita pepo L. · Field pumpkin
Syngenta Crop Protection AG
NL
3 records
Rika
ActiveCucurbita pepo L. · Field pumpkin
UNITED GENETICS SEEDS CO
PT
2 records
Romeo
ActiveCucurbita pepo L. · Field pumpkin
Gautier Semences SAS (FR)
FR
2 records
Sabaudio
ActiveCucurbita pepo L. · Field pumpkin
UNITED GENETICS SEEDS CO
PT
3 records
Mirza
ActiveCucurbita pepo L. · Field pumpkin
Tezier SA (FR)
FR
2 records
Floridus
ActiveCucurbita pepo L. · Field pumpkin
Syngenta Seeds B.V.
NL
2 records
Ola Escaladora
ActiveCucurbita pepo L. · Field pumpkin
De Bolster B.V.
NL
3 records
Balada
Protection expiredCucurbita pepo L. · Field pumpkin
ZERAIM GEDERA
GR
2 records
Kyrios
ActiveCucurbita pepo L. · Field pumpkin
Syngenta Crop Protection AG
NL
4 records
Jupiter
ActiveCucurbita pepo L. · Field pumpkin
Gautier Semences SAS (FR)
FR
2 records
Camelia
ActiveCucurbita pepo L. · Field pumpkin
HM.Clause S.A.S.
FR
3 records
Esencia
ActiveCucurbita pepo L. · Field pumpkin
INTERSEMILLAS SAU
ES
2 records
Shorouq
ActiveCucurbita pepo L. · Field pumpkin
Syngenta Seeds B.V.
NL
4 records
Kairoh
Application submittedCucurbita pepo L. · Field pumpkin
Sakata Vegetables Europe SAS (FR)/Sakata Seed Sudamerica Ltd (BR)
FR
2 records
Green Machine
ActiveCucurbita pepo L. · Field pumpkin
Enza Zaden Beheer B.V.
NL
2 records
Koniac
ActiveCucurbita pepo L. · Field pumpkin
Gautier Semences SAS (FR)
FR
2 records
Lobilly
ActiveCucurbita pepo L. · Field pumpkin
ROYAL SEEDS S.R.L.
IT
2 records
Muralla
ActiveCucurbita pepo L. · Field pumpkin
INTERSEMILLAS SAU
ES
2 records
Caravaggio
ActiveCucurbita pepo L. · Field pumpkin
SEMILLAS FITO, S.A.
ES
2 records
Olympos
ActiveCucurbita pepo L. · Field pumpkin
Syngenta Crop Protection AG
NL
4 records
Piotta
ActiveCucurbita pepo L. · Field pumpkin
HM.Clause S.A.S.
FR
3 records
Impero
ActiveCucurbita pepo L. · Field pumpkin
UNITED GENETICS SEEDS CO
PT
2 records