Giambo
ActiveCucurbita pepo L. · Field pumpkin
SATIVA SOC. COOP. A R.L.
IT
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.
Apollo
TerminatedCucurbita pepo L. · Field pumpkin
PEOTEC S.R.L.
IT
2 records
Pattymat
ActiveCucurbita pepo L. · Field pumpkin
UNITED GENETICS SEEDS CO
PT
2 records
Alexandria
ActiveCucurbita pepo L. · Field pumpkin
OI ZHANG
UA
2 records
Faber
ActiveCucurbita pepo L. · Field pumpkin
MERIDIEM SEEDS S.L.
IT
2 records
Metis
ActiveCucurbita pepo L. · Field pumpkin
Enza Zaden Beheer B.V.
NL
4 records
Cucurbita pepo L. · Field pumpkin
Gautier Semences SAS (FR)
FR
2 records
Cynder
Application submittedCucurbita pepo L. · Field pumpkin
SAKATA SEED AMERICA INC US
FR
2 records
Kopana
TerminatedCucurbita pepo L. · Field pumpkin
Enza Zaden Beheer B.V.
NL
3 records
Cassiopee
ActiveCucurbita pepo L. · Field pumpkin
Gautier Semences SAS (FR)
FR
2 records
Aeolos
ActiveCucurbita pepo L. · Field pumpkin
UNITED GENETICS ITALIA S.P.A
PT
2 records
Coleman
ActiveCucurbita pepo L. · Field pumpkin
INTERSEMILLAS SAU
ES
2 records
Sonora
ActiveCucurbita pepo L. · Field pumpkin
UNITED GENETICS SEEDS CO
PT
2 records
Lingodor
ActiveCucurbita pepo L. · Field pumpkin
Gautier Semences SAS (FR)
FR
2 records
Keesha
ActiveCucurbita pepo L. · Field pumpkin
Enza Zaden Beheer B.V.
NL
3 records
Round Beauty
ActiveCucurbita pepo L. · Field pumpkin
UNITED GENETICS SEEDS CO
PT
2 records
Haranita
ActiveCucurbita pepo L. · Field pumpkin
MERIDIEM SEEDS S.L.
ES
2 records
Lingote
ActiveCucurbita pepo L. · Field pumpkin
INTERSEMILLAS SAU
ES
2 records
Artemis
ActiveCucurbita pepo L. · Field pumpkin
DIAMOND SEEDS S.L.
ES
2 records
Delhirium
ActiveCucurbita pepo L. · Field pumpkin
Gautier Semences SAS (FR)
FR
2 records
Delhixir
ActiveCucurbita pepo L. · Field pumpkin
Gautier Semences SAS (FR)
FR
2 records
Petronio
ActiveCucurbita pepo L. · Field pumpkin
ZETA SEEDS S.L.
IT
2 records
Spyro
ActiveCucurbita pepo L. · Field pumpkin
SAKATA SEED AMERICA INC US
FR
2 records
Doretta
ActiveCucurbita pepo L. · Field pumpkin
Vilmorin SA (FR)
FR
2 records