Phytoparasitica (2020) 48, 699-703

Yigal Cohen, Moshe Reuveni, Lior Gur and Shmuel Ovadia (2020)
Survival in the field of Pseudoperonospora cubensis and Plasmopara viticola after extreme hot and dry weather conditions in Israel
Phytoparasitica 48 (5), 699-703
Abstract: Unprecedented hot and dry spells occurred all over Israel for six days, from May 16 to May 21, 2020. Maximal air temperature reached 46.5 °C and minimal relative humidity reached 10%. The total number of hours with temperature of >40 °C was 45 and 41 in the coastal plain and the Judean mountains foothills, respectively. The downy mildew pathogens of cucumber and grapevine survived this extreme event, showing a rapid revival in nature soon after the heat wave. The current isolates of these oomycetes seem to be more tolerant to heat compared to the isolates of the previous century.
(The abstract is excluded from the Creative Commons licence and has been copied with permission by the publisher.)
Link to article at publishers website
Database assignments for author(s): Yigal R. Cohen, Moshe Reuveni

Research topic(s) for pests/diseases/weeds:
environment - cropping system/rotation
population dynamics/ epidemiology

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Pest and/or beneficial records:

Beneficial	Pest/Disease/Weed	Crop/Product	Country	Quarant.
	Plasmopara viticola	Grapevine (Vitis)	Israel
	Pseudoperonospora cubensis	Cucumber (Cucumis sativus)	Israel