PDMR



Report No. 9:V101
Onion: Allium cepa 'Safrane'
Downy mildew; Stemphylium leaf blight: Peronospora destructor; Stemphylium vesicarium

Efficacy of fungicide treatments for suppression of downy mildew/Stemphylium leaf blight complex on onion, 2014.

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First Author: C.A. Hoepting, Cornell Cooperative Extension Vegetable Program

Additional Authors:

Section: Citrus, Tropical, Vegetable, and Misc. Crops

Keyword(s): onion; downy mildew; Stemphylium leaf blight

Geographical location: New York, United States

Products Tested: HiWett; Quadris Top; Pristine; Inspire Super; Tanos; Reason; Luna Tranquility; Merivon; Dithane 75 DF; Revus; Ridomil Gold Bravo; Fontelis; Phostrol; Scala

Active chemical(s): Adjuvant; Azoxystrobin + Difenoconazole; Boscalid + Pyraclostrobin; Difenoconazole + Cyprodinil; Famoxadone + Cymoxanil; Fenamidone; Fluopyram + Pyrimethanil; Fluxapyroxad + Pyraclostrobin; Mancozeb; Mandipropamid; Mefenoxam + chlorothalonil; Penthiopyrad; Phosphorous acid; Pyrimethanil

Biological Control:

Biorational Product:

Manufacturer(s): Loveland Products; Syngenta; BASF Corporation; Syngenta; DuPont; Bayer CropScience; Bayer CropScience; BASF Corporation; Dow AgroSciences LLC; Syngenta; Syngenta; DuPont; Nufarm Americas Inc.; Bayer CropScience

Publication date: August 1, 2015



The American Phytopathological Society