Report No. 10:V121
Onion: Allium cepa 'Gunisen'
Stemphylium leaf blight: Stemphylium vesicarium

Efficacy of fungicide treatments for control of Stemphylium leaf blight on onion, 2015

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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; Stemphylium leaf blight; fungicide efficacy

Geographical location: New York, United States

Products Tested: Bravo WeatherStik; Cabrio; Dithane 75 DF; Endura; Fontelis; Gavel 75DF; Inspire Super; Luna Tranquility; Merivon; Omega 500F; Pristine; Quadris; Quadris Top; Scala; Switch; Tilt

Active chemical(s): Chlorothalonil; Pyraclostrobin; Mancozeb; Boscalid; Penthiopyrad; Mancozeb + Zoxamide; Difenoconazole + Cyprodinil; Fluopyram + Pyrimethanil; Fluxapyroxad + Pyraclostrobin; Fluazinam; Boscalid + Pyraclostrobin; Azoxystrobin; Azoxystrobin + Difenoconazole; Pyrimethanil; Cyprodinil + Fludioxonil; Propiconazole

Biological Control:

Biorational Product:

Manufacturer(s): Syngenta; BASF Corporation; Dow AgroSciences LLC; BASF Corporation; DuPont; Gowan Company; Syngenta; Bayer CropScience; BASF Corporation; Syngenta; BASF Corporation; Syngenta; Syngenta; Bayer CropScience; Syngenta; Syngenta

Publication date: September 5, 2016

The American Phytopathological Society