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Report No. 4:V142
Onion: Allium cepa
Purple blotch, Stemphylium blight, Botrytis leaf blight: Alternaria Porri;Stemphylium vesicarium; Botrytis squamosa

Screening fungicides for control of foliar pathogens of onion in Georgia, 2009.

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First Author: David Langston, University of Georgia

Additional Authors: F. H. Sanders, Jr.

Section: Citrus, Tropical, Vegetables, and Miscellaneous Crops

Keyword(s): efficacy

Geographical location: Georgia, United States

Products Tested: A16001; A15909; A8122; A7402; Scala; Omega 500F; Bravo WeatherStik; Dithane; Quadris Top; Folicur; Rovral; Pristine; Switch

Active chemical(s): Difenoconazole + cyprodinil; Unknown; Unknown; Unknown; Pyrimethanil; Fluazinam; Chlorothalonil; Mancozeb; Azoxystrobin + difenoconazole; Tebuconazole; Iprodione; Boscalid + pyraclostrobin; Cyprodinil + Fludioxonil

Biological Control:

Biorational Product:

Manufacturer(s): Syngenta; Syngenta; Syngenta; Syngenta; Bayer CropScience; ISK Biosciences Corporation; Syngenta; Dow AgroSciences LLC; Syngenta; Bayer CropScience; Bayer CropScience; BASF; Syngenta

Publication date: August 23, 2010

The American Phytopathological Society