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Onion: Allium cepa
Botrytis leaf blight; Purple blotch: Botrytis squamosa; Alternaria porri

Evaluation of fungicides for control of leaf diseases in onions, 2007.

View/Print Report

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

Additional Authors: K.E. Klotzbach, J.W. Lorbeer

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

Keyword(s): IPM

Geographical location: New York, United States

Products Tested: Rovral; Cabrio; Kocide 3000; Endura; Bravo WeatherStik; Pristine; Penncozeb; Quadris; Switch; Scala

Active chemical(s): Iprodione; Pyraclostrobin; Copper hydroxide; Boscalid; Chlorothalonil; Boscalid + pyraclostrobin; Mancozeb; Azoxystrobin; Cyprodinil + fludioxonil; Pyrimethanil

Biological Control:

Biorational Product:

Manufacturer(s): Bayer CropScience; BASF Corporation; E. I. duPont de Nemours and Company, Inc.; BASF Corporation; Syngenta; BASF Corporation; Cerexagri, Inc; Syngenta; Syngenta; Bayer CropScience

Publication date: March 25, 2008

The American Phytopathological Society