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Grape: Vitis viifera 'Chardonnay clone 4'
Bunch rot: Botrytis cinerea

Fungicide programs for control of Botrytis bunch rot in grape, 2009.

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First Author: I.S. Bay, University of California, Davis

Additional Authors: C.N. Janousek, R.W. Herche, W.D. Gubler

Section: Small Fruits


Geographical location: California, United States

Products Tested: Adament; Botran 75W; Elevate; GWN-4620; GWN-4700; Inspire Super; LEM 17 SC; Luna Experience; Luna Privilege; Mettle 125ME; Pristine; Rubigan; SilverDYNE; Vangard

Active chemical(s): Trifloxystrobin + tebuconazole; Dichloran; Fenhexamid; Unknown; Unknown; Difenoconazole + cyprodinil; Penthiopyrad; Fluopyram + tebuconazole; Fluopyram; Tetraconazole; Pyraclostrobin + boscalid; Fenarimol; Colloidal silver; Cyprodinil

Biological Control: 1) JMS Stylet-oil; paraffinic oil; JMS Flower Farms, Inc. 2) OM2, paraffinic oil (JMS Stylet-oil) + OE-444 (oil-based adjuvant); OE-444:DuGassa/Goldschmidt 3) QRD-146; Bacillus subtilis; Agraquest, Inc. 4) Serenade MAX; Bacillus subtilis; Agraquest, Inc.

Biorational Product:

Manufacturer(s): Bayer CropScience; DuPont; Arysta; Gowan Company; Gowan Company; Syngenta; DuPont; Bayer CropScience; Bayer CropScience; Isagro-USA; BASF Corporation; Gowan Company; World Health Alliance International Inc.; Syngenta

Publication date: March 26, 2010

The American Phytopathological Society