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Grape: Vitis vinifera 'Chardonnay'
Powdery mildew: Uncinula necator

Fungicide control of grape powdery mildew, trials II and III, 2009.

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First Author: I.S. Bay,

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

Section: Small Fruits


Geographical location: California, United States

Products Tested: Adament; Champion; Flint; Foliar Supreme; GWN-4617; HiWett; Inspire Super; Kumulus; Microthiol Disperss; NuFilm P; Phyton-016-B; PrevAm; Pristine; Quintec; SilverDYNE; Topguard; Unicorn; Luna Privilege; Luna Experience; Vintage; Vintre

Active chemical(s): Trifloxystrobin + tebuconazole; Copper hydroxide; Trifloxystrobin; Phosphoric acid + potash + sulfur; Unknown; Polysiloxane polyether copolymer, polyoxyethylene-polyoxypropylene copolymer & alcohol ethoxylate; Difenoconazole + cyprodinil; Sulfur; Sulfur; Poly-1-p-menthene; Copper sulfate pentahydrate; Sodium tetraborohydrate decahydrate; Pyraclostrobin + boscalid; Quinoxyfen; Colloidal silver; Flutriafol; Tebuconazole + sulfur; Fluopyram; Fluopyram + tebuconazole; Fenarimol; Alcohol ethoxylate

Biological Control: 1) OM2; paraffinic oil + OE-444 (an oil-based adjuvant); JMS Flower Farms, Inc.,OE-444:DuGassa/Goldschmidt. 2) JMS Stylet-oil; paraffinic oil; JMS Flower Farms, Inc. 3) Purespray Green; petroleum oil; Petro-Canada. 4)Regalia; Reynoutria sachalinensis extract

Biorational Product:

Manufacturer(s): Bayer CropScience; Nufarm Americas Inc. (formerly Agtrol International); Bayer CropScience; First Choice; Gowan Company; First Choice; Syngenta; BASF Corporation; Cerexagri, Inc; Miller Chemical & Fertilizer Corp.; Phyton Corporation; Oro Agri, Inc.; BASF Corporation; Dow AgroSciences LLC; World Health Alliance International Inc.; Cheminova; Sulphur Mills, Ltd; Bayer CropScience; Bayer CropScience; Gowan Company; Oro Agri, Inc.

Publication date: March 26, 2010

The American Phytopathological Society