Report No. 10:SMF032
Grape: Vitis vinifera
Powdery mildew: Erysiphe necator

Management of grapevine powdery mildew with registered and experimental fungicides, trial III, 2015.

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First Author: T.T. Nguyen, University of California, Davis

Additional Authors: N.S. Morris, W.D. Gubler

Section: Small Fruits


Geographical location: California, United States

Products Tested: Vigor SeaCal; Vigor Cal; Sysstem SeaCal; Sysstem Cal; AG Copp 75; Pristine; Luna Experience; Flint; Quintec; Latron B-1956; Dyne-Amic; JMS Stylet-oil; Tactic; Regalia; WXF-15002; WXF-15001; HML32; GOP-Oil; GOP-Bran; REX; Lime Sulfur Ultra; K-Phite 7LP; Inspire Super; Microthiol Disperss

Active chemical(s): Soluble potash, calcium; calcium; phosphoric acid, calcium; phosphoric acid, calcium, copper; Cuprous oxide; Pyraclostrobin + Boscalid; Fluopyram + Tebuconazole; Trifloxystrobin; Quinoxyfen; Modified phthalic glycerol alkyd resin; Polyalkyleneoxide modified polydimethylsiloxane, nonionic emulsifiers, methuyl ester of C-16-C-18 fatty acids; Paraffinic oil; synthetic latex, 1,2-propanediol, alcohol ethoxylate, silicone polyether copolymer; Extract of Reynoutria sachalinensis; N/A; N/A; N/A; N/A; N/A; Calcium polysulfide; Calcium polysulfide; potassium phosphate; Difenoconazole + Cyprodinil; Sulfur

Biological Control: JMS Stylet-Oil; paraffinic oil; JMS Flower Farms, Inc.

Biorational Product:

Manufacturer(s): Agro-K; Agro-K; Agro-K; Agro-K; American Chemet Corporation; BASF Corporation; Bayer CropScience; Bayer CropScience; Dow AgroSciences LLC; Dow AgroSciences LLC; Helena Chemical Company; JMS Flower Farms, Inc.; Loveland Products; Marrone Bio Innovations; N/A; N/A; N/A; N/A; N/A; Or-Cal; Or-Cal; Plant Food Systems; Syngenta; United Phosphorus Inc.

Publication date: March 7, 2016

The American Phytopathological Society