Report No. 5:V092
Pumpkin: Cucrbita pepo 'Sorcerer'
Powdery mildew: Podosphaeria xanthii

Management of cucurbit powdery mildew with organically approved and conventional fungicides, 2010.

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First Author: Ian Bay, University of California, Davis

Additional Authors: J.D. Eynard; W.D. Gubler

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


Geographical location: California, United States

Products Tested: Dyne-Amic; Exp. 5; JMS Stylet-oil; LEM 17 SC; Material A; Material B; OE-444; Quintec; Rally; Torino

Active chemical(s): Polyalkyleneoxide modified polydimethylsiloxane, nonionic emulsifiers, methuyl ester of C-16-C-18 fatty acids; Proprietary; Paraffinic oil; Penthiopyrad; Proprietary; Proprietary; organo-modified polysiloxane; Quinoxyfen; Myclobutanil; Cyflufenamid

Biological Control: 1. JMS Stylet-oil; paraffinic oil; JMS Flower Farms, Inc. 2. OE-444; organo-modified polysiloxane; Evonik-Goldschmidt Corporation.

Biorational Product:

Manufacturer(s): Helena Chemical Company; Unknown; JMS Flower Farms, Inc.; DuPont; Proprietary; Proprietary; Evonik-Goldschmidt; Dow AgroSciences LLC; Dow AgroSciences LLC; Gowan Company

Publication date: March 28, 2011

The American Phytopathological Society