Report No. 6:V021
Pumpkin: Cucurbita pepo 'Sorcerer'
Cucurbit powdery mildew: Podosphaera xanthii

Management of cucurbit powdery mildew with organic and conventional fungicides, 2011.

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

Additional Authors: T.N. Nguyen, W.D. Gubler

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


Geographical location: California, United States

Products Tested: Dyneamic; Flint; Fontelis; IKF-309; Quintec; Rally 40WSP; Silwet L-77; YT 699

Active chemical(s): Polyalkyleneoxide modified polydimethylsiloxane, nonionic emulsifiers, methuyl ester of C-16-C-18 fatty acids; Trifloxystrobin; Penthiopyrad; proprietary; Quinoxyfen; Myclobutanil; Polyalkaleneoxide modified heptamethyltrisiloxane; Picoxystrobin

Biological Control: 1. BPS; biopolysan; Biotectics LLC. 2. Oxidate 2.0; hydrogen dioxide; BioSafe Systems. 3. Recover RX; nitrogen, phosphoric acid, potash; Growth Products. 4. Companion; Bacillus subtilis QB03; Growth Products. 5. Antica; lactic acid; Ahcil Laboratories

Biorational Product:

Manufacturer(s): Helena Chemical Company; BASF Corporation; DuPont; ISK Biosciences Corporation; Dow AgroSciences LLC; Dow AgroSciences LLC; Helena Chemical Company; DuPont

Publication date: March 30, 2012

The American Phytopathological Society