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Pumpkin: Cucurbita pepo 'Sorcerer'
Powdery mildew: Podosphaera fusca

Management of cucurbit powdery mildew with organic and synthetic fungicides, 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: Citrus, Tropical, Vegetable, and Misc. Crops


Geographical location: California, United States

Products Tested: HiWett; Flint; Kumulus; LEM 17 SC; Procure; Quintec; Rally; Silwet L-77

Active chemical(s): Polysiloxane polyether copolymer & alcohol ethoxylate; Trifloxystrobin; Sulfur; Penthiopyrad; Triflumizole; Quinoxyfen; Myclobutanil; polyalkyleneoxide modified heptamethyltrisiloxane + allyooxypolyethylene glycol methyl ether

Biological Control: 1) Actinovate; Streptomyces lydicus WYEC108; Natural Industries, Inc. 2) HiPeak; potassium dihydrogenorthophosphate + dipotassium hydrogenorthophoshate; Rotem Amvert Negal, LTD. 3) Nutrol; phophate + potash; Rotem BKG. 4) JMS Stylet-oil; parafinnic oil; JMS F

Biorational Product:

Manufacturer(s): First Choice; Bayer CropScience; BASF Corporation; DuPont; Chemtura Corporation; Dow AgroSciences LLC; Dow AgroSciences LLC; Helena Chemical Company

Publication date: March 26, 2010

The American Phytopathological Society