Report No. 9:V003
Pumpkin: Cucurbita pepo 'Lil' Pump-Ke-Mon'
Powdery mildew: Podosphaera xanthii

Management of cucurbit powdery mildew with experimental, organic and conventional fungicides, 2014

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

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

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


Geographical location: California; United States

Products Tested: Dyne-Amic; OxiDate; OxiPhos; Pyriofenone; Quadris; Quintec; Rally 40WSP; Rhyme; Silwet ECO; Timorex Gold; Topguard

Active chemical(s): Polyalkyleneoxide modified polydimethylsiloxane, nonionic emulsifiers, methuyl ester of C-16-C-18 fatty acids; Hydrogen dioxide + Peroxyacetic Acid; osphorus amono- and di-potassium salts of phcid + hydrogen peroxide; Proprietary; Azoxystrobin; Quinoxyfen; Myclobutanil; Flutriafol; N/A; Oil derived from the tea tree, Melaleuca alterniflora; Flutriafol

Biological Control: 1. Oxidate 2.0, hydrogen peroxide, peroxyacetic acid; BioSafe Systems. 2. Oxiphos; mono- and di-potassium salts of phosphorus acid, hydrogen peroxide, BioSafe Systems. 3. Timorex Gold, oil derived from tea tree, Melaleuca alterniflora, Biomor Israel.

Biorational Product:

Manufacturer(s): Helena Chemical Company; Biosafe Systems; Biosafe Systems; N/A; Syngenta; Dow AgroSciences LLC; Dow AgroSciences LLC; Cheminova; Momentive; Biomor Israel Ltd.; Cheminova

Publication date: March 20, 2015

The American Phytopathological Society