Report No. 11:V133
Squash, scallop : Cucurbita pepo
Powdery mildew: Podosphaera xanthii

Evaluation of selected fungicides for management of powdery mildew on scallop squash, fall 2016.

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First Author: Andrew Shirley, University of Florida, GCREC

Additional Authors: Gary Vallad, Steven Kalb, Barry Hughes, Rebecca Willis

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


Geographical location: Florida, United States

Products Tested: Aprovia Top; Bravo WeatherStik; Double Nickel 55; Dyne-Amic; GWN-10250; GWN-10385; Holganix; Inspire Super; Luna Experience; Prolivo; Quintec; Serenade Optimum; Silwet L-77; Taegro 2; Torino; Velum Prime; Vivando

Active chemical(s): Difenoconazole + Benzovindiflupyr; Chlorothalonil; Bacillus amyloliquefaciens strain D747; Methyl esters of C16-C18 fatty acids, polyalkyleneoxide modified polydimethylsiloxane, alkylphenol ethoxylate; N/A; N/A; N/A; Cyprodinil + Difenoconazole; Fluopyram + Trifloxystrobin; Pyriofenone; Quinoxyfen; QST 713 strain of Bacillus subtilis; Polyalkyleneoxide modified heptamethyltrisiloxane; Bacillus subtilis var. amyloliquefacians strain FZB24; Cyflufenamid; Fluopyram; Metrafenone

Biological Control:

Biorational Product:

Manufacturer(s): Syngenta; Syngenta; Certis; Helena Chemical Company; N/A; N/A; Holganix; Syngenta; Bayer CropScience; Summit Agro USA, LLC; Dow AgroSciences LLC; Bayer CropScience; Helena Chemical Company; Isagro-USA; Gowan Company; Bayer CropScience; BASF Corporation

Publication date: August 4, 2017

The American Phytopathological Society