Report No. 11:V067
Watermelon: Citrullus lanatus 'Royal Star'
Gummy stem blight: Stagonosporopsis citrulli

Evaluation of fungicide programs with Quadris Opti to manage gummy stem blight on fall watermelon, 2016.

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First Author: Anthony Keinath, Clemson University CREC

Additional Authors: V.B. DuBose, C.D. Conrad

Section: Citrus, Tropical, Vegetables, and Miscellaneous Crops


Geographical location: South Carolina, United States

Products Tested: Aprovia Top; Bravo WeatherStik; Dithane F-45; Gavel 75DF; Inspire Super; Luna Experience; Monsoon; Orondis; Quadris; Quadris Opti 5.5SC; Quadris Top; Ranman 400SC; Zampro

Active chemical(s): Difenoconazole + Benzovindiflupyr; Chlorothalonil; Mancozeb; Zoxamid + Mancozeb; Difenoconazole + Cyprodinil; Fluopyram + Tebuconazole; Tebuconazole; Oxathiapiprolin; Azoxystrobin; azoxystrobin + chlorothalonil; Azoxystrobin + Difenoconazole; Cyazofamid; Ametoctradin + Dimethomorph

Biological Control:

Biorational Product:

Manufacturer(s): Syngenta; Syngenta; Dow AgroSciences LLC; Gowan Company; Syngenta; Bayer CropScience; Loveland Industries; Syngenta; Syngenta; Syngenta; Syngenta; Summit Agro USA, LLC; BASF Corporation

Publication date: March 7, 2017

The American Phytopathological Society