Report No. 9:V074
Watermelon: Citrullus lanatus 'Mardi Gras'
Anthracnose, Gummy stem blight: Colletotrichum orbiculare,Didymella bryoniae

Effectiveness of fungicides rotated with mancozeb against gummy stem blight and anthracnose on watermelon, 2014.

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First Author: Anthony Keinath, Clemson University Coastal REC

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

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


Geographical location: South Carolina, United States

Products Tested: Dithane F-45 Rainshield; Quadris Top; Merivon 500SC; Switch; Cabrio; Pristine; Luna Sensation; Luna Experience; Topsin 4.5FL; Inspire Super; Tanos

Active chemical(s): Mancozeb; Azoxystrobin + Difenoconazole; Pyraclostrobin and Fluxapyroxad; Cyprodinil + Fludioxonil; Pyraclostrobin; Pyraclostrobin + Boscalid; Fluopyram + Trifloxystrobin; Fluopyram + Tebuconazole; Thiophanate-methyl; Difenoconazole + Cyprodinil; Famoxadone + Cymoxanil

Biological Control:

Biorational Product:

Manufacturer(s): Dow AgroSciences LLC; Syngenta; BASF Corporation; Syngenta; BASF Corporation; BASF Corporation; Bayer CropScience; Bayer CropScience; United Phosphorus, Inc.; Syngenta; DuPont

Publication date: March 20, 2015

The American Phytopathological Society