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Pumpkin: Cucurbita pepo; ‘Magician’ ‘Howden’
Powdery Mildew: Podosphaera xanthii

Monitoring ‘practical’ resistance development to fungicides used for the control of cucurbit powdery mildew on pumpkin in OH, 2008.

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First Author: J. R. Jasinski, Ohio State University Extension.

Additional Authors: L. H. Rhodes, S. A. Miller, R. P. Precheur

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

Keyword(s): fungicide insensitivity; DMI, Strobiluron

Geographical location: Ohio, United States

Products Tested: Cabrio; Endura; Flint; Microthiol Disperss; Nova; Pristine; Procure; Quadris; Quintec; Topsin M

Active chemical(s): Pyraclostrobin; Boscalid; Trifloxystrobin; Sulfur; Myclobutanil; Boscalid + pyraclostrobin; Triflumizole; Azoxystrobin; Quinoxyfen; Thiophanate-methyl

Biological Control:

Biorational Product:

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

Publication date: March 30, 2009

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