Report No. 6:OT016
Impatiens: Impatiens walleriana 'Super Elfin White'
Impatiens downy mildew: Plasmopara obducens

Efficacy of fungicides and timing of application on the management of impatiens downy mildew, 2011.

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First Author: Colleen Warfield

Additional Authors: A.E. Field

Section: Ornamentals and Trees


Geographical location: Illinois, United States

Products Tested: Adorn; Protect DF; Disarm 480SC; Segway; Vital; Stature SC; Fenstop; Subdue MAXX

Active chemical(s): Fluopicolide; Zinc ion + manganese ethylenebisdithiocarbamate; Fluoxastrobin; Cyazofamid; Potassium phosphite; Dimethomorph; Fenamidone; Mefenoxam

Biological Control: 1. Vital; potassium phosphite; Luxembourg Industries Ltd.

Biorational Product:

Manufacturer(s): Valent USA Corporation; Cleary Chemical Corporation; Arysta; FMC Corporation; Luxembourg Industries Ltd.; BASF Corporation; Olympic Horticultural Products; Syngenta

Publication date: March 30, 2012

The American Phytopathological Society