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MSU posts downy mildew on impatiens backgrounder


February 24, 2012
By Mary K. Hausbeck Michigan State University Extension Department of Plant Pathology

Feb. 24, 2012 — Michigan growers first learned of downy mildew on
impatiens in 2004 when this disease wreaked havoc in many of their
greenhouses.

Feb. 24, 2012 — Michigan growers first learned of downy mildew on impatiens in 2004 when this disease wreaked havoc in many of their greenhouses. After a couple of years, disease scouting and fungicide use appeared to pay off and downy mildew on impatiens no longer seemed to be a major threat. Today, downy mildew of impatiens has everyone’s attention, especially with the current outbreak in both greenhouses and the landscape in Florida.

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