Downy mildew confirmed in three Connecticut counties

From Connecticut Nursery and Landscape Association: UConn Extension Field Agent Leanne Pundt says downy mildew was found on impatiens in landscapes in Fairfield, New Haven and Hartford counties.

"Infected plants should be pulled, roots and all, and destroyed, and the area should not be replanted with susceptible impatiens species," Pundt says. "Fungicide treatments are not recommended for plants in the landscape.  Allowing infected plants to remain in the landscape may allow the pathogen to overwinter as resting structures, called oospores, which may infect impatiens planted in future years.  New Guinea impatiens, coleus, begonia, or other available bedding plants are safe to replant in the affected area." 

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