YARMOUTH, Maine (NEWS CENTER)-- Downy Mildew is a real problem for Impatiens lovers. It showed up in the South last year, and wiped out many old-fashioned Impatiens.
You can use systemic fungicides to treat Downy Mildew, but it is active in the soil for quite some time. It is also wind-borne, so it can be spread to areas where it has not shown up before. Diseased plants will wither and die.
New Guinea Impatiens are not affected by this disease, so they are a safer bet this year. Tom Estabrook of Estabrook's in Yarmouth talks about the disease and what other plants you can use instead this summer.