Disease that’s killing impatiens may return for years; no treatment exists

by Connie Oswald Stofko If you had problems with your impatiens this year, the good news is that you probably didn’t do anything wrong. The bad news is that your impatiens were probably killed by a fungus-like disease called downy mildew. The disease remains in the soil, so you should plan on planting something different in that spot next year. There is no treatment. “That’s the most challenging thing about it,” said Margery Daughtrey, senior extension associate with Cornell University…