Daylillies And Roses Have White Spots

Question From: B. Fakhouri - Pontiac, Michigan, United States
Q: This year my daylillies ,mini roses and large roses have all developed white spots.I live in the. Northern area .please help.

A: If the spots look like snow your plants have powdery mildew. You should treat it with a fungicide. I prefer to use a product called ACTINOVATE. Check it out in the Yardener tool shed. Best And Happy Yardening, Nancy