downy mildew :
- n any of various fungi of the family Peronosporaceae parasitic on e.g. grapes and potatoes and melons
News & Articles
- Can you protect impatiens from downy mildew?
I wrote about downy mildew (Plasmopara obducens) and impatiens (Impatiens walleriana) at the beginning of the season. Still, I've heard from several readers who bought impatiens and want to know what they can do to protect their plants.
July 6, 2013 - The Morning Call