Downy Milldew on Impatiens

Impatiens Downy Mildew: Guidelines for Landscaper, Ball®
 http://www.ballhort.com/Landscapers/tips.aspx?articleid=16#article

Impatiens Downy Mildew: Guidelines for Growers, Ball®
www.ballhort.com/pdf/ImpatiensDownyMildewGrowerGuidelines.pdf