Powdery Mildew on Roses

Powdery Mildew is showing up on Tucson's Roses
•Mildew can be kept in check by using Funginex. It is best to spray Funginex as a preventative for mildew on a weekly basis, rather than waiting for the problem to show up. It's harder to prevent damage once it's started.
Information provided by the Tucson Rose Society