Powdery White Mildew on Roses
Powdery white mildew is caused by the fungus, Sphaerotheca pannosa and that’s the mouthful you can drop at any garden party from now on to impress the heck out of your neighbors. This parasite lives by infecting green tissue so you’ll see it on your plant’s leaves, stems and flowers and buds.
© 2012 Rose Bush Care Tips
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