powdery mildew

In the Garden: How to manage powdery mildew on garden and indoor plants

Whether gardening indoors or outdoors, gardeners are likely to encounter powdery mildew on one or more of their plants. First, a white powdery substance will appear on the surface of leaves, stems and flower petals. As the powdery mildew expands and covers the leaves, it blocks sunlight from reaching the