This weekend I spotted every gardener's worst nightmare in my yard: powdery mildew on my asters. This fungal disease can be extremely hard to get rid of, so I've been desperately searching for a solution to save my plants. That's when I stumbled across a retro gardening hack: DIY milk spray.
It's one of the oldest tricks of in the book for getting rid of powdery mildew, essentially acting as an organic fungicide. All you have to do is mix milk with water to create a spray that forms a protective barrier on leaf surfaces. This inhibits the growth of powdery mildew, acting as a preventative measure to apply at the first signs of disease.
