· to effectively use a milk spray against powdery mildew, i mix milk with water and apply it to plants showing signs of infection. Use milk sprays with gardening practices such as tool sanitation and avoiding overhead watering to prevent mildew. Its thought that the proteins found in milk react with the sun to act as an antiseptic. For large applications, you can put the solution into a garden sprayer. · use a milk and water dilution to stop powdery mildew from spreading on your plant’s leaves and stems. Regular application as a preventative measure helps keep the plants healthy and mildew-free. Start spraying in spring or at the first sign of mildew , reapplying every week or two. For managing and avoiding powdery mildew, milk spray works well as an alternative to traditional fungicides. Learn how to make a milk spray for powdery mildew and keep your plants healthy and thriving. Some use yogurt to get a handle on mildew in their gardens for similar reasons. It only requires two basic ingredients: · research shows that cows milk mixed with water prevents powdery mildew when applied regularly and thoroughly to plants. · discover how to use milk for powdery mildew treatment and prevention in your garden! Spray the milk solution onto the plants, lightly coating all surfaces. · if you notice powdery mildew in the spring or fall, spray the infection with the milk solution once a week or every 10 days. Follow these 15 easy steps to make, use, and maximize the benefits of this natural remedy for garden protection. · mix the milk solution in an ordinary pump spray bottle. Spray directly on tomatoes, pumpkins, apples, and more.