Treatment for White Spots or Powdery Mildew
on Cucumber, Squash, Melon and Other Plants
Powdery mildew and other leaf mildews tend to appear when the humidity and rains come in. It starts out looking like little white powder spots on the top and undersides of your cucumber, zucchini, squash and melon plants. The white spots will grow to cover the enter leaf and spread across the vine. It will also grow on plant stems. You may also see leaf yellow spotting where the fungus is sitting.
Prevention is best. If you know when the fungus arrives in your area... spraying the susceptible crops 2x's weekly with 1 tablespoons of baking soda to 1 gallon water is best.
If you notice you have the disease, like I do in the video you want to spray a little bit differently as the goal is to kill off the fungus and stop it from spreading or reproducing. I recommend the same strength spray, you should use a quality sprayer, of 1 tablespoon baking soda to 1 gallon of water. I would spray daily for 3 days and then every 2 days for 1 week. After that I would spray 2x's weekly for prevention.
Remember to spray the tops and bottoms of the leaves. You want to soak them down. The change in PH from the baking soda is what causes the cure. It is also a good idea to remove badly infected leaves.
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