Baking soda ( sodium bicarbonate ) is an antifungal agent and can even kill some established forms of fungus . The first recorded use of baking soda for treatment of powdery mildew on roses dates back to 1933. And that will stop fungi spores from forming. The milk will decrease the fungi by 90%, also boosting the plant’s immune system. Baking soda, or sodium bicarbonate, has been touted as an effective and safe fungicide on the treatment of powdery mildew and several other fungal diseases. Research has shown it’s effective against some kinds of black spot and powdery mildew . Keep reading and see my own DIY baking soda spray that will make things better. Recent studies confuse the … Does baking soda kill fungus? Russian plant pathologist A. de Yaczenski showed successful results using a simple mixture of baking soda … Before we get into the recipe, it’s important to mention that this remedy is best used as a preventative measure rather than a full treatment. Well, the baking soda will increase the pH levels on the leaf surface. Howard Garrett—a well-known horticultural columnist and radio personality in Dallas, Texas, recommends baking soda sprays at a concentration of 4 teaspoons (1.3 tablespoons) per gallon of water for control of powdery mildew… Thus, if you don’t want to use fungicides for your powdery mildew, you should consider a simple remedy. Hence, it will help in fighting the powdery mildew … Best of all, baking soda …