How do you make organic fungicide at home?

How do you make organic fungicide at home?

Baking soda is a common household ingredient, and is used mainly as a fungus preventative. Combine 1½ teaspoons of baking soda with a teaspoon of vegetable oil and a gallon of water. Spray to combat powdery mildew every 5 to 10 days until the solution drips off the plants, and spray more frequently in rainy weather.

Is there a natural fungicide?

Sodium bicarbonate, or baking soda, is a natural fungicide that has been used for decades, but avoid using baking soda with horticultural oils because the sodium component can build up and become toxic to your plants. Baking soda alone is only effective against a limited number of fungal diseases, however.