Question: how do you get rid of white spots on sage plants?
Answer: 10 parts water and 1 part milk.
2 tsp sodium bicarbonate (baking soda) mixed with 1 quart of water (some suggest adding dish soap as a way to help the substance stick to the leaves)
Replacing the baking soda with potassium bicarbonate (beer and wine makers may know a thing or two about that ingredient)