This is my own spin on Ed Rosenthal's Powdery Mildew Brew.
1 L of warm water
1 part Milk to 9 parts water
2 teaspoons Baking Soda
A few drops of Peppermint Castille Soap
1 Teaspoon liquid seaweed or kelp (my own addition)
Just milk and water is sufficient, the other stuff isn’t doing anything combined with lactose as they become inert. But I’m glad I got a solution that works for u!!