Powdery Mildew

With this warmish and dry weather we are having at the moment, is anyone noticing some powdery mildew on any of their plants?? Here is an interesting snippet I found on facebook (austraflora page).

Powdery mildew is one of the most widespread and easily recognised plant diseases. Powdery mildews are most severe when the weather is warm and dry, and they affect virtually all kinds of plants. Powdery mildews are characterized by spots or patches of white to grayish, talcum powder-like growth.

Here is a useful treatment you can make yourself:
Mix together 1 tablespoon of baking soda with 3.5L of room temp water, along with 1-2 drops of liquid soap (this adheres the solution to the plant). Add a teaspoon of vegetable oil, then shake well to create an emulsion that will help contain the spores (and limit re-infection). Spray in the evening when it's cool, and repeat as necessary.

Why does this work? The solution changes the pH balance of the surface of the plant, making it an unsuitable environment for powdery mildew to proliferate.

Powdery mildew on pumpkin leaves