Question
My jasmine has a powdery mold-like substance on it.  What is it and what can I do to get rid of it?

Answer
This disease is called powdery mildew. A commmon problem on plants. It can be controlled with a fungicide spray but the spray should be repeated every ten days or so for three applications. Here is a web link that will give information on powdery mildew and the fungicides recommended. Check with your local nursery/garden type store and ask for a fungicide for powdery mildew.

http://ohioline.osu.edu/hyg-fact/3000/3047.html