Passion vine has white dust on leaves
I live in Vancouver BC and have been very sucessful in growing a passion vine. Last year and this year it has produces an unlimited amount of flowers and has grown (what seems) several inches a day. Yesterday I went out and noticed that some of the leaves have turned yellow and withered and on others there is what appears to be white dust. I am crushed at the thought of loosing my beautiful passion vine. Could this be fungus or ???
Any thought on this would be greatly appreciated