Now that I have the aphid problem in our garden as close as possible to completely controlled with plain soap and water, other than the honeysuckle on which I used Trounce, I can deal with yellowed, spotty leaves appearing on the honeysuckle, but on nothing else. If this is an insect problem, they are microscopic, as I have examined the leaves very closely; there seems to be nothing attached to, or crawling on, the leaves and there are no rolled-up leaves concealing nests. Is this a plant disease? I have read of baking soda, as well as milk and water for fungus.
Gee, I have the same problem and would like to hear somebody pipe in as to what to do to fix this problem.