Derek Mark Edding wrote:

Hi Folks,
These bushes have been here at least ten years, and I haven't seen this
before. It doesn't seem to be harming the plants. Anyone know what
it is? Is it harmful?


FWIW, last year I had four large Euonymous (sp?) that I'd had about 20
years. Overnight, they were covered with a fine white powder. I tried
spraying them, but a couple of days later they were all dead.