My Rose of Sharon Bushes have been covered with some fuzz and bugs.

I just searched online and identified the infestation with aphids. They are covering my six bushes plus my neighbors un-kept overgrown, crowded bushes. Didn't see anything last week but a few days ago I notices some white fuzz on some branches and today I noticed that most of the branches are covered in black tiny things and then some other larger but different color bugs. I gave my bushes a thorough spray with Listerine and dish soap but if my neighbor doesn't take care of his (and there is little hope that they will) I don't know what good this will do.

Thank you for the information about the Sevin, I will get some tomorrow. I also read that garlic water is a deterrent I will give them another solid spray for the next several days. I hope they don't move on to my vegetable garden. Thanks again.