You can get rid of aphids by spraying them with water with some dish soap added. Make sure you get the underside of the leaves. Do it for several days in a row, and they should be gone. I also tried ladybugs a couple of years ago
My friends thought I was crazy. You can buy a box of ladybugs and release them right after the sunset, so they don't fly away at night. It was really amusing to see ladybugs munching on aphids. But I have to say, dish soap worked better for me.