Periodic hosing works well if repeated every day or so. Certainly safer faor you nad beneficial insects than if you nuke 'em. Whether you hose or spray something toxic, you have to hit the buggers to be effective. Further, any that you don't hit will continue producing live, pregnant young every twenty minutes. Aphids are a fact of life in gardens. In order to avoid having that many, walk the garden every several days to see what's up. Then act if needed.

Ed......they're still kicking. In the 2nd pick, it's raining. Water makes them scatter. I posted in the Garden Clinic...per Julias suggestion. I'm told they're pollen beetles. They don't seem to be causing any damage to the foliage....just really ugly! I can dump them out of the flower blossoms and throw them away....seems to be the most organic means to their "end".

Those are aphids. If you don't use insecticides, natural predators such as lacewings, ladybugs and hoverflies will show up later and reduce populations. Meanwhile, if the aphids are overwhelming the plant, you can knock them off with your hands or a good spray of water. Your young Ping Dong Yue Ji rose would benefit from a good shower. The water will also wash off the aphid's sticky "honey dew" that can attract ants. The white objects are aphid carcasses. I don't worry about aphids as much as I used to. I want the beneficial insects well fed so that they will reproduce and take care of the thrips that arrive later in the season.

Yep, aphids. The best way to get rid of them is to look around for Lady Bugs (or other beneficials that feed on soft bodied insects.) If you see them, don't do anything. If you don't see them, just spray them off with a stream of water. The water needs to spray hard enough to knock them off (they have a tough time finding their way back up the plant,) but not so hard to damage the plant. If you only have a few plants, a spray bottle usually works just fine.