Hi all. I am in eastern Missouri, and have had the same insect in my gardens for several years. I think it likes euonymous, because both my neighbors have that growing on their sides of our shared fence, and in the past the vines were badly infested. This year I have seen this insect -- as well as a tiny, all-white variation that camouflages itself in the white silky web it leaves behind on the stems -- on my phlox, Ozark sundrops, coneflowers, potatoes and cukes. I have found that coming at them from both sides with open palms and squashing them against the stem they are on works better than trying to pick them off since they move very fast and hop quite far.
I have been vigilent this year about monitoring them and I believe I have a mild infestation. Given that, how can I control the ones I have this year (I will be going back to work full time soon, and will not be able to spend as much time in the garden as I do now), and prevent too much damage in future years?
Hope these are appropriate questions. Thanks for the ID, anyway.