As RickCorey mentioned, you can soak a cotton ball with Isopropyl alcohol and wipe the leaves which should remove them if the infestation isn't too great; otherwise an insecticidal soap (which can be purchased at Home Depot, Lowes, Walmart etc.) might be necessary.
~ I'm an old gal who still loves playing in the dirt!
~ Playing in the dirt is my therapy ... and I'm in therapy a lot!