I have four small chile plants overwintering under a couple of T8s. I brought them inside in small pots after I cut them back to steams and very little foliage. Recently I have developed aphids on them. At first I tried pulling them off with my fingers. That didn't work, so I gave them a soap/ oil water bath. At first that seemed to do the trick, but slowly they returned. A gave them another soap and oil bath. It seamed to work but then again they reappered. Is there any thing else I can do? I'm going to be starting seedlings soon and don't need these little *%$#s around.