I had some springtails in my CP pots, although they may be a food source, but decided to get rid of them as i was told by an entomologist that they feed on roots. Also my U. longifolia wasn't looking too healthy and I suspect the springtails had something to do with it.
Found out by chance that spraying a pesticide called Conserve was very effective. Only 1 spray and they were gone. Here's a quote from the manufacturer, " Spinosad, the active ingredient in Conserve, is derived from the fermentation of a naturally occurring organism, uniquely combining the efficacy of synthetic insecticides with the benefits of biological insect pest control products".