Creepy, crawly and fast. Centipedes and Milipedes much like Spiders represent natural pest control as these intruders are in fact predatory. Eating pest intruders the positive impact provided by these intruders on our environment is impossible to calculate. However, many people would rather not deal with this intruder. Good or bad. with most of their protective layer focused on the top of their body, treating with a minor liquid application typically provides very effective results. However, given that this is not an infesting pest, control measures are only as effective as the pesticides lifespan. In all cases once the pesticide is exhausted, more intruders will make entry to your home or business. Quarterly treatments will provide continual control.