If you mean, do CP's in the house get rid of bugs, I would have to answer they really don't, in most cases. Rather the opposite I think!
I thought having Sarracenia outdoors would take care of the wasp problem in the area. Well, they did: for the neighbors! But for me, they brought clouds of them. If you like flies buzzing around, have a few trays of VFT sitting there, they will call them from far and wide. They are very good at what they do!
I will say that N. ventricosa literally wiped out an ant hive singlepitcheredly: each 3 inch pitcher was half full of them, and they continued to march in a hypnotized line into the pitchers until there were no more. Burp.