I took in four plants that my mother-in-law was having some difficulty keeping safe in her neighborhood. She has had several plants stolen while being on her front porch. Some were beautiful specimens, others were common plants that you can get at any nursery, grocery store, hardware store,......etc. Well, two of them were from the funeral from her late parents. She asked me to take them in because of fear that these were next to bet taken. Well, of course I took them in without any hesitation, but I am having second, third, and fourth thoughts about taking in these plants. I discovered while watering them about a week ago that they are infested with some type of critter that I am not too willing to contend with. This critter is of the Blattidae family and I do not care to have them around........I can tolerate any other type of bugs, but there is something about those that I can not stomach. This is the situation...I think they are starting to migrate to my plants

!! While watering them again and my plants as well I found one that was hiding in one of my hanging baskets..........What should I do......
1. Should I ask my mother-in-law to take the plants back?
2. Should I put up with the pest and hope that it will not migrate to my plants?
3. Break out a no holds barred fight against the little creature. (Organically) of course.....if there is such a way against that particular critter?
Please help........I informed my mother-in-law about the pest and she was shocked for some reason......

. I believe she knew about the problem already....... Oh, another thing my mother-in-law has an obsession with plant saucers to catch the water from when she waters her plants.......therefor the majority of her plants are sitting in water for 2 or more days. Which of course attracts the WRONG type of insects that you don't need around

(mosquito)

I have told her that it was not good for the plants as well, but she fails to take that as good advice and contiunes with her habitual suffocation of plant roots. Sorry about the long thread.