They might not be able to poison them legally anyway, the labels on the poison bags have been changed and some you can not use out in the open like a pheasant pen
The chemical is maybe residual for 3-6 months in a lab but in a home I can't see it lasting that long with the traffic of people walking over it all the time
Ficam w and bed bugs decent???? Really?? Thought it was well known it's shocking on them, they are bringing out a replacement for stingray and cimetrol