the Roll on bed liner is only as good as the prep work done to the bed. I put rinoliner in my 86XJ and only had it peal up were i did not do the full prepand clean in the very back.
the rest of it has lasted several for several years of hard muddy use.
You do not need any stinking poison. Get a Gecko; they love to eat roaches and other bugs.
When Uncle Sam :USAflag: sent me to live in Guam for a year. We had a house gecko living in base housing with us. Never saw one bug in the place let alone any ants. :thumbsup: Neighbor kill the gecko living in her place :nuts: and within a week she was overrun with bugs. :fs1:
:typing: http://en.wikipedia.org/wiki/Gecko