I don't know if we've just been lucky or not but we've chartered with Moorings, Horizon, Captain's Compass, Conch and Sail Caribe out of PR and have never had a roach. (Knocking on wood as we speak). We are also fanatic about packaging and cardboard and it's off the boat as soon as products are put away.

I'm sure we'll come across it at some point though, it's just a natural hazard for that area.