Frankly I have a phobia to these critters, even trying to find some info made me shake....
Prevention--Close off all cracks around pipes and electric lines where roaches enter the house by using cement, screening, or Brillo pads. Caulk small cracks along baseboards, walls, cupboards, and around pipes, sinks, and bathtub fixtures. Seal food tightly. Rinse food off dishes that are left overnight. Do not leave pet food out overnight.
Cut Hedge Apples (Osage Orange) in half and place several in the basement, around in cabinets, or under the house to repel roaches. Osage Orange is a fast growing shrub which can be grown as a hedge around homes and aviaries.
Build a cockroach trap. Smear a thin layer of Vaseline around the inside lip of a pint jar to a width of about 2 inches. Place the jar upright, with bait inside, in an area frequented by cockroaches. Apple and potato make excellent bait for American, smoky-brown, and brown-banded roaches, while German roaches prefer banana peel. Change the bait often because fresh food is more appealing to roaches. Another trap can be made by dusting the inside of a jar lightly with talcum powder and using the same bait food. Roaches entering the jar are unable to climb back out over the petroleum jelly or talcum powder barrier.