You can buy some Roach Motels and they'll crawl into them and get stuck and die.
Also try some Borax on them.
If all else fails try to get an exterminator in as it will be money well spent. They can stop the roach problem before it get's too bad.
Believe me once you get them they multiply like crazy and are hard to get rid of once you have a lot.
- Take the borax or boric acid and place it in a container. ...
- Sprinkle or spray the borax or boric acid on target areas. ...
- Remove electrical outlet covers, dust inside the walls with borax. ...
- Cover any noted areas with a light dusting of insecticide.