L.F.
use one cup vinegar with a squirt of dish soap and a splash of water..put in glass bowl and leave near kitchen sink. in a couple of days they will collect in bowl and ta da be gone! im not sure why this works but it does! also i was told by our terminix guy that they live in the disposal so to pour bleach down the sink, let sit ten min. then run warm water and disposal at the same time! good luck!