MAGGOTS

Once every few weeks my wife and I have an invasion of maggots on the kitchen floor. My wife is Korean and is a cleaning fanatic, these maggots are not coming from the trash but seem to be coming from under the kitchen cabinets. I tore the area of the cabinets out under the sink and no maggots. For more than two years this has been going on. They come, we clean them up and everything is ok for a few weeks then they are back for a few days. We don’t have flies in the house or any other bugs. Our floor is cleaned throughout the house at lease once a day. I have been in the crawl space underneath the kitchen and nothing is there.