I did a search on ants in this forum and I figured I'd give you a heads up on what works well for me. My problem with ants is always after the camper has been sitting over the winter. We'll get it ready for camping season to check all systems and these little guys show up in the kitchen area (no food is ever left in the camper) and sometimes the bedroom. The first instinct is to spray but don't, you only kill the ones you see. You need to use the ones you see as little assassins who go back to the nest to wipe out everybody. You must use Combat Ant Killing Gel: COMBAT 1 oz. Ant Killing Gel Syringes (12-Pack)-97306 at The Home Depot
Or buy it where ever you can find it. Put this stuff where ever you see them coming from and get ready. Soon you'll have a boatload of ants eating this stuff. It will creep out the wife and you'll be tempted to spray. Don't! The eating ants will take the gel back to where ever they came from to share with the others. Be patient and don't do anything for a few days. Soon they'll disappear with a few dead bodies here and there that need to be vacuumed up and a wet wipe down will clean up any left over gel. If you still see a few live ones after a few days, repeat. This stuff really works well.