Ghost ants and many times after a big rain fall they will also appear. Similar to Terro, is Protexall Ant Killer, but instead of traps it's a blue liquid. It's a small bottle at Publix for about $4. You can put it on a piece of paper, or directly on the floor, and ants will come out of nowhere and you see lots of them die right by the puddle. The ants will vanish in a few hours.
