May 15, 2017 - 10:49 AM
It sounds like pavement ants. Without seeing the ant to identify it, I can only guess. Any pesticide suitable for outdoor applications will work. Bifen IT it one that works well and is not expensive. Just mix it with water at a rate of 1 oz per gallon of water and drench the driveway crack with it. You can also spray the entire yard. Use 1 gallon of mix per 1,000 square feet of yard. Hope this helps.