Within a half hour, everything was back to normal and ants were difficult to find. What I didn't explain was that this ant prefers to tend root infesting aphids and mealybugs. It is my recommendation that you simply leave the ants alone. Their swarming behavior usually last a few minutes to an hour or two. On golf courses, especially on the short-cut turf of tees and putting greens, newly mated queen ants may dig into the soil throwing up small mounds of soil.
Superintendents often are alarmed and bring out an insecticide spray.
In reality, the morning mowing knocks off these tiny mounds and that particular set of queens will not kick out further soil. However, new swarmers on a following night will make new mounds. If insecticide sprays are to be used, I recommend waiting a week to two after the first soil mounds appear. This is to allow time for all swarming to occur. Dursban or pyrethroid sprays registered for golf course use have been effective in eliminating these founding queens.