There is a guy here in South Florida who has a newspaper column- called the Swamp Gardener. He gave the formula for an excellent anti-ant ( and other bug treatment) - I use this and its awesome, gets rid of all the ants.
1.)Mix Naptha Bar soap ( one bar-its carried here in the supermarkets) with warm water, until dissolved in a large glass jar. You can put this aside and save it.
2.) When ready to use mix 1/4 cup of this to one gallon water, add a small amount of hot sauce. Spray liberally.