Getting Rid of Ant Hills

I had a bad ant problem in Georgia when I lived there. Then, in a natural homeowner's sort of book, I read that boiling orange peels in water and dousing the ant hill with it will take care of the problem. It did! I boiled water and orange peels in a giant pot, and poured the water over the ant hill. Worked pretty well - I think the colony came back once or twice, but after doing it a few times it never did again

9 parts karo syrup, 1 part 20 mule team Borax in a squirt bottle (about). Warm just a little to dissolve. Put in areas your pets won't be able to eat it. Cracks, in the ant hole or around crevices. Be patient. They eat it for maybe up to a week and carry it back to the nest. Kills queen and all. Queens can produce other queens for up to 20 years. Kill the colony.