The fire ants and dog

The fire ant is the thing that even the human feel the pain if got bites and so does the dog. There are tons of article on the internet about the first aid for fire ant bites but how to completely get rid of it? So, anyone knows what is the best thing to completely avoid or get rid of any species of ants especially the fire ant?

Personally, I prefer to use the home remedy, more natural stuff and you feel that your environment not polluted with some kind of chemical.

Random thinking about to draw the chalk line to whatever perimeter that surrounds the dog food container or maybe could try to spread salt or maybe the pepper or squeeze a lemon.