Get a shovel full of fireants from a different mound and dump it on the first.
Interesting idea.
In Texas at least they've been forming "supercolonies" for at least 30 years now; basically a continuous carpet of fire ants with no clear delineation or hostility between colonies, new queens just setting up shop wherever after their dispersal/mating flight.
Might be the same in Brazil too where they come from as there their particular niche is to rapidly recolonize areas after the frequent floods. If it doesn't flood again they get taken out by the competing species, predators and parasites they have down there.
Birdwatcher
