I fucked that same colony up 5 or 6 times the last days, they just change the spot. With all the rain, they're looking for dry ground. Usually I have to fuck their nest just once or twice and they get out of my lawn. But those are really desperate
The workers pick up the dust and bring it deep into the nest. You can also mix it with jelly and set out as bait near the nest. The workers ingest it and bring it back in. Might take a few repeats depending on how big the colony is.