Tried the borax paste but it never made any dent on the the ant population. Keep in mind that different ant species have different diets.
The ant dust actually kills on contact not ingestion. Check the label, that’s what mine says. I will never ever apply that liberally near a hive.
Better option would be any granules that contain both meat and sugary bait to target a range of species and the ant will take into their nest and hopefully kill the queens. Bunnings have them and they are expensive. Use exactly as directed.
I think I read on the MSDS of the NeverWet, or maybe on the internet about it being a carcinogen.