The second step is to treat problem mounds with an approved product that kills the ants on contact. ... Products such as acephate(Orthene), malathion and carbaryl(Sevin) are available as liquid concentrates for drenching fire ant mounds.
Will malathion spray kill ants?
Malathion mixed with water in simple watering can will get rid ants like a charm. Not sure if they blowed up but they was gone after one treatment. I'm thinking of getting myself a pet ant-eater.. The borax works great, cleared up 2 giant anthills in the yard, the 2 foot tall ones with the spruce needles.
What is the best insecticide to kill ants?
Terro's T300 Liquid Ant Baits are easily the best we've used. For the active ingredient, Terro uses borax, which has proven successful against ants and is not as harmful to people and pets as some of the other pesticides out there.