I use ground (cayenne) red pepper. Just generously sprinkle it on and around the ant hills. They will leave.
If you have pets keep them away from that area because it will burn their paws.
EDIT: This also works great if you have them in your house. Heavily sprinkle it around the entire foundation of your house on the outside for a barrier.
Last edited by bnorth; 06-11-2017 at 12:03 PM.
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