Go to your fav big box store and get some large dish soap bottles. Pour them at the edge of your concrete and around your foundations. they will be gone in short order. I repeat about every few years. I have not had an ant in my house in what seams like forever.
ACK!! “seems”
Sounds interesting and I will give it a try. Making ant bait is too much like cooking—work.
Now if I could find a way to stop the mosquitos from eating me alive. It gets worse as I get older and the bites are more irritating as well.