Looking for suggestions on getting rid of ants

Diatomaceous Earth (Fossil Shell Flour)- our house is on a concrete slab - along with various bugs which we don't mind, the tiny ants start to appear in the spring into summer in various parts of the house as well as the outdoors along the side of our house. I sprinkle the ants and their trail with the powder and they disappear within a short period of time. Works up here in Canada - it can be found in garden stores as well as pet supply stores.

I use Diatomaceous Earth also. It's been quite effective, and is completely harmless except for small pests like fleas, ticks, and ants. However, humidity reduces its effectiveness, so to make it work here, it requires frequent and diligent application. I apply it every few days, about mid-morning after the sun has heated the ground. Use a paintbrush and you can flick the powder into cracks or brush it on vertical surfaces; it doesn't take much. Been at it several months, but our really bad ant problem is largely under control and without spraying any poison around.

Don't know of anyone who sells it here in Zihuatanejo; we ordered from Amazon.