Inside: caulk & seal, then sprinkle diatomaceous earth
Outside: Boiling water, jiffy corn muffin mix, or sevin in the center of the mound
Boric acid and sugar mix
I mix cornmeal and powdered sugar together and leave it out in a small pile where I see ants and it works great.
Hi Angenetta - Those little buggers are relentless, aren't they?!? This is the most effective method and all-natural spray DIY that we use with ants. It's best indoors, but will also work outside with more frequent applications. It's even been featured on Hometalk! Hope this helps! Hugs, Holly
PS - We have a FREE eBook with recipes for all of my homemade and all-natural cleaners. You can download it here --> https://pinkfortitude.com/thank#GreenClean
Here's a simple Homemade ant killer