Here's a good homemade recipe to get rid of ants
Powdered boric acid (active ingredient in Roach Pruff) or good grade diatomaceous earth or ant bait traps (Terro brand actually works).
We use Terro ant killer available at diy stores, it works great. Ants have often paraded across our deck, we just put down the Terro on the provided square(s) in their pathway and they tear it up, no ants in 1-2 days, depending on the number of them. If you run out of squares, you can also cut a square from a pop box or another box where there is a finish on it that will not absorb the Terro. Best to you.
Food grade diatomaceous earth spread about will get rid of ants and any other pests with an exoskeleton. It is safe around pets and children as well.
Hi Betty: This is what I used for my ant problem, it may work for you, too.
Make a mix of 1/2 baking soda and 1/2 powdered sugar. Mix well and put around the spots they are in your garden, or inside your home, it's harmless to people and pets. For outside use, you can put it in a bottle, like a pill bottle or something like that. Cut a hole on the edge of the cap, and lay the bottle on it's side so the ants can come in and get the mix. This way, it stays dry if it should rain. They will take it back to the nest and it should kill them. I'd keep it out there all season if you can. The mix makes a gas and the ants can't pass gas, so it kills them. Anything else that eats it will just taste the baking soda and say "Yuck" and walk off. It won't hurt anything that can pass gas, so it's completely safe.
Or, you can use this organic approach, mix equal parts white vinegar and distilled water in a spray bottle and apply the solution directly on the ants near the entry point.
It helps to know what type of ant you are trying to get rid of, too. Try this site, scrolling down to see the different types of ants and how to deal with them. https://www.thespruce.com/ant-control-4127879
Hi Betty - 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