Boric acid (Borax) is the most common ingredient in house ant control products, and get this: it's abolutely 100% natural. the best way (in my opinion) to use boric acid is to mix 1 cup of warm water with 1/2 cup of sugar, and 2 tablespoons of boric acid. Then soak the boric acid up with cotton balls and place those cotton balls near any trails the ants have estabilished in your home.
Home Remedies For Ants
Boiling Water
Put a quick end to ants that are ruining your garden or invading the house itself with one of the quickest home remedies for ants.
Locate the ant hills and pour a kettle of boiling water down each of them.
Instant Grits
Take 1 tablespoon of Instant Grits and sprinkle it over each ant mound.
Duct Tape
This is one of the most effective home remedies for ants that are destroying your trees, plants and shrubs. Wrap a piece of Duct Tape around the trunk of the tree or plant, sticky side out.
Yeast Molasses Sugar Mix
Mix together 1 part sugar, 1 part active yeast and 2 parts molasses. Drop the mixture, 1 teaspoon at at time, onto small pieces of paper.
Strategically place the pieces of paper along ant trails or where the ant problem is obvious. This is one of the safest home remedies for ants because it contains no chemicals.
Garlic Onion Pepper Mix
Take a quart of water and add 1 clove of garlic, 1 small onion and 1 tablespoon of cayenne pepper. Let that mixture set there for about 1 hour.
Next add 1 tablespoon of liquid dishwashing soap. Put the concoction in a spray bottle and spray it around the house where you have ant problem areas. This is also one of the safer home remedies for ants.
Salt
Janice from South Carolina writes: "For control of ants in the home, find the infested area and the source or trail where they are coming from, and use household table salt. Sprinkle around window sills, baseboards, door thresholds, anywhere where needed.
For some reason they will not pass the area that's been treated (a barrier). Test it out on a area where you see ants and make a circle of salt around them, and you will see that it repels them. This is one of the safest home remedies for ants".
Borax
Debbie from Wartrace, Tennessee writes: "Mix 20 Mule Team borax and sugar water to make a trap or sprinkle the 20 mule team borax on the ant trail of ants and they take the borax bake to the nest and kills them all."