Boiling water Boiling water is an easy, effective way to kill ants immediately. If you see ants emerging from a crack in the concrete or a hole in the ground, pour boiling water into the area. This will kill many of the ants within it.
Vinegar—whether white vinegar or apple cider vinegar—is a common ingredient in many kitchens. That's probably why many homeowners hope that vinegar or a mixture of apple cider vinegar and dish soap will kill ants. Unfortunately, it doesn't work.
Mix Borax with equal parts water and sugar to make a syrup, and leave it in the corners where you've noticed ants. This method will work to kill the entire colony in roughly 24 to 48 hours, as the worker ants will bring the liquid back to the nest.
The good news is that ants can still smell Vinegar after it is dried. Always remember that Vinegar is not a permanent solution to remove an ant infestation. It is reasonable to spread the solution thrice a week over the affected areas to remove ants slowly.
Ants hate cayenne pepper. Black pepper will work just as well too. Locate the source of the ant infestation problem, sprinkle some pepper around that area and if possible, create a wall that will stop the ants from accessing your household.
Ants do not like the strong smell of black pepper. Salt-boil salt and water into a mixture and once cooled, pour into a spray bottle and spray nooks and corners. Oranges-half fresh orange juice and half water sprayed around your home will keep the pests out and keep your home smelling nicely.
Use boiling water over the colony: This kills the ants and floods the colony. Sprinkle diatomaceous earth over it: A white powder containing skeletons of small sea creatures, diatomaceous earth acts as small shards of glass when ingested by acts, killing them from the inside.
Mix one part powdered sugar with one part baking powder, and leave the mixture in corners of your kitchen where ants are located. The ants will be drawn to the sweetness of the sugar, but it's the baking soda that will kill them when ingested.
Case in point: the popular “tip” that Windex is a bug-killer—the truth is that while Windex can technically kill small insects like ants, it's not a suitable swap for tested insecticides, says Dr. Angela Tucker, manager of technical services for Terminix.
On the other hand, plain table salt does not. It is only effective in intercepting the ants. This should not be applied on heavy ant-infestation.
Try combining three parts powdered sugar with one part boric acid. The sugar will lure the ants in and the boric acid will kill them, Pereira says. Liquid is better—adult ants prefer to drink their food—so water this stuff down a little. “I recommend this to a lot of people,” Pereira says.
Ants hate the smell of strong citrus fruits. Save your orange, lemon and grapefruit peels and scatter them around entry points. It's a natural way to deter ants without harming them.
Natural deterrents.
Salt, baby powder, lemon juice, chalk, vinegar, bay leaves, cinnamon, or peppermint oil are a few items that you have around your home that will stop ants from coming inside. Lay these out in areas where you see ants, and they'll stop using that area as an entrance into your house.
The sugar attracts the ants, and the baking soda is what kills them: It reacts with the acid in their digestive system, and they explode. Place the mixture in strategic locations and wait for the baking soda to do its thing.
If you kill the ants as they appear, there is no way to reach the rest of the colony. This is why ants keep showing up. You can't just kill the ants you see, we have to take down the whole colony.
The most widely known natural ant extermination method is using boiling water. Simply locate as many entrances to the nest as possible and pour boiling water inside. You may have to do this repeatedly until all of the ants are dead. Dish washing liquid and oil.
You will rarely spot a queen ant outside of the nest because she spends most of her life laying eggs. If the queen is out of the nest, that means it is mating season, and she's on the prowl for a mate.
For the same reason, ants won't cross a chalk line. Their pheromone trail is being temporarily disrupted, causing them to search in a different direction to find the trail again.
Moth Butterfly
The female moth butterfly will lay its eggs inside the ant colony or nest, and once the larvae hatch, they will feast on the ants. Unfortunately for the ants, moth butterfly eggs are oval and have a hard exterior, making them too heavy and impenetrable for the soldier ants.
Baking soda; vinegar; lemon juice; some detergents (and cleaning products); Tabasco sauce (and other spicy substances, such as red chili pepper, black pepper and cayenne pepper) usually repel ants to varying degrees, and you may have seen them trapped in these circles.
Straight white vinegar makes a great ant spray. You can saturate ant trails to kill on contact, or spray counters and other areas and either wipe up after a few minutes or allow the treatment to dry in place.