Ants usually launched campaigns against summer kitchen sinks. Besides being annoying, small ants in kitchen can be a health risk. You can repel without using pesticides. But you have to be defensive. If you do not watch, ants return and possibly more. Check for signs of leaks in pipes that go to and from the kitchen and the smells coming from the drain. Leaks can allow food particles and sugary liquids out, attracting ants. Find out where ants are coming along their tracks.
Using vinegar, clean the sink, countertop and any other place where ants traveling. In addition to removing food residue and odors, this will eliminate the chemical trail that ants left for her friends to follow. If you discover where small ants in kitchen enter the house, sprinkle the area with a mixture of baby powder and black pepper.
Sprinkle boric acid in and around the hole by passing your house ants. For added security, add a little pepper mixture and baby powder. To keep ants try new foci of invasion, sprinkle boric acid around the entire perimeter of your house. If you do not want to use it, try cornstarch. Boric acid is a chemical that will kill small ants in kitchen, cornstarch the stifle.