As an insecticide, it’s mostly used to kill cockroaches, ants, silverfish, termites and fleas. As an herbicide, it’s best on molds, fungi and some kinds of weeds. Like boric acid, borax is ...

Then, you wait. Resist the temptation to kill the ants you see, because they need some time to carry the boric acid poison back to their fellows. Replace with fresh drops daily, and soon ants will ...