Ant Treatment For Garden. Early in the morning place a metal can over the hill. The simplest formula is to mix borax.
Be sure to treat the lawn area around the outside of the garden with fire ant bait as well. And they also speed the decomposition of organic material such as leaves and dead insects thereby fertilizing plants. For individual mound treatments with baits do not put the bait directly on top of the mound but sprinkle it around each mound.
Let it sit for a day before you mix it with two tablespoons of dish soap and a pint of water.
Worker ants from mounds located in the garden will readily forage for food many feet into the nearby lawn area. Early in the morning place a metal can over the hill. A Ant nests hills are best broken up with a fork and treated with an insecticide such as a drench or dust containing bendiocarb or deltamethrin. Most garden centres sell an ant poison which comes in gel form.