Ants Eating Plants.

The scent of plants such as sage, peppermint, spearmint and pennyroyal will help steer ants away from your garden without harming them. Mix 1/2-cup of apple jelly with 1 to 2 teaspoons of boric acid powder. ... Sprinkle a border of finely ground cinnamon around the plant that is being eaten by the ants.