RECIPE #36 REPEL ANTS Categories: Garden, Bugs, Repellents Things that repel ants... Cinnamon, charcoal, mineral spirits, boric acid, ginger, borax, bone meal, pennyroyal (that's a plant), citrus peels, ant lions (they eat ants but not sure about fire ants). Some other things that work on ants that have been reported to have success is coffee grinds, lemon juice, vinegar, ammonia.. Building up soil through proper pH control, fertilizing will discourage ant activity.. Letting grass grow a little taller helps. A healthy nonacidic lawn has been documented to have less problems with ants than an acidic lawn. But we know many places such as Fl with naturally acidic soil plus many plants prefer acidic soil, so it seems we might have to learn to just keep them out of areas we prefer them not to be in.. They are also indicators of other insects, such as aphids, scale insects to name a couple. Any that excrete (honeydew) a sticky substance that the insects leave behind that the ants love... Marion H says ants don't like mint either pour mint tea around or plant some mint(careful though mint will take over given a chance. Another recipe for ants: fill a spray bottle 1/3 with Ajax dishsoap, add some Dr. Bronners peppermint soap and a few drops of pet flea shampoo. Top off with water. trace the ants back to their source and apply liberally until they give up and move away! -----