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[FONT=Arial, Helvetica, sans-serif]3. You can use coffee grounds, chili powder, cinnamon, peppermint or black pepper. All deter ants and if you pour coffee grounds directly on an anthill, they will eat the coffee grounds and implode.
I put some coffee grounds on a fire ant mound. Hope it works. Would be fun to watch those little bastards implode. [/FONT]
If vinegar (acetic acid) and acetone count, gasoline totally counts. 3 organic natural compounds (or blend of natural compounds) that act as brutally effective chemical weapons when applied to ants. Vinegar is just less permanent. It kills the ants it touches, then it evaporates away and other ants come back.