 You can always go the pesticide route with ants, but ants live outdoors. That's just where they're going to be, and you can do a pesticide, but chances are they're going to come back a week later. Some people try the various bait traps and such. We usually only recommend those if we find them foraging inside. Kate says she gets a lot of calls from people whose homes have been invaded by foraging ants. Now you'd think a simple solution would be one of those poisoned bait products.