Getting rid of Ants in the Kitchen

Last week while sitting in the lobby of a Dr's office I read in Birds & Bloom that you could use ground ginger sprinkled around your counter top to get rid of ants. This person said they used this hint when they had a picnic outside so she gave it a try when she got ants inside her house & it worked. Have not tried but the next time I have these visitors appear, I'm certainly going to try this hint.