i find that garden ants are a problem and they multiply really fast. They also eat away some of the vegetable plants i put in my garden. At times, i didn't realize but i get bitten by ants while working in my backyard because i didn't see the ant hills hidden beside the soil. I tried pouring boiling water on the ant hills but they keep coming back and building even bigger ant hills. I don't have all the time to stamp them out with my foot and i tried garlic pepper powder on them but it seemed to have no effect on them. Even those red chili pepper powder couldn't kill the ants. They keep coming back in greater numbers.