Ants don’t need a large opening to find their way inside your home — the smallest crack or crevice will do just fine! TERRO® ant aerosol sprays provide a dual threat to unwanted ant visitors. They kill on contact so you can quickly eliminate the ants you see crawling across the floor. Our ant killer sprays don’t stain or leave an unpleasant odor, so you can use them indoors. They also serve as an effective barrier to discourage ants from entering your home in the first place when used as a crack-and-crevice treatment. TERRO® aerosol sprays will also get rid of other household pests such as cockroaches, bees, spiders, beetles and many others.