Protect you home from pesky ants by preventing them from getting inside in the first place! TERRO® offers ant dust and ant bait granules that provide effective defense against ant invasions. TERRO® Ant Dust is ideal for spot treating tiny cracks and crevices around doors, windows and other tight spaces where ants hide. Our waterproof ant powder is useful outdoors, as rain will not wash it away. This ant killer also works great for other common household pests such as spiders, cockroaches, wasps, silverfish and many others.