(pun intended) DiatomaceousEarth is made from the grinding up the remains of teeny tiny aquatic creatures called diatoms into a fine powder. This powder is safe for humans (but make sure you wear a mask while applying) and pets but kills insects like fleas and ticks! Put the powder around the outside of your house and reapply after it rains to keep those annoying insects at bay! Have you used DiatomaceousEarth before? Let us know! ⠀ .⠀ .⠀ .⠀ .⠀ ⠀ ⠀