There has been a lot of discussion about diatomaceous earth as a pest control agent in Las Vegas. While it is a natural solution for those looking to avoid chemical pesticides, it does have a downside. The bugs have to come into direct and prolonged contact with the material for it to have an effect, so you have to spread it pretty extensively throughout the home. To be effective, the powder has to stay bone dry, so it isn’t the most effective method for a watered yard.