Check out PestFacts.org. This web site is a great resource for why we as pest professionals must resort to using chemicals in some instances. A great analogy is in medicine. Sometimes we have to use medications to solve a problem. What a great doctor does is first assess the situation and then try to solve the illness without drugs. This is what a responsible pest professional should also be doing at your home or business. If however, pesticides are necessary they must successfully complete as many as 120 government-mandated tests before the Environmental Protection Agency considers label approval and product registration. Make sure your pest professional follows this philosophy so that we can all help protect human health safety and environmental quality.