The Lawn chemicals are the chemicals which are used in our houses as well as gardens. These chemicals are used to kill the germs, pests, harmful bacteria and viruses. In lawn chemicals, pesticides, herbicides, chemicals, and fertilizers are included. These chemicals, in most cases, are designed to kill pests, germs, bacteria and viruses by ceasing their work functions. Actually, they cease their nutrition, movement in and out of individual’s body cell. When they are exposed to these micro-organisms (germs, pests, bacteria, viruses) they either directly kill them or they terminate their functions and convert them into dead organisms.