The practice of various chemicals to control and eradicate pests and weeds is an important aspect of agricultural sciences. it increases crop yield and reduced post-harvest losses. Mostly, Pesticides are target oriented and do not move from the site of application, but few stay in system for quite some time period, and then enter in the food chain. The extensive use of such pesticides, results in residues in food, which has led to widespread concern over the potential adverse effects of these chemicals to human health. Pesticides used in agriculture generally include insecticides, fungicides,...