The book Development of Eco-friendly Agrochemicals as a Modern Agricultural Alternative presents the agricultural panorama since its establishment until today, highlighting the difficulties and problems it caused and has faced. The authors take a his torical approach, in which, simply and directly, the importance of the development of world agriculture is highlighted, as well as emphasizing the need for the creation and dissemination of alternative techniques for the maintenance of agricultural p roductivity. In this work, difficulties encountered in agriculture, such as resistance of weeds, pests and diseases to agrochemicals are highlighted, including the economic damages that it has caused. In addition, the environmental and human health p roblems that agrochemicals have promoted are addressed. The production of Eco-friendly Agrochemicals is presented as an alternative to the use of synthetic agrochemicals and bioassays as a methodology for studying potential molecules, highlighting th e essays of phyto-cyto-genotoxicity and mutagenicity using Lactuca sativa, Allium cepa and Sorghum bicolor as model plants.