This project is an attempt to explore in detail the constraints of marketing agrochemicals or pesticides in Nigeria. Pesticides are the indispensable agricultural inputs for the control of those species or pests which include insects, weeds, diseases, fungi and other life forms which by their action become inimical to the interest of man. The agrochemicals sector plays a very crucial role by providing pesticides to the Nigerian former for the efficient and effective control of these pests so as to achieve the desired increased productivity on the farm which will translate into more food to feed the ever-increasing population of the country. In this research effort has been made at reviewing the important role the agrochemicals sector plays in the overall agricultural growth and economic development of Nigeria. The sector which has a long history dating back to the 1940's presently has about 10 operating companies marketing over 60 different products with an annual turnover averaging about one billion Naira. These companies distribute these pesticides through various distribution channels to the ultimate consumer - the farmer. In carrying out these activities the sector faces a myriad of constraints essentially caused by lack of a well-defined and committed government policy and legislation on its operation. Problems of various forms that are political, economic, social, technical, managerial and environmental in nature have hindered the sector from getting effectively and efficiently organised to deliver the desired level of consumer satisfaction. Following the findings of the research, recommendations have been made on how to get the agrochemicals sector better organised to face the challenges of the future in contributing its quota towards making Nigeria self-sufficient in food production for internal consumption and export.