In recent years there has been growing interest in evaluating the profitability of investment in projects or programs related to research and agricultural development. Donors, administrators, researchers, those involved in development programs, governments and farmers need to measure the impact of different projects, programs or institutions. There is a wide diversity of research and development projects in agriculture. One type of project is related to Integrated Pest Management (IPM) programs, which are generally presented as an alternative to the indiscriminate use of pesticides. IPM makes use of various forms of control: biological, ethological, mechanical, physical, genetic, legal and chemical, which generally imply the farmer knows the biology and behavior of pests so he or she can make appropriate management decisions. Unfortunately, few IPM projects have been sufficiently documented in terms of impact achieved. One of the reasons for this is that impact evaluation is not widely known. Few social scientists have specialized in this area. Also, in many cases, IPM programs do not include social scientists on their teams to support socioeconomic evaluation due to lack of qualified personnel or lack of funds to hire them. An alternative for overcoming this limitation is to train personnel working in IPM research and development, most of whom are agricultural science researchers or biologists, in impact evaluation methodology, concurrently with providing methodological tools for social science personnel to do this type of work. This guide aims to help fill the gap in the literature related to impact evaluation of IPM projects, which, though based on Latin American experiences, can be adapted to other realities.