This collection features three peer-reviewed literature reviews on pesticide residues in agriculture. The first chapter outlines the ways in which pesticide use can lead to increased pest problems, such as pest resurgence and replacement, and the development of pesticide resistance. The chapter examines current strategies for mitigating the impacts of pesticides and refers to a detailed case study on the diamondback moth (DBM) to demonstrate the practical application of these strategies. The second chapter explores the threat of pesticide poisoning to human health, either via deliberate self-poisoning or via occupational exposure. It discusses how best to monitor exposure to pesticides, as well as how to minimize the human health risks that may arise as a result of their use/exposure. The authors refer to a case study on smallholder cotton farmers in the Republic of Benin to emphasise the global pesticide poisoning crisis. The final chapter reviews the environmental impacts of pesticide use in agriculture, focussing on their contribution to global human and ecological health issues. It provides an overview of how pesticides are currently addressed in emission inventory and impact assessment, and discusses the relevance of spatiotemporal variability in modelling emissions and the toxicity and ecotoxicity impacts of pesticides.

Non-formal education is an important aspect of training for agricultural extension agents and farmers. This study written as a field guide draws on long experiences of national integration production and pest management programmes in Asian countries, where the UN Food and Agriculture Organisation developed its concepts. By appropriately adapting these concepts to local field and farming situations in Ghana, the guide provides basic topics and exercises to enable the incorporation of non-formal education into training for farmers in West Africa. The guide gives additional information on the general principles of adult learning, methodology of non-formal education, teamwork, leadership and decision-making.