Dr Robert L. Zimdahl is Professor Emeritus at Colorado State University, USA. He is a Fellow of the Weed Science Society of America, Western Society of Weed Science, American Society of Agronomy, and former Editor of Weed Science. He has published on weed science, including the standard text Fundamentals of Weed Science, currently in its fifth edition. The sixth edition will be available in 2023. Dr Zimdahl is also editor of Integrated weed management for sustainable agriculture, published by Burleigh Dodds Science Publishing in 2017.

• Part 1 General1.What is agricultural ethics and why does it matter?: Paul B. Thompson, Michigan State University, USA;2.Approaches to ethics: Katie McShane, Colorado State University, USA;3.Institutionalizing agricultural ethics in US land-grant universities: Robert L. Zimdahl, Colorado State University, USA;4.Gender dimensions of agricultural ethics: Samantha Noll, Washington State University, USA;5.Agricultural ethics – the farmer’s perspective: Robert L. Zimdahl, Colorado State University, USA;6.Virtue ethics, Wendell Berry and agriculture: Wade Casey, Loyola University Chicago, USA;Part 2 Ethical issues7.Agriculture and the environment: ethical issues: Richard Bawden and Roger Packham, Western Sydney University, Australia;8.Migrant labour in agriculture: ethical issues and challenges: Francesca Giarè, Patrizia Borsotto and Gabriella Ricciardi, Council for Agricultural Research and Economics (CREA), Italy;9.Intensification in agriculture: ethical issues: Alesandros Glaros, Philip Quarshie, Emily Duncan and Evan Fraser, University of Guelph, Canada;10.Key ethical issues in livestock farming: Natalie Thomas, University of Guelph, Canada; and Adam B. D. Langridge, Nipissing University, Canada;11.Ethical issues of developing new technologies in agriculture: Bart Gremmen, Wageningen University, The Netherlands;12.Intellectual property rights in agriculture: ethical issues: Leland L. Glenna, The Pennsylvania State University, USA;13.Ethics of agricultural research: N. Yasemin Yalım, Ankara University, Turkey; Burçin Çokuysal, Ege University, Turkey; and Cemal Taluğ, Ankara University, Turkey;