Design of a decision support tool for visualising E. coli risk on agricultural land using a stakeholder-driven approach

•We develop a decision support tool (DST) to identify sources of on-farm E. coli risk.•The DST was co-designed & developed with stakeholders using a participatory approach.•Opportunities & limitations of stakeholder-driven DST design are identified.•The DST is a freely available advice system for visualising E. coli risk on pasture.