A Chain Risk Model (CRM) was developed for a cost effective assessment of phytosanitary measures. The CRM model can be applied to phytosanitary assessments of all agricultural product chains. In CRM, stages are connected by product volume flows with which pest infections can be spread from one stage to another. The arrangement of these stages can be varied. Experience with CRM was acquired through two cases: Clavibacter in Tomatoes and PSTVd (Potato Spindle Tuber Viroid) in potatoes. Employees from the Dutch Plant Protection Service (PD) will initially test CRM.
Report 2009-113 Chain Risk Model for quantifying cost effectiveness of phytosanitary measures