The impact Indicator for Priority Pests (I2P2) : a tool for ranking pests according to Regulation (EU) 2016/2031

This technical report describes the composite indicator developed by the JRC to rank plant pests, based on their potential economic, social and environmental impact in the EU. This indicator can then be used to inform policymakers implementing the Plant Health Regulation with regards to identification of priority pests. It presents the theoretical framework for the construction of the composite impact indicator for prioritisation of pests (I2P2), and defines and discusses the individual indicators which compose the I2P2, together with the data sources used to calculate them using T. indica as an example. Lastly, the I2P2 is applied to a set of 28 Union quarantine pests to show its performance. Using the data for these 28 pests, consistency and robustness checks are applied to test the internal validity of the indicator.