PEST RISK ANALYSIS (PRA) TRAINING Group Exercises Manual

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GROUP EXERCISE NO. 3.1 PEST RISK ANALYSIS TRAINING - GROUP EXERCISES MANUAL 3. Review of previous PRAs A check should be made as to whether pathways, pests or policies have already been subjected to the PRA process, either nationally or internationally. If so, is there a previous PRA which will address the current situation, or do any of these previous PRAs contain information which is pertinent to the current situation and which can contribute to the current PRA? Previous PRA? Yes [__] No [__] Comment: If a previous PRA is still relevant and current, the PRA may stop here (as the previous PRA may suffice). If not, or if previous PRAs are not current or not pertinent, then the PRA may continue. 4. Conclusion of initiation At the end of Stage 1, the PRA has been initiated and the reasons for the PRA have been stated, i.e., a pathway(s) has been described, an organism has been identified and determined to be a pest, or the reasons for a policy revision have been identified. In addition, the PRA area has been defined. The PRA continues to Stage 2: Pest Risk Assessment. 20
PEST RISK ANALYSIS TRAINING - GROUP EXERCISES MANUAL GROUP EXERCISE NO. 3.1 Part 2 - Pest Risk Assessment - Categorisation (20 minutes) At the outset, it may not be clear which pest(s) identified in Stage 1 qualify as potential quarantine pests. The categorisation process examines whether the criteria in the definition for a quarantine pest are satisfied for each pest originally identified before the PRA continues. 1. Identity of the pest • What is the organism? • Is it clearly a single taxonomic entity and can it be adequately distinguished from other entities of the same rank? • If the causal agent of particular symptoms has not yet been fully identified, has it been shown to produce consistent symptoms and to be transmissible? Pest identity Pest type If the answer is no, the PRA process may stop. Further research may be necessary to go on with the PRA. If the PRA continues, information pertaining to other similar pests may be required and assumptions or areas of uncertainty clearly stated. 2. Presence or absence in the PRA area • Does the pest occur in the PRA area? • If so, is the pest widely distributed in the PRA area? Present in PRA area? Widely distributed in PRA area? Important assumptions Yes [__] No [__] Comment: Yes [__] No [__] Comment: If the pest is present and widely distributed in the PRA area, the PRA may stop (remember the definition of a quarantine pest). If the pest is present in the PRA area, but not widely distributed there, it should be under official control or expected to be under official control in the near future (see Question 3). If the pest is absent from the PRA area, continue with Question 4. 21
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PEST RISK ANALYSIS (PRA) TRAINING Group Exercises Manual

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