The plant trade may serve as a pathway for invasive pests to enter the United States. The United States Department of Agriculture (USDA) uses multiple methods to reduce and detect pests in imported plant material. In 2013, USDA published a new rule that established a list of plant taxa under the regulatory category of “Not Authorized Pending Pest Risk Analysis” or “NAPPRA”. Plant taxa are restricted importation under NAPPRA when: 1) the plant is host to a potential invasive species that is not present in the US, or 2) the plant is a pest. NAPPRA plant taxa are restricted from entering the US until a pest risk analysis is completed for the plant taxa. This allows USDA to fully consider the risk of the plant taxa for all pests associated with the plant taxa at their foreign origin and craft specific mitigation measures before allowing importations. To date, 206 plant genera and 1 plant family are designated NAPPRA as host plants to quarantine pests, and 79 plant genera are NAPPRA because they are pest plants. This poster provides further details about the NAPPRA regulatory category and how you can submit suggestions to USDA for prospective NAPPRA candidates by using the email PPQ.NAPPRA@USDA.GOV. Your proposal of a plant taxa for NAPPRA because of pest risk could lead to regulatory changes that protect American agriculture!
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