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PRE — Plant Risk Evaluator

2023-2025 Western IPM Project

This is a continuation of the successful 2021 & 2022 projects titled "Building Continuity Across State Invasive Plant Lists: Evaluating Invasive Risk of Horticultural Plants" and "Expanding Continuity and Capacity in Invasive Plant Risk Assessments across Western States"  2021-2023 projects are funded by the Western Integrated Pest Management Center. Project partners for this year include the California Invasive Plant Council, PlantRight, The University of Arizona, Western Invasive Species Network, Pacific Northwest Invasive Species Council, the Yurok Tribe, and Nevada Department of Agriculture.

This project intends to support the expanded use of the online PRE tool to more Western States and nations, and to explore the use of the PRE results for each partner region. Along with the direct benefit from the plant assessments, this project will also provide a platform through which to collaborate on a range of efforts related to preventing introduction of invasive plants through horticulture. Each partner can share their expertise on effort such as providing information on safe landscaping alternatives, surveying nurseries for data on what is being sold, comparing species priorities.

Project Evaluations

PRE Score Date State Evaluation Questions Answered Screener Confidence
11 2024-12-13 Arizona Brachychiton populneus -- Arizona 20 66.00 %
18 2025-02-14 Oregon Celastrus orbiculatus -- Oregon 20 84.00 %
7 2024-09-29 California Cutandia memphitica -- California 20 71.00 %
17 2025-02-27 Nevada Cytisus scoparius -- Nevada 20 78.00 %
19 2024-09-23 California Eragrostis echinochloidea -- California 20 78.00 %
9 2025-02-03 California Euphorbia bourgeana -- California 20 62.00 %
12 2025-03-05 Oregon Euphorbia dentata -- Oregon 20 67.00 %
12 2024-12-27 California Limonium sinuatum -- California 20 78.00 %
15 2024-12-27 Arizona Nerium oleander L. -- Arizona 20 79.00 %
21 2024-12-28 California Senecio angulatus -- California 20 83.00 %
Displaying 1 - 10 of 10 Evaluations

Affiliated Organizations

California Invasive Plant Council (Cal-IPC)
Nevada Department of Agriculture
Pacific Northwest Invasive Plant Council
PlantRight
The University of Arizona
The Yurok Tribe

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