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We set priorities in the hope of minimizing the total, long-term workload. Therefore, <br />we act to prevent new infestations and in the event that one is introduced; we assign <br />highest priority to infestations are the fastest growing, most disruptive, and affect the <br />most highly valued areas of the site. <br />B. Setting Priorities <br />In a general senses, weed species will be ranked for control priority based on the <br />following criteria: <br />1. Current extent of undesirable species in the area: <br />Species not in the immediate area, but with the potential to invade the area <br />2. Potential negative impact: <br />Species that out-compete native plant populations, excluding natives from the area. <br />Species that overtake and exclude natives following disturbances such as <br />mechanical disturbances, or that hinder restoration of natural communities <br />3. Difficulty of control: <br />Species likely to be controlled with available technology but will not be replaced <br />by desirable natives without an active restoration program requiring resources. <br />Species likely to be controlled or eliminated with available technology and <br />resources and which desirable native species will replace with little further input. <br />Species difficult to control with available technology and resources and/or whose <br />control will likely result in substantial damage to other, desirable species. <br />4. Value of habitats (rangeland Infestations that occur in the most highly valued habitats or areas of the site - <br />especially areas that contain rare or highly valued species or communities and <br />areas that provide vital resources. <br />Infestations that occur in less highly valued portions of the site may be given low <br />priority unless the species in question will make the situation significantly worse <br />C. Summary of Specific Actions Planned <br />All construction equipment that is brought onto the project site will be cleaned (utilizing <br />high-pressure water spray) prior to being transported to the site. <br />Two times per year inspections of site area to detect and treat any infestations that <br />might be introduced. <br />3. SPECIFIC CONTROL PLANS FOR HIGH PRIORITY WEED SPECIES <br />Weed: African rue, Peganum harma/a Priority: 1 <br />A. Current distribution: South-south east of pit site approximately 8 miles <br />B. Goal: Immediate eradication if introduced to road or pit site. <br />C. Management plans: <br />Eradicate through the use of appropriate herbicide. <br />D. Evaluation: <br />Assess effectiveness of management plan through semi-annual inventory. <br />5