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Dowe Flats Quarry Noxious Weed Management Plan <br />4 Integrated Weed Management <br />An integrated weed management approach will be implemented for treatment of noxious weeds <br />which enables selection of one or more weed management methods based on site specific <br />environmental conditions and control needs. The following weed management methods will be <br />considered for the Dowe Flats Quarry property and re described in more detail in this section. <br />• Prevention — Site vigilance, careful planning, and equipment cleaning to prevent <br />introduction and spread of noxious species. <br />• Chemical Control — Application of appropriate herbicides by a licensed applicator and <br />in accordance with the manufacturer's label and State laws. <br />• Mechanical Control — Hand pulling, mowing, disking and cutting. <br />• Biological Control — Introduction of grazing animals or insects that are known to inhibit <br />or prevent reproduction of noxious weed species. <br />• Cultural Control — Promptly planting and promoting native or desirable plant species <br />for site colonization in disturbed areas and planning disturbance to minimize infestation <br />opportunities. <br />In some cases, only one control method may be warranted, while in other cases a combination of <br />control methods may be appropriate. Control methods selected will be dependent upon species of <br />concern, and the location and extent of the infestation. <br />The use of IWM methods will protect pollinators, reduce hazards to wildlife, reduce the <br />possibility of herbicide resistance, and minimize persistence and mobility of herbicides in the <br />soil. Weed control methods and practices will be applied at the appropriate time to maximize <br />their effectiveness. When herbicides are used they will be applied in a manner that conforms to <br />applicable federal, state, and local laws. <br />4.1 Prevention <br />Noxious weeds are spread through dispersal of seed and/or transport of plant propagules (i.e. <br />rhizomes, bulbs, roots, etc.). The most effective way to control noxious weeds is to prevent their <br />introduction into the site in the first place. A combination of methods and practices are employed <br />to prevent the introduction of weed species and their regeneration within the project area. <br />The following methods and practices may be employed, either singly or in combination, to <br />prevent the introduction of weeds: <br />1) All equipment and tools, including those belonging to contractors, will be thoroughly <br />cleaned prior to entering the project area to prevent the introduction of seed and plant <br />propagules from other sites; <br />2) Seed mixtures used for revegetation or temporary site stabilization will be free of <br />noxious weeds; <br />3) Hay, straw, and/or other materials used for mulch or other purposes will be certified <br />weed free; <br />4) A periodic inspection will be conducted to identify any new weed infestations that <br />may have occurred. Any new infestations will be scheduled for management before <br />they become well established and/or spread; <br />5) Communication and coordination with adjacent land holders whose property is <br />infested with noxious weeds that may threaten the site should occur. Establishing <br />Habitat Management, Inc. 4 September 2015 <br />