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from the State Weed List (partial) <br />oxeye daisy (Chrysanthemum leucanthemum) <br />X Canada thistle (Cirsium arvense) <br />X_ bull thistle (Cirsium vulgare) <br />Scotch thistle (Onopordum acanthium) <br />_X_ musk thistle (Carduus nutans) <br />cheatgrass (Bromus tectorum) <br />Mountain tarweed (Madia glomerata) <br />X_common mullein (Verbascun thaspens) <br />Management Recommendations <br />Gravel pits are unique sites with special weed management considerations. These sites <br />are continually disturbed and material is regularly hauled off-site. This necessitates <br />different weed management goals than on other types of property. It is essential that <br />weeds, including weed seeds, are not spread from this quarry to other areas, and <br />that, along with restoration of riparian vegetation health is the goal of weed control at this <br />site. This requires an aggressive weed control program. <br />There are four main stages to weed control at this quarry: detection, prevention, <br />treatment, and monitoring. <br />Detection of noxious weed species begins with a survey of the site prior to disturbance. <br />Further detection of new weed species is essential, and the property owner, in <br />collaboration with the Routt County Weed Program shall regularly monitor the property. <br />Of particular concern are those weeds on the County and the State noxious weed lists. <br />Prevention is a key component of this plan. Those areas that are being reclaimed shall be <br />re -seeded as soon as possible (and in accordance with any other permits) with a weed - <br />free mix composed primarily of grasses. (Appendix A provides potentially appropriate <br />seed mixes, and the local County Extension Agent can help develop any mixes in the <br />future.) if any hay is used in the reclamation process State Certified Weed Free flay <br />shall be used. Seeding is best accomplished in the fall or with a hydro-mulcher. Any <br />topsoil sold as a part of the permit shall be weed free to prevent weeds from spreading <br />throughout Routt County. <br />2 <br />