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sharp bend as it heads downhill, was visually estimated to contain at least 7-8 continuous <br />acres of whitetop. <br />Future Weed Management Recommendations <br />While it is anticipated that Chevron Mining will meet Colorado DRMS weed <br />management requirements in 2010, noxious weed control should remain an integral part <br />of vegetation management within the Edna Mine boundaries going forward in order to <br />ensure that remaining infestations do not reach unmanageable levels. <br />Canada thistle and houndstongue are likely to continue to persist throughout the eastern <br />portion of the Moffat area. It is recommended that two application visits per year be <br />continued in order to continue to reduce the size of the remaining infestations. A late <br />spring or early summer visit is likely to reduce the amount of plants able to reach <br />maturity, while a mid to late summer visit should target plants that have sprouted or have <br />become easily visible prior to setting seed. <br />Continued treatment of whitetop should consist of one treatment visit per year in late <br />May or early June. Several small populations were not treated prior to setting seed this <br />year and may persist or expand in the 2011 growing season. The large patch in the West <br />Ridge area should be watched closely and managed accordingly if infestations return. <br />2010 Edna Mine Weed Management Report 4 8/30/2010