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was used to develop a weed management plan designed to contain, control, and eradicate to the <br />extent practicable noxious and tazgeted weed infestations identified during the survey. <br />The survey was conducted when noxious and targeted weeds known to grow in the area were in <br />flower or could be identified from vegetative characteristics. Conducting the survey during these <br />periods aided in identifying and observing infested areas within the project area. The survey <br />concentrated on seven species of noxious weeds and five targeted weeds observed growing <br />within Eagle, Summit, and Lake Counties and on the project azea including Canada thistle <br />(Cirsium arvense); Diffuse Knapweed (Centaurea diffusa); Hoary Cress (Cardaria draba); <br />Leafy Spurge (Euphorbia esula); Russian Knapweed (Centuarea repens); Spotted Knapweed <br />(Centurea maculosa); Yellow Toadflax (Linaria vulgaris); Field bindweed (Convolvulus <br />arvensis); Houndstongue (Cynoglossum oj~cinale); Mayweed chamomile (Anthemis cotula); <br />Musk thistle (Carduss nutans); and Wild cazaway (Carum carvi). Of these species, Wild <br />cazaway was not observed on the project azea. <br />Each location identified as being infested by noxious and tazgeted weeds during the survey was <br />evaluated and scored for three weed population chazacteristics to determine a treatment priority <br />ranking: population extent and density, potential to spread, and ability to control. <br />• Population Extent & Density <br />The azeal extent and density of the infestation were rated from 1 to 3. Plant populations <br />were rated as follows: 1 to several plants = 1; several to many plants within a small to <br />medium sized area = 2; and an extensive number of plants over a lazge azea = 3. Plant <br />density populations were rated as described on Table 1. <br />Habitat Management, Inc. 2 12/20/05 <br />