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CC&V: 2016 Weed Management Report <br />INTRODUCTION <br />Habitat Management, Inc. (Habitat Management) performed noxious weed management at Cripple <br />Creek & Victor Gold Mine in July and September of 2016. Herbicides were spot applied to noxious <br />weed species on reclaimed and disturbed lands inside and outside the mine permit boundary. <br />Applications took place near the Cresson Mine Project within the state of Colorado. Weed species <br />treated in 2016 are listed in Table 1. <br />Table 1: Noxious Weed Species Treated During 2016 <br />Common Name (Latin Name) <br />Common Name (Latin Name) <br />Bull Thistle (Cirsium vulgare) <br />Field Bindweed (Convolvulus arvensis) <br />Canada thistle (Cirsium arvense) <br />Musk thistle (Carduus nutans) <br />Common mullein (Verbascum thapsus) <br />Scotch thistle (Onopordum acanthium) <br />Dalmatian toadflax (Linaria dalmatica) <br />Yellow toadflax (Linaria vulgaris) <br />SUMMARY OF WEED MANAGEMENT ACTIVITIES <br />Habitat Management conducted noxious weed treatments under State of Colorado Commercial <br />Qualified Supervisor Licenses #28479, held by Anthony Matthews and License #29724, held by <br />Matt Clark. Additionally, noxious weeds were treated by technicians trained in weed species <br />identification and safe herbicide application procedures. All applicators were MSHA Part 46 & 48 <br />trained prior to beginning work on the property, and were trained on current site specific safety <br />training conducted at the Carlton entrance. Under the Endangered Species Act, applicators are <br />required to check monthly for herbicide application restrictions within the counties they operate. <br />There were no herbicide restrictions in place during the months of July or September 2016 for <br />Teller County, Colorado. <br />Herbicides were spot applied using a UTV-mounted spray rig and Stihl SG20 backpack sprayers. <br />Only broadleaf selective herbicides were applied to reclaimed and native areas. Broadleaf selective <br />herbicides have a very low potential for injury to surrounding desirable grass species. No <br />herbicides were applied directly to water or to drainage ways which contained water at the time of <br />application. <br />Herbicide active ingredients (AIs) were combined for 2016 applications. Varying and combining <br />herbicide AIs allows for different "modes of action" that lowers the risk of developing chemical <br />resistance in plants. Combining AIs also improves the effectiveness of the herbicide activity within <br />the plant. A surfactant was used during all applications to increase leaf adhesion and absorption. <br />Hi -Light Blue Indicator Dye is added as a visual aid for tracking field applications and serves to <br />prevent under or over application to targeted areas. This dye is inert, temporary and typically <br />disappears over time. The amount of time this takes is contingent upon the soil types and <br />environmental conditions following application. Herbicide application rates were also varied <br />depending on the target species, growth stages of the targeted plant, surrounding biomass, and <br />environmental conditions. <br />Noxious weed locations were identified by Gary Horton and treatment priorities were given to <br />each area before herbicide applications were performed. Additionally, information about <br />previously treated areas by Habitat Management was used to provide locations of historic <br />infestations. The locations of noxious weeds treated in 2016 were recorded using GPS Dataloggers, <br />Habitat Management, Inc. 1 December 27, 2016 <br />