2015-05-14_REVISION - M1980244 (3)

Home Browse Search

1. Thorough cleaning of equipment before entering the mine or new areas to prevent the introduction of plant propagules from other sites. 2. Seed mixtures used for revegetation or temporary site stabilization will be free of noxious weeds. 3. Hay, straw, and/or other materials used for mulch or other purposes will be Colorado State certified as weed free. 4. Periodic surveys will be conducted to identify any new weed infestations. Any new infestations should be mapped and scheduled for management before they become well established. 5. Communication and coordination with adjacent land holders whose property is infested with weeds. Establishing partnerships for weed management within the local area is essential for successful long-term weed management. 6. Early detections and rapid response for new noxious weed infestations that threaten otherwise uninfected areas. 3.2 Noxious Weed Survey and Prioritizations A noxious weed survey should be conducted to identify the extent of noxious weed infestations and to document their locations. This inventory should be conducted on all mine property prior to or in conjunction with management activities in the spring of 2015. County and state listed noxious weed infestations should be identified in the survey, and data used to determine the appropriate strategy for containment, control, or eradication these noxious weed species. The survey will help to inform management priorities for infested areas. Treatment areas should be prioritized by infestation level, ease of access, and ability to spread. The use of GPS technology may be utilized to track the location and status of noxious weed infestations. Infestations discovered during treatment should be added to the existing survey data. Surveys can often be conducted during management activities, especially after the initial survey. Initial survey information should be used to prioritize management activities. Infestations that are small, sparse, and in isolated (otherwise uninfested) areas should be given the highest priority, as well as infestations in areas with a high potential to spread. By managing these types of infestations first, impacts of management efforts are maximized by preventing small problems from becoming large problems while expending a minim of effort. By evaluating the parameters of population size and density, infestations can be ranked for priority of treatment. A recommended matrix for prioritization is provided here. The size of noxious weed infestations will be rated from 1 to 3, and the density of the infestation (percent cover) will be rated from 1 to 3. Large infestations include infested Anglo Gold Mine Weed Management Plan