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2013 Weed Management Recommendations <br />In 2012, there were four areas not treated by Habitat Management on CC &V Mine that <br />have been treated in past years: <br />1. The upper Squaw Gulch is in the planning process for the expansion of mining <br />activities and will be disturbed in future years. <br />2. Arequa Gulch has not been treated since 2009. In 2009, moderate quantities of <br />Canada thistle were treated and it is likely that some sprouting from the seed bank <br />and perennial root buds has occurred in the interim. <br />3. Victor Trails was not treated in 2011 or 2012. <br />4. Victor Leach Field was last treated in 2011, but noxious weeds were not <br />abundant. Despite the substantial decline in Dalmatian toadflax and common <br />mullein infestations, areas around the main camp and the VLF should be <br />considered high priority for 2013. <br />These areas should continue to be monitored in the event that a dormant seed bank is <br />present. Environmental conditions, lack of competition from native species, or failure to <br />control remaining plants on an annual basis could potentially result in re- infestation. <br />Depending on the current mining activities and changes in 2013, these areas should be <br />inspected for noxious weeds and treated if present. <br />In 2012, there were a few areas added to the priority list by CC &V. These areas included <br />topsoil stockpiles near the crusher, Dump #4 and Schist. These areas are infested with <br />Canada thistle, musk thistle, yellow toadflax and Dalmatian toadflax. Canada thistle and <br />yellow toadflax were found to be dominant on these sites with the exception of a large <br />population of musk thistle on the topsoil stockpile near the crusher. These sites contain <br />large population of noxious weeds along with a substantial seed bank. In order to control <br />these extensive weed populations, spring and fall applications are highly recommended. <br />The spring application will prevent seed production, while fall treatment allows the <br />herbicide to translocate to the root system setting back the perennial species for the <br />5 <br />