2010-02-26_REVISION - M1977223 (9)

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2.0 Weed Control Objectives: Objectives are derived from your management goals. They are formed by inventorying the weeds you have on the mine site, determining how they affect your management goals (For example, does the weed reduce forage? Poison livestock? Or crowd out native species?), and determining the most efficient ways to control those weeds. Sometimes a weed control objective will be to simply contain an infestation so that it does not become a problem, or to keep certain weeds off of the mine site. * Added to "Management Goal(s)" September 16, 2009 Knowing which weed species occur on your mine site and where they are located is very important in developing control priorities. Weed species vary considerably in threat that they pose to the resource values of the property. In addition, weed species vary greatly in their susceptibility to control measures. Thus, weed species that pose the greatest threat to achieving the management goals for the mine site and which can be most easily controlled are the highest priority for management. To create weed control objectives for your weed management plan, first search your mine site for weeds (if you have not already done so), then fill out the attached WEED MANAGEMENT TABLE 2.1. 2.1 Weed Management Table (see table 2.1): 1) Search the mine site and fill in columns 1-3 in the table paying particular attention to which weed species are present on the mine site, how large the infestations are, and where on the property they are located. 2) Read the weed species profiles for the species you identified and fill out columns 4-7 in the table. You can purchase the hard copy of the guide from the Colorado State Parks at 1313 Sherman, RM 618, Denver, CO 80203, site document Creating an Integrated Weed Management Plan: A Handbook for Owners and Managers of Lands with Natural Values. (Hereafter called the Handbook) Move on to Section 2.2 to determine the management priority of each weed species. 2.2 Prioritizing Weed Species: Determine the management priority of each weed species on the mine site by using the Alien Plants Ranking System outlined in Appendix 6 of the Handbook, or by consulting your County Weed Supervisor. Species that have the highest priority for management should receive a "priority check" in the table, and should be controlled first. Use the information in the table about the weeds "life cycle" (emergence and flowering) to coordinate times and methods of control. (For example, several species on your list may be controlled best when cut or pulled after bolting but before seed production. If these species have similar life cycle characteristics