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The North LaPoudre Pit Weed Management Plan <br /> Noxious weeds will be eradicated or managed within the North LaPoudre operations areas. <br /> Noxious weed species to be managed are defined as those plant species currently identified <br /> by the Colorado State Department of Agriculture (CDA) as noxious under the Colorado <br /> Noxious Weed Act. Management efforts will be directed to those species identified under <br /> List A or List B by the CDA. List A species are required to be eradicated, while List B <br /> species will be controlled. <br /> The noxious species are not listed here as the list of noxious species changes regularly. The <br /> Colorado State Department of Agriculture maintains a list of noxious weed species on their <br /> web site (https://www.colorado.gov/pacific/agconservation/noxious-weed-species). <br /> The presence of noxious weeds will be monitored annually during the summer growing <br /> season at the North LaPoudre site. Weed management measures will be undertaken where <br /> a single or combination of noxious weed species comprises or shows a deleterious effect <br /> to more than ten (10) percent of the live site vegetation. Further, where noxious weed <br /> species or plant pests constitute more than 25 percent relative vegetation cover in a <br /> contiguous area of 1000 square feet, the area will be identified as requiring weed <br /> management. <br /> Noxious weeds will be controlled by any combination of cultural, mechanical, biological <br /> or chemical measures. Weed control measures will be developed specifically for the <br /> noxious weed species encountered and in conjunction with the local county weed control <br /> district and/or the Colorado State Department of Agriculture. Weed control measures will <br /> be undertaken by trained and/or licensed (if required by law) personnel. Weed <br /> management control will initiate within two weeks of noxious weed identification at any <br /> operation, or as specified by the county weed control specialist. <br /> Where noxious weed control measures cause elimination of vegetation at a revegetated <br /> site, seeding or planting of desirable replacement vegetation will occur during the first <br /> normal planting or seeding season after weed control measures have been implemented. <br />