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LARIMER DEPARTMENT OF NATURAL RESOURCES <br /> COUNTY •Parks&Visitor Services •Open Lands Program •Weed Management&Forestry <br /> AMMM 1800 South County Road 31 <br /> Loveland, CO 80537 <br /> ME911000MINIMME (970)6794570/(970)679-4574 FAX <br /> www.larimer.org/natural resources <br /> Justin Hersh December 21, 2015 <br /> R&B Functional Group Manager <br /> Larimer County Road& Bridge <br /> Re: Strang Gravel Pit Noxious Weed Management Plan <br /> Justin, <br /> The Colorado Noxious Weed Act states that noxious weed management is the responsibility of local <br /> governing agencies: incorporated municipalities, counties and lands owned by state and federal agencies. The <br /> act states that the board of county commissioners of each county in the state shall adopt a noxious weed <br /> management plan for the unincorporated lands within the county. The Larimer County Noxious Weed <br /> Management Plan was approved by the Board of County Commissioners on March 6, 2008. Larimer County, <br /> in cooperation with the Colorado Department of Agriculture, Colorado State University Cooperative <br /> Extension, and other agencies, actively promotes compliance of the Noxious Weed Act. <br /> The Larimer County Noxious Weed Management Plan requires eradication of all Lists A species and <br /> infestations of certain List B species identified as regionally scarce by the state, and containment and <br /> suppression measures for List B species identified as significantly troublesome in Larimer County. County <br /> Outreach programs will emphasize identification and management of 16 List B species but reserves the right to <br /> enforce on any state-listed noxious weed if the infestation size and density deems it necessary. Below is a list <br /> of the noxious weeds that are present on Strang Gravel pit property and are listed as either a List B, or List C. <br /> The plants listed below are List B weed species and are species for the which the commissioners, in <br /> consultation with the state noxious weed advisory committee, local governments, and other interested parties, <br /> develops and implements state noxious weed management plans designed to stop the continued spread of: <br /> • Bull thistle (Cirsium vulgare) <br /> • Canada thistle (Cirsium arvense) <br /> • Musk thistle (Carduus nutans) <br /> • Scotch thistle (Onopordum acanthium) <br /> • Hoary cress (Cardaria draba) <br /> • Leafy spurge (Euphorbia esula) <br /> • Tamarisk also known as Salt cedar(Tamarix rarnosissima) <br /> • Russian olive (Elaeagnus angustifolia) <br /> There are also numerous List C plants present at the Gravel Pit, along with weeds that are troublesome in <br /> Larimer County,but not on currently on the County Weed List. List C species management goals will not be <br /> to stop the continued spread of listed species but to provide additional education, research, and biological <br /> resources to jurisdiction that choose to require management of List C species. (List C species in bold) <br /> • Common mullein (Verbascum thapsus) <br /> • Downy brome (bromus tectorum) <br /> • Field bindweed (Convolvulus arvensis) <br /> • Perennial Sowthistle (Sonchus arvensis) <br /> • Flixweed(Descurainia Sophia) <br /> • Kochia(Kochia scoparia) <br /> • Mustards (Brassica family) <br />