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Tucker Carr Pit Weed Management Plan <br />File No.: M-1980-002 <br />Site Location <br />The Tucker Carr Pit is located NE of I-25 at the Farr Exit in Weld County, Colorado. <br />The property is owned by the Terry Grazing Association. <br />Obiective <br />The objective of this weed management plan is to control undesirable plants on <br />the Pit property. Plants identified through the Colorado Noxious Weed Act <br />(C.R.S. 35-5.5) and the Weld County Noxious Weed List as undesirable and <br />designated for management within the county include Canada Thistle, Musk <br />Thistle, Diffuse Knapweed. Russian Knapweed, Spotted Knapweed, Dalmation <br />Toadflax, Yellow Toadflax, Leafy Spurge, and Tamarisk. Not all of these weeds <br />are found on this site. In addition to this Iist, Russian olive is included for <br />management and eradication in the Colorado Division of Minerals and Geology <br />program policy memorandum dated January 19, 2005. Attached is the State of <br />Colorado Department of Agriculture Noxious Weed Species lists. The list is <br />broken down into 3 Lists: <br />o List A: Species in Colorado that are designated by the <br />Commissioner for Eradication <br />o List B: Species are species that are targeted in order to stop the <br />continued spread of these species. <br />o List C Species: are species of weeds that are listed as a guideline <br />for local agencies to manage. <br />Methods of Control <br />The methods of control are cultural, mechanical, biological, and chemical. They <br />are listed in order of use preference. These methods are defined as follows: <br />• Cultural — The method or management practices that encourage the growth <br />of desirable plants over undesirable plants. <br />• Mechanical - The method or management practices that physically disrupt <br />plant growth including but not limited to tilling, mowing, burning, <br />flooding, mulching, hand -pulling, and hoeing. <br />• Biological — The use of organisms such as sheep, goats, cattle, insects, and <br />plant diseases to disrupt the growth of undesirable plants. <br />• Chemical — The use of herbicides or plant regulators to disrupt the growth <br />of undesirable plants. <br />An integration of one or more of these methods will be applied. In general, weeds <br />will be controlled by minimizing disturbed areas and re -vegetating affected areas <br />as soon as possible following disturbances. Each year, prior to the growing <br />