2006-07-31_REVISION - M1978327 (2)

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Kauffman Pit Weed Management Plan June 2006 Site Location The Kauffrnan Pit is 58 acres in size and is located north of the Big Thompson River, east of County Road 9E and southeast of Loveland, Colorado. Obiective The objective of this weed management plan is to control undesirable plants on the Kauffman Pit property. Plants identified through the Colorado Noxious Weed Act (C.R.S. 35-5.5) and the Latimer County Noxious Weed List as undesirable and designated for management within the county include Canada Thistle, Musk Thistle, Diffuse Knapweed, Russian Knapweed, Spotted Knapweed, Dahnation Toadflax, Yellow Toadflax, Leafy Spurge, and Tamarisk. Not all of these weeds aze found on this site. In addition to this list, Russian olive is included for management and eradication in the Colorado Division of Minerals and Geology program policy memorandum dated January 19, 2005. Methods of Control The methods of control are cultural, mechanical, biological, and chemical. They are listed in order of use preference. These methods are defcned as follows: • Cultural -The method or management practices that encourage the growth of desirable plants over undesirable plants. • Mechanical -The method or management practices that physically disrupt plant growth including but not limited to tilling, mowing, burning, flooding, mulching, hand-pulling, and hoeing. • Biological -The use of organisms such as sheep, goats, cattle, insects, and plant diseases to disrupt the growth of undesirable plants. • Chemical -The use of herbicides or plant regulators to disrupt the growth of undesirable plants. An integration of one or more of these methods will be applied. In general, weeds will be controlled by minimizing disturbed azeas and revegetating affected areas as soon as possible following disturbances. Each year, prior to the growing season, the site will be inspected to assess noxious weed growth and establish control procedures for the season. Weed management will likely include both mechanical and chemical controls. Biological controls aze not anticipated at this time. Mowing will be used throughout the growing season in order to keep noxious weeds from going to seed. Chemical spraying will occur to manage weeds in reclaimed areas, disturbed areas, open pits, and stockpile materials.