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ANNUAL REPORT <br />Operator: United Companies of Mesa County, Inc. FiECEd VED <br />Operation: Virginia Acres JAN 15 2003 <br />File Number: M-1990-021 <br />Diuisian of Minerals and Geelegy <br />Anniversary Date: January 24, 2003 <br />The Virginia Acres gravel pit site has been inactive for the past year. Knapweed became a problem at the <br />site prior to 1998. Chemical herbicide (Various brands) has been used in 1998, 1999 and 2001to control the <br />knapweed problem at this site. <br />Herbicide control appeazs to be successful over much of the site. Patches of knapweed continue to exist at <br />the site. Many of the knapweed plants that remain occur as isolated plants that aze separated from other <br />knapweed plants by 15 to 20 feet of other species. In a few cases, the plants continue to grow as a single <br />species stand (20 feet diameter). The largest of these stands is neaz the south boundary of the site where the <br />adjoining property (owned by Mesa County) has a lazge knapweed infestation problem. United Companies <br />will treat the ICnapweed plants at this site again this yeaz, beginning with a spray application of Curtail this <br />Spring prior to the plant's flowering. This will be followed by a late summer spray application of Curtail. If <br />this application of herbicide is timed correctly the knapweed will pull the herbicide down into its roots and <br />the plant will be killed. <br />A map of the knapweed azeas is attached. <br />