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4 - 73 <br />• 4.5.14 NOXIOUS WEED CONTROL PLAN <br />As identified earlier in this Section, one listed noxious weed in the permit was identified <br />during the base line vegetation survey, white top Cardaria Draba.. At this writing, 1996, both <br />field bindweed, Convo/vuius arvens/s, and Canadian Thistle , Cirsium arvense, have been known <br />to occur in the disturbed area . Control of the infestations with general use herbicides have <br />been undertaken by the operator to ensure that these weeds do not become a problem. <br />Though the operator has been controlling these weeds on the disturbed areas of the mine <br />property, relatively large infestations of the subject weeds occur on the adjacent highway right <br />of way and surrounding large areas of undisturbed Bureau of Land Management lands. Seeds of <br />these noxious weeds from the adjacent uncontrolled areas are undoubtedly reinfesting the <br />areas where the operator has been controlling the weeds. At the request of the Division, the <br />operator's control efforts are being formalized with the following noxious weed control plan. <br />1. Informal inventories of the weed infestations will be undertaken by the operator annually. <br />Once during the spring prior to blooming of whitetop and once in the fall while plants <br />• are still actively growing. <br />2. Control of the weeds will be with General Use Herbicides applied by the operator. If <br />restricted use herbicides are to be used ,application will be made by a properly licensed <br />or certified person. All herbicides will be applied as directed on the manufacturer s label <br />and in conformance with the CSU Extension Service recommendations. <br />3. Specific herbicides to be used include; <br />2.4 - D Amine - Numerous trade names • A selective broad leaf herbicide for control of <br />annual and perennial broadleaf weeds in areas with desirable grasses. A general use <br />herbicide. <br />Gly hop sate -Roundup - A nonselective post emergent herbicide to control most <br />annual and perennial broadleaf weeds and grasses. A general use herbicide. <br />Controlled areas will be monitored for effectiveness of the treatments. Additional <br />treatments will be performed as necessary . If necessary, controlled areas will be seeded with <br />desirable species to discourage subsequent regrowth of noxious weeds. <br />• <br />Mo Volume 1 4-29-96 <br />