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V.L. Weed Management <br />'Weeds' broadly refers to unwanted vegetation. Various methods of control include 1) planting of <br />desirable vegetation, 2) alteration of growth environment, 3) mechanical removal, 4) biological <br />control, and 5) chemical control. The method or combination of methods used depends on the <br />weed species, growth stage, location, regulatory designation (i.e. is it classified as noxious and if <br />so, is it on List A, B, or C), extent of infestation, and availability of the equipment or chemical for <br />control. It is not our intent to identify what methods will be used in every situation within this <br />permit. Doing so would only serve to limit BME's ability to adapt to unique situations. <br />Rule 4.18(5)(g) requires Division approval for use of 'persistent' pesticides. Non - persistent <br />pesticides such as 2,4 -D and glyphosate (Roundup) do not fall into this category requiring specific <br />Division approval. Persistent pesticides approved by the Division for use at the Deserado Mine <br />include picloram Jordon), imazapyr (Arsenal), imazapyr + diuron (Sahara), bromacil ( Hyvar), <br />bromacil + diuron ( Krovar), tebuthiuron (Spike), imazapic (Plateau), imazapic + glyphosate <br />(Journey), metsulfuron (Escort), chlorsulfuron ( Telar), and sulfometuron methyl + chlorsulfuron <br />(Landmark XP). Trade names are for reference purposes only. <br />Tordon is used primarily for noxious weed control. Canada thistle is the primary target weed but <br />Tordon is also very effective on Russian knapweed, field bindweed, and black henbane. As a <br />'restricted' pesticide special licensing requirements apply to Tordon's use. <br />Arsenal is used primarily for the cut stump treatment of saltcedar and Russian olive and for bare - <br />ground weed control around facilities. Foliar application to saltcedar and Russian olive may also <br />be effective for spot control of young plants and resprouts. Arsenal is also particularly effective in <br />controlling field bindweed. The vegetation control characteristics of Arsenal persist for several <br />years. This product will not be used for bare - ground vegetation management in areas scheduled <br />for reclamation within three years. <br />Spike, Sahara, Hyvar, and Krovar are used for bare - ground weed control. The vegetation control <br />characteristics of these products can persist for several years. Their use will be the control of <br />vegetation along railroad tracks, areas immediately surrounding flammable storage tanks and <br />electrical substations, and where vegetation may cause safety, fire, or structural integrity <br />concerns. These products will not be used in areas scheduled for reclamation within three years. <br />Plateau and Journey are used primarily for cheatgrass control. These herbicides are also <br />effective in controlling leafy spurge, whitetop, Perennial pepperweed, and Russian knapweed. <br />Further research and experience with these herbicides will help dictate how they will be <br />integrated into the revegetation program. <br />Escort and Telar are effective in controlling many annual broadleaved weeds, biennial thistles, <br />whitetop, and perennial pepperweed. These herbicides are particularly effective on members of <br />the mustard family. <br />Minor Revision #157 (10/2013) V -67 <br />