Laserfiche WebLink
Chavers Mining Resource <br /> Integrated Noxious Weed Management Plan <br /> January 2024 <br /> Page 3 <br /> 2.0 OVERVIEW OF TARGETED WEED SPECIES <br /> Noxious weeds in Colorado are categorized based on the extent of infestation within the state. <br /> ■ Colorado Noxious Weeds-List A: List A species are not well established in Colorado, <br /> are potentially a large problem to this state, and require mandatory eradication by local <br /> governing agencies. Prescribed techniques for management of List A species are hand <br /> pulling, digging, or herbicide application. Mowing, grazing, and insect bio-control are not <br /> acceptable forms of management for these species. <br /> ■ Colorado Noxious Weeds-List B: List B species are common enough in parts of the <br /> state that eradication is not feasible,though the species are still recommended for <br /> eradication, suppression, or containment depending on distribution and densities around <br /> the state. Prevention of seed dispersal may be accomplished by mowing,hand pulling, <br /> tillage, grazing,or herbicide application. <br /> ■ Colorado Noxious Weeds-List C: List C species are widespread and well established. <br /> Control of List B and C species is recommended,but not required by the state. However, <br /> local governing bodies may require management. <br /> No List A weeds have been identified at the Site. Section 2.1 identifies the primary List B and C <br /> weed species of concern and provides general descriptions and information about the weeds. <br /> 2.1 SITE-SPECIFIC TARGETED WEED SPECIES <br /> The following table lists the most prevalent noxious weeds species of concern identified at the <br /> Site. These are the primary targets for management,management strategy(i.e.,priority and goal), <br /> and extent of infestation (Figure 1). Copies of the Targeted Weed Fact Sheets are provided in <br /> Appendix A. <br /> Noxious Weed Species Identified State/County Management nation Goal Infestation <br /> (Scientific Name) List Priority Desig Density <br /> Scotch Thistle Containment& <br /> B 1st Medium <br /> (Onopordum acanthium) Suppression <br /> Hoary Cress Containment& <br /> B 1st Medium <br /> (Cardaria draba) Suppression <br /> Cheatgrass <br /> C 2nd Suppression Light <br /> (Bromus tectorum) <br /> Field Bindweed <br /> (Convolvulus arvensis) C 2nd Suppression Light <br />