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Public Works Control and Eradication Weed Species — List B <br />Weld County Road 49 Corridor The Colorado Department of Agriculture also placed a number cf species <br />Permits on Ihe'19 list'. Plants on the •B List lave the potential to be very <br />Invasive ncxIous weeds that quickly transform an area. These plants are <br />GravelRaads typically already established in Colorado. However, on a local level (i.e, <br />in Weld County) they may just be moving in. Therefore• the species on <br />Paved Roads the 'S Ilsl' will have at least ccntrr.Usuclomssion requirements and may <br />have eradication requirements. Some species may be listed as both <br />Bridges contrd/suppression and eradlcatio n based on the location of the <br />Roadside Treat Infestations <br />The Colorado Department of Agriculture has worked very closely with <br />Borraw0liches Counties to determine the control requirements of the species listed on <br />Culverts the 'B list fox the speeffic Counties in Colorado. Therefore, the control <br />requirements for'S list' species can be different tram County to County. <br />Cattle Guards Keep In mind; the noxious weeds mandated for control are planes that are <br />Transportation Planning rawmtive to North America. Consequently, these plants da not have the <br />natural checks found in their native land such as Insects cr diseases. <br />Traffic and Signing Due to the competitive aggressive nature of these plants they tend Io out <br />compete our native vegetation by forming mares -cultures. Many of these <br />Engineering species are also toxic to livestock and wildlife, or have limited grazing <br />Right -of -Way potential. <br />Surveying <br />Development Review <br />Snow 31ce Control <br />Municipal Serrate Storm Sawer <br />System jMSI ) MEMO <br />I WANT TO <br />Eradication Requirements <br />Z— Absinth Wonmvood <br />BackHenbene <br />Souncingbet <br />Chinese Clemads <br />Dames Rocket <br />Houndstongue <br />h'oeh Mullein <br />Plumelem Thistle <br />Spatted Knapwaed <br />Tamarisk <br />Control Requirements <br />Canada Thisde <br />Common tS Cutleaf Teasel <br />Euras+an Watermllfcll <br />Jointed Goalgrass <br />r <br />Musk Thisle <br />j� R;ssiarhKnapweed <br />Scotch Thistta <br />Venice Mallow <br />Yellow Nutsedge <br />Control &/OrEfadicadon I <br />I <br />Bull Thlade r <br />r <br />,e4 Dalmayan Toadflax <br />Uffuse Krapwaed <br />Hoary Cress <br />�n 1-901Spurge <br />Ferennialleepperw«ed <br />Russ;an Clive <br />Yellow Toadflax <br />10 Be Determined <br />Chamolmile • Cam, Maywood <br />b Scentless <br />�} Common Tansy <br />Oxeye Daisy <br />Dusckgrass <br />Sourad Anada <br />Sulfur Cinquefoil <br />_ice. Wild Caraway <br />Contact information <br />Tina BooWn <br />Weed Division Supervisor <br />email: thaotoneweldgow.pugt <br />