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Nage 7 of 23 <br /><'hcmical Control of Plmntltsa Thistle <br />Ap)x•ndix I <br />kveml hcrbradcs arc regrstcrcd in pasYUrc, r:urgcland and noncrop areas to control Plumcless thistly <br />Tordon 22K (picloram). Cunail (clopyralid +2,q•p{, l3anvdl4'anquish+`Clanty Idicamba). 2A-D. or <br />F3am~9/VanyuisluClariry plus ~ 4-U are commonly uscnl Apply these herbicides in spring or fall to <br />Plumcl~ss thisde rosettes <br />Apply Turdun at (1 c to 1 pmt per acre (A), Curtail at ? quans'A. [3amcl/4'anyuish/('laxity at tl 5 to <br />yuanvA. 3.4-D at I S to 2 yuanv'A, or l3.mvcl,+4'anquish.+Clanty plus _ a-U al 0 c plus I yuan.'A Csxrl <br />temperatures Ibclow t0 degrees P1, particularly in fall, may adversely a0'at 2 J-D vontnsl of Plumclcss <br />thisdc, therefore. use 2,d-ll in spring Turdun is larucly unaflirsaad by caxd Icmpcrnnncs <br />liansd+l`anyuishr('larity can he adversely atlbctcd but Icss than :,4-U liam c1+4'anquish/Clarity plus ?,4-U <br />works well in sprang rx fall Apply any of thew herbicides Ixforc f'lumcless thistle bolls or seed pnxluc;tiun <br />still will occur <br />Ally-F:aort (mctsulfuronl or 1'clar (chlnrsulfuron) also wit be uxd l'sr Tclnr m noncmp arws only and <br />Ally•lsuxt m pastures, rangeland or noncrop aruu Research from ('oltnado State Univrrsity and the <br />University of Nehraska shows that'1'elnr or Allv•fscort presarot+ex drarnaucally ratuces viable seed <br />fixmation when appliad in spring, up to cult' (lower growth stages The latest Omc to apply dtcse <br />hcrhiades is when dsh eloped terminal flowers hasu opened up to the size of a dune <br />Apply Telar at I exmr:r:'.A ur Ally-Gscun at 0 < arrnce~A Odd a good agricultural surfactant at 0.25 percent <br />vh'_ to r\Ily-Fsum cx 1'clur treatmr.Kns or control a madeyuatc <br />SCOICfI 1flIS1~t' <br />., <br />r `~' ' ~ . <br />r <br />j' ~ .r <br />.1 aT. <br />`ar , <br />., ` <br />.. ~•'... <br />Y, <br />\,~ <br />