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I'agc 1 1 of 2? Aplx•nJi~ I <br />( hemird ('mnrol of Ruvviao Knapwccd <br />In most nrcumstances. an hetfiicule alone wrli not elTecncely manage Kusstan knapweed I towever. there <br />may be cinrntionc where desirable plants within n Kussinn knapwt•rA infintation may rnmp~tic etl~~rtivelq <br />with the weed if it is stressed with a stnglc wrxd management technique \\'hen mtegnunl: chemical rind <br />wluual cunuol, avoid using herbicide udrs Ihal inp+rc urasses because ell-r.'Gvc uanlxrtilion will be <br />reduced <br />Russian knapweed +s tuntrollcd wnh Tordon ?'K (pitloram) at I to 2 quarts'4 fordcm may be broadcast <br />sprayed up to l yuart;:\ ur spin sptaved at ratc> up to ? yuau :\ Ibrdun giro 2,-i-D (I to I S pmts ^ 1 <br />yuart~:\1 also writ conud Kussiart knapwetti If low ratrs of l ordon ur 1 urdon plus ?,4-I) dre wed, <br />appbratiun tix two wnsccuuvc you. may be accessary to achieve adcywitc contrc,) :lppiy 'fordrm am' <br />time the weed is aetivclV growing <br />Fix Tclar Ichiorvdliuun), a nnncu,q, herbicide that amuula Ruvsian knapwmi, application timing i> <br />critical Apply (I lxmccl.4) when Kuxsian knapwc~d Ix in the blcwm to pustt,la,m stnµc I~.arlier <br />appli,:ati<ms du nut contu,l the weed ctl'aaivciv Fall is a gad time to apply 7clar. hul it now inliue stm,nth <br />brome ur Mher hn~rnc species Ahvays add a gaxi agricultural surtactarn at +) 25 ru U c percent v+v to rhr <br />spr.ry >olutiun Escort pnetsulfurnnl is labe{ed tix pasutw and rangeland uu :lpplc it at l) 75 p. 1 .ama•.':\ <br />wnh a gcxxl agricultural surfactant Optimum nnung for Lscnrt is s,mdar to I clar <br />Mechanical ('antral of Kussian Knapwcal <br />K u>>lall knapNtwYl ICnli. to il,nn moron ulwlc> dad u>u,dly dunmatr~ ~•tha•r plnnt> Fhcirfurc, ,uwuig <br />de.irnblr giant spcnes n ncxtsw} atier the wetti ix eonuollcd timucnh brume well a,mpne with Kus>ran <br />knnpw.r<I Kcscnrch shows that arcambank whcargntss. thickspikc whcaterass, crestrd whrrtgrass and <br />Kussian wddryc rtscthhshttl otter Russian t:napwcyd w;~s supprcsxd w,th hcrbh•rdrs Scd-ti,mnng <br />lxlcnnia) gm~+c.. like >trcam6ank ,H IIIICk?plkl' WhG1I1jnU>l'>, IICIp pIC\Cnl ICllw a>IUn bCli[I Illeli bUnCh <br />gresscs Itke cresud whcatgrass <br />If the Ruscinn knapwttd stand is nut tun old and grasses arc cull present. stimulnhng grass growth M <br />Irrigation (where possible) shtwld mcrrase grays competition with knapweed and keep the weed under <br />y-0nllnual y1reYJ <br />Slwtted kuatp~sced <br />