Show i V MENAGES AGES ES l' l ALFALFA FIELDS int in Basin J iI I of Much o J HeWs Concern n. n J i. i 4 Lomer new weed known ner a Knapweed was dis- dis I Ion R ss I county which is J pe e Of running out alfalfa f fO hill 0 is t d done one to toL L Attention on of are aie called to the tho serious weed treed may have on the Ri thiS is here in in an m article toa In to Inc c of the L Utah tah Farmer no j j. j t F Suffer Huffer department nt or of orand and plant p pathology Utah laral Experiment Station I 1 L fiche follow folio s A i 1 weed Russian 3 I a. a rea Pall within the tha rears Hens has made its way into f td ed j already is the cause causo or in m thc the alfalfa areas of ah tah basin S Specimens sent identification by John W. W of the Uintah basin alfalfa farm at Ft Du- Du and C. C H. H Wilkinson m of the p I epard leppard rd Seed Company Roose Roose- f t are ure been positively identified ian laD Knapweed field conditions Russian Ed sed Is capable of running laIra but its effect upon other sops fops is not known ia n a Knapweed has spread in Kansas Idaho Nevada ern lern W Wyoming oming as well as In ine e county If this Ilo In our state it willi will f i rge ge e sums of money moncy to control r eradication may become lm- lm Every effort should be therefore to eradicate it n now w wit it spreads any farther In Inan p an u n Knapweed is a member or ot mon Imon flower garden Bachelor i Genus It is a aDf of Df the Caspian Sea region legion or of Russia where it i a pes pes' pesI I Ifa Ua a fields It is believed that this plant was v brought into entry lOtry In ship meats of 0 Y alfa ura According tc R. R A. A f and aud H. H L L. Westover Westover- of the States Department of Agri- Agri commercial Turkestan alj ald aled al- al j sed ed d can be identified in most bj Ui the seed of Russian Knap- Knap which thich it almost invariably hl For this reason fa rs re Je planted Turkestan alfalfa airala heir fields to S 3 See JG C if H these weeds are present i Plants of the Russian Knap Knap- a height of from one to tot t with th much branched stems items I 1 I end l of each branch is borne home tr r head The leaves are aie linear clasping at the base hase I or occasionally with to toothed an and l from one-half one to two long Usually three show on on an the thc underside leaf leat lf The heads resemble o of tho the garden Bachelor Button Dutton that hi they have no ra ray flow flow- The blossom varies in color f tender Mender to purple When the theIre Ire mature they are about an ano o f aU an inch long ovate In blunt I Jt t t both ends ends ends' with fi Ine ne longitudinal grooves groo The TheN 0 N Of the seed varies from rom light t Alight light brown lau Ian Knapweed is a perennial It has the persistent root- root p of t th the 1 Is morning glory and the r Seeding Ceding habit of the dander dande- dande I i habitat is ia similar to that Method Method- of eradication sot ot been studied in Utah out rno Is h no doubt that clean L to as Is used for morning glory this weed It b be eradicated before it gets ce to 3 spread and cause more W Doable |