Vol. 16â1962 - NorthEastern Weed Science Society

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2. Assistant Professor. Department of Agronomy, University of Massachusettt, Amherst. Massachusetts. 282 CHEMICALQUACICGWSCONTROL 1 , Jona. Ve~gri82 Atrazine (2-chloro-4-ethylamine-6-i80prop,lamino-s-triazine) and other herbic,ide.areavailable wh~~Il,,,ppear to provida reliable mean8 of controlling quackgral8 (Agropyron repen8). Atradne:'.uppresses this weed significantly ~utoften recollllend_" t.j;e. fail.to e.radicate it completely., The persi8tence of this weed i8 related to its primary mode of reproduction. i.e. itl rhizomes which usually ate distributed in the l'low layer. Rhizomes vary in length and depth and thist·a. our tests indicate (2). i8 at leatt part of the explanation for failure. in controlling quackgrass with chemicals. Atrazine sholi14 be applied c.•• clole as pouible to the rhizomes .It is re.sonable to conclude that mi.i~g the herbicide with the soil should be advantageous. The ch4llllical will be closer to the rhizomes and under dry surface .oil conditions mixing ma, provide better moisture conditions for atrazine to be tAken up by rhizomes and kill them. The main objective of ou~ trials in 1960/1961 was to investigate the importance of mixing atrazine ",ith the soil by rototUling versus leavtag the material on the surface. Comparisons were al.e .. de between fall and spring applications. In addition'to'atrazine. other promising herbicides or their combination. were included. Procedure Trials were conducted on a well drained gravelly sandy loam. The area had a good unif.,. stand of quackgrass. Plots wlere 12 ft. by 28 ft. Three replicates were used. Time :0'£'application and ~ates are given in Table II. Fall applications were made on October 10. 1960 and spring applications on April 27, 1961. The quaclgrass was from 5 to 7 inches tall. On May 19 the exper1lilental area w". "lowed. disked, fertilized and prepared for field corn planting. On May 22 after seedbed preparation, atrazine and EPTCwere applied as shown in Table-iII. Treatments 10, 11, 12 and 20 were rototillad about 4-~ in. deep immedtately following application of the material. The next day on May 23, Ohio M-1S silage field corn was planted. Thus treatments appUed on May 22 aMybe considered lUI being made at planting. Atrazine is only slightly soluble ·in'water (70 ppm i1l':water) and moisture conditions in the soil at the time of application and for the first ten days after application are critical fo~tbe effectiveness of treatment. In Table I. rainfall and temperature data are shown for the various treatment dates. With each date.of application, the moisture conditions were favorable for the action of atrazine. On June 5 the whole experimental area was sprayed with 6 pounds per acre· of dinitro' (DNB') for annull'lW4eedcontrol. There wa• ._-----------_.._----------------_.- .. _._----._---_.--_._------------ 1. ContributiCn No. 1336 of the University of Massachusetts, College of Agriculture, Experiment Station, Amherst, Massachusetts. ..--- .
no cultivation during the growing season. All herbicide rates presented 1ft Table II are expressed in pounds of acid equivalent or active ingredient per acre. Quackgra88and field com teeponse to dUfereb«: tl'eatments was observed throughout the srowing season. Q'*'1tgra88 .ta~d es~tes werelll4de on July 29. Quackgrass control as well as sil_.e' ,com yield data
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PRESENTANDFUTtJU OF AQUATIC'. WIlD
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Complete reports from 12 Nor~heaste
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The reawakening in aquatic weed con
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,10.1ng -2,4.,;iD (19), 2,4~5.T (4)
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9 The Role of the State in Res idue
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,., 1'4 keep developmental work in
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In addition to a review of field an
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State workers have to consider resi
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The vigorous regrowth of quackgrass
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during t,he sUllllller.is l,ower ll
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5. llslapon and other chlorine,ted
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23 • ·i INTRODUCTION: !!'he Bear
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Some damage to runners rssul ted fr
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27 CELLSTRUCTUREANDPLANTGROWTHCRMON
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pel'fQ.,..d,-.ear17M1932. that the
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a copious precipitate deposits afte
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B) A general review of the subject
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This narrative of ineptitude must b
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does Jo run a recreational facility
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Another pote1U:ialuse for chemicals
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Newapproaches in the use of herbici
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43 sentence would bear this out". T
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More and more each year since the a
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11. Rice, E. J. The effects of cUlt
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PFSI'ICIDESUSED - - - - - - - - - -
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__..:I whether or not these apparen
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Dosage. Ib./acre Dimethyl tetrachlo
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~ ~_~ __ L L Table 2. Weed Susceoti
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- - - - - - - - ~, - - - - --- - -
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Table 7.. Weed Control in :l:!c,Ql1
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Table '1. Rat.1lISstI 'Of carrot an
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H , 'ta~l!. g,._~e~_O!~ut~• .:.:.
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65 plant press and dried in a f~ced
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67 Tablet. 'lIi! EFFECT'or AN'INO'l
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69 THE INFLUENCE JIt P.I!ll'ROLEUM
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71 1 CDEC(Ee) 2 " " 3 4 " 5 " " 6 7
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!a~l~ 1._ ~!:.c!: :!!1~hJl!:e.::m~d
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75 EFFECT;OFCOMPOSITIONANDVOLUMEOF
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A LOGARITHMICSPRAlERFORSMALLPLCflSY
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79 Do~ Calculations The actual init
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Selective Herbicides for Several Cr
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83 Susceptible weeds Tolerant weeds
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85 Marion Market 9 9 9 9 9 9 9 9 Da
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Table 5. Bai
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weeding of Lima Bean. With Chemical
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EFFECTOF HERBICIDESONQUALITYANDYIEL
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Results Date treated: 9/6/61 Soil m
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95 Date planted: 915/61 Date treate
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Table 3. Yield Data on Hanover and
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Weeding of Carrots With 'pre-lilanU
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101 WEEDCONTROLSTUDIESIN SEElED ONI
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Weather conditions at the two locat
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In contrast to the damage noted in
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107 Literature Cited 1. Althaus. R.
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Table 1. Weed control: stand of pla
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Results and Discussion. The data, p
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CIPO, Vegadex, and Randox Singly or
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Table 1•. Wa. control, stand of p
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'Ihree experiments were conducted i
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a- Table 2_"COIIlpartsonof' Several
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fJ Table 3. CcBparison of Several.
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c
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Table 1. Seeding and Weed Counts on
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WEEDCONTROLANDTHE IMPROVEMENT OF SE
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Following emergence of the tomato s
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indicates that several of the treat
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DISCUSSIONOF RESULTS Transplant Tom
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harvest was covered with weeds, and
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An additional 2 years of tests on f
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~ Table 2 .--l Average Number and P
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~ Table 4 Total Yields in Number an
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"" ~ Table 6 Bvalu~t1.on of S&l~nto
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of weed eoneee I without inj ury 't
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1. Associate Research Specialist in
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Stulllll&ry A study was lh1tlatedto
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Table 2. The residual effects of se
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FURTHEROBSERVATIONS ONCONTROL OF TH
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Table 3 - Mean per cent brake contr
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lAssociate Research Spec1alist in W
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PRE-E~mRGENCE WEEDCONTROLTEST IN RE
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161 Table 2. Tolerance of Beets and
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163 Results generally were good wee
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USE OF GRANULAR CHl!H[CALAPPLICATOR
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u.s. #1 potatoes and weed control e
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0' ~ Table 2. Pre-emergent weed con
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Table 3. Post-hilling weed control
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~/Pe.nt>:r lITn. h.7(L T1o:oTl.,:r+
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In table 2 are presettted weed a*1'
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Since rec1root is only one of the I
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w.l.th 3 and 4 Ibs. ot Randox per a
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181 CONTROLOF ANNUALWEEDSIN pOTATOE
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The following comments on the vario
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185 S\:U!U!1fryand ConclWtlon No he
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187 Table 2. Potato YIelds Followin
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Residue analysis of potatoes treate
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soil temperatures at the time the m
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( ( ~able 2. Effect of Several Che~
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195 PROBLEMSIN THEAPPLICATIONOF HER
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197 scale tests on 2 cOlJllllercial
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l!!!! Experiment A factorial experi
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frOlll plot. at .horter i*nalt (~ t
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6.50 Table 1. Effe,ct of p"e- an
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205 EVALUATION0It' DACTHAL * HERBIC
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The 1959 and 1960 replicated field
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209 TABLEII Average Weed Cont~l Exh
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Where the weed eompleJl;conststs of
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...... 1.67, 213 Table 1. Effect of
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215 Table 2. Bffect of pre-plant he
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.217 Pive pre-plant herbicide. were
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219 Table 1. Effect of pre-p1anthel
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Table 2. tilat' of pre-plantbftb.tc
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l EVALUATIONOF THREEHERBICIDESONPnE
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TABLE2. TIll HIGHESTlATEOFHERBICIDE
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Because of the lush growth of quack
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Table 2. Effects of Herbicides on Q
Page 231 and 232: Table 3. Effects of Herbicides on A
Page 233 and 234: 233 The inhibitory activity was ass
Page 235 and 236: non-polar solvents. Table 5 shows t
Page 237 and 238: 237 Figure I Bioassay of cbrOlll4to
Page 239 and 240: 239 Weed Control and Residual Effec
Page 241 and 242: Rototilling was done in June·' SO
Page 243 and 244: 243 in the spring of 1961 preceedin
Page 245 and 246: WEEDCONTROL.AR
Page 247 and 248: Li£erature Cited 1. Chappell. W. E
Page 249 and 250: Tl'eatments ghing un.811~!8facto%'y
Page 251 and 252: Table 1. Designa t ion Am1l:)en .\
Page 253 and 254: Table 3. Percent Broadleat Weed Con
Page 255 and 256: ,255 CONTROLOF ANNUALWlmDSIN swDT C
Page 257 and 258: of Casoron per acre was statistical
Page 259 and 260: ~.-! _ 1.37 ~ Table 2. Sweet Corn Y
Page 261 and 262: Table 4. Peroent Control ot Ann.ual
Page 263 and 264: EVALUATIONOF FIVE _~p>I!:S FOR KILL
Page 265 and 266: 265 STRAWBERRY HERBICIDEINVESTIGATI
Page 267 and 268: 267 Table 2. Eftect Of'herbicidet~e
Page 269 and 270: 'h ", 4. Tillam lOG at 5 lb/A a.i.
Page 271 and 272: Asparagus The results of weed contr
Page 273 and 274: 273 TABLEII. ~1EED CONTROLANDYIELD
Page 275 and 276: ~ C'l TABLE tv. lIEE» OON1T..OLAND
Page 277 and 278: WEEDCONTROLIN TRANSPLANT TOMATOES (
Page 279 and 280: 279 ·QUACKGRASSCONTROL S.M. Raleig
Page 281: 281 table II. The control of:'4oaek
Page 285 and 286: SummaryandConclu.1Qp' 1. A quackgra
Page 287 and 288: If or where farmer acceptance of a
Page 289 and 290: ,~, ~ Tab1.e II. Chemical. Treatmen
Page 291 and 292: so11 per plot at each sampling date
Page 293 and 294: 418' 293 Table III Main Eff,ects of
Page 295 and 296: Table V, }nt ...... e..• ,fa~, I;
Page 297 and 298: plots showed smaller decreases with
Page 299 and 300: FURTHEREVALUmONor HERBICIDESFal· W
Page 301 and 302: 301 In the SUIIIIIlf)1' seeding, th
Page 303 and 304: The results were similar to those o
Page 305 and 306: In another experiment, loam soil wa
Page 307 and 308: apparently due to severe competitio
Page 309 and 310: ab1e 2. Average dry weight of corn
Page 311 and 312: 311 The most strllt~Mrr~ct. ~fiIIJI
Page 313 and 314: 313 RE9lfm'$~lfI)DI3CtlSSION '1.",
Page 315 and 316: 315 LrrERATURECITED 1. Fertig, Stan
Page 317 and 318: .~ pattern following applications o
Page 319 and 320: Ratings at the time of'gJ;Vllst; al
Page 321 and 322: THERESPONSEOF NUTGRASS TO HERBIC~I)
Page 323 and 324: '\.......- TABLE2. Ratings of Nutgr
Page 325 and 326: All treatments produced si~1f~c~tly
Page 327 and 328: A 327 WEBDe
Page 329 and 330: . Eli'FECTSali' WEEDSON YIELD AND"G
Page 331 and 332: Pollen Maturity: ",l. ,. Broadleaf
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'--' The applicators were tested un
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335 Figure 1. The effeetof partic1e
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337 SRFeader 1 On this spreader onl
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Table 4. The effect of speed, p~~cl
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Table 1: Herbicidal treatments used
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·000 .000, I II ! WEEDCONTROLRATIN
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2.5000 CORNINJURY EXPRESSEDAS SQUAR
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347 1. 2. Danielson. l , ;4. L. Ef~
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',-- 34~ 3-(3 ..4-Dichlorophenyl)-1
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weed control with adequate safety t
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Untreated Table 2. Directed Post-E"
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.s .... __ Table 7. Pre-Emel'ae~eWe
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experiment is reported herE!. Trifl
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Results are given. in Table 4~J'Rot
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In Princeton fine sand, tritlupalin
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Included in the lima. bean test wer
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Table 1. The Effects ofS8veral form
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Table 3. The effects of several for
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369 Table 5. The effects of sev~ral
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• ~ : .• \ • ' -' ..,,:- ',-"
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Heights of barley were significantl
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Table 2. The effe,cts of s~\I'~ral
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Table 4. 377 The effects of aevel8.
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,:' A PROGRESSREPORTONCOMIo!ERCIAL
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4. Undesirable dead stem.,lio not r
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areas under service conditionsa~ va
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We ,prpbablyhave no speeie of g~owt
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control. At the end of the third ye
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initial defoliation was evident lat
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OBJECTIVE In 1958 an experiment was
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Replicates DlO 810 I 2.0 0.5 II 1.5
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DISCUSSION One Year After Applicati
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1. Button, E.F. Bndwrfg'h~';J .L. ,
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399 The treatment consisted of appl
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401 FIELD PROCEDURES Although. the
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403 In the light of these data it a
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405 ...·1!MLE I SAMPLECHARACTERIST
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407 , '.". '.·',',~'l~rL,i;'. "\"
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dltterent l"atespacaoreand"~"at thr
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411 RESULTS ireatmentettect was det
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, 413 ;. ' "1 ' "':j " • made wit
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( ( . Table 3. Effectiveness on Spe
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417 FENURQlt,A PROMISINGNEWTOOL FOR
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There are a number of reaso~ for un
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.n_ots, "'hhin a few months after:
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sater method ot tree-killing close
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Material ~izone is a,mixedf~g.. t w
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427 On November 16, 1961, at the en
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CHBMI-THINNINGWITH,AIrlINES IN THED
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These tests show once aaaiJithe nee
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Th:Ls ch!~ca1. tx'eatme:n1!_1IhClJ.
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: if.. . ' A Comparative Study of t
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'j 437 petioles, now elongated,f'or
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Helisoma, Menetus, fhYSa andValvata
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i s. The benth1c populat1Q~ W¥", O
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443 Eurasian. wa~lfoil a W8t.f~~ ap
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Empb4sis was on testing DOD-volatil
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447 . , , -. I':'V'est~a.ti
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FIELDOBSERVATIONS UPONESTUARINE ANI
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more than 2 feet. ExceptionalUdes s
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TABLE1. Responseof oysters t~ diffe
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In the'Dundee Creek series. ,one of
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workers. springer (1961) cite8& num
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OBSERVATIONSONTHE OCCURRENCE' ANDPE
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461 TABLE! Chemical Water QuaU1?::r
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TABLEIII Threshold Taste and Odor C
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(1.1-) Burttschell, R.H. , et al.,
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Code A - seeded June 29 B - seeded
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SUIIIIJ~, ~ Conclusions 5' 469 The
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III. Average turf scores l' of thre
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474 PIft'J'OTOXICBlFBQTS'QJe'CBRTAI
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476 MERIONBLUEGBASS• T!BATANDsgD
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478 In general. the treatments appl
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4BJ days follow:lng the ohemical tr
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') ') ' :_B!.ue~s•. Fescue au:l~"
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:". ',J P~E~ C!',. O~.C~G~S 'F.~HEM
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Lima and ferd'1izer applications sh
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4es 1'.o~~1ty, ", .ewf!r''''rsenc.
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} ) Table 1. Besu):ta.Qf 1961 pre-e
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492 corresponding plots on este.bl1
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494 ae.u!s,'I!IIDi,cua.:Lon leUllll
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496 D±!3pa,~n~ Resul te)I? .,l-ta,
Page 498 and 499:
498 1 . 1 J. E. Gallagher and n. J.
Page 500 and 501:
500 Da1;ejJ01 e~uations ~,a.;t'ollC
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502 TADLEIt Comparison of "severalc
Page 504 and 505:
504 TADLE3: Pre-oemergence and poet
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506 Table 1. Re8eeding Resulte:afit
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5"8 d1propalin ortrifluralin 'at ':
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510 aUlIPIl iri '-1: ' D" "" Diphen
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Fall ve. spriif ~nts .. 'Ibe",obl1.
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514 ~ Tab1e2. Cr&bgraS$'Contr01 in
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516 ,';1:".i'"'f'!r": :~,j i: .. r
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. ~lS residual cemtrol of crabgrssi
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520 - . \.. ; ."," ,
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5~2 'rab4t13.· ~gtnc. ·QGabtiol:o
Page 524 and 525:
524 PRE.._RGENCE AMU' POsT-EHERGENC
Page 526 and 527:
526 Table 1. 'l'a):lsra,. ContrO.k1
Page 528 and 529:
528 Pre- andpost ..emergejljCec:rab
Page 530 and 531:
530 Prior to each chemical applicat
Page 532 and 533:
u 532 3) Those trea.t,mellts which
Page 534 and 535:
Table I (Coot'd) 27. JSc.F,~iOe t$~
Page 536 and 537:
536 EXPERIMENTS ONTHECHOOCALCOIm'l)
Page 538 and 539:
~______ , 53S Table 1: Control of c
Page 540 and 541:
54' In a similar po st-ell1~rgence
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542 da~hal and diphenatrile) at ear
Page 545 and 546:
.. ";' -:' il; JT!.: .'\ i~'J" ; ~J
Page 547 and 548:
541 Distr:tbution of radioacti~tl t
Page 549 and 550:
549 •RESULTS The distribution of
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GRAPHII: Comparison of the~.tl;'i~u
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"-...-.. J.4 The distribution of r~
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Vol. 16â1962 - NorthEastern Weed Science Society

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Vol. 16â1962 - NorthEastern Weed Science Society