Vol. 16â1962 - NorthEastern Weed Science Society

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176 There was less difference betwen chemicals on m1neral soils as compared to those obtained on muck. Almost all e,bem1cals gave adequate weed control. However, Falone at 4 lbs. and Zytro~ &1; 10 1bs., were :l.nf'erior. CDEC+CDAA 'WaS only borderline in effectiveness. This is in contras't)"to its excellent per .. formance on muck. ',); The crop waS.not seriously redu~e~ by 8lJY chemica.). except Hercules 7175. Experiments to Evaluate New Chemicals In 1961 two tests were conducted With potatoes a:Bll attemtt to evaluate crop and weed response to new chemical.. One of these was located in stolJY silt loam and. the otl;ler on muck. li:achpl.ot was 3 x 15'1'eet and 1iIBS repJ.icated twice. All treatments were made shOrtly after planting. Chemicals known to require incorporation 'were hand r$ked. Potatoe~ responded favorably to almost all chemicals. Two exceptions 'Ilere Hercules 7175 and Rand.oxT both of which injured the crop. The weed population was limited pr1mariJ.y to redroot on the mineral soil. Many compounds were active against this pest. The muck test was heavily infested with perennial or swamp smart weed, P01ygonum coccineum. No chemical provided any control. A sl.l!llll18rYof redroot response to the various chemicals is presented in table 3. Table 3. A summary of redroot response to chemicals applied pre-emergence in - - - - - P.Oiai'~~cePtib1e - - - . - - - - - - - - - fi,ferant - - - - - - - - - Chemical - - - - - - Lbs. nafapon - - - - - - - ~ - - 5+fo- Chemical - - - - Lbs. - - - - -AJich'em5"1:"8f - - - - - -2+4- - - - - DN 3+ 5 Diphenamid 4 Amchem61-122 4+8 Bayer, 35850 2 Amiben 3+4 Hercules 7531 2 Dacthal 8-1-12 Monsanto 17029 2+4 Zytron 8-1-12 EPI'C gran. 3 Diphenamid 8 Til1am 3 Trifluralin 4+ 8 Stauffer 1607 3+6 Dipropal1n 4+ 8 II 1870 3+6 Bayer 30056 2+ 4 " Bayer 35850 4 II 2007 1856 3+6 3+6 Du Pont 326 1+ 2 tI 3400 5+10 Geigy 27901 2+ 4 " 3415 5+10 II 30031 2+ 4 II 34161 2+ 4 II 34361 2+ 4 Hercules 7175* 2+ 4 " 7531 4 EPl'C 6 Til1em 6 stauffer 3408 5+10 Randox T* 4+ -------------------- 6 --------- ---_.----- *'roxic to potatoesj all others relatively safe for pre-emergence applications. J
Since rec1root is only one of the IIIaJlYweed species Pr"ent in potato f1e1ds~ the results are not particularly" de:f1n1t1ve. If, however~ redroot is the principal pest, certain chemicals can either be el1m1ntted or tried at much higher rates. The principal value of the data is to point out that for pre-emergence use, the research worker has a Wide lattitude in choosing chemicals whic probaly will not be toxic to potatoes. Judging from the weed results obtained with theee compounds in other teets, the authore Suggelilt that particular attention be paid to the following new compounds: DipheJ:l8m1d,TrifluraliD~ Du Pont 326 and Hercules 7531. Summary~ COnclusions 177 Two ex;per1ments wel'$ conducted • the effectivElQ4!Ss and safety of preand post-emergence applications of several herbicides, on potatoes.. One 'test was on muck~ the other on graveely" 108lIl.. Two tests were .conducted to evaluate new chemicals as to their· potential tor selective weeding of potatoes. One of these was conducted on muck and one on m1neral soil. 1. Muck soils· gre$tly reduced the herbic1.dal effectiveness ot Herct,Uee 8043, Dacthal, Zytron, and HolD and Haas 11'-34. On the otb$r band CDEC+CDAA activity was much improved on muck as compared to that obtained on mineral so11. . 2. In contrast to previous work by the authors Hercules 7175 was toxic to potatoes. 3. Both chemicals and crop shading markedly influence weed populations at harvest. 4. NO chemical was tound to be toxic to swampor perennial smartlll!led, Polygonum cocc1neum. 5. A large number ot distinctly different chemicals are safe for preemergence and post -emergence use on potatoes. 6. Of the newer chemicals, Diphenam1d~ Triflural1n, Du Pont 326, and Hercules 7531 are especially outstanding for pre-emersence use. It is not known how potatoes wUl react to Du Pont 326 and Trifluralin it they are used post -emergence.
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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
Page 125 and 126: Table 1. Seeding and Weed Counts on
Page 127 and 128: WEEDCONTROLANDTHE IMPROVEMENT OF SE
Page 129 and 130: Following emergence of the tomato s
Page 131 and 132: indicates that several of the treat
Page 133 and 134: DISCUSSIONOF RESULTS Transplant Tom
Page 135 and 136: harvest was covered with weeds, and
Page 137 and 138: An additional 2 years of tests on f
Page 139 and 140: ~ Table 2 .--l Average Number and P
Page 141 and 142: ~ Table 4 Total Yields in Number an
Page 143 and 144: "" ~ Table 6 Bvalu~t1.on of S&l~nto
Page 145 and 146: of weed eoneee I without inj ury 't
Page 147 and 148: 1. Associate Research Specialist in
Page 149 and 150: Stulllll&ry A study was lh1tlatedto
Page 151 and 152: Table 2. The residual effects of se
Page 153 and 154: FURTHEROBSERVATIONS ONCONTROL OF TH
Page 155 and 156: Table 3 - Mean per cent brake contr
Page 157 and 158: lAssociate Research Spec1alist in W
Page 159 and 160: PRE-E~mRGENCE WEEDCONTROLTEST IN RE
Page 161 and 162: 161 Table 2. Tolerance of Beets and
Page 163 and 164: 163 Results generally were good wee
Page 165 and 166: USE OF GRANULAR CHl!H[CALAPPLICATOR
Page 167 and 168: u.s. #1 potatoes and weed control e
Page 169 and 170: 0' ~ Table 2. Pre-emergent weed con
Page 171 and 172: Table 3. Post-hilling weed control
Page 173 and 174: ~/Pe.nt>:r lITn. h.7(L T1o:oTl.,:r+
Page 175: In table 2 are presettted weed a*1'
Page 179 and 180: w.l.th 3 and 4 Ibs. ot Randox per a
Page 181 and 182: 181 CONTROLOF ANNUALWEEDSIN pOTATOE
Page 183 and 184: The following comments on the vario
Page 185 and 186: 185 S\:U!U!1fryand ConclWtlon No he
Page 187 and 188: 187 Table 2. Potato YIelds Followin
Page 189 and 190: Residue analysis of potatoes treate
Page 191 and 192: soil temperatures at the time the m
Page 193 and 194: ( ( ~able 2. Effect of Several Che~
Page 195 and 196: 195 PROBLEMSIN THEAPPLICATIONOF HER
Page 197 and 198: 197 scale tests on 2 cOlJllllercial
Page 199 and 200: l!!!! Experiment A factorial experi
Page 201 and 202: frOlll plot. at .horter i*nalt (~ t
Page 203 and 204: 6.50 Table 1. Effe,ct of p"e- an
Page 205 and 206: 205 EVALUATION0It' DACTHAL * HERBIC
Page 207 and 208: The 1959 and 1960 replicated field
Page 209 and 210: 209 TABLEII Average Weed Cont~l Exh
Page 211 and 212: Where the weed eompleJl;conststs of
Page 213 and 214: ...... 1.67, 213 Table 1. Effect of
Page 215 and 216: 215 Table 2. Bffect of pre-plant he
Page 217 and 218: .217 Pive pre-plant herbicide. were
Page 219 and 220: 219 Table 1. Effect of pre-p1anthel
Page 221 and 222: Table 2. tilat' of pre-plantbftb.tc
Page 223 and 224: l EVALUATIONOF THREEHERBICIDESONPnE
Page 225 and 226: 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
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Table 3. Effects of Herbicides on A
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233 The inhibitory activity was ass
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non-polar solvents. Table 5 shows t
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237 Figure I Bioassay of cbrOlll4to
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239 Weed Control and Residual Effec
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Rototilling was done in June·' SO
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243 in the spring of 1961 preceedin
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WEEDCONTROL.AR
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Li£erature Cited 1. Chappell. W. E
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Tl'eatments ghing un.811~!8facto%'y
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Table 1. Designa t ion Am1l:)en .\
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Table 3. Percent Broadleat Weed Con
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,255 CONTROLOF ANNUALWlmDSIN swDT C
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of Casoron per acre was statistical
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~.-! _ 1.37 ~ Table 2. Sweet Corn Y
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Table 4. Peroent Control ot Ann.ual
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EVALUATIONOF FIVE _~p>I!:S FOR KILL
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265 STRAWBERRY HERBICIDEINVESTIGATI
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267 Table 2. Eftect Of'herbicidet~e
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'h ", 4. Tillam lOG at 5 lb/A a.i.
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Asparagus The results of weed contr
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273 TABLEII. ~1EED CONTROLANDYIELD
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~ C'l TABLE tv. lIEE» OON1T..OLAND
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WEEDCONTROLIN TRANSPLANT TOMATOES (
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279 ·QUACKGRASSCONTROL S.M. Raleig
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281 table II. The control of:'4oaek
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no cultivation during the growing s
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SummaryandConclu.1Qp' 1. A quackgra
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If or where farmer acceptance of a
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,~, ~ Tab1.e II. Chemical. Treatmen
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so11 per plot at each sampling date
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418' 293 Table III Main Eff,ects of
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Table V, }nt ...... e..• ,fa~, I;
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plots showed smaller decreases with
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FURTHEREVALUmONor HERBICIDESFal· W
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301 In the SUIIIIIlf)1' seeding, th
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The results were similar to those o
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In another experiment, loam soil wa
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apparently due to severe competitio
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ab1e 2. Average dry weight of corn
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311 The most strllt~Mrr~ct. ~fiIIJI
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313 RE9lfm'$~lfI)DI3CtlSSION '1.",
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315 LrrERATURECITED 1. Fertig, Stan
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.~ pattern following applications o
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Ratings at the time of'gJ;Vllst; al
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THERESPONSEOF NUTGRASS TO HERBIC~I)
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'\.......- TABLE2. Ratings of Nutgr
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All treatments produced si~1f~c~tly
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A 327 WEBDe
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. Eli'FECTSali' WEEDSON YIELD AND"G
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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
Page 341 and 342:
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
Page 359 and 360:
Results are given. in Table 4~J'Rot
Page 361 and 362:
In Princeton fine sand, tritlupalin
Page 363 and 364:
Included in the lima. bean test wer
Page 365 and 366:
Table 1. The Effects ofS8veral form
Page 367 and 368:
Table 3. The effects of several for
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369 Table 5. The effects of sev~ral
Page 371 and 372:
• ~ : .• \ • ' -' ..,,:- ',-"
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Heights of barley were significantl
Page 375 and 376:
Table 2. The effe,cts of s~\I'~ral
Page 377 and 378:
Table 4. 377 The effects of aevel8.
Page 379 and 380:
,:' A PROGRESSREPORTONCOMIo!ERCIAL
Page 381 and 382:
4. Undesirable dead stem.,lio not r
Page 383 and 384:
areas under service conditionsa~ va
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We ,prpbablyhave no speeie of g~owt
Page 387 and 388:
control. At the end of the third ye
Page 389 and 390:
initial defoliation was evident lat
Page 391 and 392:
OBJECTIVE In 1958 an experiment was
Page 393 and 394:
Replicates DlO 810 I 2.0 0.5 II 1.5
Page 395 and 396:
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
Page 401 and 402:
401 FIELD PROCEDURES Although. the
Page 403 and 404:
403 In the light of these data it a
Page 405 and 406:
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
Page 413 and 414:
, 413 ;. ' "1 ' "':j " • made wit
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( ( . Table 3. Effectiveness on Spe
Page 417 and 418:
417 FENURQlt,A PROMISINGNEWTOOL FOR
Page 419 and 420:
There are a number of reaso~ for un
Page 421 and 422:
.n_ots, "'hhin a few months after:
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sater method ot tree-killing close
Page 425 and 426:
Material ~izone is a,mixedf~g.. t w
Page 427 and 428:
427 On November 16, 1961, at the en
Page 429 and 430:
CHBMI-THINNINGWITH,AIrlINES IN THED
Page 431 and 432:
These tests show once aaaiJithe nee
Page 433 and 434:
Th:Ls ch!~ca1. tx'eatme:n1!_1IhClJ.
Page 435 and 436:
: if.. . ' A Comparative Study of t
Page 437 and 438:
'j 437 petioles, now elongated,f'or
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Helisoma, Menetus, fhYSa andValvata
Page 441 and 442:
i s. The benth1c populat1Q~ W¥", O
Page 443 and 444:
443 Eurasian. wa~lfoil a W8t.f~~ ap
Page 445 and 446:
Empb4sis was on testing DOD-volatil
Page 447 and 448:
447 . , , -. I':'V'est~a.ti
Page 449 and 450:
FIELDOBSERVATIONS UPONESTUARINE ANI
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more than 2 feet. ExceptionalUdes s
Page 453 and 454:
TABLE1. Responseof oysters t~ diffe
Page 455 and 456:
In the'Dundee Creek series. ,one of
Page 457 and 458:
workers. springer (1961) cite8& num
Page 459 and 460:
OBSERVATIONSONTHE OCCURRENCE' ANDPE
Page 461 and 462:
461 TABLE! Chemical Water QuaU1?::r
Page 463 and 464:
TABLEIII Threshold Taste and Odor C
Page 465 and 466:
(1.1-) Burttschell, R.H. , et al.,
Page 467 and 468:
Code A - seeded June 29 B - seeded
Page 469 and 470:
SUIIIIJ~, ~ Conclusions 5' 469 The
Page 472 and 473:
III. Average turf scores l' of thre
Page 474 and 475:
474 PIft'J'OTOXICBlFBQTS'QJe'CBRTAI
Page 476 and 477:
476 MERIONBLUEGBASS• T!BATANDsgD
Page 478 and 479:
478 In general. the treatments appl
Page 480 and 481:
4BJ days follow:lng the ohemical tr
Page 482 and 483:
') ') ' :_B!.ue~s•. Fescue au:l~"
Page 484 and 485:
:". ',J P~E~ C!',. O~.C~G~S 'F.~HEM
Page 486 and 487:
Lima and ferd'1izer applications sh
Page 488 and 489:
4es 1'.o~~1ty, ", .ewf!r''''rsenc.
Page 490 and 491:
} ) Table 1. Besu):ta.Qf 1961 pre-e
Page 492 and 493:
492 corresponding plots on este.bl1
Page 494 and 495:
494 ae.u!s,'I!IIDi,cua.:Lon leUllll
Page 496 and 497:
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
Page 502 and 503:
502 TADLEIt Comparison of "severalc
Page 504 and 505:
504 TADLE3: Pre-oemergence and poet
Page 506 and 507:
506 Table 1. Re8eeding Resulte:afit
Page 508 and 509:
5"8 d1propalin ortrifluralin 'at ':
Page 510 and 511:
510 aUlIPIl iri '-1: ' D" "" Diphen
Page 512 and 513:
Fall ve. spriif ~nts .. 'Ibe",obl1.
Page 514 and 515:
514 ~ Tab1e2. Cr&bgraS$'Contr01 in
Page 516 and 517:
516 ,';1:".i'"'f'!r": :~,j i: .. r
Page 518 and 519:
. ~lS residual cemtrol of crabgrssi
Page 520 and 521:
520 - . \.. ; ."," ,
Page 522 and 523:
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
Page 542:
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
Page 551 and 552:
GRAPHII: Comparison of the~.tl;'i~u
Page 553:
"-...-.. 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