Vol. 15â1961 - NorthEastern Weed Science Society

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TABLEI. field Corn tiead Control and SUaa8 Corn Yields Relative Values Check· 100 lleed Stude 7/21/60 Corn Treatments and Time of Application Dtcot Mcneeot Yields 9/15/60 1. Check 100 100 100 2. EPTAM2 Ib/A, pre-planting & mized in 47 9 150 3. BPTAM4 Ib/ At pre-plantina & mixed in 30 4 147 4. .EPTAM 6 Ib/ A. pre-planting & mizecl in 28 ' 4 162 " 5. Cpd. B* 2 lbl A. pre-planting & mixed in 20 13 119 6. Cpd. B* 4 lb/A. pre-planting &mixed in 8 8 6S 7. Atrazine 1 lb/ At pre-planting & 1Iixed in 7 7 174 8. Atrazine 3 1b/A, ,re-planting & mixed in 1 7' 151 9. Atrazine 1 Ib/A. pra-eiraergence 3 8 162 10. Atrazine 3 Ib/A, pre-emergence 2 6 151 11. Simazine 1 1b~A. pre-planting" mixed in 14 11 165 12. SimB.'Iine 3 Ib/A, pre-planting & mixed in . 7 6 149 13.' S:1mazine 1 Ib/ A. pre-emergence 2 3 lS2 14. Simazine 3 Ib/ A. pre-emeraenee 1 2 149 1S. 2.4-D 1 1/2 Ib/A. LVI. pre-emergence 23 33 lSl 16. 2,4-D 1 1/2 Ib/A. granulated pre-emerge 77 60 115 17. 2.4-D 1/2 Ib/A. Amine. corn 8" tall 6 100 129 18. DNBP6 Ib/A, pre-emergence 23 38 140 19. DNBP3 lb/A. spike stage 25 24 158 20. Fenac 2 1b/ A, pre-emergence 11 6 129 21. i'enac 4 1bl A. pre-emergence 14 6 112 22. Randox 4 Ib/A, pre-emergence S2 48 119 23. RandoX** 4 1b/A + 2,4-D 1/2 1b/A 13 40 154 24. Ran~?x-T 3 1b/A (CDAA). pre-emergence 22 32 150 L.&eD. at 5% level 15 19 29 L.S.D. at 1% level 20 2S 38 *Cpd. B is Na-Salt of 2-m.ethoxy-3,6-dichlorobenzoic acid by Velsicol Company **B.andox appliecl as pre-eme'1'gence Ley 13 & 2,4-D as post-emergence June 10.
1 CHEMICAL QVACKGRASS CONTROL Jonas Vengris 2 This is a progress report of work done in 1959/60 with herbicides for quackgrass (Agropyron repens) control. Amherst.Mass. Experiment: Trials were conducted on a fine sandy loam with fair drainase. The experimental area had a good uniform stand of quackgrass.It was also infested with nutgrass (Cyperus, esculentus); however, the stand of nu~grass was not too uniform. Plots were 12x'25 feet in size. Two repl1cat~, were used. In the fall of 1959 treatments were applied on October)5 on-4; lush 8 inch growth of quackgrass. In the fall treatments, dalapon, atr~~ne and simazine were used. In all tables, rates are expressed as acid equivalent or active ingredient per acre. Five days after the application of herbicides, the experimental area was irrigated with 3/4 in. of water. By December 3, quackgrass plants treated with dalapon andatrazine were stunted and chlorotic. Simazine was less effective. On May 6, following, quackgrass stands were again surveyed. The results are shown in, Table I. In general all treatments were effective in suppressing quackQrass. Spring treatments ofdalapon and Fenac were applied on April 28 on 8 in. growth of quackgrass. On May 16 the whole experimental area was plowed, disked, fertilized and the seedbed prepared for planting corn. EPTAM,Atrazine and Simazine were applied as spring treatments on May 20. Three days later, May 23, Ohio M-15, silage field corn was planted. On some treatments (Table I), the applied herbicides were immediately it.ked in 4-6 in. deep. The followiog night 1/2 in. of rain fell. To control annual weeds, the whole experimental erea was treated on June 2 with 3 lb/A of DNBP. No cultivation was done. Quackgrass stand estimates were made on July 28 and again on September 15 (Table I) following corn harvest. The treatments applied in the fall of 1959 gave excellent quackgrass control with Atrazine being the most effective. There was little observable difference between the different rates used. During the growing season all the fall treatment~ became infested with nutgrass. The lush growth of nutgrass suppres8e~ quackgrass and thus indirectly increased the effectiveness offall treatments in controlling quackgrass. No one herbicide applied in the fall significantly controlled ~~ut -grass. Of the spring treatments, the best qu&ckgrass control was obtained with Atrazine. Mixing the applied Atrazine immediately with the soil slightly increased its effectiveness. The best nutgrass control was obtained with both rates of EPTAMand Atrazine, end the poorest with dalapon and Feoac. Corn was slightly stunted by Fenlltc and 6 Ib/A of EPTAM. Later on corn in these plots regained normal growth. 1. Contribution No. 1283 of the University of Massachusetts a College of Agriculture, Experiment Station, Amherst a Massachusetts. -- 2. Assistant Professor of Agronomya University of Massachusetts. Amherst. Massachusetts.
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THE USE OF VEGETATIVECHARACTERISTIC
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In a few grasses with smooth sheath
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5. FACTORSINFLUEUCINGTHE PERFORFANC
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7. The introduction of synthetic or
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The com;onents the distribution of
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grains. We early found that the oat
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13. Atrazine Days following cpm/O.
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15. not find an abundant production
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Weed Control In Suburbia 1 Howard H
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For establishing new lawns, I would
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Any improvement that you can make i
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PROMISINGNEWCHEMICALSFORWEEDCONTROL
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25. Promis ins results have also be
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27. (Lycbnis alba), cinquefoil (Pot
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THE EFFECTS OF ADDED PENETRANT AIDS
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... Surfactant Produced bz: . 31
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33. 33. of scintillation solution,
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Table 3. The Net Counts Per Minute
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The comparisons for lower leaves, s
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39. SUMMARY Tests using 2-C 14-1abe
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41. RECENTDEVELOPMENTS IN THEUSE OF
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second application be made not late
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45. Combinations of vegadex-Randox
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11/ Persistence of Soil-Incorporate
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Plot size varied from 9 sq. ft. to
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Lower rates of R-1856 were tested o
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greenhouse tests are listed below.
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PROGRESSREPORTON LAY-BYUEEDCONTROLI
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57. Table 1. Effect of sodium silic
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Sheets (1959) studied, under labora
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M, ',. • • •• • " ' Treat
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Figure 1. Relative performance trea
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A duplicate test was started August
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67. "he two tests which dealt with
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69. CONTROLOF WEEDSIN VEGETABLECROP
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71.' TABLE 3. RESPONSE OF VEGETABLE
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73. COHBIltit.TloNS' OF cnu:'PITH C
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75. Results The delay in applicatio
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77. Summary Logarithmic, tank-mixed
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(' ( ( Table 1 Rates and Dates of H
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( ( ( Table 3 Effect of Post-Tran~l
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( ( ( Table 5 Effect of Lay-By Herb
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Chemical Weed Control Charles J. No
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Table I. Weed control, plant stand,
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Table 1 - Table Beets Pre-plant; Pr
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91. Chemical Weed Control in Onions
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93. Table I. l;ced control, plant s
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95. Results Survey Table I of Hando
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97. Weed counts were made 3 weeks a
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99. Third applications were made on
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1t1. ~ata - Onion stand counts, wee
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The data in table 2 gives the signi
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The following effects were noted. 1
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PRE-fREATINGSOILS, APOSSIBLE.TECfiN
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· 109. Table 2. The influence of d
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..... 11 ... - Progress Report on W
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113. fndothal as a pre-planting inc
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115~ Table 3. Mean markebab l.e 9£
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1170 Chemical Weed Control Charles
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119. Table I .. Weed contrOl! plant
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121. '- The stand of plants of bo
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123. Table II. Weed control stand a
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EFFECTOF SEVERALHERBICIDESONEARLYYI
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Table 2. Calcula.ted ecre yields of
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129. - Treatment Average weight per
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-- The herbicides were applied on J
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133. Table 2. Effect of pre-plant h
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- 135. Dim tro for Weed Control in
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PJ,OORESSREPORT:ON.:WEEJhCGNTROL IN
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- Simazine 2 and 2 1/2 lb./A and at
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141. Results - .l2.22 Table 2 shows
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- !!!! Applications 143. The plots
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145. Conclusions ADexperiment carri
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147. Residual herbicide activity wa
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- Table 1. Herbicides and Rates Use
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~ __ ( ( ( Table 3. WeedControl on
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153. TreatiD§ Established Hemlock
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155. flowering and growth in the sp
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157. Table 2. Pansy Weed Control (P
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1590 Table 3. Herbicides Used on Tu
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------- -------------_._------ ..
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'. 163. In .Table 3 Co.mpariS01'U$
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1.65. "'-" Ia.!!l.! ! __!ind_a!!,d_
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167. Maleic Hydrazide for Weed Cont
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169. 1. Dana, M. N. Sensitive Fern
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171. -' Table 1. Amino triazole res
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1730 Additiona! apple .,samples wer
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more consistently effective than 5
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177. HUBICIDES roll YOUNGAPPLE TUES
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--. Table I. Treatments No. Materia
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Table 1 -Effect of Granular Formula
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iss. BVAWATIONor rIVE HEIBICIDES 10
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PROGRESSREPORT'ON WEEDCONTROL IN CA
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"'- Table' 1. Herbicide,s Used inCa
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189. Tabl\7 5. Rating ot BroodIest
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WEEDGONTROLIN SWBE:rCORNWITHDACTHAL
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D. FlantinB A!Plication of Thiolcar
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Table 2. Rainfall, Monmouth, Maine
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197. Table 4. rercent> Broadlear We
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1-. . " Table 6. Percent Broad1eaf
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'\) 0' ,.... • ( ( ( Table 9. Y
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ANNUALWEEDCONTROLIN POTATOESWITHDNB
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·205. Percen t Woad Can trol ·196
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, r t"
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Table 5. Annual Broadleaf Weed Cont
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211. Table 9. Effect of fast-Emerge
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2130 Conclusion There are quite a n
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SOMERESEARCHANDWEEDCONTROL METHODS
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-- ,,"I. ,'~; "... TABLEII. EFFECTO
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( ( ( - -~. , ~ ._w ~~ "PlOOl:tB21.
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'-~ With respect to asparagus. howe
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, 1 ,WEEDCONTROLIN ClaTAIN VlGBTABL
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225 • r '.,':' .TABU: ~~ ... ,WEE
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227 • . TABLEIV' -' WEED CONTROJ.
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2290 'of.' .'J • ~ : ~. ... :.' "
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231. Conclusions The results publis
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possibility of too severe thinning
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PRE-EMERGENCEWEEDCONTROLTN ceRN s,
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INCORPORATED ANDUNINCORPORATED·LIQ
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( ( ( Table 1. Weed Control Ratings
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at both weed rating dates at Newark
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DNBP - Zytron Mixture for Weed Cont
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~ •• 245. ·Res~1~8 fr.o.George
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247. Weed Control in Soybeans with
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249, EFFECTOF HERBICIDESONSEEDPRODU
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251. TABLE3. EFFECTSOF APPLICATIONS
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253. almost a week, with treatment
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( ( ( , Table 1. Effects of Various
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Table 3. anal.ysi.s of Soil l,esidu
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Results and Discussion ;llien the f
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4. Immediate treattlent injury to t
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( ( ( Table n. :'.!:sti.Jl'ated.'er
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have very littla real II'+eaningas
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267. Table 2. Pre-emergence crabgra
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269 • ..., : Table 1.. 1960, Rain
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271. Chlordane must be used at rate
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u • 2 ( ( ( t Table 3. Effect of
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275. Table 5. Effect. of preemergen
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277. In one area, the old turf was
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279. following application. The hig
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2$1. The standard date of applicati
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Table 2. Effect of season of applyi
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L 1-l34B9 ,Jiphenyllactelonitrile o
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287. Halts F-24, Halts F-26, Halts
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POST-.EJ.iEhGENCE CONThOLOF CIiABGI
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,veedone at 4 pounds of tL.cl per a
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( ( ( Table I. Post-Emergence Contr
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• •• ., .. • •• ',' •
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297. compatible with grub-proofing
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299, Diphenatrile Results During th
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301. tentative generic name triflur
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- 1 PRE-ENERGENCE CRABGRASS CONTROL
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Discussion 30; • a) Pre-emergence
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307. TABLEI -- Comparison of Produc
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-' Table II (can't) 309. Stand of S
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312. THEEFFECTIVENESSOF COMBINATION
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314. Table 2. Stand Counts and Sile
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316. planted control before these h
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Table II. The control of quackgrass
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320. growing season in the 1957-59
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322. Table I Main Effects of Cultur
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324. Atrazine by September 10 when
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326. Another effect of Atrazine tha
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32S. Amitrol-T was intermediate in
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Qolumn Separation: Cellulose. A 24
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332, Figure -I. Chromatogram of qua
Page 334 and 335: 334. PRELIMINARYRESULTSONTHE USE OF
Page 336 and 337: 336. DATEOF BERRYHARVESTAS IT AFFEC
Page 338 and 339: within three inches of the soIl sur
Page 340 and 341: 340 .. The growth ra.te of Horse ne
Page 342 and 343: 342. dish containing ten seeds bet\
Page 344 and 345: 344. is not a factor in in It is
Page 346 and 347: 346 • .Absornt:j.Qn Qn Exchange R
Page 348 and 349: 348. The' chrona tog ram."WaS first
Page 350 and 351: 350. PROGRESSREPORTON A STUDYOF THE
Page 352 and 353: 352. 7. Fluctuating warm and cold w
Page 354 and 355: 354. A clos.e correlation was found
Page 356 and 357: 356. 1 THE ANATOMICAL NATUREO:BTHE
Page 358 and 359: 358. The 2,4,5-TP was most effectiv
Page 360 and 361: Table I. Effect. of Pre-emergence T
Page 362 and 363: INTRODUCIIOB: THEEFFECTOF WEEDCOMPE
Page 364 and 365: 1";. 1958 JFab1e I (cont ' d) Treat
Page 366 and 367: 366. fiE USE OF FENACFOR QUACKGRASS
Page 368 and 369: 36$. SUMMARY: Based on a I).umber o
Page 370 and 371: - Table 1. Chemicals and Rates Used
Page 372 and 373: 372. On spring plowed plots I where
Page 374 and 375: Table 1. Treat.ments Used and Stand
Page 376 and 377: 37t. PRELIMINARYRESULTSONTHE CONTRO
Page 378 and 379: 378. CHEMICAL TREATMENTS FORTHECONT
Page 380 and 381: Table ;. Visual RatiDgs and Stand C
Page 382 and 383: ANN11AL WEEDCONTROL IN SILAGECORN1
Page 386 and 387: Sunderiand,' Mass..Experiment: In t
Page 388 and 389: ) ) BBLB I. QuackgT88S Control in F
Page 390 and 391: TABLEIII. Quackgr888 Control in Fie
Page 392 and 393: 392. herbicides. In senerel."we.had
Page 394 and 395: 394. RESULTS§e PISCUSSION In Augus
Page 396 and 397: 396. WHATHAPPENS TO PHENOXYHERBICID
Page 398 and 399: D. TASTEAND ODORSTUDIES Taste and o
Page 400 and 401: herbicides produces aquantit.at.ive
Page 402 and 403: 4('2. • A DECADEOF BRUSHCONl'ROL
Page 404 and 405: areas, fre1.uently the crews l'UIrL
Page 406 and 407: 406. During June and July 1959 a pr
Page 408 and 409: 408. Numerous chemicals have been u
Page 410 and 411: " A Progress Report on Urab * Brush
Page 412 and 413: 412.
Page 414 and 415: 414. Urab is an effective chemical
Page 416 and 417: 416. application. Atrazine has a wa
Page 418 and 419: 418. COMPARISONOF TECHNIQUESANDSPEC
Page 420 and 421: Table I - Results of chemicals appl
Page 422 and 423: 422. Results and Discussion Data fr
Page 424 and 425: 424. THE CONNECTICUT ARBORETUM RIGH
Page 426 and 427: 426. (Kalmia angustifolia) ,huckleb
Page 428 and 429: 42$. TABLEI (cont'd.) Technique For
Page 430 and 431: 43". by Leonard and Crafts (15) mos
Page 432 and 433: 432. awareness of the need for good
Page 434 and 435:
434. RECOMMENDAT:I"'NS FOR THE USE
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436. The recommended materials for
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438. NATURALANDSCAJ:'ING WITHHERBIC
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440. STATEHIGHWAYHERBICIDE POLICIES
Page 442 and 443:
442. There is a matter of judgment
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444. DATAON STATEHIGHWAYHERBICIDE P
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446. ROADSIDEBRUSHCONTROLWIM PHENOX
Page 448 and 449:
446. Spraying begins in Connecticut
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Basal applications can be applied e
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452. UMASSACHUSETTS PROGRESSREPORTO
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45,4. Again, since the solution is
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456. Statistics In 1959, the low bi
Page 458 and 459:
458. formation of seed heads. It wa
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460. In our northern division, we c
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462. '. 1. A. 200 ga'l Lons of' wat
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METHODSOF SMIJPLING RAG.hfEED POLLS
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counted. ThJ grqins m~y ba st~inad
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468. slide moved across the orifi~e
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470. INTERIMREPORTONAQUATICWEEDCONT
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,.' f'inal retJuJ.t was that the us
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474. taste and odor problems. The a
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476. AQUATIC'J1ElID.CONTJ3.,OL '65~
Page 478 and 479:
478. For example: Imagine, if you:
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enefit of those both us1ng the wate
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• • of ,-, "",jqc. '\:':' ',:,;
Page 484 and 485:
~ '. r; I ' ':'.' ~, ',;' '.'. 1·"
Page 486 and 487:
486. weeds increased the food 4.3 t
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..; . " .," .. ,', oontro..lbe ·oo
Page 490 and 491:
490. Idee1ly these woUld coVer' foo
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4')2. Literatm-o Cit~: Biolog:$,cal
Page 494 and 495:
494. SYSt.:Clil ..:ne sp:aying cont
Page 496 and 497:
496. 0ll'l;ljing, &hluL ..l V,~l"Y
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etween our sprayine=. operatdons an
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500. loblolly pine existed iii quat
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502. 'j' " Using results for all ou
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cut over several year. ,b.elozoe.·
Page 506 and 507:
506. HARJJ.rlOOD CONTROL WITHMIST B
Page 508 and 509:
508. distance was achieved. All sub
Page 510 and 511:
510. Hardwood oontrol within the li
Page 512 and 513:
• J ". 512. ~ ., and the weather
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) ) ) '.. . . hble). EffectbeneBB o
Page 516 and 517:
516. HERBICIDf;TECHNIQUE.:> ,FORTn-
Page 518 and 519:
518. The possibility o:rusing contr
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520 • . However, the capacity of
Page 522 and 523:
522. This is followed by planting i
Page 524 and 525:
524. AQJJATICWEEDCONTROLANDRELATEDP
Page 526 and 527:
526. findings we increased the amou
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52e. There is a constant reinfectio
Page 530 and 531:
530. in 1960 the Potamogeton re-app
Page 532 and 533:
532. PROGRESSREPORT ON THE FIELD TE
Page 534 and 535:
534. It· was tht.;n necessary to d
Page 536 and 537:
536. l.qunlin Hcrbici(.l(; pr-ove-d
Page 538 and 539:
;538. P.EFEP..ENCES 1. ijOSCIlETTI,
Page 540 and 541:
540. The oontrol plot was ohosen so
Page 542 and 543:
542. The dissolved oxygen content r
Page 544 and 545:
544. Summary 1. Six experimental pl
Page 546 and 547:
546. A PRELIMINARYREPORTON THE EFFE
Page 548 and 549:
that either slow chemical hydrolysi
Page 550 and 551:
550. In July of 1959 funds were mad
Page 552 and 553:
552. The barge was run at ~ speed o
Page 554 and 555:
554. areas successfully treated in
Page 556 and 557:
556. pick~rel spawning suacess but
Page 558 and 559:
Control of the Pondweed. Potamogeto
Page 560 and 561:
560. THE ABSORPTIONANDMETABOLISMOF
Page 562 and 563:
562. in controlling weeds in ponds
Page 564 and 565:
CommonName WEEDSCONTROLLED ANDAQUAT
Page 566 and 567:
566. PROGRESS-R!PORT·ON CONTltOLOF
Page 568 and 569:
568. Herbicides used for these stud
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570. StHtARy Invasion of Eurasian v
Page 572 and 573:
AUTHORINDEX(continued) ~ King, -Ken
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S/I/pg.2 Dinitro (DNOSBP) •• 11
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S/I/4 SUBJECTINDEX{corrt Lnued ) S/
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Vol. 15â1961 - NorthEastern Weed Science Society

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Vol. 15â1961 - NorthEastern Weed Science Society