Vol. 15â1961 - NorthEastern Weed Science Society

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212. Chemical We..JdControl in Swect Corn .'. ,~ ,. , Swect corn has,iooen weeded on a commercial basis for many years : with 'the chQJlj.¢als J 2,4-D or watersoJuble dinitro.\Under most conditions either of these chemlca,ls- do a satisfact'ory job'although . sarie times weeds are not controlled or crops injured.. More foolproof chemicals such as Atrazine and Simazine have lately been used in the weeding of corn. 'The experiment reported in this paper' is' a ' . continuation of work started years ago. Procedure , ' Tho variety NK 199 was seeded May 27, '1960. Pre-emergence treatments :,were apPlied 5 days' atter ,seeding and emergenoe treatments 10 days after stloo.:lng. ,Individual plots were 36 feet long and 3 feet wide. Treatments were randomized in each of 8 blocks. , ··1 The chemicals were applied with a small sprayer over the row for a width of 12 inches. Cultivation controlled the weeds between the rows. The growing season was cooler than average and rainfall below normal. 1Jl estimate of weed control was made August 10 on a basis of 1 to 10, 1 being most desirable and 10 being least desirable. Corn harvest was completed August 29. Results The results are presented in Table I. All chemicals gave highly significant increases in weed control as compared to the untreated check. The best weed control was in plots treated with Simazin, either liquid or granular, Atrazine, Diuron, Neburon, Benzac, or tho higher rates of Fenac and li.miben. Stand was significantly reduced by only one chemical Niagara 5996 applied at a rate of 4 Ibs. per acre. Yields as measured by nwnber and weight of marketable ears were with one exception not reduced by the chemicals applied. The chemical Benzac 1281 did greatly reduce the yield. The table shows that some rates of a number of chemicals did significantly increase the yield of corn. 1 Associate Professor of Olericulture, Dept. of Horticulture, College of Agriculture and Experiment Station, Pennsylvania State University, University Park, Pa.
2130 Conclusion There are quite a number of chemicals that looks promising for the weeding of sweet corn in addition to tho chemicals now recommended. Granular Simazine was· equal to liquid Simazin. Atrazine applied at emergence gave woed control and yield equal to Atrazine applied pre-emorgcnce. Diruon and Neburon gave good weed control and yield. Taking into consideration tho cost of the chemicals other cchemicals included in the experiment are worthy of consideration in .the weeding of sweet. corn.
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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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Page 163 and 164: '. 163. In .Table 3 Co.mpariS01'U$
Page 165 and 166: 1.65. "'-" Ia.!!l.! ! __!ind_a!!,d_
Page 167 and 168: 167. Maleic Hydrazide for Weed Cont
Page 169 and 170: 169. 1. Dana, M. N. Sensitive Fern
Page 171 and 172: 171. -' Table 1. Amino triazole res
Page 173 and 174: 1730 Additiona! apple .,samples wer
Page 175 and 176: more consistently effective than 5
Page 177 and 178: 177. HUBICIDES roll YOUNGAPPLE TUES
Page 179 and 180: --. Table I. Treatments No. Materia
Page 181 and 182: Table 1 -Effect of Granular Formula
Page 183 and 184: iss. BVAWATIONor rIVE HEIBICIDES 10
Page 185 and 186: PROGRESSREPORT'ON WEEDCONTROL IN CA
Page 187 and 188: "'- Table' 1. Herbicide,s Used inCa
Page 189 and 190: 189. Tabl\7 5. Rating ot BroodIest
Page 191 and 192: WEEDGONTROLIN SWBE:rCORNWITHDACTHAL
Page 193 and 194: D. FlantinB A!Plication of Thiolcar
Page 195 and 196: Table 2. Rainfall, Monmouth, Maine
Page 197 and 198: 197. Table 4. rercent> Broadlear We
Page 199 and 200: 1-. . " Table 6. Percent Broad1eaf
Page 201 and 202: '\) 0' ,.... • ( ( ( Table 9. Y
Page 203 and 204: ANNUALWEEDCONTROLIN POTATOESWITHDNB
Page 205 and 206: ·205. Percen t Woad Can trol ·196
Page 207 and 208: , r t"
Page 209 and 210: Table 5. Annual Broadleaf Weed Cont
Page 211: 211. Table 9. Effect of fast-Emerge
Page 215 and 216: SOMERESEARCHANDWEEDCONTROL METHODS
Page 217 and 218: -- ,,"I. ,'~; "... TABLEII. EFFECTO
Page 219 and 220: ( ( ( - -~. , ~ ._w ~~ "PlOOl:tB21.
Page 221 and 222: '-~ With respect to asparagus. howe
Page 223 and 224: , 1 ,WEEDCONTROLIN ClaTAIN VlGBTABL
Page 225 and 226: 225 • r '.,':' .TABU: ~~ ... ,WEE
Page 227 and 228: 227 • . TABLEIV' -' WEED CONTROJ.
Page 229 and 230: 2290 'of.' .'J • ~ : ~. ... :.' "
Page 231 and 232: 231. Conclusions The results publis
Page 233 and 234: possibility of too severe thinning
Page 235 and 236: PRE-EMERGENCEWEEDCONTROLTN ceRN s,
Page 237 and 238: INCORPORATED ANDUNINCORPORATED·LIQ
Page 239 and 240: ( ( ( Table 1. Weed Control Ratings
Page 241 and 242: at both weed rating dates at Newark
Page 243 and 244: DNBP - Zytron Mixture for Weed Cont
Page 245 and 246: ~ •• 245. ·Res~1~8 fr.o.George
Page 247 and 248: 247. Weed Control in Soybeans with
Page 249 and 250: 249, EFFECTOF HERBICIDESONSEEDPRODU
Page 251 and 252: 251. TABLE3. EFFECTSOF APPLICATIONS
Page 253 and 254: 253. almost a week, with treatment
Page 255 and 256: ( ( ( , Table 1. Effects of Various
Page 257 and 258: Table 3. anal.ysi.s of Soil l,esidu
Page 259 and 260: Results and Discussion ;llien the f
Page 261 and 262: 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
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334. PRELIMINARYRESULTSONTHE USE OF
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336. DATEOF BERRYHARVESTAS IT AFFEC
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within three inches of the soIl sur
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340 .. The growth ra.te of Horse ne
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342. dish containing ten seeds bet\
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344. is not a factor in in It is
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346 • .Absornt:j.Qn Qn Exchange R
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348. The' chrona tog ram."WaS first
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350. PROGRESSREPORTON A STUDYOF THE
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352. 7. Fluctuating warm and cold w
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354. A clos.e correlation was found
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356. 1 THE ANATOMICAL NATUREO:BTHE
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358. The 2,4,5-TP was most effectiv
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Table I. Effect. of Pre-emergence T
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INTRODUCIIOB: THEEFFECTOF WEEDCOMPE
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1";. 1958 JFab1e I (cont ' d) Treat
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366. fiE USE OF FENACFOR QUACKGRASS
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36$. SUMMARY: Based on a I).umber o
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- Table 1. Chemicals and Rates Used
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372. On spring plowed plots I where
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Table 1. Treat.ments Used and Stand
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37t. PRELIMINARYRESULTSONTHE CONTRO
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378. CHEMICAL TREATMENTS FORTHECONT
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Table ;. Visual RatiDgs and Stand C
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ANN11AL WEEDCONTROL IN SILAGECORN1
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TABLEI. field Corn tiead Control an
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Sunderiand,' Mass..Experiment: In t
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) ) BBLB I. QuackgT88S Control in F
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TABLEIII. Quackgr888 Control in Fie
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392. herbicides. In senerel."we.had
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394. RESULTS§e PISCUSSION In Augus
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396. WHATHAPPENS TO PHENOXYHERBICID
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D. TASTEAND ODORSTUDIES Taste and o
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herbicides produces aquantit.at.ive
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4('2. • A DECADEOF BRUSHCONl'ROL
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areas, fre1.uently the crews l'UIrL
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406. During June and July 1959 a pr
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408. Numerous chemicals have been u
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" A Progress Report on Urab * Brush
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412.
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414. Urab is an effective chemical
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416. application. Atrazine has a wa
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418. COMPARISONOF TECHNIQUESANDSPEC
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Table I - Results of chemicals appl
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422. Results and Discussion Data fr
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424. THE CONNECTICUT ARBORETUM RIGH
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426. (Kalmia angustifolia) ,huckleb
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42$. TABLEI (cont'd.) Technique For
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43". by Leonard and Crafts (15) mos
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432. awareness of the need for good
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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
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442. There is a matter of judgment
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444. DATAON STATEHIGHWAYHERBICIDE P
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446. ROADSIDEBRUSHCONTROLWIM PHENOX
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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
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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~
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478. For example: Imagine, if you:
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enefit of those both us1ng the wate
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• • of ,-, "",jqc. '\:':' ',:,;
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~ '. r; I ' ':'.' ~, ',;' '.'. 1·"
Page 486 and 487:
486. weeds increased the food 4.3 t
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..; . " .," .. ,', oontro..lbe ·oo
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490. Idee1ly these woUld coVer' foo
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4')2. Literatm-o Cit~: Biolog:$,cal
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494. SYSt.:Clil ..:ne sp:aying cont
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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.·
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506. HARJJ.rlOOD CONTROL WITHMIST B
Page 508 and 509:
508. distance was achieved. All sub
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510. Hardwood oontrol within the li
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• J ". 512. ~ ., and the weather
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) ) ) '.. . . hble). EffectbeneBB o
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516. HERBICIDf;TECHNIQUE.:> ,FORTn-
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518. The possibility o:rusing contr
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520 • . However, the capacity of
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522. This is followed by planting i
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524. AQJJATICWEEDCONTROLANDRELATEDP
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526. findings we increased the amou
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52e. There is a constant reinfectio
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530. in 1960 the Potamogeton re-app
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532. PROGRESSREPORT ON THE FIELD TE
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534. It· was tht.;n necessary to d
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536. l.qunlin Hcrbici(.l(; pr-ove-d
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;538. P.EFEP..ENCES 1. ijOSCIlETTI,
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540. The oontrol plot was ohosen so
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542. The dissolved oxygen content r
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544. Summary 1. Six experimental pl
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546. A PRELIMINARYREPORTON THE EFFE
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that either slow chemical hydrolysi
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550. In July of 1959 funds were mad
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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
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560. THE ABSORPTIONANDMETABOLISMOF
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562. in controlling weeds in ponds
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CommonName WEEDSCONTROLLED ANDAQUAT
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566. PROGRESS-R!PORT·ON CONTltOLOF
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568. Herbicides used for these stud
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570. StHtARy Invasion of Eurasian v
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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. 15â1961 - NorthEastern Weed Science Society