Vol. 15â1961 - NorthEastern Weed Science Society

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324. Atrazine by September 10 when the carbohydrate depletion reached 79 per cent. The effectiveness of Simazine~ however~ failed to persist~ and by May 10~ 1960 the reduction in fructose content was only 43 per cent~ or less than 1/2 that of Atrazine. The difference between Atrazine and Simazine was never s~gnificant until the final sampling period. However~ the fructose content values resulting fram the action of both herbicides were significantly lower at the one per cent level during the first four sampling dates than the quackgrass receiving an application of Amitrol-T~ Fenac~ Dalapon or no herbicide. Treatment with Amitrol-T showed a small early decrease of 23 per cent on June l5~ but it was significant only at the five per cent level. However~ its effect increased and resulted in carbohydrates ranging between 31 and 43 per cent lower than the untreated plots at the later sampling dates. Applications of Fenac or Dalapon showed no significant effects on carbohydrate content until fall. By September 10~ they resulted in decreases of 22 and 26 per cent~ respectively, which were significant only at the five per cent level. Samples collected in late autumn 'showed only slightly greater depletions which were highly significant compared to the quackgrass receiving no herbicide. The effects of Fenac and Dalapon decreased slightly during the winter and follOWing spring, shoWing significant differences only at the five per cent level from the May 10~ 1960 data. Fenac and Dalapon were never significantly two sampling significantly different from each other. lower fructose content than Penac or dates. Interaction between cultural and chemical treatments: Amitro1-T Dalapon only resulted at the in first Although the interaction between cultural and chemical treatments on the fructose content of quackgrass rhizomes was highly significant at all sampling periods and any trends throughout the season will be discussed~ the data from only one period (November lO~ 1959) are presented in Table III. An explanation for the significant interaction can be given by comparing the effects of the various herbicides with each cultural treatment. The most striking case is the treatment in which 'no cultivation was applied. The greatest depletion of food reserves did not occur in the fallowed or plowed quackgrass as might be expected. Atrazine actually enhanced the depletion of carbohydrates when no disturbance of -the soil took place, though the difference was not usually significant. With the exception of Atrazine, the herbicides induced a relatively minor depletion throughout the season when not followed by a cultural treatment. There was some indication toward the end of the 1959 season that the S~azine application without cultivation was equal or superior to the same application with cultivation. However~ by May 10, 1960 the Simazine plots under no cultivation or single plOWing failed to show significantly lower fructose content values than quackgrass receiving no herbicide or cultivation. Until the May, 1960 sampling, the differences between Atrazine and S~azine under the various cultural treatments were never significant at the one per cent level, although they were always significantly lower than the uncultivated check.
-- 325. . 'r Table III Interaction Between Cultural and Herbicidal Treatments on the Fructose Content of Quackgrass Rhizomes (sampled on November 10• 1959) . " "} ! 8ignifi- , 8ign1£i- ! Treatments cant at Mean (%.' cant at 'Per cent Cultural Herbicide 1% fructose) 5% Reduction No cultivation Atrazine 0.8 I 98 i ' Fallow Simazine I 3.4 91 I I I j- i Fallow Atrazine S.4 86 - I Fallow Fenac I 5.4 " . 86 I '. No cultivation Simazine 1 6.9 82 Fallow Amitrol~T 8.0 79 I I I I ! I i I Plow Atrazine 8.2 78 . Fallow Dalapon Plow , Fallow Plow Plow Plow·ṭ No,cultivat;ion, No cultivation. No cult:!.vation, Plow No cultivation, .; Simazine .Noherbicide Datapon, ' Amitrol-T .,·.Penac Amitrol-T Fenac DaLapen ' No herbicid-e' o' No herbicide , .. .- I r "'1 '-. I ' I t " i " " I I L I I 1 I ,II• I I ~ : '. I 1 9.S 7S , 9.6 14.2 19.9 20.6 25.2 ,27.3 31.1 33.5 34.1 38.0 '! Ị . ~ . I , -' . I I f I ; I . ! . I i .1 f I' 7S 63 48 46 34 28 17 12 10 " " , .
Page 1 and 2:
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
Page 273 and 274: u • 2 ( ( ( t Table 3. Effect of
Page 275 and 276: 275. Table 5. Effect. of preemergen
Page 277 and 278: 277. In one area, the old turf was
Page 279 and 280: 279. following application. The hig
Page 281 and 282: 2$1. The standard date of applicati
Page 283 and 284: Table 2. Effect of season of applyi
Page 285 and 286: L 1-l34B9 ,Jiphenyllactelonitrile o
Page 287 and 288: 287. Halts F-24, Halts F-26, Halts
Page 289 and 290: POST-.EJ.iEhGENCE CONThOLOF CIiABGI
Page 291 and 292: ,veedone at 4 pounds of tL.cl per a
Page 293 and 294: ( ( ( Table I. Post-Emergence Contr
Page 295 and 296: • •• ., .. • •• ',' •
Page 297 and 298: 297. compatible with grub-proofing
Page 299 and 300: 299, Diphenatrile Results During th
Page 301 and 302: 301. tentative generic name triflur
Page 303 and 304: - 1 PRE-ENERGENCE CRABGRASS CONTROL
Page 305 and 306: Discussion 30; • a) Pre-emergence
Page 307 and 308: 307. TABLEI -- Comparison of Produc
Page 309 and 310: -' Table II (can't) 309. Stand of S
Page 312 and 313: 312. THEEFFECTIVENESSOF COMBINATION
Page 314 and 315: 314. Table 2. Stand Counts and Sile
Page 316 and 317: 316. planted control before these h
Page 318 and 319: Table II. The control of quackgrass
Page 320 and 321: 320. growing season in the 1957-59
Page 322 and 323: 322. Table I Main Effects of Cultur
Page 326 and 327: 326. Another effect of Atrazine tha
Page 328 and 329: 32S. Amitrol-T was intermediate in
Page 330 and 331: Qolumn Separation: Cellulose. A 24
Page 332 and 333: 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
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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
Page 408 and 409:
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
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~
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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
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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
Page 526 and 527:
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
Page 534 and 535:
534. It· was tht.;n necessary to d
Page 536 and 537:
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
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
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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
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562. in controlling weeds in ponds
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CommonName WEEDSCONTROLLED ANDAQUAT
Page 566 and 567:
566. PROGRESS-R!PORT·ON CONTltOLOF
Page 568 and 569:
568. Herbicides used for these stud
Page 570 and 571:
570. StHtARy Invasion of Eurasian v
Page 572 and 573:
AUTHORINDEX(continued) ~ King, -Ken
Page 574 and 575:
S/I/pg.2 Dinitro (DNOSBP) •• 11
Page 576:
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