Vol. 15â1961 - NorthEastern Weed Science Society
Vol. 15â1961 - NorthEastern Weed Science Society Vol. 15â1961 - NorthEastern Weed Science Society
242. THE EFFECTSOF SEVERAL CARR!ERSdF'2,4-D AND ITS .FORMuLATIONSON WEEDCONTROLAND ON THE RESPONSE OF CORN Richard D. Ilnicki l and C'. Fred· Everett 2 . ABSTRACT The use of 2,4-dichlorophenoxyacetic acid: (2,4-D)' for the control of weeds in corn has become an accepted practice. Corn is classified as being moderately resistant to injury from this herbicide. Generally, post-emergence applications of 2,4-D are sate; however, pre-emergence applications on light soils, followed by excessive rains may cause severe injury. Since the advent of the granular carrier considerable interest has been given to granular preparations of herbicides in order to increase herbicidal activity and/or to reduce crop injury. The objectives of this study were to measure herbicidal activity and the response of corn to several formulations, carriers, and concentrations of 2,4-D. The following comparisons were made: liqUid vs. granular preparations of both esters and a~1ne8; a 10% vs.-a-20% ester granule; and slow vs. fast disintegrating granules of the parent acid. Rates of-rand 4 pounds per acre of the acid equivalent were applied the day after planting. The follOWing observations were made: in general, granular preparations, both of the esters and amines, produced slightly better weed control but effected greater injury to corn than the liqUid preparations; the 10% granular ester preparation gave better weed control with slightly more injury to corn than the 20% granular ester; better weed control with less corn injury was obtained with the liqUid ester than with the 20% granular ester preparation; and" the slow disintegrating granule was superior to the fast disintegrating granule, however" yield reductions were less with the latter. lAssociate Research Specialist in Weed ContrOl, New Jersey Agricultural Experiment Station, Department of Farm Crops, Rutgers--the State University, New Brunswick" New Jersey. 2aesearch Assistant" Department of Farm Crops, Rutgers.
DNBP - Zytron Mixture for Weed Control in Soybeans 'J.I 243. F. B. Springer, Jr. and R. H. Cole ,~.,;", :'~,; "~~ .'...... \ "':L:
- 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 and 212: 211. Table 9. Effect of fast-Emerge
- Page 213 and 214: 2130 Conclusion There are quite a n
- 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: at both weed rating dates at Newark
- 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
- Page 263 and 264: ( ( ( Table n. :'.!:sti.Jl'ated.'er
- Page 265 and 266: have very littla real II'+eaningas
- Page 267 and 268: 267. Table 2. Pre-emergence crabgra
- Page 269 and 270: 269 • ..., : Table 1.. 1960, Rain
- Page 271 and 272: 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
DNBP - Zytron Mixture for <strong>Weed</strong> Control in Soybeans 'J.I<br />
243.<br />
F. B. Springer, Jr. and R. H. Cole <br />
,~.,;", :'~,; "~~ .'...... \ "':L:
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