Vol. 16â1962 - NorthEastern Weed Science Society
Vol. 16â1962 - NorthEastern Weed Science Society Vol. 16â1962 - NorthEastern Weed Science Society
188 Table 3. Potato Yie1da Following Planting and Emel'genoe Applioations of Val'ipua Hel'bloldes,:B1ock II. Rank Annual Annual Acre l'ate of herblolde Bushels per sPa as bl'oad1eat' (aoUve ms£edlent) aore oontro1 weed eontl'ol 6# Solan 1liM .512.7a 8 1 2# Prometryne EM .503..5a 10 1 3# Dupont 326 EM .500.7a 1 1 6# Niagal'a .5778 8M 490 •.5a 18 1 4.5# DNBP+ 2.22# Da1apon EM 489 •.5a 16 1 4# Solan EM 48.5.)a 9 1 3# Tl'letazlne PL 480.7a 22 1 4# Atl'ametl'yrle EM 472.3ab 7 1 3# Niagal'a 5778 EM ij67•.5abc 2.5 1 4#Pl'ome tl'yne PL 464.6abc 13 17 4# Dupont 326 EM ij61.8abc 1 4#~l'ome tl'yn e EM 461.5abc .~ 1 9# Nlagal'a .5778 PL 461.0abo 28 19 i# Atl'ametl'1J1~ PIt 460.0abo 6 18 #Nlagal'a 5178 PL 4.56.2abo 21 23 5# Dupont 32 EM 4.51•.5abe 3 1 2# Dupont 326J EM 'li50.8abe 2 1 4 •.5# DNBP EM, .433..5abe . 27 1 9# Niagal'a .5778 J!ltII !.j.27.0abo 14 1 2# Atl'ametl'yn$ PL 413.7abed 19 22 2# Atl'ametryne EM· 1j.12•.5abcd 11 1 2# Prometryne . PL 377.7 bede 20 4$ Dlphenamld .5OW PL 374. bode 17 3 Niagara .5778 PL 370. A ode 30 20 4# Dlphenamld-5OW PL .369.0 cde 12 25 2# Dlphenamld.8OW PL ·.325.7 def 1.5 27 Untreated 322.8 def 24 32 i# Falone EM 318.8 der 33. 30 # Falone EM 318•.5 der 26 21 1# Guol'on PL . 309.7 ef 32 29 2# Dlphenamld-5
Residue analysis of potatoes treated withtrietazine for weed control. l C. E. Olney, R."S. Bell and T. W. Kerr2 The compoundtrietazine, 2-chlor0-4-diethylamino-6-ethylamino-s-triazine, is a new herbicide being tested for the control of annual grasses and other weeds in potato fields. The present investigation was undertaken to determine whether measurable amounts of this herbicide would accumulate in potato tubers following applications in the field. The tubers analyzed were obtained from an experiment on herbicidal weed control reported by Bell et al (1) elsewhere in this journal. The potatoes were planted in late April, 1961 using four randomly replicated plots per treatment. While both the Delus and Kennebec varieties were exposed to the treatments, residue data were obtained from the latter variety only. The treatments and the amounts of trietazine (active ingredient) applied as sprays and the occasions when tuber samples were taken for residue analysis are presented in table 1. The pre-emergence treatment was made on May16, the posthilling on June 27, and the vines-down on August 15. Harvest of the potatoes was September 27 and 28. On each of the 4 sampling dates, 4 pounds of potatoes were obtained at random from each of the 4 replicates. These were then halved lengthwise and the halves diced into half-inch cubes, from which a representative 200 gram sample was taken. After homogenizing in a blender, each sample was tumbled with chloroform and filtered through anhydrous sodium SUlfate. The extracts were stored at 25Of. for future analysis. The analytical method was supplied by the Geigy Chemical Company(2). It is based m the conversion of trietazine to hydroxytrietazine by acid hydrolysis Table 1. Residues of trietazine in potato tubers following application in various treatments. Kingston, R.I. 1961. Treatment Active toxicant Pre-emergent 3 Pre-emergent plus post-hilling 3 + 2 Post-hilling 3 Post-hilling plUS vines down 3 + 2 and the determination of the latter by its line technique. Residue (p.p.m.) in tubers on dates indi,atedl 189
- 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 and 176: In table 2 are presettted weed a*1'
- Page 177 and 178: Since rec1root is only one of the I
- 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: 187 Table 2. Potato YIelds Followin
- 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
- Page 227 and 228: Because of the lush growth of quack
- Page 229 and 230: Table 2. Effects of Herbicides on Q
- Page 231 and 232: Table 3. Effects of Herbicides on A
- Page 233 and 234: 233 The inhibitory activity was ass
- Page 235 and 236: non-polar solvents. Table 5 shows t
- Page 237 and 238: 237 Figure I Bioassay of cbrOlll4to
188<br />
Table 3. Potato Yie1da Following Planting and Emel'genoe<br />
Applioations of Val'ipua Hel'bloldes,:B1ock II.<br />
Rank<br />
Annual Annual<br />
Acre l'ate of herblolde Bushels per sPa as bl'oad1eat'<br />
(aoUve ms£edlent) aore oontro1 weed eontl'ol<br />
6# Solan 1liM .512.7a 8 1<br />
2# Prometryne EM .503..5a 10 1<br />
3# Dupont 326 EM .500.7a 1 1<br />
6# Niagal'a .5778 8M 490 •.5a 18 1<br />
4.5# DNBP+ 2.22# Da1apon EM 489 •.5a 16 1<br />
4# Solan EM 48.5.)a 9 1<br />
3# Tl'letazlne PL 480.7a 22 1<br />
4# Atl'ametl'yrle EM 472.3ab 7 1<br />
3# Niagal'a 5778 EM ij67•.5abc 2.5 1<br />
4#Pl'ome tl'yne PL 464.6abc 13 17<br />
4# Dupont 326 EM ij61.8abc<br />
1<br />
4#~l'ome tl'yn e EM 461.5abc .~<br />
1<br />
9# Nlagal'a .5778 PL 461.0abo 28 19<br />
i# Atl'ametl'1J1~ PIt 460.0abo 6 18<br />
#Nlagal'a 5178 PL 4.56.2abo 21 23<br />
5# Dupont 32 EM 4.51•.5abe 3 1<br />
2# Dupont 326J EM 'li50.8abe 2 1<br />
4 •.5# DNBP EM, .433..5abe . 27 1<br />
9# Niagal'a .5778 J!ltII !.j.27.0abo 14 1<br />
2# Atl'ametl'yn$ PL 413.7abed 19 22<br />
2# Atl'ametryne EM· 1j.12•.5abcd 11 1<br />
2# Prometryne . PL 377.7 bede 20<br />
4$ Dlphenamld .5OW PL 374. bode 17<br />
3 Niagara .5778 PL 370. A ode 30 20<br />
4# Dlphenamld-5OW PL .369.0 cde 12 25<br />
2# Dlphenamld.8OW PL ·.325.7 def 1.5 27<br />
Untreated 322.8 def 24 32<br />
i# Falone EM 318.8 der 33. 30<br />
# Falone EM 318•.5 der 26 21<br />
1# Guol'on PL . 309.7 ef 32 29<br />
2# Dlphenamld-5
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