Vol. 16â1962 - NorthEastern Weed Science Society
Vol. 16â1962 - NorthEastern Weed Science Society Vol. 16â1962 - NorthEastern Weed Science Society
164 EQUIPMEmFORSPRAYING camaCAIS FORLAYB1' _ WHILECULTIVATXNG POl'ATOJl3 .. Arthur Hawldns 1 (IDNrROL Directing a spray appllcatlQn .0£chemicals to the· soil tor weed contm atter the Ja.st cultivation in potatoes is practica.:l4r impossible with standard potato sprayers when potato vines are large. Special equipnent would have to .be devised to part the vines and direct the spray on .the soU. It wu suggested to growers that low pressure spra7 equipment could. be used to spra7 the chemicals behind the hillers WlUe maldng the final cultivation. During the past three years, three Connecticut pot,ato growers equipped their tractors. with low pressure power take-oft pumpe and equ1p11Sntto sP!V weed control chemicals on the soil while IIBking the tinal cultivation with two-row equ1puent. Th87 obtained control of weeds with the chemicals applied ~ One of the growers built a platform at the rear ot his traotor to support a 50 gallon metal barrel which 'IIIIl.S used &8 a container tor the spray soluti6n. Copper tUbing was used to make the boom which 'IIIIl.S located behind the barrel. Twonozzles located behind each rear wheel and three nozzles on a drop pipe between the rows just behind the barrel, were directed to 81%'a7the soU. Regular potato sJra7llI'· nozzles with No."3 discs and 30 lbs. 1%'esstu"llwere used to ap~ 8 gallons of solution pel' acre. With a ditterent kind of traotor, another grower raised the drawbar sufficiently' to make room' for the power take ott-pumpJ the barrel WlUI located off-oenter on the drawbar. The third grower, using a tool bar (drawar removed), located two rectangular-shaped metal tanks of 4O-gal1on capacit7 between the wheels and the oontrols, the tanks were bolted to the axle housing. The spray nozzles' were attached to the spades held b;r the tool bar at the rear 6t the tractor. The nozzles wre direoted to spray the soil behind the spades. Thirt7 pound pressure was used to aPP4r 12 gallOI18 ot solution per acre. Rubber hose WILS used to aupp4r the nozzles irlstead ot copper tubing. 1 Agronom1et and Elttenslon Potato Spec1a1ist, Universit7 or Connecticut, Storrs, Connecticut
USE OF GRANULAR CHl!H[CALAPPLICATORFORLAY-mWEEDCONl'ROLIN POTATOES Arlhur HawldML/ 165 L8iv-btWged cont:rrol in potatoes was obtaine4:ldth granular formulations of several. chemicals when b~aat by hand a.tterthe: last cultivation in Connecticut in J.960.~:report;ed yield ~s of potatoes where chemicals controlled crabgrass' &rIiicaused little dr' no inJur;y to potatoe •• It appeared desirable to make hrthe1-com.parl.son& Usihg a commercialJ.y avaUable granular ohemical applicator. . . In 1961. g1'IlnU1ar formulations or several ohEll1o@3.swere aPplied broadcast with an eight-toot granular chemical a~V. Thegranulea were applied ldth1n Ii few hours to one day a.tter the fUtal cultivation of Katahd1n potatoes in six commercial fields. The hopper was adjusted to a height ot about six inches above the pOt~to. foliage to obtain satistactor,y spread of the granules. . f .... Burlap bags were attached behind the machine to brush granules 1'rom the plants to i'ed.uoe 1njur;y tram leat absorption ot c*"a:1n chemicals. The distribut10n of, granuJ:.es appellZ'ed to be unitom and l"esulted in unitorm control of weeds on the hills and between the rows nnder 1961 conditions. Ettective control ot weeds was obtained with '&I'llhular to:nnulations or some ot the chemicals applied at adequate rates with the granular applic8.toi'. Increases in yields ot potatoes to ~5% were obtained where crabgrass or barnyardgass was controlled. The high yield i.nIll-ease occurred in afield where a heavy population ot crabgrass was contro1.l.ed and potatoes were not ldlled by t'rost until Ootober 16. Since the machine used was of the gt'avity-teed type, a oonstant field speed was maintained to obtain a unitorm rate ot application. It was operated at a field speed ot 4 MPH(352 teet ot travel in one minute). When caJjhrating the machine, it was pulled at field speed tor a di$tance that would give 1/20 acre. The granules were caught in a piece ot plastic i'iJm.; the .contents were weighed in a pan .en a scale weighing accurately in ounces. It was 'eas1er to repeat ealL1brations tor 20 lbe. or more ot gNnu1es per acre than tor lower ratee. 1/ AgronoJllist &l'll1Ex!;ension Potato Specialist, University /')t Conn., Storrs, Conn.,' ., . 2/ Hawkins, Arthur. Post-Hill Chemical. Weed Contrel in Potatoes with Granular Formulations. Proc. NElNCC151100-181.. 1961. 3/ Manutaotured by Gandy' Co., Owatonna, Minnesota
- Page 113 and 114: CIPO, Vegadex, and Randox Singly or
- Page 115 and 116: Table 1•. Wa. control, stand of p
- Page 117 and 118: 'Ihree experiments were conducted i
- Page 119 and 120: a- Table 2_"COIIlpartsonof' Several
- Page 121 and 122: fJ Table 3. CcBparison of Several.
- Page 123 and 124: c
- Page 125 and 126: Table 1. Seeding and Weed Counts on
- Page 127 and 128: WEEDCONTROLANDTHE IMPROVEMENT OF SE
- Page 129 and 130: Following emergence of the tomato s
- Page 131 and 132: indicates that several of the treat
- Page 133 and 134: DISCUSSIONOF RESULTS Transplant Tom
- Page 135 and 136: harvest was covered with weeds, and
- 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: 163 Results generally were good wee
- 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 and 188: 187 Table 2. Potato YIelds Followin
- Page 189 and 190: Residue analysis of potatoes treate
- 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
USE OF GRANULAR CHl!H[CALAPPLICATORFORLAY-mWEEDCONl'ROLIN POTATOES<br />
Arlhur<br />
HawldML/<br />
165<br />
L8iv-btWged cont:rrol in potatoes was obtaine4:ldth granular formulations<br />
of several. chemicals when b~aat by hand a.tterthe: last cultivation in<br />
Connecticut in J.960.~:report;ed yield ~s of potatoes where<br />
chemicals controlled crabgrass' &rIiicaused little dr' no inJur;y to potatoe ••<br />
It appeared desirable to make hrthe1-com.parl.son& Usihg a commercialJ.y avaUable<br />
granular ohemical applicator. .<br />
. In 1961. g1'IlnU1ar formulations or several ohEll1o@3.swere aPplied broadcast<br />
with an eight-toot granular chemical a~V. Thegranulea were<br />
applied ldth1n Ii few hours to one day a.tter the fUtal cultivation of<br />
Katahd1n potatoes in six commercial fields. The hopper was adjusted to a<br />
height ot about six inches above the pOt~to. foliage to obtain satistactor,y<br />
spread of the granules. .<br />
f ....<br />
Burlap bags were attached behind the machine to brush granules 1'rom the<br />
plants to i'ed.uoe 1njur;y tram leat absorption ot c*"a:1n chemicals. The<br />
distribut10n of, granuJ:.es appellZ'ed to be unitom and l"esulted in unitorm<br />
control of weeds on the hills and between the rows nnder 1961 conditions.<br />
Ettective control ot weeds was obtained with '&I'llhular to:nnulations or<br />
some ot the chemicals applied at adequate rates with the granular applic8.toi'.<br />
Increases in yields ot potatoes to ~5% were obtained where crabgrass or<br />
barnyardgass was controlled. The high yield i.nIll-ease occurred in afield<br />
where a heavy population ot crabgrass was contro1.l.ed and potatoes were not<br />
ldlled by t'rost until Ootober 16.<br />
Since the machine used was of the gt'avity-teed type, a oonstant field<br />
speed was maintained to obtain a unitorm rate ot application. It was<br />
operated at a field speed ot 4 MPH(352 teet ot travel in one minute).<br />
When caJjhrating the machine, it was pulled at field speed tor a di$tance<br />
that would give 1/20 acre. The granules were caught in a piece ot<br />
plastic i'iJm.; the .contents were weighed in a pan .en a scale weighing<br />
accurately in ounces. It was 'eas1er to repeat ealL1brations tor 20 lbe. or<br />
more ot gNnu1es per acre than tor lower ratee.<br />
1/ AgronoJllist &l'll1Ex!;ension Potato Specialist, University /')t Conn., Storrs,<br />
Conn.,' ., .<br />
2/ Hawkins, Arthur. Post-Hill Chemical. <strong>Weed</strong> Contrel in Potatoes with Granular<br />
Formulations. Proc. NElNCC151100-181.. 1961.<br />
3/ Manutaotured by Gandy' Co., Owatonna, Minnesota
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