Vol. 16—1962 - NorthEastern Weed Science Society

Vol. 16—1962 - NorthEastern Weed Science Society Vol. 16—1962 - NorthEastern Weed Science Society

08.06.2015 Views

262 Table' s..' HumbelhofCQrn:;ihQt,,,if:.zo ,2$,F'_-';t~'l,R~. , . Aor. rate of ;,' active ingredient, ., 2#,\A~~.. 1ne,." ;; -, J 6#,NI,'i'l'a 5778 8# N18iar. a 5778 10# Rt;h41 10#:....·Rt.34 6 O 5#,J~-3400 5#r,R-)ij41 51,R-3408 10# R-.3408 \.) • = ,o,,'!. !.. r ..1 11 Banve1 T '. . . I J# CUQl'on c, ~ ?./j.Diab..nam1d 8OW..'. I ; ,. 3# DUPQnt 326 + 2#~D:1phenam14:8OW 3# DupQnt .326 ." ii 6# DUPQnt 326 . ; , •. ~ ..'.",'.__.,s ._.,-.•.£,. t 4X, a ,·4 ; ._. _-,vrn-n'S·d.H oonverted: \IT.+ .9~. 1;': .' ",: ' . .. '-~"Il'f"'-­ reoonverted to n\lllJ_er8 1I P1 = a:gp,~1.d,~tpl~tlng;,i.re =·appl1~~.-p~merg~Q". I, ?sIMea.n~~~tn8';/:l•. 8~ .!~~l'.,des.18natlQ,M,,:do not. 4Uf;el',.~1~ . f1oant.ly,%~;~ ,5%leveJ;, (Dw1Q8l).'. l1ul!~-e Range T-.st).. iJJ " .. V" . 1,

EVALUATIONOF FIVE _~p>I!:S FOR KILLING ~TABLISHED POISON. IV¥ IN AN APPLEORCHARD~ YEARSFOLLOWINO"t\SINGLETREATMENT •.. Oscar E. Schubert l: This study is being cont1n~1i to detennine th~:-number of years a single herbicide application will give ~'significant redubtion in poison ivy when compared with unsprayed chec'ks-; .Add1tional detail's tli"'the experiment and yearly results have been repor1:;E!~Jn the ProcEledings of the Northeast Weed Control Conference (1,2,3). .... ".!: . Seventy-two plots (l/lOOth"acre in area) were::~ls.ssified according to the relative denSity of poison ivy, and then groupc'~lnto twelve replications, each with similar poison ivy stands. Six replications composed of six plots each were laid out around treell' ..8:Qdo.nother sUe replications were laid out in spaces between tree plots itf the tree row. The~erbicides were applied at ra.nliom within each replication. ' Between A\lgUSt 13 and 17, ,1957, ATA, 2,4,5-'1' ~~ter, Sllvex, 2,4,5-'1' Amine, and Ammate were applied tQ, J(ell established.:iioison ivy in a mature. apple ore:bB.rd'. All herbicides,~x

262<br />

Table' s..' HumbelhofCQrn:;ihQt,,,if:.zo ,2$,F'_-';t~'l,R~. ,<br />

. Aor. rate of ;,'<br />

active ingredient, .,<br />

2#,\A~~.. 1ne,."<br />

;; -, J<br />

6#,NI,'i'l'a 5778<br />

8# N18iar. a 5778<br />

10# Rt;h41<br />

10#:....·Rt.34 6 O<br />

5#,J~-3400<br />

5#r,R-)ij41<br />

51,R-3408<br />

10# R-.3408<br />

\.)<br />

•<br />

=<br />

,o,,'!.<br />

!..<br />

r ..1<br />

11 Banve1 T '. . . I<br />

J# CUQl'on c, ~<br />

?./j.Diab..nam1d 8OW..'. I ; ,.<br />

3# DUPQnt 326 + 2#~D:1phenam14:8OW<br />

3# DupQnt .326 ." ii<br />

6# DUPQnt 326 . ; , •.<br />

~ ..'.",'.__.,s ._.,-.•.£,. t 4X, a ,·4 ; ._.<br />

_-,vrn-n'S·d.H<br />

oonverted:<br />

\IT.+ .9~.<br />

1;': .' ",: ' .<br />

.. '-~"Il'f"'-­<br />

reoonverted<br />

to n\lllJ_er8<br />

1I P1 = a:gp,~1.d,~tpl~tlng;,i.re =·appl1~~.-p~merg~Q". I,<br />

?sIMea.n~~~tn8';/:l•. 8~ .!~~l'.,des.18natlQ,M,,:do not. 4Uf;el',.~1~<br />

. f1oant.ly,%~;~ ,5%leveJ;, (Dw1Q8l).'. l1ul!~-e Range T-.st).. iJJ " ..<br />

V"<br />

. 1,

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