Vol. 15—1961 - NorthEastern Weed Science Society

206.
D. COm'Pi:t'ison Of-~P~st';"Eine'~smo,~ Applications of Solan and Ft-:.lone
. : -, Thr~e.~d,-.~J.:X pounds; of So~n, ,~nd 6 pounds of F~lone applied
pc;>st-emergeJ:lce, ,·did not"'siSni1'l~~ahtly ,.affect theyi'eld of.'-Ketahdin
potatoes,' ~apl-e 9. S1.x pounds ot, Solan gave s>i;gnl.f1ca~tly better
'br~adlea~..weed con troJ.. ,than either.3 pounds of Solan o,r 6 pounds
of" Fa Lone , The prinQ1pa~ 'weed,. L.a~squarters, was six inches tlllll
• at the time of spray1hg.
" 'conclus1on s.
Unde-I' the tr.Ai.Qf'~ii,'ccnd1tlons' preva1ling .1D.., .1960 i,n blocks in
which annual grasses were not present in competitively significant
amount, none of the candidate herbicides in pre-emeI'gEmce te'sts
;pl1oduceds:1g1l'1f1caatly h1gil13rylelds of Katahdin potatoes than the
stan~d tr'aatmQnt,:QtJ p()\AQd$DNBPplus Z .22 pound~ ot palapon
per 'llare • ; .. .
Treat,nlentsprodu.qUl&yields stat! stical1y: e'qu~l to those or
standard 'wezt;81: '.
8 pounds Decthal
12 pounds Dacthsl
JSpounds Dacthal plus .3.pounds DNBP
'6 po.~as(Daoth~J.·plU.s2 or4poundsTr1et·azine
4 pounds -nactha l' plUS 4 pounds 'Trietazine
.' a pounds :a.c.tbal.plus
2 or 4 RQun4s Trietazine
..• ;,? 8~ pounds Fal.ono;· . .
(, pounds. EPTG '. . .. . .
6 pounds n~propyl-c;ll".n:,pr9PYl th10l ysrbama be
. ,rn'"1960 theeotr1b1n~~~on !treaf~~t pf::P.cthal p1U'$'Trlet$zine
was not s1gnificantly bette.· t;hen T~~.eta.ziP.e aloi}~" B1 combining
data for 1959 and 1960, however, it can be hypothesized, that a
mixture of Dacthal and Trietazine compared to either material alone,
m1abt:1,psur~.