Vol. 16—1962 - NorthEastern Weed Science Society

412
volatile than No. 1 fuel oil, stapon the tree lozIpr and has a more lastiDg
toxl0 eUeot. It should be merrtioned that d8111118 to conifers occuiTl!l\\
on all plots. 1be ~ other ~0IlU8r ... reoarded>on a plot on Test 2
1ibereft_only was used as .~er. Sp.ruoe,t.Izo.,·*D1hemlook1l81'e~'
sensitive tQ all herbicides tbu p:lDe, bl.1tdaJIBP to.' these speoies did DOt
exoeed an acceptable J.evel.. .An/ClOoasione1leader '. side branch was k111;tc!,
bl.1tmost of the trees sho'Ied ne:evidence ot'dlllltie ..L . : ~~,
_ diesel o.:Q.. J$ttUre did ':noll...appea:t' to .:.. ,weU ar to 'hq' in.
the a:I.r·as.lq as tM. llihter,~ oil. There lIIm'egares of Wld811111fe4
trees ~.. en the strips, en ~ft1on that the JiIae:i1al did not dr:l.tt·WU.
He1gbt.~netllation tid not eqWl1 t.bat of the othe1"£~s. Diesel oU' .
should not be used in partable mist spr~rs, because .the operatCfl' will"04
the d~ dr~~d with oil. It No. 1 fuel oil or 1c«l'oseneis used, it w:Ul
evaporate t.rolIl tbeoperatar. re~, and he w:Lll 'ei:DI. -the. day dry and' ~artable.
lllmber l~ oU is SI.Ipe(l'icxr to d:l.esel aU ltieoause it gives herd1lOOd
~trcJ. equal to 01' better thIUl.4ieeel oil, gives; better he:l.ght peJltliratien,
and it does less damageto con:Lttlll'e..
I • [j
11:Ie.th1rd set ot matohillg:te.ets cOJllPuedoil.Lzttn.es at the rates of
oneand,t'WO,pounds per acre.'n. sta!lds treated .... s.tural and planted
Wbite piJltl.in'teJ'spersed with bsrdwoodtrees aDdsJaollibe. ),bat of the trees
were less. than 1.JdJ:'Wfeet in be:lcht. Aspen.was 1M pl'edom1nanthardwcca;
$pecles. Test 5,t1lO pounds 2; 4,,'-T in 4.'gallClill of fuel oil per aeH;
was.matched.ase:1JlBtTest 6, 1.J)OUIId2, 4, ,-T 1D .~~ tallons of fuel 011)
peraQre. ,!loth ~a_nts gavegoccl control of h~swith little.,p:I.M
damage•. '1rea~t.t the two-poulld leVel wassoDe_t better thim the ClI1ltpQ\lIld
treatment, bIlt the one-pclUDI1,'treatment0OlllP .. d ravarably with ot1Jiiif .
oil treatmerrts c~cted in other tes~ (Ta1lle 2) .~st of the low b:rU8h'
which showed :DOdllDl8J8i.J1these ~sts wasmalebe1'17,. huo1l;leberry, and laurel,
species ~ch were :Nllistent to·,eu the herbiQide.?te.ted, as :DOtedeu11er.
'1'1ft:lwhite oaksover laflin d:1.~·,end'more than'i!arWfset tall were JIn1ed
on this area. Co,u.l of aspen 'WI very good except "Ib8ilthe trees -.rea1lo've
the effect~:,erqe of the eq\dJlllltlit ~ the canap, was,80 dense that otiJ;fthe
lower branches were hit by the mist. , :::;" . . , ; .
ResproutiDsooow:ored a~ only on 8IIl8J.1e aspen end red map18~
Sprouts 'IIe1'eDI101Lmorea'bw:ldllDt;thesecond Y88r .at* spraying. SollIeof the
heed. high aspen atandswl11ch bd, :exQellent h&1'd1lP04:'oontrolthe first yeC'
. wit.b only l~ of the. stems sprcmt:tng·were severe;l$~ting with the pm. .
at the end o.f the aeootld grow1JlBsoson. This eXpe~Cle coupled with ob.IervatiOXlS·on
other .Bfeas treated w1tb.mist blown ,4Doe 1~7 pOints up·tljjt
fact tJl,at c~oJ. ami·not o~teJd.ll :l.s aoh1eveil1d.th mist spr~. TtIOor
more treatments may be Decessuy to briDg a slO1i'l1respOZl4iDgstand ot: Si:lftwoodsup
tllrough the oaqpetiDg h8:rdwoodswhich ere rell4ered less coupt1t1va
by the treat.meAt.ar ld.J.led. fJR411!DOd damage :Lsotlills1Progressi va, and Gtmtrol
may'bebetter 1!!18e.e~ or tb1r4Il'Pwing seuon attei'. spraying than it ..
the first ~,;"re... demaged .oclI'd.fers, on the otNr hand, quiokly rt~1'•
.-1 I
'!'bree sets of tests were made matching the stl1ldud oil mixture of
2, 4, '-Tasainst anel invert elllJ1sion of 2, 4, '-T. One set of tests was