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Vol. 16—1962 - NorthEastern Weed Science Society

Vol. 16—1962 - NorthEastern Weed Science Society

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Lima and ferd'1izer applications showed little effect on 1:ta.-ir .nil<br />

effectiveness of vadoul heJ;'bicid... r "r. ",.<br />

4S6<br />

TABLEIV. Re.idual Effect on Crabarass Seeded Plot. Rot Retreated in 1961<br />

Herbicide jH ;',". J,' "l'".,,):.t~l'. '(<br />

------------ ,.' "':'I;..!.~•• ggottgl_ ...<br />

Decthal<br />

Zytron (granular) ..<br />

Arsenical complex<br />

Calcium ar.enate<br />

PMA<br />

Zytron Emulsion<br />

Chlordane<br />

Procedure:<br />

..........• - . ,<br />

: \ sdJ<br />

:" '1 "ldJY<br />

,. i.a.l;q<br />

\ Bdl'<br />

J:.sV I<br />

t-d.l. I ~. I<br />

17<br />

46<br />

18<br />

39<br />

11<br />

69<br />

63<br />

{c,:·, .<br />

~ Li, .. :"<br />

, .;~ ~1.f··<br />

Several new introduction. a.well as those chemicals which had<br />

controlled crabgrass satisfactorily in tbe 1960 trial. were used. A,~r~.~<br />

of plot. 4'xlO' were set up with tbree replication.. The established turf· '<br />

consisted, of ~w;lq. ~uesral'. U~... J:r~v~.l.h) 1 0 ~lltll'''' (,Aa:ro.ti.palustris) I<br />

and .omeryegra6l(Loll,UIl spp.)~.t;i~;ar.. was be.:VJlNll:nfested With :~r..b~~' .•<br />

The sol1 was • sandy loam. Pertilber was applied totbe area in the fair of<br />

1960 and again: i~ t~!,sping o~ ~~~ll" The ch~~"'.~~9,e~, applied at ~e<br />

manufacturer-nc ... nde~.;r&te•• on"A.trj.114,.196Lj·T ,I,.: ,.,.,,; e,:<br />

(iJli.l<br />

,f!'"<br />

Relults: • r.:t ',-, 'j<br />

! i..> .nlr" t<br />

TABU V. EffecU.,.p •• O~ 're ..~~pn,~.; Crablra .... ~.rol. C".. icall<br />

Amher"t~"Mass. . 19'61' ""'-~';.' .<br />

• 1" 'i' . ,f ql<br />

Herbicides* Lbs. Active<br />

loarl4ieotLi;rt<br />

:,"'Jj;,';<br />

Dacth.l (Swift), 10<br />

Zytron, Dry (Dow) i':: :r' 15<br />

Calcium arsenate (Linck) .... . 4U:<br />

Calcium IIrsenate (Linck.) 8~6'<br />

Calcium arsenate (Linck)123~'<br />

Chlordane . 80',<br />

Diphenylacetonitrl1 (Connco) 2eL4'<br />

Diphenylacetonitrl1 (Alldco) ...2,5.4<br />

Calc1U1l1propyl arsonate (AzilChem) . Jl3.S<br />

U 4513 (Upjohn) . . 2.0<br />

\'dI (.~.<br />

i .'

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