Vol. 16â1962 - NorthEastern Weed Science Society
Vol. 16â1962 - NorthEastern Weed Science Society Vol. 16â1962 - NorthEastern Weed Science Society
528 Pre- andpost ..emergejljCec:rabgrass contHi in lawn' turf l 'i t .... "., - R. B,. ~~'~C. R. Skog~~ If man could find a cheap,*,fticfent andsaf~;bbeinical to control the' "d"""""'" '~""I"'" ,',' conrnoncrabgrasses', Digitaria l'cblt*mwn and D " ungulntUs, tu,;f, t:ech~ nicians would be able to solve many chronic compla' 's. The crabgrasses"he ' versatile in that they grow vigorously under the various cutting heights normally employed for turfgrassesi'!~ 3/16 inches;,,:r~~er unmowedconditions, they grow into robust plants often reaching three feet in height. Because of their sun..loving hab,it and heat,to+uance they ~f..1~,t,and grow under ~ry high temperatures whel) basic l~~ ~asses fail. 1JlIae, grasses can aho :N~y adapt to fmile or infertile soil conditions var~9 greatly in reac:ti~ All of these factors may need to be c:onsidered in attempting to develop a themical control. Methpd§ and Hatedals , ~ ". ' :l All rates of applicationare,'iven in pounds '-. acre. Injury reJdinS. are read aSI 0 = no 'injury, 5= complete kill. Plant counts were made,p'¥,: counting crabgrass plants in two one-foot squares per plot. The average of plant counts was calculated and uS,ad to compute t~~ ~rcent control over check. Pre-ernergEince site The area selected for the pre-emergence tria!F.was a level, well-d:l'aned on Bridgehampton silt loam. The grass stand was several years old and consisted" ~nd.iJll1n1shing ordef"9f Col onialbentlW~ss, Kentucky bluegrass and Red fescue,. ,',_, " :/,:: " ' ,j--"""".' (.•.. ::"-'" '.·',-·Jr~""J In order to provide a untform stand of crabgraas'the test area was overseeded with crabgrass seed in November of 1960. Seed from 1959 and 1960 was mixed and broadcast over the entl'nLarea' inch and scarified with a verticut. J,' " after it< hlld been mowedto 3/4 of an '~.i: ,F'. Throughout ibe :1961 growin9('~~'$on the 9raS$,:JI8,~owed as neede,d at ,a, height of 3/40:f~ninch. Hea~~c:~ippings we~e ~~~, ,Frequent 11gh1
529 The chemicals were applied May3 •. The day was: clear and windy with 'an air temperature of 50 0F. The soil was wet and cold. Injury to the basic grasses was recorded threti'tiJnes throughout tl)e,season and crabgrass coverage estimates were made on August 11th and September J~th. C.rabgrass counts were made on September 19th. ',' I " The chemicals included, the rete of applicati~h, and the companies sOPPlying the materials are as follows: 1) Triflural1n (N,N-di-n-prOJ'¥l-2,6-dinitro";'4: trifluromethylanilinel 2, 4 S. 6 lb. Eli L11ly Company." . ,if . . at 2) Dipropal1n (N,N-di-n-propyl ..2,6-dinitro-4'lrnethylaniline) at 2,.4.& 8 lb. Eli Lilly Company.' .[' '. ,~' 3) Diphenatrlle (diphenylaoetonitr11e) at 30 Llb, Eli Lilly Company'Cat 26 lb, Agrico Crabgrass Killer; at 30 lb, International Minerals and Chemical Company. 4) Dacthal G-l.5 (Dimethyl' ester of tetra 10 S. 15 lb. Diamond Alkali Cheniical Company. chlbroterephthalic ,,, acid)l}t5, ;;' 5) Dacthal W-50 (Dimethyl ester of tetra chloroterephthalic acid) at 9.8 (Rid), at 10.8 (Vitogrow) - Swift Chemical Company. 6) Niagara 6370 experimental at 6 lb. Niagara Chemical Machinery and Chemical Corporation. . Division, ,Food 7) Bandane E.C. (pOlychlorodicyclopentadiene isomer) Velsicol Chemical Company. ',1 at 10, 20 S. 30 lb. 8) PEWCF-l08 (Chlordane and polychlorodicyctbpentadiene isomer) at'47 lb. O. M. Scott Company. 9) FEVCF-lll (Chlordane and pol ychlorodicyclbpentadiene isomer) at 57.5 lb. O. M. Scott Company. 10) FEVCF-1l3 (diphenylacetonitrile) 37 lb. O. M. Scott Company. 11) FEWCF-114 (polychlorodicyclopentadiene ·iibmer). O. M. Scott ~ompany. 12) HaltSF-2b (Chlordane) at 59.6 lb. O. M.~co.tt Company. ' . 13) Tricalc!um arsenate (Pur~e) at 355 lb. A~oW Seed Company. . 14) Calcium propyl arsonate (No Crab) at 40 11:>. Amchem. . 15) Zytron (o-(2-4-dichlorophenyl)0-methyl iS~~OPYl-phophoromidoth~~te) at 15 lb. Dow Chezn.ical Company.... .:, ' . 16) Corenco 106 (DiPhenYlacet..o.nitrile and DiS~ ... 1'1 methyl arsonate.Hex a hydrate) at 31.1 and 5.4 l.b respectively. Consolidate Rendering Company. 17) SD 6623 (Tri methyl sulfonium chloride) at 6 b. Shell Oil Co~pany. lb. 18) 75'){,Bandane and 25'){,Chlordane at 15 and 5,.20 and 6.6, and 30 arid 10 Velsicol Chemical Company. I, ": . . Post-emergence This area was located on asaridy loam s01l th~ was heavily infeste~,with smooth crabgrass. The stand of turf was thin andcpnslsted of Colonial bentgrass, creeping red fescue and Kentucky bluegrass~th,the former being the most prevalent. The soil in the test area was oflbw fertility and the turf was mowed regularly at a height of 1 1/2 inches.
- Page 478 and 479: 478 In general. the treatments appl
- Page 480 and 481: 4BJ days follow:lng the ohemical tr
- Page 482 and 483: ') ') ' :_B!.ue~s•. Fescue au:l~"
- Page 484 and 485: :". ',J P~E~ C!',. O~.C~G~S 'F.~HEM
- Page 486 and 487: Lima and ferd'1izer applications sh
- Page 488 and 489: 4es 1'.o~~1ty, ", .ewf!r''''rsenc.
- Page 490 and 491: } ) Table 1. Besu):ta.Qf 1961 pre-e
- Page 492 and 493: 492 corresponding plots on este.bl1
- Page 494 and 495: 494 ae.u!s,'I!IIDi,cua.:Lon leUllll
- Page 496 and 497: 496 D±!3pa,~n~ Resul te)I? .,l-ta,
- Page 498 and 499: 498 1 . 1 J. E. Gallagher and n. J.
- Page 500 and 501: 500 Da1;ejJ01 e~uations ~,a.;t'ollC
- Page 502 and 503: 502 TADLEIt Comparison of "severalc
- Page 504 and 505: 504 TADLE3: Pre-oemergence and poet
- Page 506 and 507: 506 Table 1. Re8eeding Resulte:afit
- Page 508 and 509: 5"8 d1propalin ortrifluralin 'at ':
- Page 510 and 511: 510 aUlIPIl iri '-1: ' D" "" Diphen
- Page 512 and 513: Fall ve. spriif ~nts .. 'Ibe",obl1.
- Page 514 and 515: 514 ~ Tab1e2. Cr&bgraS$'Contr01 in
- Page 516 and 517: 516 ,';1:".i'"'f'!r": :~,j i: .. r
- Page 518 and 519: . ~lS residual cemtrol of crabgrssi
- Page 520 and 521: 520 - . \.. ; ."," ,
- Page 522 and 523: 5~2 'rab4t13.· ~gtnc. ·QGabtiol:o
- Page 524 and 525: 524 PRE.._RGENCE AMU' POsT-EHERGENC
- Page 526 and 527: 526 Table 1. 'l'a):lsra,. ContrO.k1
- Page 530 and 531: 530 Prior to each chemical applicat
- Page 532 and 533: u 532 3) Those trea.t,mellts which
- Page 534 and 535: Table I (Coot'd) 27. JSc.F,~iOe t$~
- Page 536 and 537: 536 EXPERIMENTS ONTHECHOOCALCOIm'l)
- Page 538 and 539: ~______ , 53S Table 1: Control of c
- Page 540 and 541: 54' In a similar po st-ell1~rgence
- Page 542: 542 da~hal and diphenatrile) at ear
- Page 545 and 546: .. ";' -:' il; JT!.: .'\ i~'J" ; ~J
- Page 547 and 548: 541 Distr:tbution of radioacti~tl t
- Page 549 and 550: 549 •RESULTS The distribution of
- Page 551 and 552: GRAPHII: Comparison of the~.tl;'i~u
- Page 553: "-...-.. J.4 The distribution of r~
528<br />
Pre- andpost ..emergejljCec:rabgrass contHi in lawn' turf l<br />
'i t .... "., -<br />
R. B,. ~~'~C. R. Skog~~<br />
If man could find a cheap,*,fticfent andsaf~;bbeinical to control the'<br />
"d"""""'" '~""I"'" ,','<br />
conrnoncrabgrasses', Digitaria l'cblt*mwn and D " ungulntUs, tu,;f, t:ech~<br />
nicians would be able to solve many chronic compla' 's. The crabgrasses"he '<br />
versatile in that they grow vigorously under the various cutting heights normally<br />
employed for turfgrassesi'!~ 3/16 inches;,,:r~~er unmowedconditions,<br />
they grow into robust plants often reaching three feet in height. Because of<br />
their sun..loving hab,it and heat,to+uance they ~f..1~,t,and grow under ~ry<br />
high temperatures whel) basic l~~ ~asses fail. 1JlIae, grasses can aho :N~y<br />
adapt to fmile or infertile soil conditions var~9 greatly in reac:ti~ All<br />
of these factors may need to be c:onsidered in attempting to develop a themical<br />
control.<br />
Methpd§ and Hatedals<br />
, ~ ". ' :l<br />
All rates of applicationare,'iven in pounds '-. acre. Injury reJdinS.<br />
are read aSI 0 = no 'injury, 5= complete kill. Plant counts were made,p'¥,:<br />
counting crabgrass plants in two one-foot squares per plot. The average of<br />
plant counts was calculated and uS,ad to compute t~~ ~rcent control over check.<br />
Pre-ernergEince<br />
site<br />
The area selected for the pre-emergence tria!F.was a level, well-d:l'aned<br />
on Bridgehampton silt loam. The grass stand was several years old and<br />
consisted" ~nd.iJll1n1shing ordef"9f Col onialbentlW~ss, Kentucky bluegrass and<br />
Red fescue,. ,',_, " :/,:: " '<br />
,j--"""".' (.•.. ::"-'" '.·',-·Jr~""J<br />
In order to provide a untform stand of crabgraas'the test area was overseeded<br />
with crabgrass seed in November of 1960. Seed from 1959 and 1960 was<br />
mixed and broadcast over the entl'nLarea'<br />
inch and scarified with a verticut.<br />
J,' "<br />
after it< hlld been mowedto 3/4 of an<br />
'~.i: ,F'.<br />
Throughout ibe :1961 growin9('~~'$on the 9raS$,:JI8,~owed as neede,d at ,a,<br />
height of 3/40:f~ninch. Hea~~c:~ippings we~e ~~~, ,Frequent 11gh1
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