crop-chem-docs/corpus/epa_ppls/5481-115.md

# DURHAM DURAPON GRASS KILLER

- EPA Reg No: **5481-115**
- Registrant: AMVAC CHEMICAL CORPORATION
- Signal word: Warning
- Active ingredients: Propanoic acid, 2,2-dichloro-, sodium salt (85%)
- Label accepted: 1971-07-29
- Source PDF: https://www3.epa.gov/pesticides/chem_search/ppls/005481-00115-19710729.pdf

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COMPOSITION 
A~~IVE INGRtDIENTS: 
:~dium Sail or Dalapon (],2·Dichloropropionic Acid) 
Dalapon (2,2·Dichloropropionic Acid) Equivalent 74 0 0 
INERT INGREDIENTS 
Total 
WARNING 
85.00 0 
15,OOt> 
100.0·" 
KEEP AWAY FRDM DOMESTIC ANIMALS AND FOODSTUfFS 
Callses ej<.' 1'1:1"t,oo, May cause skin ifF.::I!ion. Usc o:;'v "illl 
ade~uJte vpntl:]!II)11 :"\,old con tad t.lth c)rs r)K:n ~nd clothing. 
Wash tilO'(",,'l;) after handling. In rase d u·llla~t. fiusf, hes 
With p:~.nt) of ,,·,."!tpr far at I(lJ~t 15 miIlJ\(:s and i:,,,t r:lh.h.J! 
allellt,on Fur ,I .1. lefflo'it (ol'ia:ninakti cloll.ing d',." ,,,Ii Skill 
With p!en!, _ waler. l'ia~ h clothrng before ,"use. 
WARNING 
DURHAM DURAPON in the soil may inhibit ~eed re~mil1,::l,on and 
plant prr-~th for 30 dan or Illace, dcpend'ng on djsdre .1pp'kd. 
>v" type. t"mpelature, JnJ amount of sod IllCrotUIC and lainfall. 
C.ccerdingly. on land to be plan led to sensrll,e crops Such as 
small grams, COin er be"ns delay p!?n'ln;> for ;]t ;eJ'I 3J d.l," 
after plowrng Nea> sprayed lI.th DURHAM DURAPON. Decompo· 
sition of DURHAM DURAPON p'9~eeds most rapidly in warm, 
moist soil. If soil lemains cool or dc,. rle,8mpo~iticn may be 
slower, and more tl:TIe will be 'e:;JlleJ alter, ~!a'~rng befole 
c'ops can be planted safely. To aVJIO po>slbrl,ty a! le"JUeS 
i~ .;'eat or milk. do not graze meat or ~a;IY Jlllllla:, C:J vege· 
lation treated With DURHAM DURAPJN. 
GENERAL USE PRECAUTIONS 
READ ENTIRE LABEL BEFORE USING. 
DURHAM OURAPON ShOUld be used onlv lor re<:onll"('nded pu" 
poses and at recommended r ales IDD NOT OVERDOSEJ 
Do not store near seeds or fertiiizer. 
Do not :ontaminate irrigation .':a!er or WJter used for d3111c;t1C 
purpose~. To aVOid inlU'Y to deslla~le plants. do nel a1l0\'/ SPidY 
or spray drrft contai~lOs DURHAM DURAPON 10 (ontact fc,,3ge 
or roots of surn pla:l\' l'l:llJd::lg la,ms and otllrr desi'able 
turf. Flu:>h sp;aYIr.g equ,prle~~t ,'.,(h ~~t.ll~Y of ",a~c, i~;;-;!f:ciJtf!ly 
after use to aVOid conidnli~lJl'C!l of 1,;1tr ~pr~i') G: p'JsS:1b:e 
corrOsron, When USing DURHAM DU:?APON In J (OC, JI"atlr.~ 'PloY 
.. ..th other herbi i~c, be SUle to lead riC drrecLuns Jllj p-e· 
cautions on the ilerb'cide ccntainer. 
TO AVOID CAKING, KEEP INNER POLYETH"tlENE BAG TIGHTLY 
CLOSED. 
CONTAINER DISPOSAL: Do not reuse e1\~tY lJnta,k:~, Dcst:oy 
by bUlylOg III a sale p'ace v .. th otilel wast.:. 
WEEDS CONTROllED: DURHAM DURAPON ;s used to cne'lol all 
anra.JI g:tl::~l;~ Su";~ ,J) CtJb&!d~j. L"~1!; . .v.)terg·J~S an~j cs· 
tabll)hed pere:l'11c11 £,J'.S(:) ',:::.:1 ~s qU.j>'F;rJ~.C:;. Be;[IIJda.Jrfi~$ 
calkl;. Johr.;'Jngras'. Pr,I,'gr.'·!('S and I'!:J L'ass. DURHAM 
DURAPON is most effrLi:ve as a f~I:,lec SP' a;(, all'1f'ugh It nl"Y 
"iso be absc~bed Ihrough p!dnl lools DURHAM DURAPON may 
be used [11 COll,bmatlon · ..... iHl herb[':[de~ ~u~h as ~,EP "";ne 
dnd :,.; D f.111,ne formulJllons. 
DURHAM DURAPON GRASS KILLER 
DIRECTIONS FOR USE 
MIXING: S;Jr ay tank should be al least hJIf lull of water before 
"a.ll'" DURHAM DURAPOIi. ~;jd DURHAM DURAPDN ,lowly and 
,I:' !~ c,'soive ;t completely lJ\e enough water (]O to 40 gal· 
I'" P " r,' I~I £000 spr a'i r.0W a~e DURHAM OURAPON con, 
: 'I' a ~":'I!J!lg agent which i, .1dequJte for many ["l S, but 
.... 'r!! Illacy pe:cnnlal grasse'. 1I1<1t are d,llleult 10 wet, or when 
if,' ·,.:es of DURHAM DURAPON a'c used, parlicularly rn highly 
,':uleJ SpH,S. the lise of ;, non·ionic welling agent. such as 
j',,':s:roJd 8 or Alco All PlJrpose Wrlling Agent. at ,ecom· 
. "~JcrJ rJ,(-, lJIay be helpful III obtainlO~ maximum control. 
COMBINATION SPRAYS: In sprays that contain 2.4·0 do not use 
mere Ihdn 8 Ibs. of DURHAM DURAPON in 10 gallons of water. 
rl.ix DURHAM DUHAPON and waler first. then add 2,4·0. 
AIRPLANE APPLICATION: Use suggested rates of DURHA,. DURA· 
PON 10 5 to I 0 eailo~s of waler for preplanl treatment of crop 
lall:!s. r.~aj' be u:;td on ncn·crop areas, 
SPOT TREATMENT: Use 1 pound of DURHAM DURAPON In 10 gal· 
1,,:1:; 0' water. SPI ay 10 weI fol'age. Retreat as required. 
DRAINAGE DITCHES AND ~L,-!<!!~ 
[Ising a s;lray boum. use 
When 
In a minimum of 40 gallons of water. Repeat application in 
~ to 4 weeks and follow up with spot treatment as required. 
When using olchard·type spray gun, use 10 Ibs. of DURHAM 
DURAPDN in 100 gallons of water and wet foliage thoroughly. 
Spray c.atlJils and Phragmites after new sprouts have emelged 
and are two to three feet fall. In western states, fall spraying 
of cattails during catk," deve:opment is effective. 
SEEDLING GRASSES: For conlrol of giant foxtail and other 
grasses in fRnce row and other non·cropareas, use Sibs. of 
DURH'M DO APON in 50 gallons of water and spray to thor· 
oughly weI. PI iar to heading, The same mixlure can be used 
to spot treat estau!ished grass infestations. 
REPEAT TREATMENTS WITH LOW RATES ON JOHNSONGR~SS 
ArlO !lEO~·I·n'r"~~s: Use 5 to 7 Ibs of DURHAM DUkAPON in 
,;0 to )'J gJllons cf water per acre, On vigorou51y growing 
grass. IllJfe ~ or 3 a~plications ! 0 to 20 days apart. If the 
lanJ IS 10 be pl3nted to a la!e faB or next spring crop, such 
3S cot:on. sorghum and soybeans, tiilage 2 weeks after the 
!Iwd Spl ay I, sug~ested. 
PRE-PLANTING TREATMENTS 
[k~;)1 ie the DURHAM DURAPON in enough water for good spray 
:c,elage. 
"'lolher 4 to 5 weeks be'o'e planting crops that ale suscrpllble 
to OU~HAM DURAPON. If sad is unusually dlY. to avoid crup 
1J11ury a longer wailing pellou will be neeeSSJry 
1 Spring trntment of lobDSAJIIlUS: Use 8 Ib'" "f DURHAM 
DURAPON per aCle to control established Johnso~ ~r"ss on lan:1 
1:> he P,:lIited 10 I,(;IJ Cc,ln, !;o.lton. soybeans 3:HI sOlJ!.!.rum 
:.',l'IV times, lower rates oT~ to 7 Ibs. of DURHAM DURAPON 
PCI acre Will provide control. Spray when gra~s is 8 10 '2 Incl'"". 
12'1 Jnd I~ growing well. After a 3 day Inlerv.1 the land InJ'j ~, 
~Iowed, One or more ulskinis olior to plan!"lg i·, 'cc'J,nnrer'Jed 
Cotton planting can be done immediately after Q"kln:'.s CGrn 
and Soybeans wait at least 5 days: S,rlilum W.1lt al If?S! 2'1 
we['k~: alter plowdown or deep tillage before pl1ntlr.~ splJ'led 
JleaS, If 5011 is unusually dry. to 4~01d (frp ",.C,'" a I'.nger 
period will be necessary. 
SUGAR CANE: Use 5 to 10 Ibs. of DURHAM DURAPON per acre 
(overall coverage) as a pre-emergellce or post·emergence ap· 
plicat!on to control such grasses as alexander. Bermuda and 
JWllISon, In b,'nk or drill applicalion use proportionately less 
DURHAM DURAPDN per acre. Post·emergence: Use a directed 
spray designed to wet the grasses thoroughly and keep spray 
off sugar cane foliage. 
ASURAGUS: Control of Bermuda&rass, Apply 20 Ibs. DUll HAM 
DmrKPIIff per acre eitherliefOi'e or after the cutting season 
and a 2nd spray of 10 Ibs. per acre of DURHAM DURA'ON as 
needed. To spot spray patches of grass, apply 1 Ibs. of OUR· 
HAM DURAPDN in 10 gallons of water. Control of quackgrass: 
apply 10 Ibs. of DURHAM DURAPDN per acre befole comng and 
again 3 to 4 weeks later as needed. For single tre3tment apply 
70 Ibs. of DURHAM DURAPDN per acre either before or after 
cutting season. NOTE: During the cutting season spray immed· 
ia':ely after cutting, Later sprays should be directed under the 
iern growth, 
CITRUS: (Grapefruit. Urnes, Oranges and Taf\&erinesl Apply 2 to 
4 pounds of DURHAM DURAPDN in 50 to 10"0 gallons of water 
per acre as a broadcast directed spray close to the grove 1I00r. 
For spot treatment apply at the same rate per acre using I 
pound of DURHAM DURAPON in 20 gallons of water and spray 
to wet the grass without runoff. Initial application should be 
made when grass is growing well but before seed head form", 
tion. 
C21ilornia and Arizona: Only spot spraying is recommended. 
Cover no more Ihan half the root zone area. Make up to ~ ap· 
plications per seascn at 4 to 8 week intelvals. In Flo· ida and 
Texas make up to 3 applicati~ns per season if needed at ? to 
10 day intervals using broadcast directed spray. 
CAUTION: On very light soil use only the lower latcs !i;~e,1 
Do not use near newly transplanted citrus trees less Ihan <1 
yea,s old. Do not use in groves which are under strhs, UI' 
L fall treatment to conlrol qU3c.k.irass: Use 15 Ibs. of OUR· seased. In decline, or sullcrlllg from cold storage. Do nol <;~'"y 
HAM DURAPON per aCle on land tl,aT Vim be used the following ba'e S011 "'1der Citrus trees. ~eep splay off cItrus foliage and 
,J' ."',; II] Ida"! ,;,:', :ClOP', .1> kiUls. field corn and l1Q1q1PC'· frUIt. Do not graze livestock on treated areas, Grov~llJWll;s 
::~ ,e .t", IS dl' b,: made du:;ng September or Odober and and Non Greve altas: Apoly 5 to 10 Ibs. of DURHAM DUR~PON 
,il.c ::1 ',0'1:" al£:3s. b~t Qur'?la:,s ~hould UC glowing well pel acre ll>!ng Sibs. of DURHAM DURAPDN pcr 100 gallon~ L' 
,,":'1 Ire 1:','1. lrCrlt(:d arel. can be plow~d u"wn in 10 to 20 water. Splay 10 wei t~e fo;iage uni'ormly. Make t'NO appllea 
,~J" ~r pfo",~s :aq be po',tponed until spring. With some t;OI1S t'NO w~e~s apa1t to con'rol grasses and cattails, 
.',1 ,hi, 'I"'~ u,,:<;, b"lIer conlrols Will be obtaliled if the sod :'pnly DURHAM DURAPON 1I';en ,;''',\", :"e ?:r.SI"c '".1'>"",'" 
~~t befcle seed slalks ~E'II';I'P Sp"f hS'"U;;hly :W:! I: l,!c,,;-l, I> 1.",t p:u"ed Jiltl I'll' q~ackerass leglowth IS splayed. CORN: (fiold and Sweet) For ~Jnlrol of green, yellow and gia~t 
S"o'al week: 'cal te 10"",,011 fJI I·.i'"'''''''' ""e ,L Rc;',"at ? rarly Spri!lg tre2tment to quackgras~: lise 8 Ibs, of DUR· ".),oj-l :,ctUiliigS and ll:ua~lealed weeds. use 2 Ibs. of DURHAM 
app';r.at:"n oS ncl' Jed, O. ',J,.': of lilT ,tt1 ""I r::'\I<,la~'l. "n:i HAM DURAPDN per Jcre on lan~ to be planted 4 tu 5 weeks OURAPDN and I,;, lb. of 2,4·0 per a~re of corn to a 14 rnch 
,eeallng grasse, nJoy In,,,,J,, J tre":e~ ,'Cd, Ret,o,t "'.f 1 DU~· '.I:~r L 'lie': vop, a, be]n'. f.e!rJ carll and potatoes. Spray band :n 40 to 42 inch corn rows when corn i, 8 to 20 ir"hes 
HAM DURAPON or wlt:.Jle. If E:;';S 15 r.;)1 ,I :;,"'; :;,:1. I,: ,',,",n [;'oss is .: to G Illsh .. s lilll and gruNi1g well. After tall. Keep spray all corn leaves by using a leaf·llfter C'.lulpreJ 
';';('11, mature vI suffr:lllg Ir~," dr')"","1 01 cold ":~ :liH I, ro. \p'aY"lg. NJII at least 4 d"y; befole ploNing dONn and walt wltil 95 degree even cover~gt flat nozzle tipS. Spray only thp 
~~!t~ "l~f ~~ porir {Ilia! f ';n~lt!r!'; J1fett u~C 01 :lr'Ulr.,"I~e~'~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ State agflwltu:ai aulhOI,lles "' mallJ states i,,",c lecomlrU1lda. 
t:O'1S to fit local conditIO~s. A C r: 
US.A i"'1 ~~. 14):> 499 I WARNING! 
KEEP OUT OF REACH OF CHILDREN 
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oJA ( j 
1,'- t,/, 
NET WEIGHT: POUNDS $'1 AN IDOTE STATEMENT AND OTHER WARNINGS ON THE SIDE PANEL. 
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1 ( I 
I~'s'" hJlf of the r~'n \lllks below the lifted leaves but do not 
" ',:V ill;~hrr !--,'J ; ,n' :'0., "bo'.'e t:w ground. :.p~ly carefully 
,:;,t', em~hJ".') o'~ '.J'a;.d cJlibration, spray pattern widlh, 
',.'<, t of ~p:"V (,n t.f"n and r"le of DURHAM DURAPDN, Besl 
I' ".1; 'I"! a:l~':"I"1 b, ~nraying when glass and weeds are 
" ~:: I :nt a', ta;1 ';S Ii'" LOrn, Use of a rotary hoe soon 
c',' " " UlIl', '>., " ,~ill dl'lJY grass and wee~ growth so that 
i :" ( '" .:e; I,., \.,Hcr than the weeds and grass when spray is 
': ;,'k:! f) 1 'J; l y~p.-t QUI~k kill. but tleated grass and weeds 
:,,:,!l ',::'<11:'! LI rI,e ba,~ and remain in a nOIl·competltlve 
:' I, :1. ii" '" t l,',' L:' l("11 :Iawn for seed May be anpiled 
,I' ',' "-, ",,':1 ;,t :~'ummended lates by dissolving lIURHAM 
Ll'lAPJ:l I., : ":;,!::''; slurry 1'1 Atrallne, A crop oil may also 
I, .. ,;oj,; 1 ;" 1:'e lan~ mix. Consull your Extension Service Weed 
. !J : ~ J~ ~()"'J IC".ommendations. 
~OTTO~j . Si'<iT TRE,',WENT FOR PERENNIAL GRASSES, Usc I lb. 
(I DU1i;Ar,1 OUR~PON rn 10 gallons of waler and splay to wet 
,.11 ,'. :"!";:-;' .Ci"JY altel the grass has developed good 
ell . C', " ".IJ " [,v.vlllg well. Retreat as needed but no more 
t:,cn 3 ap~I,,:atlons per season. Avoid direct contact on cotton 
p!3fJl, a; (olto~ pianls welled with spray are usually injured, 
Con\lol new ~crdirngs by tillage. 
COTT~N . leY·BY SPRAY TO CONTROL ANNUAL GRASSES: Use 
~ !b,. uf W:tP.AM DURAPON in 50 gallons of water per acre. 
~. ;e~ en!::,1 ~'1ri "eta w.th a directed spray that will wet grass 
,\,.;:,~t:t :,(:ti .. ,~ callan. Splay after rasl cullivation when grass 
.\ <J b',l elill ,mall. . 
FRUIT ORCHARDS ~nd GRAPE PLAifTIN'S: To control perennial 
~. ?,~ C s. use DURHAM DURAPON at rates recommended plus 2 to 
,; pInts fA a 1i;;,1Iu~i" wetting agent in 75 to 100 gallons of 
waler p£: :!Cle. See direstions for use'mixing, Apply as a 
C:HC; 'ed :play to orc~ard floor a~ter grasse:; have begun to 
P C.'l "ell in the sp: ir.g and before seed heads form. In all 
(I.:S s;;,cv tJ weI glasses w.thout runoff. Do not disturb 
gr, ",:' ~; I 'JI,I'2 befare spraying. Apply when soil moisture 
i~ 1"5'1. D) not r.:<;c or distulb treated grass eartier than 4 
:;r ~'s afler ~;J:av:n?" Dlseiog after 4 weeks may improve 
C"",!. R"t"'at ;'s required but apply no more than 2 treat­
ments per yeJi 
APPLES and ?EARS: fppll 10 Ibs. of DURHAM DURAPON per 
t'·':'('·1 2~'i' c; "dirlc1cd broadcast spray to grass before 
·\~ae,.,g ~':It, :j .. : SPit lieJlment only on areas where grasses 
;;'~ a vo~'r", \'Ii:', hard or spot treatment, the amount of 
i \!. '. h,' '(' J'eJ !II proportion to the area actually 
Fe It",., '.;,'" efl of C:OD foliage and fruit. Do not apply 
" :' ,,~ ',"" ,! "ll,e<l DJ not graze livestock on treated 
,]:e)s, Do iI'.'! 2p~IJ to apples untess trees are over 4 years old. 
~P~ICOTS. PE~CHES, PLUMS (PRUNES): USE LIMITED TO WESl· 
ER'; STATES GNl Y .r.~;"f G to 7 Ibs, of DURHAM DURAPDN per 
"c": I"~ ;:',;;, b·:',;;e treJdi~? stage as a directed bloadcast 
',',!" .-v, !;·,1·J 'J: ',;cot treJI,,~ent the amount of spray should 
I", :,':',:.'0 :,1 :"v:iO:l,on to the area actually treated, Keep 
.~,r i! c'f 'YJI' '~iia5t and rlull. Do no! apply Within 30 days 01 
'r.I·~'t Do 1'01 ,",lIl, 1;,'~,tJck on treated areas. Make no more 
" n ') .",.' -1' u~'-~ nnr 'CJrcn : ,.L _ .1,', "J.nl ,J IJI )'.J' 
r,r,cliC:~: A?'tAS OTHER THAN WESTERN. Apply 31'2 Ibs. of OUR· 
Il~M DIJ~:\PGtl pd ::':31,,:1 :"ea as a d"e~led bloadcast spray 
!0 p "" I,. 'l re I r:,1':"":: ~,t1:r, For ba~d or spot treatment the 
I" ,;II! (,f '", '" ",;.1 t'e rtJ,r'ed '" proportion to Ihe area 
, .. , , I" : 1,1 lee;, splay (,fi fO!lage and frUIt. Du not apply 
c. "'q 3 ,) I',', ~, I, 'I< ,I Do net CUle livestock on treated 
., "J', ~: J": ',J ::lOle f".\·: ? applrcatlons per season. 
G :I,:'~S p:;,~r'lG CAlIFJRNIA AND ARIZONA ONLY. P.pply 10 
": UUrli. .. :,\ OU~;PON i'·:1 Ill' :ted acre. Apply ;JS a drrected 
broadcast spray on vrne row when gr 
Keep spray off crop foliage and f 
30 days of h.'IV(!,t D9 not graze I 
The amount of s;)(ay should be re 
"'ea actuaJiy Ileated. Splay in band 
.wle. centeled on row, Make first 
wilell new r,rowln of Bermudagrass 
Johns01 GI']" is P to 18 inches t 
latci Do not l!~e i'l yJung ron beari 
into Jrrlgat.O!l hH1CJftS and d(! not 
bJrd Dn not ',P'dY IIlldJle, fren:h 
~,Hdf:llg IS nOI JI:.I>db:e, 
PEAS: To s"~trol scedl.ng RIJ,\es u 
POH per dl'e Aprly ,11 lea<t ?~ ddV~ 
','I, dlln"s arl' i,H,ng Jn~ I"~ pe lS 
I"'I"'! 4 to IJ nodes Do nol "ed tr 
~tock. 
POTATOES. To cvn!lol s, ec:"V Plas 
DURAPON per ace. ApplY be/ore e 
gras~ pla1ts ar;> small. 10 cO',llol Q 
of DURHAM DURAPOH per acre App 
ootatoes emerge. Do not apply OUR 
erne' ge. For sprrn~ pre·plantrng tr 
8 Ibs or DURHAM DURAPDN per aCI 
plaNed and potaloes planted 4 to 5 
glass conMI, use 5 Ibs, of DURHA 
to 25 gallons of water ~pply as a 
vation when grass seeds have gel mi 
seedlings are 3 inches tail Use 
spray on Ihe g' ass up to the bas 
order 10 get minimum of spray on 
use DURHAM DUIiAPON on land plan 
skrnr.ed or Whitp Rose potaloes. 
SUGAR BEETS: For use from emerg 
To control small glass seedli.lgs, U 
DURAPON per acre To control wild 
& to 7 Ibs. of DURHAM DURAPO~ 
d,rected spray. Keep spray oli of 
For use beyond the 6 leaf stage unl' 
tall: Apply 3 to 5 90lmds DURH 
directed spray in enough water to 
grasses. Use lower rate If grasses arc 
Use leaf lifting equipment. Beet top 
livestock. 
FLAX: Apply 1 pound of DURHAM 01 
:JI watel pe' acre to control plgeonj 
giant fo.tdi's. Apply "hen crop is I 
'csults, use when the younR grasl 
') inc~,e) tall and gro,Yrng actively . 
., i I. 
COFFEE. TJ ont'o: c'.:b';'il" Ber~ 
Call~o:nq c'a;s allJ ulher grdss 
HaN;;." ~;e 1 pOJnj DURHAM DURA 
4pply as a l"'l:td ;'lIdl to lust w4 
jo nol e,~,pJ ;00 g)1 ai's of ,pray 
:of'ee fcl13ge rlil'e '''st aprllcat 
,_JOWI!l~ .'e:! b~l! j-f 'Jr to s"'cd head 
tion In ·f to tJ "tt~) [C OJ! 3pply 
Jo 'lot ap~'f 11,\:1,1 8 m01t',s of ha 
IIlACAOAMIA. To ~~~t·o, c· JO,I]SS I 
"\:]rJ C:1.'·o'c.a E J$~ (!d t. £!.:ss, 
:~e rile 01 'i to ;.j 5 ibs per 10 
iLt .... L:t U:t: ~r J::>C; 'l"dt'1::it LJf'.·oH, 
ons per ac!p Ma~e !u:>t d~pll:atit 
:t wte"li> ,i, IPg'ON!!1 Wd'lanl> b 
fUflng h""bt 00 not a~ply dliec 
'lOle than ?~ p'. Uil~S 01 IIURHAM a 
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NOTICE: Durham Chemical Company makes 
no warranty, express or implied, including the 
warranties of merchantability and/or fitness 
for any p:uticular purpo .. , conc.min. this 
material, except those which are contained on 
Durham'. label. 
DURHAM (IIEMlrl 
41 :!4 l. ~ACll 
LOS ANutLES, CALI

: Acid) 85.0·~ 
174. 0 
15.0 "i. 
1 00.0°< 
ODSTUFFS 
• Use only "itt! 
,in dnd clothll1g 
I.cl. flush eyes 
IIId get rr.ecidi 
I and WJ,h ~kln 
e. 
germination and 
dosage applied. 
ure and lainfall. 
I crops such as 
It least 30 days 
APON. Oecompo· 
apidly in warm, 
position may be 
plowing belo; e 
ility of residues 
IPimals on vege· 
IONS 
IG. 
commended pur· 
ERDOSE.) 
sed for dome;tlc 
• not allow Spi Jy 
• contact foJ,age 
other desirable 
later immediately 
rays or pQSslble 
~mbination spr ay 
'ectlOns and p.e· 
IE BAG TIGHTlY 
'Ptainers. Destroy 
ed to conirol all 
Itergra;s and cs· 
IS, Bermuda.;""s. 
grass. DURHAM 
, although it may 
M DURAPON may 
~ as Mep Amine 
.' 
DURHAM DURAPON GRASS KILLER 
DIRECTIONS FOR USE 
MIXtNG: S~lay tank should be at least half full of water before 
JOdl!!g DURHAM OURAPON. Add DURHAM DURAPON slowly and 
:tll to dlssol~e it completely. Use enough water (JO to 40 gal· 
:ens p~' a:'" 1M good spray covelaee. DURHAM DURAPON can· 
t,I'n, :, ·".'·tt;ng agent wh,ch is .1deQuate fer Il'any Uscs. but 
: •. !'.'1J:·V ~t:rnnral g'?sseo; th~t are difficult tu wet, or when 
!ew r.,les· of DURHAM DURAPON are used. particularly in highly 
(~:lItel splays. the use of a non·ionic wetting agent, ~uch as 
11.11 Js~rCJd 8 or Aleo All Purpose Wetting Agent. at recom· 
=,'c!1Jed raies, may be helpful in obtaining maximum control. 
COMBINATION SPRAYS: In sprays that contain 2,4·0 do not use 
nlQre than 8 ibs. of DURHAM DURAPON in 10 gallons of water. 
Mix DURHAM DURAPON and water first, then add 2,4·0. 
AIRPLANE APPLICATION: Use suggested rates 01 DURHAM DURA· 
PON in 5 to 10 ea!lons of water lor preplant treatment of crop 
lands. May be used on non·crop areas. 
SPOT TREATMENT: Use 1 pound of DURHAM DURAPON In 10 gal· 
Icns o~ water. Spray to wet foliage. Retreat as required. 
DRAINAIIE DITCHES AND Whtn 
lISlng a spray Doom. use 
10 a minimum of 40 gallons of water. application in 
2 to 4 weeks and follow up with spot treatment as required. 
When using orchard·type spray gun, use 10 Ibs. 01 DURHAM 
DURAPON in 100 gallons of water and wet loliage thoroughly. 
Spray cattails and Phr.agrnites after new sprouts have emerged 
and are two to three feerrall. In western states, fall spraying 
of cattails during catkin deve:opment is effective. 
SEEDLING GRASSES: For control of ,,&iant foxtail and other 
grasses in fAnce ~ow and other non·cropafeas. use 5 Ibs. of 
DURHAM DO APO in 50 gallons of water and spray to thor· 
oughly wet. prior to heading. The same mixture can be used 
to spot treat established grass infestations. 
REPEAT TREATMENTS WITH LOW RATES ON JOHNSONGR~SS 
AND BEIl"'I.'~ ··r."~SS: Use 5 to 7 Ibs. of DURHAM DUkAPON in 
40 to 5U gallons of water pt' acre. On vigorously growing 
grass. ma'e 2 or 3 applications 10 to 20 days apart. If the 
land IS to be planted to a late f JII or next spring crop, such 
as colton. sorghum and soybear.s, tillage 2 weeks after the 
third spray is suggested. 
PRE-PLANTING TREATMENTS 
Dissolve the DURHAM DURAPON in enough water for good spray 
ccmage. 
Q~other 4 to 5 WEeks be/o'e planting crops that ~re susceptible 
to DURHAM DURAPDN. If snll is unusually dry. to avoid crop 
injury a longer waiting peflod will be neceSSJry. 
3. Sprin2 trtltme~t 01 JahD$a"lrau: Use 8 Ibs. of DURHAM 
OURAPON per acre to control est~blished Jahnson"1 ass on land 
10 he pl~nted 10 field COl n. ~ojton, soybe~ns Jnd SQl~hum. 
:,'.l"y times. lower r ;;teS on to 7 Ibs. of DURHAM OIJllAPDN 
per acre will provide control. Spray when grass IS 8 to 12 inches 
tall and IS growing well. After a 3 day interval the land may be 
nlowed. One or n',ore diskings prior to planting is recommended 
Cotton planting can be done immediately after diskings. Corn 
and Soybeans wait at least 5 days: Serlhull wait at least 2~'2 
week,; a!ter plowdown or deep tillage before planting sprayed 
Jreas. If soil is unusually dry, to avoid crop injury. a longer 
period will be necessary. 
, SUGAR CANE: Use 5 to 10 Ibs. 01 DURHAM DURAPON per acre 
(overall coverage) as a pre·emergence or post·emergence ap· 
pli;:Jtion to control such grasses as alexander, Qermuda and 
Jww.~. In b?nk or drill application use proportronalely less 
DllRHAM OURAPON per acre. Post·emergence: Use a directed 
spray designed to wet the grasses thoroughly and keep spray 
off sugar cane foliage . 
CMtrol of Bermuda&rass. Apply 20 Ibs. DURHAM 
per acre eitheTDeTore or after the cutting season 
and a spray of 10 Ibs. per acre of DURHAM DURAPON as 
needed. To spot spray patches 01 grass, apply 1 Ibs. of OUR· 
HAM DURAPON in 10 gallons of water. Control of quackgrass: 
apply 10 Ibs. of DURHAM DURAPON per acre before clllTlllRaritl 
again 3 to 4 weeks later as needed. For single treatment apply 
20 Ibs. of DURHAM DURAPON per acre either before or after 
cutting season. NOTE: Durin!! the cutting season spray immed· 
iately after cutting. Later sprays should be directed under the 
lern growth. 
CITRUS: (Gr~fruit. Urnes. Oranles and Tan&eriJ1es) Apply 2 to 
4 pounds oT DIfRHAM DURAPDN III 50 to 100 gallons of water 
per acre as a broadcast directed spray close to the grove floor. 
For spot treatment apply at the same rate per acre using 1 
pound of DURHAM DURAPON in 20 gallons of water and spray 
to wet the grass without runoff. Initial application should be 
made when grass is growing well but belore seed head forma· 
tion. 
C21ifornia and Arizona: Only spot spraying is recommended. 
Cover no more than half the root zone area. Make up to 3 ap· 
plications per season at 4 to 8 week intervals. In Florida and 
Texas m3ke UP to 3 applications per season if needed at 2 to 
10 day intervalS using broadcast directed spray. 
CAUTION: On very light soil use only the lower rates listed 
Do not use near newly transplanted citrus trees less than 4 
years old. Do not use in groves which are under stress. di· 
:. Fall treatment to control ~ua~kfrass: Use 15 Ibs. of OUR· seased in decline. or suffering from cold storage. Do not spray 
HAM OURAPON per acre on Ian t a Vim be used the following bare SOil under citrus trees. ~eep spray off citrus foliage and 
:,,·.1?, '0 pl.nt S,,:'l crops as IDns. fieldSQLn and potatoes. fruit. Do not graze livestock on treated a'cas. GrQy~ ditches 
~;,~I:C.ltlO:1S :an be m2de du:ing Scptemoer or October and and Non·Grove areas: Apply 5 to 10 Ibs. of DURHA~ DURAPON 
la:c' :'1 some areas. bJt qU.1~~grass should be growing well per acre uSing 5 Ibs. of DURHAM OURAPON per 100 gallons cf 
.... ,e1 ire"!~d Tleated aICJ', can be pi owed dewn in 10 to 20 water. Spray to wet the foliage uni'ormly. Make two applica· 
Gays or ploNmg can be postponed until spring. With some t' t k ttl I d Hails r'iabi',.11Cd sods. better controls will be .)btained if the sad IOns wo wee S apar 0 con ro grasses an ca - . 
~owing v.f0 : OJS;y 0 
~Iy and unlfeeml)'. IS f,'s! plowed and the quackgrass regrowth is sprayed. CORN: (field and Sweet) For control of green. yellow and giant 
m e'fe~t. RC;Jeat "~arly Spring treatment to quacka;rass: Use 8 Ibs. of OUR· i""J.1 seedlillgs and broadlealed weeds. use 2 Ibs. of DURHAM 
I persistan:e, rc,v HAM DURAPON per acre on land to be planted 4 to 5 weeks OURAPDN and ~l lb. 01 2,4·0 per acre of corn to a 14 inch 
Retreat with OUR· 1,1:~r te cUS!1 cops as beans. field corn and potatoes. Spray band in 40 to 42 ipch corn rows when corn is 8 to 20 inches 
growing ·,·;cll. ie when grass IS ., to 6 lO:hes tall and growing well. After tal'. Keep spray off corn leaves by using a leal·lifter equippej 
cold weathcr. reo ,praying. wait at least 4 days before plowing down and wait with 95 degree even coverage flat nozzle tips. Spray only the 
Ise of he'blcl.~d&.e';;" ____ """,r=====""" __ "''-------------------------''---------------Ssue recomme, 
ACCr::-r;:TED ~... ~.. 
Nco 1422· 99 '. 
I 
>UNDS ! /J) ( ; , 
'II t'I' c· 
I, .... 
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f'/ / 
. $_- ~N 
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WARNING! 
KEEP OUT OF REACH OF CHILDREN 
IDOTE STATEMENT AND OTHER WARNINGS ON THE SIDE PANEL. 
f" \ I 'I ' 
law~r half of the ro'n st,lks below the lifted leaves but do not 
..•• ,v hi~hrr h::n 7 In:res ;rbo"e the ground. Ap~ly carefut:y 
\·:,t'l enrpha,:, 011 . lJ:aYcr eJllbration, spray pattern widtn. 
h·!ip.::t of sp: ay on COl nand r2te of DURHAM DURAPON. Best 
h"ulh nlc obtni lCU by spraying when gra~s and weeds are 
,'q II n~:1 not as tad 3S the corn. Use of a rotary hoe soon 
J'tt' I.'" n (;lIIe.~c!I,",vill dllay grass and weed growth so that 
I 'r c"", .,':';: ~e t .. ller tha~ the weeds and grass when spray is 
:: "'I:'lI n.) "Qt l,~ect quick kill. but treated grass and weeds 
.... :i h: '.llIn1,'.1 or d:" bas~ and remai .. in a non·competitive 
:::',10 n. II.) cr,t liSt G,l cern ,'rown for seed May be applied 
: • .1'1 /I: ,me 30\'1 ·11 rO"ommended rates by dissolving DURHAM 
[1:I~APJN 1:"'1 ~l. :.'g slurry uf Alrazine. A crop oit may also 
~:! ,~dd~.1 ,0 Ine lank mix. Consult your Extension Service Weed 
:;.)oCl,1.:· t for 10:'_1 le·:ommendations. 
COTTON· SPOT TREAHl.ENT lOR PERENNIAL GRASSES: Use 1 lb. 
et DURi1AM DURAPON In 10 gallons of water and spray to wet 
,,:1 ~rJ:·. :':'J~';. Spray after the grass has developed good 
eil"g~ J.1d :, gru'NlOg well. Retreat as needed but no more 
tl,an 3 applrcal10ns per season. Avoid direct contact on cotton 
plants as cotton plants wetted with spray are usually injured. 
Control new seediings by tillage. 
COTTON . LAY· BY SPRAY TO CONTROL ANNUAL GRASSES: Use 
5 Ibs. of DURHAM DURAPON in 50 gallons of water per acre. 
Guver entire sail ~,el with a directed spray that will wet grass 
',d:,cuf .\etli:1g cotton. Spray after last cultivation when grass 
·s u~ but still small. -
FRUIT ORCHARDS and IIRAPE PLANTINIIS: To control perennial 
~rJS;es, use DURHAM DURAPON at rates recommended plus 2 to 
.: pints of a non· ionic wetting agent in 75 to 100 gallons of 
water per acr. See directions for use·mixing. Apply as a 
dlfec!ed :,pray to orchard floor after grasses have begun to 
g:ON well in the spr ing and before seed heads lorm. In all 
n:cs Spl ay to wet gr asses without runoff. Do not disturb 
gr"ssts hy mO·lIi.1?, before spraying. Apply when soil moisture 
is high. Do not disc or disturb treated grass earlier than 4 
wce~s after spraying. Discing after 4 weeks may improve 
co"t'ol. Retreat as requi:ed but apply no more than 2 treat· 
ments per year. 
APPLES and rEARS: /.ppiy 10 Ibs. of D:JRHAM DURAPON per 
tre,led cSI e as a directed broadcast spray to grass before 
l:caGing si",e. Use spat trCJtment only on areas where grasses 
a:e a p'ob!em. With band or spot treatment. the amount of 
<~' 'y sha'Jld bc reduced in proportion to the area actually 
! 'elted. Y.';ep spray off of crop foliage and fruit Do not apply 
IIlthlr. Je, (:ajs of harvest. Do not graze livestock on treated 
areas. Do not apply to apples unless trees are over 4 years old. 
APnlCOTS, PE.\CHES. PLUMS (PRUNES): USE LIMITED TO WEST· 
ER~ STAHS ONLY. Appty 6 to 7 Ibs. of DURHAM DURAPON per 
aClc lu g:ass before heading stage as a directed broadcast 
'~'ay. FOI bl1d or spa I treatment the amount of spray should 
be redlJced In p'cportlOn to the area actually treated. Keep 
,;;ray off crop !oirage and frwt. Do not apply wi'~in 30 days of 
II 1, vest. Do not g'aze t:vest~ck on lreated areas. Make no more 
r'.ln 2 JP~lr.:atiolls per season. 
PEACIiES: AREAS OTHER THA~ WESTERN. Apply 311 Ibs. of OUR· 
HAM DU~APGN pcr treated Jrea as a drrected broadcast spray 
Ie) £ :"S I,":orc I:ea'I'''3 sta?e. For band or spot treatment the 
l' ~')1II1t 0: '.:" .,./ <i:",,:d be reduced In proportion to the area 
',.'. 'v h2:tJ. r"ep sp:ay ull fOliage and fruli. Do not apply 
.. ",,,·n 3'J d~ys af ;1."'1.0. Do not graze livestock on treated 
a eJ',. ',:J"~ 119 more tl1.l:; 2 applications per season. 
GilArr~ . 8:~~1,(:;: CALlFJRNtA AND ARIZONA ONLY. Apply 10 
'" of [JURi,:,;" OIJIl~PON rer treated acre. Apply as a dlfected 
NOTICE: Durham Chemical Company make. 
no warranty, express or implied, including the 
warranties of merchantability and/or fitness 
for any particular purpose, concerninl this 
material, except those which are contained on 
Durham'. label. 
broadcast sprJy on vine row when grasses are activel) growing. 
Keep spray Gtt crop foliage and frUit Do not apply within 
30 days of h.1fvest 00 i~ot graze livestock on treated areas. 
The amount of spray should be reduced in proportron to the 
a'el actually treated. Spr~y in bands not exceedrn~ 30 rn"he, 
wide. centered on row. Make first application in lale ,p: Ing 
when new growth of Bermud~grass 1\ ., te 6 Inshes tall. or 
Johnson Grass is 1:> to 18 inches t3:1 Re s~ray 4 to (, NCC" 
later. Do not use In yuung ron bearlnr ~:neYdl!' Do not 5prJy 
IOta irrigatIOn furro .... s .1nd do nl,t tiood or sp'I'lkle tleatt:1 
band. Do not spray middles. Fren~h pln."ngK!!by P'OW, befo'e 
9raying 15 not advisable. 
PEAS: To control seedling grasses u,e 1 ill of DURHAM DURA· 
PON per acre. Apply at lelst 75 days befol e hal ye, I whl'n ~I."< 
seedlings are young and the pCJS d'C ? to {) ,n h·s t"11 .1'l'J 
have 4 to 6 nodes. Do not feed treated pe· Vd' O "ai I" IV:' 
stock. 
POTATOES: To control seedling ?rasse,. "5" , .:'<; cf DURHAM 
DURAPON per acre. Apply before emer en;. uf poloto", ,,"e:1 
grass plants are smaiL To co~trol Qua:kg'ass. lJ.'P L~ to 10 Ib,. 
of DURHAM DURAPON per acre. Apply after planting but before 
potatoes emerge. Do not apply IIURHAM DURAPON after potatoes 
eme'ge. For sprins pre·planting treatment of quackgrass. use 
8 Ibs. of DURHAM DURAPON per acre. After 4 days land can be 
plowed and potatoes planted 4 to 5 weeks later. For late season 
grass control. use 5 Ibs. of DURHAM DURAPON per acre in 15 
to 25 gallons of water. Apply as a directed spray at last culti· 
vation when grass seeds have ger minated but befo'e the grass 
seedlings are 3 inches tall. Use vine lifters and a dil ected 
spray on the grass up to the base of the potatoe plants in 
order to get minimum of spr ay on the potatoe fOliage Do nrt 
use DURHAM DURAPON on land planted or to be planted to red 
skinned or White Rose potatoes. 
SUGAR BEETS: For use from emergence throug , 6 :eaf slage 
To control small grass seedlings. use 3 to 4 Ibs. of DURHAM 
DUP.APON per ~cre. To control wild oat, and quac.g:a" use 
6 to 7 Ibs. of DURHAM DURAPON pe' a~re and a~p!y as ~ 
directed spray. Keep spray off of cro~ leaves 
For use beyond the 6 lea! stage until ~eets are about 14 .n:hts 
tall: Apply 3 to 5 pounds DURHAM OURAPON per a~:e as a 
directed spray in enough water to wet follag~ to contr81 anm))1 
grasses. Use lower rate If grasses are sl"al: ., gro",~g a~I've!y 
Use leaf lifting equipment Beet tops U' ·ots mal be fec to 
livestock. 
FLAX: Apply 1 pound of DURHAM DURAPON ,n :, to iO g~lIon, 
of water per acre to control plgeongrals o' g·ee" .. yerlJw and 
giant foxtails. Apply when crop is i to 6 10: :es tal: For be'l 
results, use .... hen the young grass Sred""6' a:e If '.5 tt,)" 
2 inches tall anu groNlng actively. Do n:1 e'pc:t :J~ .. ~ ;;'a,s 
kill. 
COFFEE: To COlltrol crJbgrass, Be:mudag'ass ~"Uyob·l<'. p ,ra 
Calrfornra) grass and other grasses In e,t~Dllshed coffee ,n 
iiaN'lii, use 1 pound DURHAM DURAPON in 10 gallons of watr'. 
Apply as a directed sprdy to just wet g'ass wrl'lOut run·olf but 
jo nol exceeti 100 g.:lIons of spray ml> pee a~:e. Do not sprJ) 
;oflee foliage. Ma~e fllst application tt; g' 's~es which .n 
,rowing wcll but p"or to seed he:Jd f8r:nl~'J" Repeat iJ~;' '. J 
tlon in 4 to 6 weeks. Do not apply more tI,an tWI~e per ,0.1' 
ilo not apply with,n 8 months of hal vest. 
MACADAMIA: To contol crabgrass. Ber:nJJJgra;s. ~"l,lIYJ g • .1<' 
1,1:.1 :Cai:'ornla; P'lSS dadl> grass. u~e DURH~M DURAPON at 
the rate of ~12 to 1·1i 5 Ibs. per 10 gallons of water Splay 10 
;ust wet thc grass without run·off. bul nut to e'cped lUJ ;Y 
ons per aCle. Make lirst appll~atlon befo:e halves!. Re S::r,lj 
.It intelvals as regrowth wallants but only after gleaning nl.:' 
1urrng harves\' Do not apply directly to nuts. Do not a:',':y 
'liorc than 24 puunds of DURHAM DURAPON OPI acre pe' yur. 
DURHAM ( .. EMir AL (OMPANY 
41:!4 l. ~AC!t=!C .,.'AY 
LOS ANCi':LES, CALIfOWI'IIA 90023