# THOR BRAND MALEIC HYDRAZIDE - EPA Reg No: **5905-380** - Registrant: HELENA AGRI-ENTERPRISES, LLC, D/B/A HELENA CHEMICAL COMP - Signal word: Caution - Active ingredients: 1,2-Dihydro-3,6-pyridazinedione, diethanolamine salt (58%) - Label accepted: 1967-07-10 - Source PDF: https://www3.epa.gov/pesticides/chem_search/ppls/005905-00380-19670710.pdf --- I .: " '" ' . . ,..", . • .... . l 3. :" > (, ~ • ) .,j. #to -9- ~ )2 r . i ..... . "- E.- I r F c - c = ~:o e _. ,~, .: .~.~ . - -._---.1 ~o contrQ.!. sprouting. 0' "!lionS in storage.: Appl.,.. 5~ .5 '10:5 - pints THOR BRAND MALEIC HYDRAZIDE in 1,)0-150 gallons of water per ~() acre ~ith a ground sprayer. Air~lane applicatjon can also be made. The spray should be a?plied ,,,hen the blJlbs are • 4______ _ • soft enough for the tops to fall if they have not aTreidy done so. The spray is often applied when 50 percent of the tops rave fallen but all tops are '3till :S"reen. n.is condit~on usually occ"J.rs about two weeks to 10 days before harveo;t thr..e. Greea tops ore e<:;se"!"\"":;ial for the ahsorption o~ T:iOR ~RA~;D MALf:IC EYDRAt:IDE • CAT'TICJN: Av:dd -:~'J e'1rly s!rrayin;::-!if edible onions. Spcngy h1l1bs m:gr.t rns,~lt if SP!''3.1ing is done earlier than t-.m '.':'-.;-K~ be;"c!"2 ,-:aturi ty. 1'0 ~~ntrcl ~rrouting of potatoes ~n storage: Apply 1 gal- l TTT'"C ')-'''', ~""~-I" U"V1'RA~IDE i 30 1 50 11 f on .-In. ::J.ir.l'jL' Ji:\L .. ~ ,,1.1.) u ) n -._ ?3 :,p.s a W:=iter per a-:~e by ~rmlnd B'1"Jipme:l.t. i''.lrplane anpl11~at~(:!~ -:3.r, be made in irrir3.tp;~ se~~~r:i.s sf the ccuntry. Check y~ur fiel~ to see if 1~u t~ve a good set of pcta- t ''':1'IQ ··!l··-D~~'!'''IC '"7DP'-'''''E i 1',.:l· f h ces. L[1.d :) .. ".:1 l,f\.I.IL', ~', .. h, 1:)' c.:; ::lf1D le. -",reJ". must 0 t e tubers ~~t ar~' ':'l~':'r(lx"~"rn~-;tel'T or,e 'inch in ':~amet3r. Th,ls occurs I.:hen 1:;h~ [n',; lo',,'~!" l'·;-'v:'~ C;~C' ... • ii lel1,_;'..; color. In :1rp~s '..;here :::,ot,l"-,lP"" ~·lO'.,,'eL "r,:~'::Jr:i'1'! this -1.s Ln~ ',,'eek af~,--,r b1n<;- to :3 _To _r-.on_trpl '.JiLl or.: on'j don,} .. :i 1d icU 1 i.e !n lawns an~; ~l'ass _areas :1 Li~'[lg j1 i ~h",,~ys (rIot Fl~~t:llr;' or croJ2 l~nd): !~pply 1 t:J 2 l3all~' rmlR f'RAN!J "fit!!l~-lfi'DRA~IDE -in 20 to 100 ~al1on"3 of water l\~'r '1er e , ~r. ";::lI"lLr: ~.r fall wrlcn a'mrt YO-fj':': p~rcent of the b1l1(l'3 ~l,i·.e "t-,~tr,-j rer1rc'"rt~l. 'T ee rln la··....,~ "'nir ,'. OJ' 'fr ) __ r- 1"- hr,.... .... Fo I) ). \. ,W.L~'" J. '. .... ... ~ L S '. -.. ~ - oJ UWA' and ncrYT','tnt. THOR ~lRAND MALFIC HYORn.21DE , a plant 1 nhi h 1 tor, IJffer~ method of controlling sucker growt.h by k,,=eping suckers from tban by kill1ng th... S1Me THOR BRAID MALEIC HYDRAZIDE a new growing rathf!r 1s J .. ... - ._. .. _ .... -. .. , ....,(r::!'~!"':IgMEa"rJ ---- .. ., '-'"~ ---~ -~- ~~ - _. --- ........... -_. . .... ~ -----* -- HeN to spray: THOR BRAN'D MALEIC HYDRAZIDE may b~ <3?plied with either trac~or or mule-dr~·Nr. in~ecticide sprayer. or ~ith a compressed air shml1Jer ';t~raypr. a. Tr3c-: sr c!' ~'.l12-drawn inse,:-t i" ide c;prayers. .A'l-'f b. 'on L" n l lot: "'-y he " ... ,.~ n, a'" he ::;~1~1~' ,1 !n n 1L"T". ~) -c- !' (11 G' . "l. _ -' hl'""l. I.. ..... ~ -4 • ~ l \..... --0. ~... _ -" ~ the ~ame manner as insecticide, spraying one or more rCT..,TS at a t:me, wetting -lpper 1/2 to ]/3 o~ plant. Compressed air shoulder sprayer with single nozzle spraying a wide cone. Spray one side of each tobacco row while walking at a constant rate. Use u, and down motion of spray nozzle to moisten upper 6 to 8 leaves of each plant. Apply equal amounts of spray to ~ach plant. us ::az:a::zs. _s.zs:azs == __ = __ 22:!L , .0>4 L ... _ .oS :aux... e ____ Lt. d.t _ £. as::::_ , '- -. Amount· ttt 1lS~! 1 1"int 'mOR·BRMfDM*Lf:lC HtfJRA?IDE Exaaple: Use 3 quarts THOR BRAND MALEIC HYDRAZIDE acre. or 1 gallon THOR BRAND MALEIC HYDRAZIDE for acre. Cse not less than 20 gallons of wa~er per acre gallons of water per acre can be used -- see note g). for 6.000 plants per 8.000 plants per t'J01. (from 20 to 50 .It U -l!Lcont:.:o.l quackgr3.ss: Aprly 1 1/3 gallons THJR :mA~;L! I"'.AUIC HYDRAZIDE iT. 20 ., 100 ~3.l1ons of ·.rater per acre in spring "oN'hpn grass is 4 - 10 inches tall. Four to eight days ~fter 'pr:'lyh-,g pl:JW th,= sad, rote>til, r:p8de. or in some manner turn un:.1er the squakgr,ss leaf ~rovth. Prepare the :Jl'J'...r~d seil by discing, harrowin~, etc. The following ~rops c;n ~e im­ mediately p;ant;eJ.: Field and swep.t corn" 2-0~atoec;, Toma­ toes. gre~n -}ry and 1 ima 5~~n 3. peas, rcrl and s'.l~'ir --­ beets. (Se~ note 12.) 'tQ.inhibit runn~r zr;Jvtr~ in stJring-'~'H:arlng stra· . .;\."::rr~ in ~ttedrows; Add 1 C;'.l;:trt THOR BRAND fl,.ALFIC HY::JRA~IDF. gallons of ~ater per acre, t~~n thoro~ghly spray follag9 to of run-off w!:<'?n plants r':'ach desir."d densjty (',:·c.',.lt 4 to 6 plants per ssuare fo~t). Mas+. effect!ve re- sults ar~ obtained 8P varlet5es such a~ ?la~e~Gre. Dunlap, Robinson. Tpnr.essee ~eauty, and Poc~hr;n~~s th3.t '.;ontinue nro~ucing run .. .,.ers l;:;tE' in r,ru'"ing S"'-3.- son. Do f'.'Jt '-pray aft~r Sert"mber 15 in rr.tddle Ai;hntic states area. Do not use on everbearing variet1es or in spring w~en b~rries lre prese~t. (See n!1t~ ]~.) For induc ing dormancy in young non-baarinA cJ~ru~: t~:.s to 100 point rooted - ---_... - ---ln1"lorldii-:- THOR BAAND MALEIC HYDRA?IDE by in~uc in~ dormancy ~frer-;;Protection a~ainst frost damage do1,.ffi to 21 0 F' in recent experi- ments. Add two quartc:; THfJR BRAND MALEIC HYDRAZIDE to 100 gallons water and spray with coarse cone nozzle between Noverr.ber 1 - 15 • ....... ________ '-- __ ~ '" .a..1L ____ '---'" • • . - -. t) / .& , in 20 - 100 Fallons of vater per acre 1n spring when grass 15 4 - 10 inches tall. Four to eight days after <.:pr8yi.ng plow th~ <:;o~, rotC"l1:;i.l, '":p3.de, or in sam"? manner t~rn 1mder the ~quakgr'''}r::3 lea~ (rowth. Pref,afe the :J1'Jw'O';! s,~ il '2y ~i::;ci]"ll£, h:HrT""in(f, etc. The foJlm.'inp CfODS C',:l r. o ~M­ rr.~~iat'·ly 1':'1,,>::,;: ~'i,::J. ""1.1 s",~,;'t corn .. llot3tc"<', 7t1 ma­ toes I ~r r.~'~: ry 3nr1 ... l .... ~-:::m:-:.3.:---tS~, .. ::..".~~:,-:,~,--:::-,'.--,-:-]-:s-. --r e '1 a rtf': c, ~";-i-r-' .-~ be€t o. (-::,r.p r.ote 12.) tQ, inhibit runn~r growt,h in spring-~~aring stra'..i":::tri~ i~ J!latted rgwy Add 1 quart THOR 3P.AND MALEIC HYDRA::IDE gallons of '.rater per acre, then thoroughly spray foliage to of run-off when plants reach desired de.sity (ahout 4 to 6 plants per square foot). Most effective re- sults are ohtained on varieties such as Blakemore, DunlaF, Robinson, Tennessee 3eauty, and Pocahontas that cantinu~ I1roducing runners 18.te in grm.;ing sea- 'son. Donot-"-:-'pray'-after"S'ept'emlier"'IS-Tn-mrcrdTe"AtlantIe· -- . states ar~a. Do not use on everbearjng varietj~s or :'n spring w:'en berries are present. (See note 12.) to 100 point rooted For inducing_.~,?~manc1 in young non-baarinA cJ.J;rus !te~s in -rlOrlaa-: THQR BIVI.NI' MALEIC HYDRA7IDE by 1nducin~ dormancy offersp~otect i en alp i.nst fr :')<;t damage dm-n to 21 0 P in recent experi- ments. Add t"lO r:;ua=-ts TH'JR BRAN!) MALEIC HYDRAZIDE to 11J0 ~al1ons w3ter and spray ~ith coar~e cone nozzle het~een N07ernber 1 - 15. The srray ShI)1J:-:l t~crou;1hll ....... et u;,per an~ lo ....... er le8.f sur:aces, branche,; ;In:~ t'Y"unks of tre"".,. ;.. sec Jnd tr'?'it- ment may ~e nec~ssary in 6 tJ 9 weeks if unu~ually \l8.rm '~Je 3.t:'er ~~rs i sts :1udn~ 0i ovembe r and Dec e!"\ber. (No more than t~'o spr 3YS 3.rf? H8ctJssary t:er season.) ?eriodlc3.11y chet::k for t>u~-;.,el1 "",'hich incic~tpc:; to":t regrowth is or.c:urrin€ ;.r,:1 r8s"Jray is c::;well in~ of :--'Uc1S occurs. Do ret sp1,oay trc'€'s ' .. :ithin the rear in , ... hich fruit tc b~ h3rve~t~~ is set. 5p~~y cltru~ tr~es at least 24 hours beforp r8 in. flain occurrino:- ,.;lth~n 2~ ~'1u!'s 1ft~r a;>plic~tic1rt ,,:i11 rr.r'!'Jce ~ffer+;iv'mt~sc::. TH:JR 9PJ,ND }!hL:'!2 Hn1RA?IDE-s:-,rayed citrus trees r3Y <:;:--1'.. a r1€::lay o;~ r,:,~rm.rth in sprin€, fnr c::;~v~r31 weeks if the '...Tint-::r r"m:~:n-' colc1. ThE. first ne.., f!Towth of foliage may be r;llghtly "PrRnch'=:>r1." or :1ar:·ni.l-·~eaf~d. hIlt '~Jb'~'->("A~"':, gr .. :;wt,h \ori 11 b~ nQrrr,~ ~ • -------- Important Notice: Since the uo:;e of th10s nroduct is he­ yond the ('antral G~- th'! 'lellel'. The Buyer Z~C;S1llnes all risks of u~e Dr h;wdling • ...,h:!thcr in dccardancf. 'With ~irc:'ctionc; or nc~t, ::is the ''iell-=Y' omak~s no ' .. 'arranty, PTpr!ssed or tm­ plied" ~uflc.;"!'Tdw; -chis;)rod';lct. --- ------ ----------------- SHAKZ wELL HFFJR:~ tT'; ING I - ". _. ". ,"-_ '-~ .. ';'~ ,,.. ... ', ~..-_.~",,~"*".~~_""-_,;a.'_~, ~' _ ... ~ ____ r' _________________ , .. ·,1 .... _------_ ... ------ -.-----_._- -~~ , g:1i~~ of water pe~ac::Sin spring when grass is ~. _ .= ..... =. ,=.:.-:=-:'-=;c--::,,=' • ,::::c::.::: :::::::7:" = .. _:::_~~:,::":--:_:::=-:--::~~~_-::-'-:-::-~':::-:, >'~ , _____ .: '---:.. ! )~ .! 4 inches tall. Four to eight days ~fter ~prrtying plow the sod. rototil, spade, or in some manner turn under the squakEfr~ss leaf t;rowth. Prepare the pln'W "\'~ . ';:, e () 1. 1'- -,-,," .. ,.,", 1 ....... i..., -.-') "uc'~ ... - ., .," ... I·.·.·'.'f "-". ,'.1' './ .. " ~.J l ~_ ...... -.. ___ ~ __ .j' - :~. __ :_ r,' 1 ';. -- .. ! J' '-. ' , -_ .. _--., pre ~ ~~ r ~ '"rI.'. ~ .' L; . j:!." 1 './ ,..- ~., r '1 I 'j r ~. ~'L~ '," ~ r ... ~ .. :, T :' -, ! ~~ -~ 1 I-J.-,~.r ~ i 8 ~.- !TIent of to;' lc..iv€"-. Too 13te "'pr:;ying will 3110'" s:Jrr.e sucker (rm .. t~. t"JL~_ FLOV!~B L -+:~.e stOlg~ wh,:,p' 'lJ% of yo"r rbnt:. ha~,e begun tc -::h~'2 'th~ir first flO\.:ers. Rains or.currin~ within 12 hour,:: after spraying may re- duce effectiveness. oJ). ~ ~'.:.~ V'., 3. Follow ~oc::..ge recommend::l.tions carefully. spray 'ielcl , -J . '.' uniformly and do not use less t:lan th~ minirnU!!' amount of W3'ter IS'-.. ' ,. ..... t~e . : \ reco:"T.len1ed on tc1:J'1cco • ..... -..."".,..".,. ... = .... = .. ~ .. ,.. ~,~. ~~~ .. ----~*---.-.. -. ~~-·-ffl "-'"---'--''' .. ._ .. _- . __ ... _.- .. _-_._- ... _ .. _ ........ - .. -- -----'-"-"'-' .. -- .. -_ .... ---....... - - ----.. - -.......... --._-_ ... _-_ .... _-_ ......... ------- .. ---... --.. -- ---.~.,.,.,...- -~. i ' I 4. Thor Br~nd Malei.c Hyd:rs2'ide has been uc;"" su('cessfully with -. ~ - 5(/f I--t:: ., 5. ~'otlrther s+.;urlie<: are cOll'.pleted. • I V..,) L-' :,.ot usn on tobacco Dr potato plants Q'ro'JIl tor s~e1 production. S. :Jo not c:pra'! t-:::~")ar·~o in the mi~dle of hot, '"ir,,! rS"l.)rc; \oJ11en leaves are severel, · ... -'llte'1. For best results Srr)y dur ir.tr ~;;..rl,! r.lQ!'ning, all day on clou~y dale, av~idin~ ~he 13t~ afternoon or night 32:Jlicat~ons. '7 , . 8. (Use a no:-:zle rle1 ivt:ring ~ fs'ne mist spray. Sc not.C;2 ::i '~')road-jet t'pe nf spr"i '!. ) r'loc;e l',r 'h •... :>n".~ -s"okpr" .~. TTl':..! HO fiND I" -, L~ ..... , vvnn ~ 'In' + t d • .'~ • ~ -4 _ Co r _ r ._ 1l. _:1..t\: .n ~ j.... ,'.L"'"\' L. L i'. -, rea e tobaccc ·...rill not ri?en "'s -rarid1y- dS ~oorly stlckerel tob-=vco. Also, 'mder s Or.\t: c~n.j i t hns Thor ,:rand Male ic Hy~raztde tn-ated t i ~y; have a ti?nde;1cy to "c':rn y-t::llo',; prema~·lrely. Tt->is i-=. :~ot :1~r~Lll ~:iIld Joes not !,!c."l.:1 -+:hat rour totn.r::r'] ~s ripe. r ,:,refor~_, 'L~ not h.dT\rec-t THfJR BRAt~J MALt,IC HYDRA/IDE - :rp,!::~ 1 tC'h:3. e'f D bV using time dId color of the l··av':s ::;c: your :'nlt .'U1'·-:- to rl~Jc'n.~~s. 'lse other ch3r~ct9ristics indic3t~v~ of rlpene~s ~uch J~: a. F:::t!ing:Jf ('olor from !Y'.i.]ri.~. b. Cha:.~c \n a~r~l'~nt leaf ~~Trure. If tob1cco :-l.:Jntc: r,alr" ~'?en 2rc"",'n und'r of TTl;::) ,n)r,'J: ·:.~I·.'Ir C.JV'l'RA / rT'·. ..Till ... '.\ .~'1.~ .• ,~.~, ,_1.1. .. 1 ~ ... ..1._)., " L .. ' little THJR ;jRt:,NlJ ~.ALi II' HYDRA,:IDE :J.rfJu,lr.+ ccnri:tiuflS :l~)'-:;urrticr~ be "'Lv .. : J.nr' r'~ ~lts rna)" not .~p" ~ rQ~ rnntrol. Tno l'Il11ch is '..Tasteful and J'.-J "',jl r~l'Fe tJua15ty of tiT'S. ''''; 1. I 1 r e ", j l' 1 n I' ' t 'r. a n may r1u~e ~urn1ng of leave~ 8ther Cr(1t"s • , 10. .i::.,oT C' ont r .'~_L..c.f _Jii.ld .. .llI\igos an'l ~ar J iL' ,lc l\ C' t 'i :T 1 v to young see·n lngs lee,s tj,an one Se3S0T\ ol"'! '.lr ·..;:nter ;:..t'';­ tl1res consi~t1n~ of small gr~\ns such IS ryp. rn no~ r~s­ ture 1 i vestock In. or cut hay from trf: Jt~ d :*r'·4i. ill ~mIlb1AatiDn with BcrdeauxA_~. t • • t!. .-= .----------------------------- -" -, ~-~- ---.---------------------------------.--- ~- , • 8. 'type of Closely hand-sucker~~ or THOR BRAND MALEIC HYDRA~IDE - treated tobacco will not ripen as rapidly as poorly suckerei tobacco. Also, under ~ome conditians Thor Rrand Maleic Hy~razide trp~tpd tir~ have a tencency to t';r-n 'I 110" .. : premi'lt'lrely. This is !~nt :l~r':1ful 'mdioes not l"",l:1. +-hat (our to~)qcr(') ~s rire. T>.rpf(ir" ,1' J\ot harvI:-"'t TI-{flR BRA.t.;] Mi\L~~IC HYflR;';JDr: - ~,T'-.-::-:-~ 1 t,~, i" '::Vl 'n. time ctI:,l c'ClLJr of th'" 1· ';'V'S,'- y~11r '!dr ;'\;~ 1·- tc r:' 'II'. character i st ics indicat 1. ve of ripeness s'.1ch as: a. F::t:iing:)f color from !nldri~. b. ChaHse in aprarent leaf tf-';'nure. • • ',,, "t'-'~'r ' , - If tobacco plants have 'been g-rown und~-r drought conditlons absorpticn of THOR BRAND MALEIC HYDRAZIDE will be slow and results may not be ~s good T.·'lR 9RA_'IT"n MAL~Ir IfYDRA~-TJ~' i 1 ~-t-h '" b ''?~ b _ ..J ,_ ~ _ _ __ S .::ompat;;:i ... e ".l~ _ "J.ane, L.~ne • Phygon-XL, Ma13thion, Me~roxychloro, ~i~lirin, h€pt3chlor, Neutral ~Ot'per F'"ngicide, DIYf, TC'x3rl--,pne, P"-IJ·' to c:;pray >r;c:irnent. It -ioe~ not off!:-'r drift nroblems on neart,y crcrs. 15. TWm rm,-~T) MAL~,Ir HYDRA7,IDE Separ-:it~on of wettin~ a~ents with mild a~ltation re~torec; contltlon. ....i11 not ~r'}n2e t:ven at zero 'legrees F. occurs at 4~ F. Warming from 600 to 70 0 F Tl'nR BRAND MALFlf; HYDRA ',IDE ~o original -----------------------------------------------CONTAINER DISPOSAL Chop hole~ top anfi bottom. Bury IS" below ~oil surface at safe rUsposal sit~. NevFr reuse for food or water.