# DICHLONE 50 WP FUNGICIDE

- EPA Reg No: **279-491**
- Registrant: FMC CORPORATION 
- Signal word: Caution
- Active ingredients: 2,3-Dichloro-1,4-napthoquinone (50%)
- Label accepted: 1983-12-14
- Source PDF: https://www3.epa.gov/pesticides/chem_search/ppls/000279-00491-19831214.pdf

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( 
t. 
Code 284 
Dichlone 50 WP 
Fungicide 
EPA RIg. No. 279-481 EPA Eat. 278-
Active Ingredient: 
'Oichlone......................................... 50.0% 
Inett Ingrldlents: .......... " . . . .. .. . . .. . . . . . .. . .. 50.0% 
100.0% 
KEEP OUT OF REACH OF CHILDREN 
CAUTION 
fA"CCEPTED\ , . 
I 
DEC t 41983 
• ,..e1:Id.lr-
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-FMC. 
FMC Corporation 
Agricultural Chemical Group 
2000 Market Street 
Philadelphia Pennsylvania 19103 
11(1,7.·" 
,.,. nJ.A 
._--------, 
Lbs. Net Wt. 
Environmental Cautions 
This product is tox)c to fish. Avoid use in shallow '&1m ponds which 
conI'" o»sirabie Iish. Do not use an poCable waler. Do nol apply _e 
runoH is likely 10 occur. Do nOI apply when wealher condilions lavor 
driH Irom .roas Irealed Do nol conlamINle wale' by cleanin9 oI.c!ulp. 
menl or di$pO$al 01 wasles. Apply Ihis p'oducI only as speQliod on Ihia 
label. 
DIRECTIONS FOR USE 
H is • vlolalion 01 Fed .. al Law 10 .... IhiI p'oducI in • manner 1nCon· 
si .. ..,1 wilh iii labeling 
Do not apply this prodUCI in such a manner as 10 directly or through 
drift expose workors or other persons. The area being trNMd In' At 6e 
vacaled by unprolOCled persoos 
Do nol enl,,' lrealed clolhing unl~ spray- h<lve 
dfiod. 
restrictive reentry intervals for 
::',::.k:'~~~"'" consult your Stale o.partrnenl 
Wtittlll or oral warnings must be given to workers who are expected to 
be in a treated area or In In ar.a about to be (r&ated With this product. 
Inform workers 01 areas Of fields thai may not ~ entered without speQflC 
pmtective clothing. period of lime field must be vacated and appropriate 
act)Ql1S to take in case of accldental exposure. An .xample Of lUCh 
Information IS grven under wflt1en wamlngs When oral warnings Bro 
gIVen. warnings shall be given in • language customarily understood by 
workers Oral warnings must be glv811 if there is reason 10 bellowe that 
written warnangs cannot be understood by work.,s Wnnen wamings 
mu,t inctude the touow.ng Information-
CAUTION 
AJea treated wittl Dtchlono 50 \VP on (Insert date) 00 nor eoter 
WIthout appropriate protectt ... e Cio~ unliT spt'ays have drjfd 
(lOsert Stlte Department of Agnculfure S r,-entry mlervaf,lf mew. 
reSlrlctJvel 
In case of aC(:Jdentai 8).posute 10 pesttctOB spray or dust. wash 
the skin l'tIofoughly with soap a.nd water Retn'Jve contiminated 
Clothing and wash belOfe reuse II in eyes. flush Wlth plenty of 
waler It mhaled, go 10 an area where the pestiCide 1'\;:1$ not btren 
applied Gel medical anenllOl1 I' needed 
Storage and Disposal 
I'H11e,* Slor_ 
Keep 0U1 of (NoCh 01 children and antmals. Store In or;glnal con· 
talners only Siofe Ir a cool, dry place and IiIVotd excess heil. 
Carefufly open cootamers After partial us., told and roU back 
N-gs, clamp ond clo~ t'9hUy. 00 not put ooocentrate or dilute 
mal~rlal Into food or dunk containers 00 not contaminate othet 
PHttddrts. tert.Jhzers, *liIter. food or feed by 'tor~e Of disposal 
In use 01 Sp!!I. avo:d contact. isolat. are. and keep out animals 
and unprOleclod per""" Cont .... Sl>'IIS Call FMC coHee! (716) 
735·3765 
T') conf-ne sp!1l If hQu'd, dli(e 5urroundu'19 .rea or abSOf'b with 
sand, cat lift6' or commerCial clay If dry material, cov&r to pte­
venl dls.peorsal Place dAmaged ~age In a ~ ~ 
Identify cor,tents 
PHUckN Dltfoe'\l ~ '.. .:. ~:. 
Wastes res~tt~ng r,Of.1 the USEr-Of MIS prOOlA:t mar be dtSQOMd 
01 on Me or III an c1p',)f~~ \ltast~s~I"icchl~. 
Contalntf Oftpoe.il .. .. •• •• 
Corr.p~tel'f empty b8g Into sppIlCahon equipment Then dispose 
of empt'l ~ In • 5anllary landflh or b.,. u''ltlneratlon, or. If allowed 
by Siale and ~I fulh"'!, ••. ttl ~'n''"1 "''''t'-.Iay oul 01 
s~o _... • • .. 
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00 nol US4iI Otchlone with ml).tuf8S contaiOlng QQ. Bordeaux mixtur •. 
lime sulfur or organiC merCuries 
Do Not U .. In Undllu .... Foo", 
Apple: Apple Scat>-Use " pound per 100 gallons of wafer on a pro· 
tective scNdule at 5 to 7 day Intervals 'rom dell~'ed dormant through 
the early cover sprays. Use t" pound per 100 gallons of waler. in ap­
plications up to 50 hours after the Stillr1 of a rain. for after rain infecllOl1 
period. Use a full coverage spray but do not exceed 8 pounds per acre. 
For 'lie COYef appitCatlOOS. use • sUitable summer fungdde. Oict11ooe 
may cause k'lJury to apples durmg perIOdS of htgh temperatures. 
CIMrry: Brown Rol Blossom B!ighl-Use '> pound per 100 gallons of 
water al popcorn, full bloom and petal fall s:ages 01 growth When 0001, 
wet weather occurs, resull1ng In a ptok:>ng&d bloom period. apply every 
"days. Brown Rot of FrUit-Use ';'1 pound per 100 gallons of waler .t 
7 to 10 day Intervals beginning at petal fall Cherry Leal $pol-Use 'h 
to -l't pound per 100 galloos of water beginmnq immedlatily after petal 
fall. Make two additional treatments.t 10 day Intervals Use a full cov­
"'lge spray bul do not exceed 10 pounds per acre. Do not apply wilhin 
3 days ot harv •• 1 
~h: Brown Rot-For blossoms and twig brown rol blossom blight. 
UN ','l10 ~'4 pound ~ 100 ga!loos 01 water al pNlk bud st •. luU bloom 
and pet,l fall When COOl. wet weather occurs. resulhng In a prolonged 
bIoon, penod. apply every 4 days. Do nol apply after pelal fall. Peach 
Cahlomia Blighl (CQryneum Bhghl)-Use ~, POUnd per 100 gallons of 
Wiler as a post-harvest spray between September 15th and September 
30th In Oregon and Washlnglon Peach Leaf Curt-Use 1 pound per 
100 galfonl of waler as a dormanl spray Jusl bel",. lhe buds begin 10 
.well 
Use a full coverage spray but do not eJ.cNd 5 pounds per &ere 
Plum, Prune: BraWl' Rot Blossom SllQht-Use I'} to 3.. pound per 100 
gallons of waler at green bud. popcorn. full bfoom and pte· shuck fall 
stages of gr0\lrl1h When COOl. wet wealher occurs. resuttmg In a pro­
Ionged.bklom penod. apply e"'$ry 4 days Do not apply after the petal 
fall ,*)0(1 Prune Russel Scab (lacy Scab) (Cailfornra Only)-Use ''J 
to ~'4 pound per 100 gallons of water Apply In popcom to fuJI bloom 
IIage of growth. Do not apply after the pelall,II penod 
Use a full coverage spray oot do not exceed 2 5 POUndS pe1' act. 
Strawbefry: FrUit Rot (Botry1ls)-Use '. pound In 200 gal~ons of water 
pe! acte Make the first app!'cahon as new growth starts and repeat 
appl"1CII!IOOS 81 full bloom. calyx. aM every 10 to 14 days unhl 3 (Says 
belOf, first plC:kulQ 
BMnI: Anthracnose-Usc I to 1'7 pounds po' 100 ga·lons of water at 
WMkty Intervals In a senos of 4 10 5 apphCilhons. Slal1'ng Just belore 
bloom Us. 100 10 150 gallons {\~ spray P6f acre 00 flOC apply wlth,n 
7 days of harvest 
CMry: Earty and lale B!J9hl-Us.e 1 POUnd per aCte rn 200 garroos Of 
Wiler Begm apphcatlOO.S 7 to 10 days after p!anls are set and repeat 
every 5 to 7 days dUring IOf&Ctton pcnod 
TonwtON: Eally and late B!.ghl, Gray Mold---Uso 2 to 2''1 poundS per 
acre In sufflClent water for thorough coverage Appty at " to 7 day 
Int&tvals dunng Infection penods For control of gray mold. latc blight 
phoma rot and leaf spot In plant beds Use 1 pound per 100 gallorls of 
waf&!' (3 Ieve-I teast...:.ons per gaflon) pot acre Begtn wheo plants efT"Iiefge 
Repeal al 50 10 7 doily Intervals ur-hl uanspfanflt"lg time For control of soli 
borne dlSf"~s at trans~lanll~ MIX 1 pound per 100 gallons Use as 
a dip after pul!lng and befOte p(anllng 
Note: DlChIone lTllly '"Jure 10000alo ptams ,f applied *"*' ttmperllure 
reachos 6S'F 
AKrMtIonaI l.aUI, Farm Pondl: For control of c.rtaln Bloom· 
Produong Blue·Green Atga&-Use 0 05 ppm O'r 2 2 01.mces 01 OIchlone 
SO WP per Icre·fOOI 01 *a:er (325.960 ga'005) AppltCattOn In e.:cess 
of 0 07 ppm 'ki't kJ'l hSh It extremel)' heavy growths of alQae are It811et1. 
apply 10 a~t one third of the pood at a lime to allelll the f.sh to mo ... e 
to an area ~!tt f<to-l)fab1e fbt o~en su~)' ...A'llfe....:tl Ihe segment I' 
f'ItJCflsary In 2~o 3 cays Th&'lnteoNal betw~e,. lreal",ont of segments 
of the pond Qf'lak-.. t-hould ~ suH~t 'to' 'l1'lQ.w fdt IjeoomP05J!1OO 01 
thw algae berate .djccenl ArMS a.'(' !-eated Qf re.:r,)~!ed Once under 
--_._--, 
control. retreat only wnen II IS apparent that re·grOw1h of algae is oc;­
CUHWlg rapidly Use one of the fo!lowing mmhods of treatment· 
Consult your Stale fish and Game Agel1(;V belo~e applying thiS product 
to publIC waters 
Spray Method· Mi"( reqUired amount 01 Dtchlone 50 WP In & or more 
gal'ons 01 waler and spray as uniformly as POSSIble over Ihe water 
surface Any sprayer equipped wlth agitation may be used. 
For isolated grcups of these algao. thoroughly spray the surface of 
fklating mats ""'llh I.? to 1 ounce of Dlchlone 50 WP in 3 gallons of water. 
Apply at Ihe ral. of I oz. of D,ehlono 50 WP por 20,000 SQ ft_. 
a 1 (oot depth IS intended to be trealed. A knapsack sprayer may be 
used for spot treatment 
Drag Method: Place the requned amount of Dlchlone 50 WP In a finely 
woven cloth bag-such as a floUI bag-and drag It through the Irea to 
be treated AHach thtl bag to tho srd of a boal or t.e it on a klng pole. 
Make 8~tKJf\S as umfOfmly as poSSible 
Swimming Pools FO! control of Cortaln Bloom-Prodocing Blue·Green 
A~.e---U-se t ounco 01 Dfchlone 50 WP por 50.000 gallons of water 
(0.15 ppm of Doch!one 50 WP) Begin apphcal,ons when algae hlSt 
appear at the bottom of the \ltatsr area and rtlpeal when necsss..:'\ry at ( 
1 102 week mtet\lals. Use one of the methods of traalmenl hsted above 
for recreatIOnal fakes and farm pondS Three (3) 5evelleaspoonfull per 
gallon equal I Ib per 100 g.lIons 
O.al". Should Sell In Original Packages Onlv. 
Term. of S.1e or u .. : On purchase of thIS product buyer and user 
agree to Ih. fol~ng conditions 
W.,ranty: FMC m~M no ",,' .. rranly. expressed or HTlp!Led. concerning 
the use of thiS product ether than ioolc.n!od on the label E-.:cepl as so 
warranted. the product is so~o as IS Buyer and user assume all nsk of 
use and. or h<lndllr.g and Of SIO!D.l]e of thIS matenal when such use and,o. 
or handtlrg and or storage IS contrary 10 label mstructK>flS 
Direction. and f'«ommtndltlonl: FO:low directions carefully Timing 
and mtthod of application. wealh~' and crop condrhons. mlJ.!ure witfl 
other chem,cals IXI! speclfa1[y recommended. and other mfluencing 
facto's In the use 01 thiS prOduct a'O be,·ond the control of the seller 
end cUI) assumed by buyer at hIS own nSi< 
U .. of Produet: fMC·s rccommendatlors lor the use 01 thiS p4'oduct: 
Bre based upon tests behaved to be re~lable The use of thIS product 
being beyond the control o! It'e mo1nufAct'-'Tor. no guarantee. oJ.prossed 
or Imp~i8d. IS mado as to the effects of such or the results to bo obtained 
If not usod In accordance With dlrCCbons or estab~lshcd safo practlC6. 
~: Buyers or user s exc:usrve remedy for damaQ:{lS for breach 
of wa~ranty or neg'lgence sha:1 be ilm.te-d 10 (Ned damages not ex­
Ceeding the purchase prIce pa.d and sha:· nol ·"elude InCidental or con­
sequential damages 
l264-al3) 
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