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Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
This commit is contained in:
Justin Paul
2026-05-24 12:32:41 -04:00
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# DUPONT COVER HERBICIDE
- EPA Reg No: **352-590**
- Registrant: CORTEVA AGRISCIENCE, LLC
- Signal word: Caution
- Active ingredients: Sulfentrazone (75%)
- Label accepted: 2002-05-21
- Source PDF: https://www3.epa.gov/pesticides/chem_search/ppls/000352-00590-20020521.pdf
---
'III
H-
<[UPON~
DuPont™ Authority®
herbicide
DRAFTL
..
• ' > ,
•
" ......... A Growing Partnership With Nature 'J
Table of Contenh
Precautionary Statements ..................... I
Directions for Use ........................... 2
General Information .......................... 2
Biological Activity ........................... 2
Early Pre-plant, Preemergence, Preplant
Incorporated Use Dlrecdons
Application Methods ......................... 3
Preplant Incorporated (PPD .................. 3
Preemergence ............................. 3
Us. Rates ................................... 3
Application Timing ........................... 3
Weeds Controlled ............................. 3
Preplant Bnrndown Use Dlrecdons
Weeds Controlled ............................. 4
AUTHORlTY® + ASSURE® II
tankmixes for improved grass bumdown ......... 4
Planned Frogram: reduced rate preemergence
followed by postemergence Use Dlrecdons
Reduced Use Rate """'''''''''''''''''''''' 4
Application Timing ........................... 5
Weeds Controlled ............................. 5
Rotadonal Crop Guideline. . .................. 5
AppUcadbl1 Informadon ...................... 5
Equipment/Spray Volumes ................... 5
Spray Tank Preparation ..................... 5
Mixing Instructions ........................ 5
Proper Handling Instructions ................. 5
Sprayer Cleanup ............................. 6
Spray Drift Management ......... " ........... 6
Resistance Management ...................... 7
Integrated Pest Management .................... 7
important Precautions ........................ 7
Storage and Disposal ......................... 8
Notice of Warranty " .. " .... " ............... 9
<®PON~
DuPont™
Authority@
herbicide
Dispersible Granules
Active Ingredie11l., By Weight
Sulfentrazone
N-[2,4-dichloro-5-[4-( difluoromethy 1)­
-4,5 -dihydro-3 -mcthyl-5-oxo-1 H-I ,2,4-
-mazol-I-v I]phenyl]methanesulfonamide 75%
Inert lmrredients 25%
TOTAL 100%
EPA Reg. ~o. 352- 590
KEEP OUT OF REACH OF CHILDRf2N
CAUTION
FIRST AID
IF SWALLOWED: Call poison control center or doctor
immediately for treatment advice. Have person sip ., glass
of water if able to swallow. Do not induce vomiting unless
told to do so by the poison control center or doctor. Do not
give anything by mouth to an unconscious person.
IF INHALED: Move person to fresh air. Ifperson is not
breathing, call 911 or an ambulance, then give artificial
respiration, preferably mouth-to-mouth, if possible. Call a
poison control center or doctor for further treatment advice.
IF ON SKIN OR CLOTIDNG: Take off contaminated
clothing. Rinse skin immediately with plenty of water for
15~20 minutes. Call a poison control center or doctd! for
treatment advice ..
IF IN EYES: Hold eye open and rinse slowly and gently
with water for 15-20 minutes. Remove contact len,cs, if
present, after the first 5 minutes, then continue rinsing eye.
Have the product container or label with you when calling
a poison control center or doctor, or going for treatment.
You may also contact 1-800-441-3637 for emerger·.cy
medical treaunent information.
PRECAUTIONARY STATEMENTS
HAZARDS TO HUMANS
AND DOMESTIC ANIMALS
Causes moderate eye irritation. Harmful if swallowed,
inhaled, or absorbed through skin. Avoid breathing dust,
vapor or spray mist. Avoid contact with skin, eyes or
clothing. Wash thoroughly with soap and water after
handling.
1
PRECAUTIONARY STATEMENTS (cont'd)
PERSONAL PROTECTIVE EQUIPMENT
Some materials that are chemical resistant to this product
are listed below. If you want more options follow the
instructions for Category A on an EPA chemical resistance
category selection chart.
Applicators and other handlers must wear:
Long-sleeved shirt and long pants.
Chemieal Resistant Gloves Category A, (such as butyl
rubber, natural rubber, neoprene rubber, or nitrile rubber),
aU 2:14 mIs.
Shoes plus socks.
Discard clothing and other absorbent materials that have
been drenched or heavily contaminated with this product.
Do not reuse them. Follow manufacturers instructions for
cleaning/maintaining PPE. If no such instructions for
washables, use detergent and hot water. Keep and wash
PPE separately from other laundry.
ENGINEERING CONTROL STATEMENTS
When handlers use closed systems or enclosed cabs in a
manner that meets the requirements listed in the Worker
Protection Standard (WPS) for agricultural pesticides [40
CFR part 170.240 (d)(4-6)], the handler PPE requirements
may be reduced or modified as specified in the WPS.
USER SAFETY RECOMMENDATIONS
Users should: Wash hands before eating, drinking,
chewing gum, using tobacco or using the toilet.
Remove clothing immediately if pesticide gets inside.
Then wash thoroughly and put on clean clothing.
ENVIRONMENTAL HAZARDS
This pesticide is toxic to marine/estuarine invertebrates.
Do not apply directly to water, to areas where surface
water is present, or to intertidal areas below the mean high
water mark. Drift and runoff may be hazardous to
terrestrial and aquatic plants in neighboring areas. Do not
contaminate water when disposing of equipment
washwaters or rinsate.
Groyndwater label adyjsory: This chemical is known to leach
through soil into groundwater under certain conditions as a
result of label use. Use of this chemical in areas where soils are
permeable, particularly where the water table is sballow, may
result in ground-water contamination.
Do not use on coarse soils classified as sand whic:.t La ie less
than 1 % organic matter. • ~ " .. 4 '
Surface water adyjsm:y' Sulfentrazone can l'(\J't't");nate
surface water through spray drift. Under some conditions,
sulfentrazone may also have a hi311 P0t."tial for runoff into
surface water (primarily via dissolution m runo·r wat<r), for
several to many months post-appJ I(;ation. Tllese w.clude
poorly draining or wet soils with reaclliy visible slvp •• ~~ward
adjacent surface waters, frequt;l.J.t;) Jooded a.:l.asj JIeas
overlying extremely shallow grouuJ 'ha.;er, areas wit!.. in-field
canals or ditches that drain to surface water; .1:'cas not
separated from adjacent surface waters with veg'!~3~(:j filter
strips, and areas over-lying tile drainage system, '!lat ".rain to
swface waters. : . I '
PHYSICAL/CHEMICAL HAZARDS
Do not use or store near heat or open flame.
"
PRECAUTIONARY STATEMENTS -
IMPORTANT
Injury to or loss of desirable trees or vegetation may result
from failure to observe the following: Do not apply or drain
or flusb equipment on or near desirable trees or other plants,
or on areas where their roots may extend, or in locations
where the chemical may be wasbed or moved into contact
with their roots. Do not use on lawns, walks, driveways,
tennis courts or similar areas. Prevent drift 0 f spray to
desirable plants, Do not contaminate any body of water,
Keep from contact with fertilizers, insecticides, fungicides
and seeds during storage,
Prior to using DuPont'" AUTHORITY® herbicide,
consideration should b. given to crop rotation plans.
Crops other than soybeans may be extremely sensitive to
low concentrations of AUTHORITY® remaining in the soil
the next planting season. <-'boice of rotation crop is
restricted following application of AUTHORITY® (see
"rotational crop guidclines
ll
).
Thoroughly clean AUTHORITY® from application
equipment immediately 2 !ter use and prior to spraying crops
other than soybeans. FaiL.!re to remove even small amounts
of AUTHORITY® from application equipment may result
in injury to subsequently sprayed crops.
DIRECTIONS FOR USE
It is a violation of federal law to use this product in a
manner inconsistent with its labeling.
Do not apply this product in a way that will contact workers
or other persons, either di,-"ctly or through drift. Only
protected handlers may be in the area during application.
For any requirements specific to your State or Tribe, consult
the agency responsible fOl pesticide regulation.
AGRICULTURAL USE REQUIREMENTS
Use this product only in accordance with its labeling and
with the Worker Protection Standard, 40 CFR part 170.
Thi~ Standard contams r~qwrements for the protection of
agncultural workers on farms, forests, nurseries, and
greenhouses, :rod handlers of agricultural pesticides. It
contams reqwrements fcr training, decontamination
notification, and emergency assistance. It also conurlns
specific instructions and .xceptions pertaining to the
statements on this label ;tbout personal protective
equipment (PPE) and restricted-entry interval. The
requirements in this box only apply to uses of this
product that are covered by the Worker Protection
Standard.
Do not enter or allow worker entry into treated areas
during the restricted entry interval (REI) of 12 hours.
PPE required for early entry to treated areas that is
permitted under the Worker Protection Standard and that
involves contact with anything that bas been treated, such
as plants, soil, or water, is:
Coveralls over long-sleeved shirt and long pants.
Chemical Resistant Gloves Category A, (such as butyl
rubber, natural rubbl!r, neoprene rubber, or nitrile
rubber), all 2:14 mls.
Shoes plus socks.
2
FOR USE ON SOYBEANS ONLY
Do not apply by aerial application.
00 not feed treated soybean forage or soybean hay to
live&tock.
00 not apply this product through any type of irrigation system.
00 not apply AUTHORTIY® more than 5.3 ovA per season.
AUnIORTIY® herbicide must be used only in accordance
with recommendations on this label or in separately published
DuPont recommendations.
GENERAL INFORMATION
AUTHORITY® herbicide is a dispersible grsnule
formulation, to be mixed with water and sprayed for
selective preemergence weed control in soybeans.
PreemeIgence and preplan! incorporated applications of
AUTHORITY® require ruinfall or sprinkler irrigation to
activate the herbicide. Degree of control and duration of
effect depend on: rate used, weed spectrum, growing
conditions at and following time of treatment, soil pH,
texture, organic matter, soil moisture and precipitation.
BIOLOGICAL ACTMTY
AUTHORITY® controls weeds througb the process of cell
membrane disruption. Weeds emerging from soils treated
withAUnIORTIY® become neerotie (wilt and become
brown or looked burned) and die shortly after exposure to
ligbt. Foliar contact with AUTHORITY® causes rapid
desiccation and necrosis of exposed susceptible plant tissues.
Poor growing conditions such as excessive moisture. cool
temperatures, and soil compaction or 11, presence of various
pathogens may impact seedling vigor. Under these
conditions, AUTHORTIY®, like other ,oil-applied
herbicides, can injure soybeans. However, these early injury
symptoms are short lived and do not res"lt in yield reductions.
RAINFALL ACTIVATION
FOR PREEMERGENCE ACTMTY
Best results are obtained if AUTHORTIY® is applied to
moist soil and followed by rainfall or inigation before weeds
germinate. Several small rainfu\\s ofless than 114" each are
not as beneficial as one large rainfall of 112 to I". On dry soil,
more moisture may be required for activation before weed
emergence. If moisture is insufficient t~ activate the ••• ,
herbicide. a rotary hoeing or shallow cultivation sho~cl Lt.
made after emergence of the crop while weeds are Si nall
enougb to be controlled by mechanical means. Whea
sufficient moisture is received after dry tl,>nd·.tions,
AUTHORITY® will provide control' of susceptible
germinating weeds. ' .
. ' .
EARLY PRE·PLANT, PREEMERGENCE
AND PREPLANT INCORPORATED
USE DIRECTIONS
APPLICATION METHODS
Do not apply DuPontT" AUTHORITY® after the soybean
crop has emerged or severe injury or death of the crop will
occur.
Preplant Incorporated
Uniformly incorporate AUTHORITY® or AUTHORITY®
taokmixes no deeper tban the top 1-2" of soil prior to planting
soybeaos. Use equipment suited to proper incorporation into
the top 1- 2 inches of soil, e.g.: Do-all, field cultivator, or
roterra. AUTHORITY® can be tank mixed with "Command"
4EC and applied preplant incorporated. Refer to the
"Command" label for specific use instructions. If tank-mixed
with a gross herbicide such as a Dinitroaniline (DNA) like
"Treflan
ll
, "Sonalan", or "Prowl" or an acetanilide such as
"Dual Magnwn", "Dual II Magnum", "Fronti.er", or "Lasso",
follow label instructions for proper incorpo~"tion of the grass
herbicide into the top I to 2" of soil. Improper soil inCOIPO­
ration can result in erratic weed control or crop injury. If soil
is dry, rainiall (-I ") is required to activate preplant
incorporated herbicides such as AUTHORI1Y® before weed
emergence.
NOTE: Consult "Lasso", "Dual Magnum", "Dual Magnum IT',
"Frontier", "Prowl", '''Yreflan'', "Sonalan", or "Command"
label ... for additional weed'i controlled, use rates and instructions,
whenAUTHORITY® is used in col1iunction with these
herbicides.
Early Pre-plant or Preemergence
AUTHORl1Y® can be applied early pre-phUil or preemergc'llce
in combination with herbici.des stich a') DuPo'"'t™
CANOPY XL@), DuPont™ CLASSIC®, "Conunand" 3ME,
"Lasso", !1Scncorl', "Boundary". "Dual" Magnum, "Dual" II
Magnum, "Frontier", "Prowl'! or following the- use ofa preplant
incorporated herbicide slIch as l'Tretlan" or "S~)llalan". Consult
labels for rales and use instructions.
USE RATES
Early Pre-Plant, Preplant Incorporail3d, or
Preemergence
j\ppl~·;.\I.Jffi:01l:i¥Y®.~~i~\d;;'al4-i3'olJn;~:·'~IkH;:ii::JI
,Use 'llie hlgher'_ ;YhC\)~yappll~~k@.!ii¥i'~~<i:i·:!:':i
"'-, ." - _ _' -"';'" \,"'0 - '.," ,,_' ", ", . .-,:.,:,',' ,,",''' _." ;",J','", '1'., ",1,''.1 .. ;~
:.heavXweed Pll!ssu;es ;u:e.knowtiio i:iiisfoFill'm'i!/ith"!:!!r:
"high ~igaDic nmue;:¢9rit,;;ll(>4:0"!o):':> '.r.· i"""" '''''i'!'i''
• " - ,~, 1(;,(; ,::, ,; \ _ __"" ;.; .~; ;;,-: :;::: : ,'.""';,, -1 ,"
APPLICATION TIMING
AliTHORIT)\~jllay b~applied ~[l to ~iJd!!y~fieforei,;:
planting, at I!~ or after planting butl>erori;.~Y~e,ani
emerge, .tmles~. 9therwise'specifiedOlibuPoatsUpplemental
labeliog. Application after soybean pIaiits emeige will
cause injury or death of the crop. .." :,' '-.. ;,
3
WEEDS CONTROLLED
When used as directed AUTHORITY® at 4-5.3 ozlA will
provide preemergence control of the following species:
Black Nightshade
Carpetweed
Copperlea£, Hophornbeam
Groundcherries, smooth,
clammy (seedling only)
Jimsonweed
Kochia*
Lambsquartcr*·
Mominggl0o/' entireleaf,
ivyleaf, pitted···.
smallflowcr, tall
Nightshade, eastern black,
hairy
Pigweed··, redroot, smooth
Palmer Amaranth""
Purslane, common
Russian thistle
SmeUmclon
Spotted spurge
Waterhemp*, common, tall
... includes ALS and triazine resistant strains
*. includes triazine resistant strains
···weed species which can germinate deep in the soil such as Pitted
Mominggioxy or other weeds which may emerge at various times
during the growing season, may require a cultivation or an
application ofCLASSIC® or DuPont™ SYNCHRONY® STS®
herbicides for season long control.
When used as directed AUTHORITY® at 4-5.3 ozlA v,ill
provide partial preemerge control of the following we,'''S:
Biennial Wormwood
Bristly starbur
CocklebW'
CopperleafVirginia
Florida b.ggarweed
Florida Pusley
Marshelder
Prickly Sidat
Ragweed, Common
Smattweed, Pennsylvania
Smell melon
V.lvelleaft
Venice Mallow
Barnyardgrass
Fall Panicum
Foxtail species
Goosegrass
Johnsongrass, seedling
Large Crabgrass
Signalgra". broadleaf
Wild Buckwheat
Yellow Nutsedge
t for improved control, use 5.3 ozlacre.
For weeds claimed under partial control, a preemergence
taokmix partner, or a sequential application of one or more
post emerge soybean herbicides such as SYNCHRONY@
STS®. CLASSIC® or DuPont™ ASSURE® II will be
necessary to provide season long control of these weeds. To
select the post emerge berbicide(s), identify the weeds that
need to be controlled and and consult the appropriate
product labels. In "Roundup Ready" soybeans, a
glyphosate-containing herbicide approved for soybeans,
may be used to provide season long control offrese we ods.
S/JI
PRE-PLANT BURN DOWN
OF BROADLEAF WEEDS AND ANNUAL
GRASSES - USE DIRECTIONS
In addition to providing season-long preemergence control of
certain braadleaf weeds and partial control of olher braadleaf
weeds and armual grasses, 3-5.3 ozlA DuPont™
AUTHORlTYIill will provide burn down control of the
following broadleaf weeds up to 3" and annual grasses up
to 1".
Annual grasses
Catchweed bedstraw
Deadnenle, red or purple
Henbit
Kochia
Lambsquarter
Small flower buttercup
Smartweed Pennsylvania
Smell melon
Speedwell, field and purslane
Star-of-Bethlehem
Waterhemp, common and tall
::~:fo~ burndown control ofDandeli~n, Ivi.restail,
"'!i:1'rickly~Iettuce,Gi.nt ragweed, Commonr.gweed~ .
:i'ifennycress, Smail-flowered Bittercre,s, Shepherd s
';i! purse and Tansym~stard, aMI pmt 2,4-.0 LYE, .
/'"Alternative1y;or in ad\litioD,Q.33 oz DuPont™
,i;"'CLASSIC@or.I-3'oz,.D"Ponf""CANOPY XL®
:'<may be added, to lmprov~ burnd(j~ ofthesew~eds
;:' (see SuppleIfI¢~taI1abeli!lg)., ·..E' ,.
" For.burndowjj controriif chlckweed,add"Sericor"o~ '"
" glyphosate-cQntainingb,erbicide. "
'>For burndown con!>OI, aPPly 3 to 5.3 oz
AUTHORlTY@ with:" .
: crop oil coricentrate at! % v/v (I gallon perlOO
. gallons of Spray mix),alld., .
',,,-' use flat fan no~es and ,ufficient water volume so
, .! as to thoroughly wet the weeds.
For burndown of larger than L" annua12rasses or
broadlear weeds exceeding 3", or for burndown of weeds
not listed above, AUTHORITY® may be tankmixed with
one or more of the following~
DuPolltD-( ASSURE):t II Giyphosate-contaitling products
2,4-0 (LVE)t registered lor soybeans
"Gramoxone Extra"
··Scncor·'
To select the proper tankmix product, identify the weeds wbich
need to be controlled and consul. lhc product labels to deter.mine
which product is needed. Consu;t the companion tankmix
herbicide label for lise instructioD::;, rates, precautions,
restrictions. and other use inronn~,tion.
For AL,HORlTY@tankmixeswithglyphosatc-eontaining,
herbicides, substitute 0.25% NIS for l% COCo The addition of I
to 2 percent dry ammonium sulfate by weight or 8.5 to 17 pOlmds
peT 100 gullons of water may increase performance.
t2,4-D (LVE) is the isoctyl (2-ethylhcxyl) ester of2,4-
Dichlorophcnoxyacetic acid. This product is sold lmder a
variety of trade names, It has a minimum preplant interval 01'7-
30 davs based on the rate used. Consult the label ofthc product
for sp~ci tic in tlmnation on thi~ lilterval.
4
AUTHORITY® + ASSURE® II TANKMIXES
FOR EARLY PRE-PLANT BURNDOWN OF
GRASSES IN SOYBEANS IN NO-TILL
AUTHORlTY® may be tankmixed withASSURE® 11 herbicide
or ASSURE® 11 + 2,4-0 (LVE) to provide early pre-plant
burndown control of small foxtails, bmnyardgrass, shattercane,
fall paniclUD, vohmleer corn, and wild proso millet.
For grass up to 3" in height, use 2.5 oz ASSURE@ II per
acre.
For grass >3" up to 5" in height, use 5 oz ASSURE'.llIII
per acre.
Timing of Applications
AUTHORlTY® + ASSlJRE® 11 tankmix may be applied
from no more than 30 days before planting up to just before
soybean emergence,
AUTHORlTY® + ASSURE® II + 2,4-0 (LVE) tankmix
may be applied between 7 days and no more than 30 days
belore planting, but no earlier than 30 days before planting,
depending on the rate of2,4-D (LYE) used.
Consult the 2,4-D label for the approprill'e pre-plant interval
based on tbe rate used.
To apply AUTHORITY@ + ASSURE® II tankmixes:
use flat fan nozzles only.
mllst include a petroleum based crop oil concentrate at a rate
of I gallon per 100 gallons of spray solution (I % viv),
an ammonium nitrogen fertilizer may be added but is not
required for peri'orrnancc.
PLANNED PROGRAM: reduced rate
preemergence followed by
postemergence - using directions of a
postemergence herbicide
REDUCED USE RATE
Early Pre-Plant, Preplant Incorporated, or
Preemergence
AUTHORlTY®m;.ybO~PP~~d'~~~~4iifed~u,ofJ()iJA·.'
for early season ~iilIttol ofl\l~~¢~~l!~~ b~ow. For tlil1: .J
season control ~fthes~ wee<W;J%:i\'\tI'!,iORJ:ry4'-""i~'
be followed byan applicatio~oI'Otie:~itiore.i' "i: .,
posternergence herbicides suCh ~ R~DtC.LASSI')<9,
DuPont™ SYNCHRONY® STS®;; J~JS5·.JRE®
·~~lexstar"t') "P~sui~'''::o~ 7~~~~1~:j;;m~i1l:::,i:;~; \:;:
"ROlmdup Ultra Max", or other glyphosate c'mtaining :'r0'h'ts
registered for soybeans may be used pxtcnorgenee aJ"" j 0:'
AUTHORITY®, if the soybeans are ":t,.L~Up Ready". P.ead
and follow the manufacturer's label for use instruCtiOlli, :<:tcs,
prcc<lutions, restrictions, and other use information,
. ---------- --,~-
APPLICATION TIMING
Three ounces of DuPontT'" AlJTHORITY'-Bo may be applied up
to 30 days before phmting, at planting, or after planting but
before soybean.'i emerge! unless othelwise specified on DuPont
supplemental labeling. Application after soybean plants emerge
will cause injury or death ofthe crop.
WEEDS CONTROLLED
Early Season control or suppression from 3 oz"ucre
AUTHORITY®:
Early Season Cgotrol
Black Nightshade
Carpenveed
Groundcherries, smooth and
c1amn.y (seedling only)
Kochia·
Lambsquarter**
Mominggloty, entireieaf,
ivyJeaf, tall, smallflower
Nightsr.ade, eastern black and
hairy
Pigweed**, redraot and
smooth
Palmer amaranth'"
Russiar ihistle
Waterhrmp"', common and
tall
Early Season Supnressiog
Biennial wormwood
Cocklebur
Copperleaf, hop hornbeam
Florida beggarweed
Jimsonweed
Marshelder
Mominggiory, pitted***
Prickly Sida
Purslane, common
Ragweed, common
Smartweed, Pennsylvania
Smellmelon
Velvetleaf
Venice Mallow
Wild buckwheat
Yellow nutsedge
Annual grasses
• indud~'s ALS ,md triazme resistant strains
.. inclu(!ts n'iazine resistant strains
••• Weed ~pel:ies which can getminate deep in the soil sUl:h as Pitted
Moml11gg10lY or other weeds which may emt!rge at various TIlnes
durint-: the growing '>cason. may require a cultivation or an
appliCl~ion of DuPontD1 CLASSIC® or DuPontD1
SY:-.JCHRON't'\\t, STS® herhicides for season long control.
ROTATIONAL GUIDELINES FOR ALL
A UTHORITY® APPLICATIONS
When USL:J as described. the table describes the minimum
length in months from the time of AUTHORlTY@
applicatiol\ until AUTHORITY@ treated soil can be
replanted :0 the crops listed in the table. Wnen a
recommended tank mix is used, consult the tankntix partner
labels [0'" recropping instructions and follow the directions
that at!.! must restrictive.
Crop
Soybeanss
Tobacco
Wheal, Bdrlev, Oats, Rye, Triticale
Field Corn *
Rice
Sorghum.
Alfalfa
Dry Deans
Recrop
Interval in ~onths
Anytime
Anytime
4
10
10
10
12
12
Other Cereal crops"'* 12
Cabbage, Clover, Cotton, Cucumber, Flax,
Lentils. Mllswrd. Peanuts". ...... , Pumpkin,
Sweet Com, vVatennelon 18t
Sugar Beets, CanDia (Carrot. Onion,
Potato), any olher crop not listed 30t
Field (\::"11 is d.eiined ll) include only malcom g:own for groin or
silag~. pup":l'm. and ~cctl':1ll11.
5
.. Other O .. 'I"Cal crops int:lude Buckwheat, Penrl ~finc:t, Proso Millet,
Teosinte, & Wild Rice.
.. " Soil pH must not exceed 7.0. The AlJTHORITY® rate must nat
exceed S oz in AL, AR, GA, LA, MS, or TX or 402 in DE, KY, MD,
MO (baotheel), NJ, NC. SC, TN, VA or WV. Ifchese COllclition!> are
nOl met, n:crop lO pear:ut~ is 30 months.
t Crops that have rotational intervals greater !.han 12 months after an
ACTHORITYot application nre the re!>ult of crop injury concern!>.
§ Do not feed treated soybean forage or soybean hay to livestock..
APPLICATION INFORMATION
Equipment/Spray Volumes
Ground Application: Apply unifonnly by groumd
equipment with a properly calibrated low pressure (20 to 40
psi) fixed-boom sprayer equipped with fan-type nozzles and
screens no fmer than 50 mesh. Use 10 to 40 gals of water
per acre.
Spray Tank Preparation
It is important that spray equipment is clean and free of
existing pesticide depnsits before using AUTHORITY®,
Follow the SPrJy tank cleanout procedures ~l'ecificd on the
label of product prevkusly sprayed. Tfno clean out
procedw'c is provided, follow the clcanout procedure in the
SPRAYER CLEANUP section of this label.
Mixing Instructions
I. Fill the tank 1/4 to 1/3 full of water,
2. Start agitation system, add AUTHORlTY® and continue
adding water.
3. AUTHORlTY® should be thoroughly mixed with
water in the spray lank before adding any other
material. As the tank is filling and after AUTHORlTY®
has dissolved, add (ill order): other herbicide(s), the
required spray adjuvant, and the nitrogen fertilizer where
required.
4. Apply AUTHORITY@ spray preparation within 24 hours
of mixing to avoid product degradation, settling ::x.c
difficulty in resuspchding.
5. Tfthe mixture has settled, thoroughly reagitatf'" hpfl)Te'
using.
PROPER HANDLING INSTR'.JC'fl( INS
This product may not be mixed or loadeu w,thin 5G feet olany
wells (including abandoned wells and dr.unage welts), s,r.!<
holes, perenniaJ or intermittent streams and -rivers, and natural or
impounded lakes and reservoil~. This setback does not apply to
properly capped or plugged abandoned wells and does not 'Pply
to impervious pad or properly diked mixingiloading areas.
Operations that involve mixing, loading. rinsing, 01 wdShiz.g of
this prodw.:t into or from pesticide handling or application
equipment or containers within 50 ft of any well are prohibited
unless conducted on an impervious pad constmcted to withstand
the weight of the heaviest load that may be positioned Oll or
mOI'cd across the pad. Such a pad shall bc designcd and
maintained to contain any product spills or equipment leaks,
container or equipment rinse Of wash-water, and rainwater that
may lilll on the pad. Surrace water shall not be allowed to either
flow over or from the pad; which means the pad must be self­
contained. The pad shall be sloped to facilitate material removaL
An unrooled pad shall be of sufficient capacity to contain at
least 110% of the capacity of the largest pesticide container or
application equiproent on the pad. A pad that is covered by a
roof of suflicient size to completely exclude precipitation from
coutact with the pad shall have a minimum containment
capacity or 100% of the capacity of the largest pesticide
container or application cquipmcnt on the pad. Containmcnt
capecities as described above shall be maintained at all times.
The above-specific minimum contairunent capacities do not
apply to vehicles when delivering pesticide shipments to the
mixinglloading site. States may have in effect additiona1
requirements regarding well-head setbacks and operational
containment.
Do not apply this product through any type of il1igation system.
Do not use flood illigation to apply or incorporate this product.
Product must be used in a manner that will prevent back
siphuning in wells, spills or improper disposal of excess
pesudde, spray mixtures or rin.~ates.
Sprayer Cleanup
To ovoid subsequent injury to desirable crops, thoroughly
c1ef~l all mixing and spray equipment immediately
following applications of DuPont™ AUTHORlTYQ!1 as
follows:'"
I. Drain tan.k; thoroughly hose down the interior surfaces of
tho tank.; then flush tank, boom, and hoses with clean
w~lter for a minimum of5 minutes.
2.Purtially fill the tank with water and add one of the
cltaning agents listed below. Complete filling the tank
with water, then flush the cleaning solution through the
b"om, hoses, and nozzles. Add water to completely fill
the tank and allow to agitate or recirculate for at least 15
minutes. Again, flush the boom, hoses and nozzles. and
dxain the tank.
3. Remove the nozzlcs and screens and clean separately in a
bucket containing water and the cleaning agent.
4. Repeat Step 2.
5. Thoroughly rinse the tank with clean water ror a
minimum of 5 minutes, flushing watcr through the boom
and hoses.
NOTE: Use any of the following cleaning agents. Carefully
read and follow the individual cleaning agent instructions.
I. One gallon of household ammonia (contains 3% active) per 100
gallons of water.
2. Nutra-Sol
3. Loveland Tank and Equipment Cleaner
4. Protank Cleaner
5. Chern-Tank Cleaner and Neutraliz.er
6. Indde-Out
7. Tank-Aid
.. A slcam cleaning of fiberglass or stainless steel <H .. nlll spray tanks is
recommended prior LO performing the abov(! Ck:Ulout procedure to
faci!ilnte the removal of any caked deposits.
6
SPRAY DRIFT MANAGEMENT
The interaction of many equipment and weather-related
factors detemtiues the potential for apray drift. The
applicator is responsible for considering all these factors
when making application decisions.
AVOIDING SPRAY DRIFT IS THE RESPONSIBILITY
OF THE APPLICATOR.
IMPORTANCE OF DROPLET SIZE
The most effective way to reduce drift potential is to apply
large dioplets (> 150 - 200 microns). The best drift
management strategy is to apply the largest droplets that
provide sufficient coverage and control. The presence of
sensitive species nearby, the environmental conditions, and
pest pressure may affect how an applicator balances drift
control and coverage. APPLYING LARGER DROPLETS
REDUCES DRIIT POTENTIAL, BUT WILL NOT
PREVENT DRIl'T IF APPLICATIONS ARE MADE
IMPROPERLY OR UNDER UNFAVORABLE ENVIRON­
MENTAL CONDITIONS! See Wind, Temperature and
Humidity, and Temperature Inversions sections of this
label.
ContrOlling Droplet Size - General Techniques
Volume - Use high flow rate nozzles to apply the highest
practical spray volume. Nozzles with higher rated flows
produce larger droplets.
.Pressure - Use the lower spray pressures recommended
for the nozzle. Higher pressure reduces droplet size and
does not improve canopy penetration. WHEN HIGHER
FLOW RATES ARE NEEDED, USE A HlGHER­
CAPACITY NOZZLE INSTEAD OF INCREASING
PRESSURE.
Nozzle Type - Uae a nozzle type that is designed for the
intended appli.cation. With most nozzle types, narrower
spray angles produce larger droplets. Consider using low­
drift nozzles.
BOOM HEIGHT
Setting the boom at the lowest labeled height (if specified)
which provides uniform coverage reduces the exposure of
droplets to evaporation and wind. For ground equipment,
the boom should remain level with the crop and have
minimal bounce.
WIND
Drift potential increases at wind speeds ofless fum 3 mph
(due to inversion potential) or mor~:I.1Jl W mph. Hewever,
many factors, including droplet sii~ and ,~uipmcr.t ty~e
determine drift potential at any gi''''' wwJ spee~. N,'OID
GUSTY OR WINDLESS CONDmO;.3.
Note: Local terrain can influence'wi;'u p,ttems. i.;cry
applicator should be familiar with 10Cai wind pattern:. and
how they affect spray drift.
TEMPERATURE AND HUMIDITY
When making applications in hot and dry conditions, set up
equipment to produce larger droplets to reduce effects of
evaporation.
~II
TEMPERATURE INVERSIONS
Drift pokntiul is high during a temperature inversion.
Temperature inversions restrict vertical air mixing, which
causes small suspended droplets to remain close to the
ground and move laterally in a concentrated cloud.
Temperature inversions are characterized by increasing
temperature with altitude and are common on nights with
limited cloud cover and light to no wind. They begin to
fann as the sun sets and often continue into the morning.
Their presence can be indicated by ground fog; however, if
fog is not present, inversions can also be identified by the
movement of smoke from a ground source or an aircraft
smoke generator. Smoke that layers and moves laterally in
a concentrated cloud (under low wind conditions) indicates
an inversion, while smoke that moves upward and rapidly
dissipates indicates good vertical air mixing.
SHIELDED SPRAYERS
Shielding the boom or individual noz.zles can reduce the
effects of wind. However. it is the responsibility of the
applicator to verify that the shields are preventing drift and
not interfering with unifoml deposition of the product.
AIR ASSISTED GROUND
FIELD CROP SPRAYERS
Air assisted field crop sprayers carry droplets to the target
via a downward directed air stream. Some may reduce the
potential for drift, but if a sprayer is tffisuitable for the
application and/or set up improperly, high drift potential can
result. It is the responsibility of the applicator to detennine
that a sprayer is suitable ror the intended application, is
configured properly. and that drift is not occurring.
Note: Air assisted field sprayers can affect product
perfommnce by affecting spray coverage and canopy
penetration. Consult the application equipment section of
this label to dctcnnine if usc of an air assisted sprayer is
recommended.
RESISTANCE MANAGEMENT
When herbicides with the same mode afaction arc used
repeatedly over several years to control the same weed
species in the same field, naturally-occurring resistant weed
biotypes may survive a correctly applied herbicide
treatment, propagate, and become dominant in that field.
These resistant weed biotypes may not be adequately
controlled. Cultural practices such as tillage. preventing
weed escapes from going to seed, and using herbicides with
different modes of action within and between crop seasons
can aid in delaying the proliferation and possible dominance
of herbicide resistant weed biotypes.
7
INTEGRATED PEST MANAGEMENT
DuPont recommends the usc of Integrated Pest Managemeot
(IPM) pro grants to control pests. This product may be used
as part of an Integrated Pest Management (IPM) program
that can include biological, cultural. and genetic practices
aimed at preventing economic pest damage. Application of
this product should be based on IPM principles and
practices including field scouting or other detection
methods, correct target pest identification, population
monitoring, and treating wheo larget pest populations reach
locally detennined action thresholds. Consult your state
cooperative extension service, professional consultants or
other qualified authorities to detennine appropriate action
treatment threshold levels for treating specific pest/crop or
site systems in your area.
IMPORTANT PRECAUTIONS
1. Because most crops are highly sensitive to DuPontnt:
AUTHORlTY®, all direct or indircct contact (such as
spray drift) to crops or to land scheduled to be planted to
crops other than soybeans should be avoided.
, Do not apply AUTHORITY@ifthere are visible signs
of cracking due to soybean emergence, or serious crop
injury may result.
3 Seedling disease, nematodes, cold weather, deep
planting (more than 2"), excessive moisture, high salt
concentration, or drought may weaken soybean
seedlings and increase the possibility of crop injury.
STORAGE AND DISPOSAL
Storage: Store product in original container only. Do
not contaminate water, other pesticides. fertilizt.'1", food
or feed in storage. Store in a cool, dry place.
Product Disposal: Do not contaminate water. food, or
feed by disposal. Waste resulting from the use of this
product may be disposed of on site or at an approved
waste disposal facility.
Container Disposal: For Plastic Containers: Triple
rinse (or equivalent). Then offer for recycling or
reconditioning, or puncture and dispose of in a
sanitary landfill, or incineration, or, if allowed by State
and local authorities, by burning. Ifburned, stay out of
smoke. For Fiber Sacks: Completely empty fiber
sack by shaking and tapping sides and bottom to
loosen clinging particles. Empty residue into manufac­
turing or application equipment. Then dispose of sack
in • sanitary landfill or by incineration if allowed by
State and local authorities. For Fiber Drums With
Liners: Completely empty liner by shaking and
tapping sides and bottom to loosen clingine particles.
Empty residue into application equipment. Then
dispose of liner in a sanitary landfill or by incineration
if allowed by State and local authorities. If mum is
contaminated and cannot be reused, dispos!: of in the
same maoner. For Bags Containing Water Soluble
Packets! Do not reuse the outer box or the resealable
plastic bag. When all water-soluble packet' are used,
the outer packaging should be clean and mol' be
disposed of in a sanitary landfill or by incineration, or
if allowed by State and local authorities, by open
burning. If burned, stay out of smoke. If tho resealable
plastic bag contacts the fonnulated product in any
way, the bag must be triple~rinsed with clear} water.
Add the riosate to the spray tank and dispos" of the
outer wrap as described above. For Metal Containers
(non aerosol): Triple rinse (or equivalent) the
container. Then offer for recycling or reconditioning,
or puncture and dispose of in a sanitary landfill, or by
other procedures approved by State and local
authorities. For Paper aud Plastic Bags: Completely
empty bag into application equipment. The". dispose
of empty bag in a sanitary landfill or by incineration,
or, if allowed by State and local authorities, by
burning. If burned, stay out of smoke.
8
NOTICE TO BUYER: Purchase of this material does not
confer any rights under patents of countries outside of the
United States.
The DuPont Oval Logo, DuPont"', ASSURE®,
CANOPY XL®, CLASSIC® and SYNCHRONY® STS®
are tradenlarks or registered trademarks ofE. I. duPont de
Nemours & Company
AUfHORITY® is a registered aadcmark of FMC Corp.
"Lasso" and "Roundup Ready". "Roundup Ultra Max" are registered
trademarks of Monsanto Company
"Boundary'" "Dual" and "Gramoxone" are registered trademarks of
Syngenta Crop Protection Inc.
"Sencar" is a registered trademark of Bayer Crop Protection
"Sonolan" and "Trcflan" are registered trademarks of Dow AgroScicnce<:
"Frontier" and "Prowl" arc regisleI'ed trademarks ofBASF Corporation
"Command" is a registered trademark of FMC Corp.
Nutrn-Sol is compounded for Thomas G. Kilfoil Co., Inc.
Loveland Tank and Equipment Cleaner is a trademark of Loveland
Industries, Inc.
Protank Cleaner is monufactured for CcneXll.and '0 Lakes Agronomy Co.
Chem-Tank Cleaner and Neutrulizer manufactured by Farmbelt ChemicalS,
Inc.
Incidc-Out is a trademark of Precision Laboratories, Inc.
Tank-Aid i~ rnanufal..1urcd for Combclt Cbc!mical Co.
D - 797101501
LIMITATION OF
WARRANTY AND LIABILITY
NOTICE: Read This Limitation of Warranty and
Liability Before Buying or Using This Product. If the
Tenns Are Not Acceptable, Return the Product at Once,
Unopened, and the Purchase Price Will Be Refunded.
It is impossible to eliminate all risks associated with the
use of this product. Such risks arise from weather
conditions, soil factors, off target movement, unconven­
tional fanning techniques, presence of other materials,
the manner of use or application, or other unknown
factors, all of which are beyond the control of DuPont.
These risks can cause: ineffectiveness of the product;
crop injury, or; injury to non-target crops or plants.
DuPont does not agree to be an insurer of these risks.
WHEN YOU BUY OR USE THIS PRODUCT, YOU
AGREE TO ACCEPT THESE RISKS.
DuPont warrants that this product conforms to the
chemical description on the label thereof and is
reasonably fit for the purpose stated ill the Directions for
Use, subject to the inherent risks desclibed above, when
used in accordance with the Directions for Use under
normal conditions.
DUPONT MAKES NO OTHER EXPllESS OR
IMPLIED WARRANTY OF FITNESS OR OF
MERCHANTABILITY OR ANY OTHER EXPRESS
OR IMPLIED WARRANTY.
IN NO EVENT SHALL DUPONT OR SELLER BE
LIABLE FOR ANY INCIDENTAL,
CONSEQUENTIAL OR SPECIAL DAMAGES
RESULTING FROM THE USE OR HANDLING OF
THIS PRODUCT. BUYER'S OR USER'S
BARGAINED-FOR EXPECTATION IS CROP
PROTECTION. THE EXCLUSIVE REMEDY OF THE
USER OR BUYER AND THE EXCUISIVE
LIABILITY OF DUPONT OR SELLER, FORANY
AND ALL CLAIMS, LOSSES, INJURIES OR
DAMAGES (INCLUDING CLAIMS BASED ON
BREACH OF WARRANTY OR CONTRACT,
NEGLIGENCE, TORT OR STRICT LIABILITY),
WHETHER FROM FAILURE TO PERFORM OR
INJURY TO CROPS OR OTHER PLANTS, AND
RESULTING FROM THE USE OR HANDLING OF
THIS PRODUCT, SHALL BE THE RETURN OF THE
PURCHASE PRICE OF THE PRODUCT, OR AT THE
ELECTION OF DUPONT OR SELLER, THE
REPLACEMENT OF THE PRODUCT
DuPont or its Ag Retailer must have prompt notice of
any claim so that an immediate inspection of buyer's or
users growing crops can be made. Buyer and all users
shall promptly notify DuPont or a DuPont Ag Retailer of
any claims, whether based on contract, negligence, strict
liability, other tort or otherwise or be barred from any
remedy.
This Limitation of Warranty and Liability may not be
amended by any oral or written agreement.
For product information call: 1-888-6-DUPONT
Internet address: www.dupont.com/aglul
,
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· . • •
© 1998-2001 E. I. du Pont de Nemours and Company, Crop Protection, WIlmlDgton, Delaware 19898.
All rights reserved.
9