crop-chem-docs/corpus/epa_ppls/352-843.md

# DUPONT LEADOFF (MP) HERBICIDE

- EPA Reg No: **352-843**
- Registrant: CORTEVA AGRISCIENCE, LLC
- Signal word: Caution
- Active ingredients: Thifensulfuron (50%); Rimsulfuron (25%)
- Label accepted: 2010-12-30
- Source PDF: https://www3.epa.gov/pesticides/chem_search/ppls/000352-00843-20101230.pdf

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u.s. Environmental Protection Agency 
Office of Pesticide Programs 
Registration Division (7505P) 
1200 Pennsylvania Ave., N.W. 
Washington, D.C. 20460 
NOTICE OF PESTICIDE: 
(under FIFRA, as amended) 
X Registration 
_ Reregistration 
Name and Address of Registrant (include ZIP Code): 
E.!. du Pont de Nemours & Company 
1007 Market Street 
~UUU~5"VU, DE 19898 
==~~~~~~~~~~ 
EPA Reg. 
Number: 
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352-843 
Date of Issuance: 
OEL 3D 2010 
Term ofIssuance: Unconditional 
Name of Pesticide Product: 
Dupont Leadoff (mp) 
Herbicide 
On the basis of information furnished by the registrant, the above named pesticide is hereby registered/reregistered under the Federal Insecticide, 
Fungicide and Rodenticide Act. 
Registration is in no way to be construed as an endorsement or recommendation of this product by the Agency. In order to protect health and the 
environment, the Administrator, on his motion, may at any time suspend or cancel the registration of a pesticide in accordance with the Act. The 
acceptance of any name in connection with the registration of a product under this Act is not to be construed as giving the registrant a right to 
exclusive use of the name or to its use if it has been covered by others. 
This product is unconditionally registered in accordance with FIFRA section 3(c)(5) provided you 
agree in writing to: 
1. Submit and/or cite all data required for registration review/reregistration of your product 
when the Agency requires all registrants of similar products to submit data. 
2. Revise the EPA Registration Number from 352-XXX to 352-843 on the label. 
3. Add an appropriate EPA Establishment Number to the label. 
4. Add a box around the Use statements 
Signature of Approving Official: Date: 
DEC ') ,. 
GEe 3 0 2010 
EPA Form 8570·6

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Page 2 
EPA Reg. No. 352-843 
Note: Each compartment of the co-pack packaging must be identified by either "Component A" or 
"Component B" or the associated Ingredient Statement for that component. 
The basic formulation CSF [dated December 1, 2010] of the product referred to above, 
submitted in connection with registration under the Federal Insecticide, Fungicide, and Rodenticide 
Act is acceptable. The basic CSF will be added to your file. 
You will submit one (l) copy of your final printed labeling before you release the product 
for shipment. If these conditions are not complied with, the registration will be subject to 
cancellation in accordance with FIFRA section 6(e). A stamped copy of labeling is enclosed for 
your records. If you have any questions, please contact Hope Johnson t 703-305-5410. 
u. ~ 
~
l~ Tompkins 
. Pro~tct Manager (25) 
Herb cide Branch 
e~tration Division (7505P)

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<[UPON~ 
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H _ l t 
DuPont™ LeadOrr
M 
(mp) 
herbicide 
DRAFT LABEL

ACCbl'ltU 
( with COMMENTS 
in EPA Letter Dated ( 
~;:c J [) 2010 
<[OPO~ 
Under the Federal Insecticide, 
fungicide, and Rodenticide. ~ct 
as amended, for the pesticIde 
register,=d under EPA Reg. No. 
DuPont™ 35~-~'-t3 
Leadoff
M 
(mp) 
herbicide 
For preplant and preemergence weed 
control in field corn 
Component A 
... A ... c ... ti .... ve ...... Tn ... flO'Tul! ... d""ie""n .. t---,,....-_-------- ....... 'b' Weight 
Rimsulfuron 
N-«4,6-dimethoxypyrimidin-2-yl) 
aminocarbonyl)-3-(ethylsulfonyl)-
2-pyridinesulfonamide 
Other Ingredients 
TOTAL 
ComponentB 
25.0% 
75.0% 
100.00% 
A;.;;;.;;..cti;.;..·v;..;e;..;I;;.;.n;.gg"-r.;;.;ed;;.;i.;;.;en;.;.;t'--_________ ~By Weight 
Thifensulfuron-methyl 
MethyI3-[[[[(4-methoxy-6-methyl-l,3, 
5-triazin-2-yl) amino]carbonyl]amino] 
sulfonyl]-2-thiophenecarboxylate 
Other Ingredients 
TOTAL 
50.0% 
50.0% 
100.00% 
EPA REG. NO. 352-XXX 
Nonrefillable Container 
EPA Est. No. ___ _ 
Net: 40 oz. Component A and 20 oz. Component B 
KEEP OUT OF REACH OF CHILDREN 
CAUTION. 
FIRST AID 
IF IN EYES: Hold eye open and rinse slowly and gently 
with water for 15-20 minutes. Remove contact lenses, if 
present, after the first 5 minutes, then continue rinsing eye. 
Call a poison control center or doctor for treatment advice. 
IF ON SKIN OR CLOTHING: Take off contaminated 
clothing. Rinse skin immediately with plenty of water for 
15-20 minutes. Call a poison control center or doctor for 
treatment advice. 
IF SWALLOWED: No specific intervention is indicated 
as the compound is not likely to be hazardous by 
ingestion. However, consult a poison control center or 
doctor if necessary. 
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 emergency 
medical treatment information. 
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PRECAUTIONARY STATEMENTS 
HAZARD TO HUMANS 
AND DOMESTIC ANIMALS 
CAUTION! Avoid contact with skin, eyes, or clothing. 
Wash thoroughly with soap and water after handling and 
before eating, drinking, chewing gum, or using tobacco. 
PERSONAL PROTECTIVE EQUIPMENT (PPE) 
Some of the 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
resistant category selection chart. 
Applicators and other handlers must wear: 
Long-sleeve shirt and long pants. 
Chemical resistant gloves Category A (such as butyl 
rubber, natural rubber, neoprene rubber, or nitrile 
rubber), all > 14 mils. 
Shoes plus socks. 
Follow manufacturer's instructions for cleaning/maintaining 
PPE. If no such instructions for washables exist, use 
detergent and hot water. Keep and wash PPE separately 
from other laundry. 
Engineering Control Statement: When handlers use closed 
systems, enclosed cabs, or aircraft in a manner that meets the 
requirements listed in the Worker Protection Standard (WPS) 
for agricultural pesticides [40 CFR 170.240( d)( 4-6)], the 
handler PPE requirements may be reduced or modified as 
specified in the WPS. 
Important: When reduced PPE is worn because closed system 
is being used, handlers must be provided all PPE specified 
above for "Applicators and Other Handlers" and have such 
PPE immediately available for use in an emergecy, such as a 
spill or equipment breakdown. 
USER SAFETY RECOMMENDATIONS 
USERS SHOULD: Wash hands before eating, drinking, 
chewing gum, using tobacco or using toilet. Remove 
clothinglPPE immediately if pesticide gets inside. Then wash 
thoroughly and put on clean clothing. Remove PPE 
immediately after handling this product. Wash the outside of 
gloves before removing. As soon as possible, wash 
thoroughly and change into clean clothing. 
ENVIRONMENTAL HAZARDS 
Do not apply directly to water, or to areas where surface 
water is present, or to intertidal areas below the mean high 
water mark. Do not contaminate water by cleaning of 
equipment or disposal of wastes. Do not apply where/when 
conditions favor runoff.

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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 directly 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 
in your State responsible for pesticide regulation. 
AGRICUL TURAL USE REQUIREMENTS 
Use this product only in accordance with its labeling and 
with the Worker Protection Standard, 40 CPR part 170. 
This Standard contains requirements for the protection of 
agricultural workers on farms, forests, nurseries, and 
greenhouses, and handlers of agricultural pesticides. It 
contains requirements for training, decontamination, 
notification, and emergency assistance. It also contains 
specific instructions and exceptions pertaining to the 
statements on this label about 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 4 hours. 
PPE required for early entry to treated areas that is 
permitted under the Worker Protection Standard and that 
involves contact with anything that has been treated, such 
as plants, soil, or water, is: 
Coveralls. 
Chemical resistant gloves Category A (such as butyl 
rubber, natural rubber, neoprene rubber, or nitrile 
rubber), all> 14 mils. 
Shoes plus socks. 
PRODUCT INFORMATION 
DuPont™ LEADOfFT M (mp) herbicide is packaged in a 
convenient unit area package. After opening the package, 
empty the enitre contents of both compartments into the 
spray tank. LEADOFFTM (mp) herbicide must be used only 
in accordance with instructions on this label or in 
supplemental DuPont publications. DuPont will not be 
responsible for losses or damage resulting from use of this 
product in any manner not specifically specified by DuPont. 
LEADOFF (mp) herbicide is a co-pack containing the 
active ingredients rimsulfuron and thifensulfuron-methyl. 
LEADOFFTM (mp) is a selective herbicide for bumdown and 
residual control of certain annual grass and broadleaf weeds 
when applied preplant or preemergence to field com. 
Residual weed control is dependent on rainfall or sprinkler 
irrigation for herbicide activation. LEADOFF (mp) 
herbicide may be applied in tank mixtures with other 
herbicides labeled for use in the intended crop. However, in 
the case of tank mixes with other herbicides, the most 
restrictive label must be followed. 
LEADOFF (mp) is absorbed through the roots of plants, 
rapidly inhibiting the growth of susceptible weeds. Rainfall 
or sprinkler irrigation is needed to move LEADOFFTM (mp) 
into the soil. Susceptible weeds will generally not emerge 
from pre emergence application. In some cases susceptible 
weeds may germinate and emerge a few days after 
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application, but growth then ceases and leaves become 
chlorotic three to five days after emergence. Death of leaf 
tissue and growing point will follow in some species, while 
others will remain green but stunted and noncompetitive. 
The herbicidal action ofLEADOFFTM (mp) may be less 
effective on weeds stressed from adverse environmental 
conditions (such as extreme temperatures or moisture), 
abnormal soil conditions, or cultural practices. 
Consult with your local DuPont representative or the 
DuPont Label Web Site (http://cropprotection.dupont.com/) 
for any additional supplemental labeling information 
relative to potential com hybrid sensitivity to LEADOFFTM 
(mp). 
APPLICATION INFORMATION 
Field Corn - Preplant-Preemergence 
Rate 
Apply LEADOfFT M (mp) at 1.5 - 2.5 ounces product per acre. 
DuPont specifies a use rate of 1.5 ounces product per acre for most 
applications. Consult DuPont technical bulletins for 
additional application information. See cumulative rimsulfuron rate 
limitations noted in this label. 
Unit Area Pack 
LEADOFFTM (mp) herbicide is a unit area pack herbicide that is 
used at the rate of 1.5 - 2.5 ounces product per acre per application. 
One 60 ounce unit area pack will treat 40 - 24 acres at the 
1.5 - 2.5 ounces product per acre application rate. 
Timing to Crop 
LEADOFF (mp) may be applied preplant after fall 
harvest through early spring, up to planting, whenever the 
ground is not frozen, to control emerged weeds and to 
provide limited residual control of early-emerging spring 
weeds. 
Additionally, LEADOFFTM (mp) may be applied anytime 
after planting, but before com emer&ence. 
Control of emerged weeds will requITe the addition of spray 
adjuvants as noted in this label. 
Sequential Application 
LEADOFFTM (mp) may be used as a sequential herbicide 
program in com. Apply LEADOFFTM (mp) for bumdown 
and residual weed control, followed by a post, in-crop 
application of DuPont™ RESOL VE® Q or DuPont™ 
STEADFAST® Q herbicides. Refer to the appropriate 
product label for use restrictions, application information, 
rotational crop guidelines, and cautionary statements prior 
to application. 
Additional Control of Grasses and Broadleaves 
LEADOFF (mp) may be tank mixed with full or reduced 
rates of labeled preplantipreemergence grass and broadleaf 
herbicides such as atrazine, DuPont™ CINCH® brands and 
DuPont™ BREAKFREE® brands to provide added residual 
activity or bumdown activity on emerged weeds. Sequential 
applications of DuPont™ PREQUEL®, CINCH® brands 
and BREAKFREE® brands may also be made following 
preplant applications of LEADOFFTM (mp). Consult tank 
mix partner labeling for rate and soil-type restrictions.

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SPRAY ADJUVANTS 
For control of emerged weeds, application of LEADOFfTM 
(mp) must contain an appropriate adjuvant. If applied in 
tank mix combination with a glyphosate or glufosinate 
herbicide that contains a built-in adjuvant system, no 
additional surfactant needs to be added. Consult local 
DuPont fact sheets, technical bulletins, and service policies 
prior to using other adjuvant systems. Products must contain 
only EPA-exempt ingredients (40 CFRlOOl. 
Petroleum Crop Oil Concentrate (COC) or Modified 
Seed Oil (MSO) . 
• Apply at 1 % v/v (1 gallon per 100 gallons spray solution) 
or 2% under arid conditions. 
• MSO adjuvants may be used at 0.5% v/v (0.5 gallon per 
100 gallons spray solution) if specifically noted on 
adjuvant product labeling. 
• Oil adjuvants must contain at least 80% high quality, 
petroleum (mineral) or modified vegetable seed oil with 
at least 15% surfactant emulsifiers. 
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Nonionic Surfactant (NIS) 
• Apply at 0.25% v/v (l qt per 100 gal spray solution). 
• Surfactant products must contain at least 60% nonionic 
surfactant with a hydrophilic/lipophilic balance (HLB) 
greater than 12. 
Ammonium Nitrogen Fertilizer 
In addition to a spray adjuvant, an ammonium nitrogen 
fertilizer may be used. 
• Use 2 qt/acre of a high-quality urea ammonium nitrate 
(UAN) such as 28%N or 32%N, or 2lb/acre of a spray­
grade ammonium sulfate (AMS). 
Special Adjuvant Types 
• Combination adjuvant products may be used at doses that 
provide the required amount of NIS and ammonium 
nitrogen fertilizer. Consult product literature for use rates 
and restrictions. 
WEEDS CONTROLLED/SUPPRESSED 
Preplant/Preemergence Tank Mixtures 
LEADOFFM Cmp) may be tank mixed with glyphosate, 
paraquat, glufosinate, 2,4-D L VE, and dicamba herbicides for 
improved control of the following emerged weed species 
when applied preplant or preemergence. 
Alfalfa,volunteer 
Barley, volunteer 
Bamyardgrass 
Bluegrass, annual 
Canada thistle 
Chamomile, false 
Chickweed, common 
Cocklebur 
Crabgrass 
Dandelion (6" diameter) 
Filaree, redstem 
Foxtail (bristly, giant, green, yellow) 
Henbit 
Johnsongrass, seedling 
Kochia 
Lambsquarters, common 
Marestail (Horseweed) 
Millet, wild proso 
Momingglory, ivyleaf 
Mustard (birds rape, black, wild) 
Nightshade, hairy 
Panicum, fall 
Pigweed (prostrate, redroot, smooth) 
Purslane, common 
Quackgrass 
Ragweed, common 
Ryegrass, Italian 
Sandbur (field, longspine) 
Shepherd's purse 
Signal grass, broadleaf 
Smartweed, Pennsylvania 
Stinkgrass 
Velvetleaf 
Wheat, volunteer 
Wild buckwheat 
Wild oat 
Wild radish 
Yellow nutsedge

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Burndown Control- DuPont™ LEADOFFTM (mp) Alone 
Grasses (1 - 2")* 
Barley, volunteer 
Barnyardgrass 
Bluegrass, annual 
Crabgrass, large (112") 
Cupgrass, woolly (I") 
Foxtail (bristly, giant, green, yellow) 
Johnsongrass, seedling* 
Millet, Wild Proso* 
Panicum, fall 
Quackgrass* 
Ryegrass, Italian * 
Shattercane (4") 
Signalgrass, broadleaf* 
S tinkgrass '" 
Wheat, volunteer 
Wild oat* 
Yellow nutsedge* 
Broadleaves (1 - 3")* 
Alfalfa, volunteer 
Canada thistle* 
Chickweed, common 
Cocklebur'" 
Dandelion (6" diameter) 
Henbit 
Kochia 
Lambsquarters, common* 
Morningglory, ivyleaf* 
Mustard, (birdsrape, black, wild) 
Nightshade, hairy* 
Pigweed, (prostrate, redroot, smooth) 
Purslane, common* 
Ragweed, common* 
Shepherd's purse 
Smartweed, Pennsylvania* 
Velvetieaf 
Wild radish 
* Partial control/suppression 
Residual Control- LEADOFFTM (mp) Alone 
Grasses 
Barnyardgrass 
Bluegrass, annual * 
Crabgrass, large* 
Foxtail (bristly, giant, green, yellow) 
Panic urn, fall * 
Signalgrass, broadleaf 
Wheat, Volunteer 
WildOat* 
* partial control/suppression 
Broadleaves 
Carpetweed* 
Chamomile, false 
Cocklebur* 
Filaree, Redstem 
Henbit 
Jimsonweed* 
Kochia (ALS-sensitive) 
Lambsquarters, common 
Marestail (Horseweed) 
Morningglory, ivyleaf* 
Mustard (birdsrape, black) 
Nightshade* (hairy, black) 
Palmer amaranth* 
Pigweed (prostrate, redroot, smooth) 
Purslane, common 
Ragweed, common* 
Russian thistle, seedling* 
Smartweed, Pennsylvania* 
Velvetleaf'" 
* Partial control/suppression 
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Mixing Instructions 
Fertilizer Carrier Instructions 
LEADOfFT M (rnp) may be mixed with water or pre-dissolved 
in water and added to liquid fertilizer for preemergence 
application. When using liquid fertilizer as the carrier, always 
pre-slurry LEADOfFT M (mp) in water before adding fertilizer 
solutions. Add the LEADOFFTM (mp) slurry to the final 
complete liquid fertilizer mixture - do not add LEADOfFT M 
(mp) during the fertilizer mixing process. 
Always use good agitation while adding the LEADOfFT M 
(mp) slurry to liquid fertilizers and maintain good agitation 
until sprayed. When using liquid fertilizer as the carrier, 
conduct a compatibility test with all components prior to 
mixing. 
Do not use with spray additives or liquid fertilizer carriers that 
alter the pH of the spray solution below pH 5.0 or above pH 
9.0 as rapid product degradation can occur. Spray solutions of 
pH 6.0 -8.0 allow for optimum stability of LEADOfFT M 
(mp). 
Water Carrier Instructions 
I. Fill the tank 114 to 113 full of water. 
2. While agitating, add the required amount of LEADOfFT M 
(mp). 
3. Continue agitation until the LEADOFFTM (mp) is fully 
dispersed, at least 5 minutes. 
4. Once the LEADOfFT M (mp) is fully dispersed, maintain 
agitation and continue filling tank with water. 
LEADOfFT M (mp) should be thoroughly mixed with water 
before adding any other material. 
5. As the tank is filling, add tank mix partners (if desired). 
6. If the mixture is not continuously agitated, settling will 
occur. If settling occurs, thoroughly re-agitate before using. 
7. Apply LEADOfFT M (mp) spray mixture within 48 hours 
of mixing to avoid product degradation. 
If the selected companion herbicide has a ground or surface 
water advisory, consider this advisory when using the 
companion herbicide. 
Tank Mix Compatibility Testing 
Perform a jar test prior to tank mixing to ensure compatibility 
of LEADOFFTM (mp) and other pesticides. Use a clear quart 
jar with lid and mix the tank mix ingredients in their relative 
proportions. Invert the jar containing the mixture several 
times and observe the mixture for approximately 1 hour. If the 
mixture balls-ups, forms flakes, sludge, gel, oily film or 
layers, or other precipitates, it is not compatible and the tank 
mix combination should not be used. 
Broadcast Application 
Use a minimum of 15 gallons of water per acre (GPA) to 
ensure thorough coverage of the weeds and the best 
performance. Use a minimum of 10 GPA for light, scattered 
stands of weeds. For best performance, select nozzles and 
pressure that deliver MEDIUM spray droplets, as indicated, 
for example, by ASAE Standard S572. Nozzles that deliver 
COARSE spray droplets may be used to reduce drift, 
provided spray volume is increased to maintain coverage on 
small weeds. 
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For optimal product performance and minimal spray drift, 
adjust the spray boom to the lowest possible spray height 
recommended in manufacturers' specifications 
Aerial Application 
Use nozzle types and arrangements that will provide optimum 
spray distribution and maximum coverage at a minimum of 5 
GPA. 
Do not apply during a temperature inversion, when winds are 
gusty, or when conditions favor poor coverage and/or 
off target spray movement. 
Do not apply this product using aerial application in the State 
of New York. 
RESTRICTIONS/PRECAUTIONS 
• Do not apply to field com grown for seed, to popcorn, 
or to sweet corn. 
• Limit preemergence rates to 1.875 ounces LEADOFfT M (mp) 
(0.02 lbs. rimsulfuron) iffollowing with a postemergence 
application of a different product containing rimsulfuron. 
• Allow at least 60 days between preplant or preemerge 
application ofLEADOFfTM(mp) and application of 
organophosphate insecticide such as "Counter" since 
crop injury may result. 
• Allow at least 3 weeks between preemergence 
applications ofLEADOFfTM(mp) and 
postemergence applications of rimsulfuron containing 
products, such as DuPont™STEADF AST®Q, or 
DuPont™RESOL VE®Q 
• A cumulative total of 0.5 oz active rimsulfuron from 
all sources may be applied to field corn iri a single 
crop year. This includes combinations of preplant and 
preemergence applications ofLEADOFfTM(mp) and 
DuPont™PREQUEL®, as well as rimsulfuron from 
postemergence application(s) of products such as 
STEADFAST®Q or RESOL VE®Q. 
• Do not apply preemergence on corn when planted to coarse­
textured soils (sand, loamy sand or sandy.loam) with less 
than 1 % organic matter. 
• Do not apply postemergence to any crop. 
• Crop injury may occur following an application of 
LEADOFfTM(mp) if there is a prolonged period of cold 
weather and/or in conjunction with wet soils. 
• Do not graze, feed forage, grain or fodder (stover) from 
treated areas to livestock within 30 days ofLEADOFfT M 
(mp) application. 
• Do not make more than one preplant or at planting 
application to com. 
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Injury or loss of desirable trees or vegetation may result from 
failure to observe the following: 
- Do not apply LEADOFfT M (mp) or drain or flush 
application 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 washed or moved into 
contact with their roots. 
- Do not use on lawns, walks, driveways, tennis courts, or 
similar areas.-Prevent drift or spray to desirable plants. 
- Do not contaminate any body of water. 
- Thoroughly clean application equipment immediately after 
use. 
- (See Sprayer Cleanup section of this label for instructions). 
Soil Insecticide Interaction Information 
• LEADOFfTM(mp) may interact with certain insecticides 
applied to corn. Crop response varies with field crop, 
insecticide used, insecticide application method, and soil 
type. 
• LEADOFfTM(mp) may be applied to crops previously 
treated with "Fortress", "Aztec", or "Force" insecticides or 
other nonorganophosphate (OP) soil insecticides regardless 
of soil type. 
• PreplantiPreemergence applications ofLEADOFfTM(mp) 
to corn where an application of "Lorsban" , or "Thimet" is 
planned may cause unacceptable crop injury, especially on 
soils of less than 4% organic matter.

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ROTATIONAL CROP GUIDELINES 
The following rotational intervals should be observed: 
1.5 OZ PRODUCT MAXIMUM USE RATE 
Rotation Crop Interval (months) 
Com, field Anytime 
Potatoes Anytime 
Tomato 1 
Cereals, Winter (wheat) 4 
Cereals, Spring (wheat, oats, barley) 9 
Alfalfa IO 
Cotton 1 
Canola IO 
Cucumber IO 
Flax IO 
Peas IO 
Rice 10 
Red Clover 10 
Sorghum IO 
Com, pop or sweet IO 
Soybeans 10 
Sulfonylurea Tolerant Soybean (STS) 
Snap beans, dry beans IO 
Sunflower IO 
Sugarbeets IO 
Crops Not Listed 18 
2.5 OZ PRODUCT MAXIMUM USE RATE 
Rotation Crop Interval (months) 
Com, field Anytime 
Potatoes Anytime 
Tomato 
Sulfonylurea Tolerant Soybean (STS) 4 
Cereals, Winter (wheat) 4 
Cereals, Spring (wheat, oats, barley) 9 
Com (pop or sweet) IO 
Cottont IO 
Cucumber IO 
Flax IO 
Soybeans IO 
Snap beans, dry beans IO 
Sunflower IO 
Crops Not Listed 18 
tTbe rotation interval should be extended to 18 months if drought 
conditions prevail after application and before the rotational crop is 
planted, unless sprinkler irrigation has been applied and totals greater 
than 15" during the growing season.

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SPRAYER PREPARATION/CLEANUP 
The spray equipment must be cleaned before DuPont™ 
LEADOfFTM (mp) is sprayed. Follow the cleanup procedures 
specified on the labels of the previously applied products. If 
no directions are provided, follow the steps outlined in the 
"After spraying LEADOfFTM (mp)" section of this label 
(below). 
It is recommended that during periods when multiple loads of 
LEADOFPM (mp) herbicide are applied, at the end of each 
day of spraying, the interior of the tank be rinsed with fresh 
water and then partially filled, and the boom and hoses 
flushed. This will prevent the buildup of dried pesticide 
deposits, which can accumulate in the application equipment. 
After spraying LEADOFFTM (mp) and before spraying 
crops other than field corn 
To avoid subsequent injury to desirable crops, thoroughly 
clean all mixing and spray equipment immediately following 
applications ofLEADOFPM (mp) as follows: 
1. Empty the tank and drain the sump completely. 
2. Spray the tank walls with clean water using a minimum 
volume of 10% of the tank volume. Circulate the water 
through the lines, including all by-pass lines, for at least 
two minutes. Flush the boom well and empty the sprayer. 
Completely drain the sump. 
3. Repeat step 2. 
4. Remove the nozzles and screens and clean separately in a 
bucket containing water. 
The rinsate solution may be applied back to the crop(s) 
recommended on this label. Do not exceed the maximum­
labeled use rate. If cleaners are used, consult the cleaner label 
for rinsate disposal instructions. If no instructions are given, 
dispose of the rinsate on site or at an approved waste disposal 
facility. 
Notes: 
1. Always start with a clean spray tank. 
2. A steam-cleaning aerial spray tank is recommended to 
facilitate the removal of any caked deposits. 
3. When LEADOFFTM (mp) is tank mixed with other 
pesticides, all cleanout procedures for each product 
should be examined and the most rigorous procedure 
should be followed. 
4. Follow any pre-cleanout guidelines recommended on 
other product labels. 
SPRAY DRIFT MANAGEMENT 
The interaction of many equipment and weather-related 
factors determines the potential for spray 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 droplets (>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 
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control and coverage. Applying larger droplets reduces drift 
potential, but will not prevent drift if applications are made 
improperly or under unfavorable environmental 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 higher-capacity nozzle instead of 
increasing pressure. 
• Nozzle Type - Use a nozzle type that is designed for the 
intended application. With most nozzle types, narrower 
spray angles produce larger droplets. Consider using low­
drift nozzles. 
Boom Height 
Set the boom at the lowest height that provides uniform 
coverage and 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 of less than 3 mph 
(due to inversion potential) or more than 10 mph. However, 
many factors, including droplet size and equipment type 
determine drift potential at any given wind speed. A void 
applications during gusty or windless conditions. 
Note: Local terrain can influence wind patterns. Every 
applicator should be familiar with local wind patterns 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. 
Temperature Inversions 
Drift potential 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 form 
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 nozzles 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 uniform deposition of the product.

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Air-Assisted (Air Blast) Field Crop Sprayers 
Air-assisted field crop sprayers carry droplets to the target via 
a downward-directed airstream. Some may reduce the 
potential for drift, but if a sprayer is unsuitable for the 
application and/or set up improperly, high drift potential can 
result. It is the responsibility of the applicator to determine 
that a sprayer is suitable for the intended application and is 
configured properly, and that drift is not occurring. 
INTEGRATED PEST MANAGEMENT 
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. IPM principles and practices 
include field scouting or other detection methods, correct 
target pest identification, population monitoring, and 
treating when target pest populations reach locally 
determined action thresholds. Consult your state cooperative 
extension service, professional consultants or other qualified 
authorities to determine appropriate action treatment 
threshold levels for treating specific pest/crop systems in 
your area. 
RESISTANCE 
When herbicides that affect the same biological site of 
action are used repeatedly over several years to control the 
same weed species in the same field, naturally-occurring 
resistant biotypes may survive a correctly applied herbicide 
treatment, propagate, and become dominant in that field. 
Adequate control of these resistant weed biotypes cannot be 
expected. If weed control is unsatisfactory, it may be 
necessary to retreat the problem area using a product 
affecting a different site of action. 
To better manage herbicide resistance through delaying the 
proliferation and possible dominance of herbicide resistant 
weed biotypes, it may be necessary to change cultural 
practices within and between crop seasons such as using a 
combination of tillage, retreatment, tank-mix partners 
and/or sequential herbicide applications that have a different 
site of action. Weed escapes that are allowed to go to seed 
will promote the spread of resistant biotypes. 
It is advisable to keep accurate records of pesticides applied 
to individual fields to help obtain information on the spread 
and dispersal of resistant biotypes. Consult your 
agricultural dealer, consultant, applicator, and/or 
appropriate state agricultural extension service 
representative for specific alternative cultural practices or 
herbicide recommendations available in your area. 
8 
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STORAGE AND DISPOSAL 
Do not contaminate water, food or feed by storage or 
disposal. 
Pesticide Storage: Store product in original container 
only. Do not contaminate water, other pesticides, 
fertilizer, food or feed in storage. Store in a cool, dry 
place. 
Pesticide Disposal: Do not contaminate water, food, or 
feed by disposal. Waste resulting from the use of this 
product must be disposed of on site or at an approved 
waste disposal facility. 
Container Handling: 
Nonrefillable Plastic and Metal Containers 
(Capacity Equal to or Less Than SO Pounds): 
Nonrefillable container. Do not reuse or refill this 
container. Triple rinse container (or equivalent) 
promptly after emptying. Triple rinse as follows: 
Empty the remaining contents into application 
equipment or a mix tank. Fill the container 114 full 
with water and recap. Shake for 10 seconds. Pour , 
rinsate into application equipment or a mix tank or 
store rinsate for later use or disposal. Drain for 10 
seconds after the flow begins to drip. Repeat this 
procedure two more times. Then, for Plastic 
Containers, offer for recycling if available or puncture 
and dispose of in a sanitary landfill, or by incineration. 
Do not bum, unless allowed by state and local 
ordinances. For Metal Containers, offer for recycling if 
available or reconditioning if appropriate, or puncture 
and dispose of in a sanitary landfill, or by other 
procedures approved by state and local authorities. 
Do not transport if this container is damaged or 
leaking. If the container is damaged, leaking or 
obsolete, or in the event of a major spill, fire or other 
emergency, contact DuPont at 1-800-441-3637, day or 
night. 
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™, LEADOFFM, 
ASSURE®, BREAKFREE®, CINCH®, CLASSIC®, 
ENLlTE®, ENVIVE®, FlRSTSHOT®, PREQUEL®, 
RESOLVE®, STEADFAST® and SYNCHRONY® are 
trademarks or registered trademarks of E. I. duPont de 
Nemours and Company 
"Roundup Ready", "Roundup Original", "Roundup Weathermax" 
are registered trademarks of Monsanto Technology LLC 
"Counter", "Fortress", and "Thimet" are registered trademarks of 
Amvac Chemical Corporation 
"Lorsban" is registered trademark of Dow AgroSciences, LLC 
"Aztec" is registered trademark of Bayer CropScience 
"Force" is registered trademark of a Syngenta Group Company 
D - 1609 120210 122910 TM revision 
\ , -

( 
I. 
LIMITATION OF 
WARRANTY AND LIABILITY 
NOTICE: Read this Limitation of Warranty and 
Liability Before Buying or Using This Product. If the 
Terms 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 moveinent, 
unconventional farming 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. 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 in ~he Directions for 
Use, subject to the inherent risks described above, when 
used in accordance with the Directions for Use under 
normal conditions. 
TO THE EXTENT CONSISTENT WITH 
APPLICABLE LAW, DUPONT MAKES NO OTHER 
EXPRESS OR IMPLIED WARRANTY OF FITNESS 
OR OF MERCHANTABILITY OR ANY OTHER 
EXPRESS OR IMPLIED WARRANTY. TO THE 
EXTENT CONSISTENT WITH APPLICABLE LAW, 
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. TO THE EXTENT CONSISTENT 
WITH APPLICABLE LAW, THE EXCLUSIVE 
REMEDY OF THE USER OR BUYER AND THE 
EXCLUSIVE LIABILITY OF DUPONT OR SELLER, 
FOR ANY 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. 
To the extent consistent with applicable law that allows 
such requirement, DuPont or its Ag Retailer must have 
prompt notice of any claim so that an immediate 
inspection of buyer's or user's 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: http://cropprotection.dupont.com/ 
© 2010 E. I. du Pont de Nemours and Company, 1007 Market Street, Wilmington, Delaware 19898. 
All rights reserved. 
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