crop-chem-docs/corpus/epa_ppls/352-550.md

# DUPONT LEXONE SP HERBICIDE

- EPA Reg No: **352-550**
- Registrant: CORTEVA AGRISCIENCE, LLC
- Signal word: Caution
- Active ingredients: Metribuzin (75%)
- Label accepted: 1998-07-23
- Source PDF: https://www3.epa.gov/pesticides/chem_search/ppls/000352-00550-19980723.pdf

---
<@PONj) 
'" 
Lexone® §JF 
herbicide 
" ......... A. Growing Partnership With Nature" 
H - If 
Ilf

<[UPON» 
Lexone® SP 
herbicide 
Wettable Powder in Water Soluble Bags 
Active Ingredient 
Metribuzin 
[4-Amino-6-(I,I-<limethylelhy\)-3-
(methylthio )-1 ,2,4-triazin-5( 4H)-one J 
InerlIngredienls 
TOTAL 100% 
EPA Reg. No. 352-550 
By Weight 
75% 
25% 
1 
KEEP OUT OF REACH OF CHILDREN 
CAUTION 
PRECAUTIONARY STATEMENTS 
HAZARDS TO HUMANS 
AND DOMESTIC ANIMALS 
CAUTION! MAYBE HARMFUL IF INHALED OR 
SWALLOWED 
Avoid breathing dust or spray mist. Avoid contact with 
skin, eyes and clothing. 
STATEMENT OF 
PRACTICAL TREATMENT 
If in eyes: Flush with plenty of water. Get medical 
attention if irritation persists. 
If on skin: Wash with plenty of soap and water. Get 
medical attention ifirritanon persists. 
For medical emergencies involving this product, 
call toll free 1-800-441-3637_ 
PERSONAL PROTECTIVE EQUIPMENT 
Applicntors and other handle,.. must wear: 
Long-sleeved shirt and long pants. 
Shoes plus socks. 
Follow manufacturer's instructions for cleaning/maintaining 
PPE. If no such instructions for washables, use detergent 
and hot water. Keep and wash PPE separately from other 
laundry. 
USER SAFETY RECOMMENDATIONS 
USERS SHOULD: Wash himds before eating, 
drinking, chewing gum, using tobacco or using the 
toilet 
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-
Metribuzin is a chemical which can travel (seep or leach) 
through soil and can contaminate ground water which may 
be used as drinking water. Metribuzin has been found in 
ground water as a result of agriCUltural use. Users are 
advised not to apply metribuzin where the water table 
(ground water) is close to the surface and where the soils 
are very permeable, i.e., well drained soils such as loamy 
sands. Your local agricultural agencies can provide further 
information on the type of soil in your area and the 
location of ground water. 
CAREFULLY OPEN THE OUTER BARRIER BAG 
AND IMMEDIATELY DROP THE INNER PACKET 
INTO THE SPRAY TANK. DO NOT OPEN THE 
INNER PACKET OR EXCESSIVELY HANDLE THE 
INNER PACKET. MOISTURE WILL CAUSE 
BREAKAGE.

DIRECTIONS FOR USE 
It is a violation offederallaw to use this product in a manner 
inconsistent wilh its labeling. 
Do not apply Ihis product in a way that will contact workers or 
other persons, either directly or t!uough drift. Only protected 
handlers may be in the area during application. For any require­
ments specific to your State or Tribe, consult the agency respon­
sible for pesticide regUlation. 
AGRICULTURAL USE REQUIREMENTS 
Use this product only in accordance with its labeling and with the 
Worker Protection Standard, 40 CFR part 170. This Standard 
contains requirements for the proteetion of agricultural workers 
on frums, 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 persooal protective equipment 
(PPE) and restricted-ent!)' 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 ent!)' into treated areas during the 
restricted ent!)' interval (REI) of 12 boors. 
PPE required for early ent!)' to treated areas that is permitted 
under the Worker Protection Standard and that involves contact 
with anything that has been treated, snoh as'plants, soil, or water, 
is: Coveralls. 
Waterproof gloves_ 
Shoes plus socks. 
LEXONE SP should be used only in accordance wilh recommen­
dations on Ihis label or in separately published DuPont recom­
mendations available Ihrough local dealers. 
DuPont will not be respunsible for losses.or damages resulting 
from use of Ihis product in any manner not specifically recom­
mended by DuPont User assumes all risks associated wilh such 
nonrecommended use. 
Do not use in Kern County, California - unless directed otherwise 
by supplemental labeling. 
GENERAL INFORMATION 
LEXONE SP is noncorrosive, nonflammable, and nonvolatile. 
Observe all cautions and limitations on labels of all products used 
in mixrures. 
2 
USE RATES 
All LEXONE SP rates in this label are expressed as broadcast 
rates in pounds or ounces product per acre; for band treatmen~ 
use proponionately less. For example, for a 14" band on a 42" 
row, use 113 of Ihe broadcast rates given in Ihis label. When a 
range of rates is given, use the lower rates on coarse-texrured 
soils (low in clay or organic matter) and the higher rates on fine­
textured soils (high in clay or organic matter). 
Use rates of "Lexone" SP are expressed as pounds of formu­
lated product per acre. ''Lexone'' SP is premeasured in I 
pound water soluble packets, 5 packets per bag. Add whole 
packets only. DO NOT attempt to open the water soluble 
packets. 
Number of Acres Treated per Packet of 
"Lexone" SP at Various Use Rates 
RATE PER ACRE I PACKET WILL COVER 
(POUNDS) (ACRES) 
1/6 6 
1/4 4 
113 3 
112 2 
213 1 112 
314 1 1/3 
1 1 
2 112 
4 114 
For use rates other than those listed in the table above, divide 
the product use rate (in pounds) into I (puunds of product per 
packet) to determine the number of acres that one packet will 
treat For example, if the product use rate is 1 112 pounds per 
acre: 
1 pound per packet - 0.67 acres per packet 
1.5 pounds per acre 
TIMING OF APPLICATIONS 
Preemergence Applicatibn (Germinating Weeds) 
LEXONE SP can be applied preemergence to cenain crops to 
effectively control germinating weeds in an early, vulnerable 
srage before they are able to compete with crops. These crops are 
asparagus, com, potatoes, soybeans, and sugarcane. With suffi­
cient moisture, LEXONE SP continues to control weeds as Ihe 
crop becomes better able to compete. If a significant number of 
weed seedlings begin to break Ihrough Ihe preemergence 
treatment, secondary weed control procedures, including cultiva­
tion and postemergence herbicide application, should be imple­
mented. 
The degree of weed control and duration of effect vruy wilh Ihe 
following: 
Organic matter content of soil-Soils wilh high organic matter 
require higher application rates !han soils wilh low organic 
matter for equivalent herbicide performance. 
Soil texture-Soils with high clay content require higher appli­
cation rates than soils with lower clay content 
Soil pH-LEXONE SP activity increases as soil pH increases. 
Rainfall-Moisture is necessruy to activate the herbicide. The 
best results are obtained if soil is moist at application and addi-

tiona! moisture is supplied by rainfall or sprinkler irrigation 
(1/4 to 1I2'~ within I week after application. If moisture is 
insufficient to activate the herbicide, a -shallow cultivation 
(preferably by rotary hoe) should be made after the crop 
emerges and while weeds are small enough to be controlled by 
mechanical means. If heavy rains occur within 3 weeks of 
planting, crop in jury may resul~ after 3 weeks, effects are 
likely to be negligible. 
Amount applied-On a given soil, applying the higher recom­
mended rate produces greater results than applying the lower 
recommended rate. 
Other conditions-Factors such as incorporation depth of 
LEXONE SP, competitionoftl1e crop with weeds, weed 
species, drought stress of weeds, high salt content of soil, crop 
seed quality, soil residues of previously applied herbicides, soil 
insecticides, and combination herbicide treatments all can 
affect perfoimance. 
Postemergence Applica/iQn (Emerged Seedling Weedr) 
LEXONE SP can be applied over the top of certain crops to 
effectively control susceptible emerged seedling weeds. These 
crops are alfalfa (established, dormant), potatoes, sainfoin 
(dormant), sugarcane, and tomatoes (seeded and transplants). 
LEXONE SP should be applied when weeds are young, healthy, 
and growing actively. Weed control may not be apparent for 2 to 
4 weeks after application; under very' dry conditions, weed 
control may not be apparent for 4 to 6 weeks. Adequate moisture 
(I12'~ is needed within 2 to 3 weeks after application to move 
LEXONE SP into the weed root zone. Lack of adequate moisture 
after application may result in poor weed control. Control or 
suppression of the weeds listed in this label depends on weed 
size. Making applications to broadleaf weeds taller than I" or 
grasses having more than 2 leaves may result in poor control. 
Directed postemergence applications of LEX ONE SP, in which 
spray nozzles are adjusted so that weeds are sprayed but the crop 
is no~ can be used on emerged soybeans (AL, AR, FL, GA, LA, 
MO, MS, NC & OK) and established tomatoes to control suscep­
tible emerged seedling weeds. 
Results of postemergence treatment of emerged seedling weeds 
vary with use rates and environmental conditions. The best 
results are obtained on succulent weeds growing in humid, warm 
weather. Adding a surfactant to the spray mixture (when recom­
mended) increases contact effects of LEXONE SP. 
Postemergence application also controls susceptible emerging 
seedling weeds for an extended time. 
WEEDS CONTROLLED 
LEXONE SP effectively controls the following weeds when used 
alone according to label directions. Additional weed control 
results when LEXONE SP is used in combination with other 
herbicides in tank mixes. See product labels of other herbicides to 
determine which weeds they control. 
Broadleaves 
Anoda, spurred 
Beggarweed, Aorida 
Beggarweeds 
Buckwheat, wild 
Buttercup, bur 
Catchfly, conical' 
Carpetweed 
Cherval, bur' 
Chickweed. common 
Chickweed, mouseear 
Chickweed, jagged 
Cockle, com 
Cocklebur' 
Copperleaf, hophombeam 
Dandelion! 
Daynower 
!)ogfennel (mayweed) , 
Dock, curly' 
Fal,eflax 
Fanweed 
Fiddleneck, tarWCed 
Filaree, redstem' F1ixweed 
Fumitoty 
Gromwell' 
Henbit 
Horsenettle' 
Jacobsladder 
Jimsonweed 
Kochia2 
Knotweed, prostrate 
Ladysthumb 
Lambsquarters' 
Lettuce, prickly 
Lettuce, miners 
Mallow, venice 
Mexicanweed 
partial control 
Momingglory' 
Mustard, blue 
Mustard, tansy 
Mustard, treacle 
Mustard, tumble 
(Jim Hill) 
Mustard, wild 
Pepperweed 
Pennycress, field 
(fanweed) 
Pigweed, palmer 
Pigweed, prostn1I('~ 
Pigweed, redrooF 
Pigweed. smooth' 
Pineappleweed 
Poinsettia, wild' 
Purslane, commonl 
Purslane, Florida 
(Florida pu,ley) , 
Ragweed, common 
Rocket, yellow 
Salsify, meadow 
Sesbania, Hemp 
(coffeebean) 
Shepherd's purse 
Sicklepod 
(cassia, coffeeweed) 
Sida, prickly (teaweed) 
SmartWeed, Pennsylvania 
Speedwell, ivyleaf 
Spurge, spotted 
Sunflower. wildt 
Tansymustard 
Thistle, Russian2 
Toadflax 
Velvetleaf 
control except for triazine-resistant weeds 
3

Grasses* 
Barnyardgrass 
(watergrass) I 
Blackgrass 
(black twitchgrass) , 
Bluegrass 
Brome, downy 
Brome, Japanese 
Cheatgrass 
Crabgrass 
Crowfootgrass 
Foxtails 
Goosegrass 
Panicum, Fall 
Quackgrass' 
Ryegrass, annual' 
Ryegrass, Italian' 
Signalgrass, broadlear 
Wheat. volunteer 
Witchgrass 
Windgrassl 
* controlled with LEXONE SP at !'ales above O.661b per' acre 
I partial cortlrOl 
APPLICATION INFORMATION 
SPRAY APPLICATION 
Spray Preparation 
Spray Tank Cleanup 
Spray equipment must be clean and free of previous pesticide 
deposits before applying LEXONE SP and properly cleaned out 
after applying this herbicide. Prior to applying LEXONE SP, 
clean the spray tank following the procedures described on the 
label of the product used previously. Immediately following 
applications of LEXONE SP, thoroughly clean all mixing and 
spray equipment according to the following instructions. 
I. Drain tank; thoroughly hose down the interior swfaces of the 
tank; then flush tank, boom, and hoses with clean water for a 
minimum of 5 minutes. Loosen and physically remove any 
visible deposits. 
2. Fill the spray tank with clean water and add a heavy-duty 
detergent at the rate of one cup per 20 gallons of water. Hush 
the cleaning solution through the boom, hoses, and nozzles. 
Add more water to completely fill the tank and allow to 
agitate/recirculate for at least 15 minutes. Again, flush the 
hoses, boom, and nozzles with the cleaning solution, then drain 
the tank. 
3. Repeat step 2. 
4. Clean the nozzles and screens. 
5. Thoroughly rinse the tank with clean water for a minimum of 5 
minutes, flushing the water through the hoses and boom. 
6. All rinse water must be disposed of in compliance with local, 
State, and Federal guideline. 
Mixing in Water 
I. Calculate the number of LEXONE SP packets required. 
2. Fill the spray tank 114 full of water. 
3. Star! the agitation system. Add the required number of 
LEXONE SP soluble packets. Allow the packets to 
dissolve and the chemical to fully disperse before adding 
other pesticides or spray adjuvants. Continue agitation. 
NOTE: To add LEXONE SP packets, open the outer 
barrier bag and drop the inner soluble packet directly in to 
water. The barrier bag is NOT soluble in water. DO NOT 
place in spray tank. At anyone time, open only those bags 
which will be used immediately. 
4. Add any additional tank mix components one at a time while 
continuing to add water 
4 
:- When using tank mix components for the first time, it is a 
good idea to check their compatibility in a 'Jar test" before 
mixing in the spray tank. 
- Any component that does not mix in well in the spray tank 
should be premixed with two parts water before being added 
to the spray tank. 
- Always premix Treflan' (or trifluralin containing products) 
or Prowl' with water before adding to the spray tank. 
- Add any surfactant last, when the tank is nearly full. 
5. Continue agitation throughout preparation; agitation is required 
for uniform mixing and application. 
6. Apply spray preparation promptly. Do not store tank mixes of 
LEXONE SP with ''Treflan'' or "Prowl" overnight 
7. Hush sprayer with water after use and dispose of rinsate 
properly. 
NOTE: Do not use ''Lexone'' SP when liquid fertilizer 
solutions or suspensions are intended to be the carrier. 
''Lexone'' SP is intended to be used only when water is the 
carrier. Liquid fertilizer solutions or suspensions may be 
added as spray additives, but should not exceed 10% of the 
total finished spray volume. Fertilizers must be the last 
components added to the tank, after the ''Lexone'' SP has 
fully dispersed. 
Application (Also see Spray Drift Management) 
Ground 
Apply LEXONE SP spray preparation with a properly calibrated 
low pressure (20 to 40 psi) boom sprayer equipped with fan-type 
nozzles and screens no finer than 50 mesh-Continuous agitation 
in the spray tank is required to keep the material suspended. To 
avoid crop irijwy, avoid overlapping, and shut off spray booms 
while starting, turning, slowing, or stopping. Use 10 to 40 gal of 
water per acre; when using tankmixes refer to label of the tank 
mix partners. 
Aerial 
Apply unifonnly with aerial equipment Continuous agitation in 
the spray tank is required to keep the material suspended. Avoid 
overlapping. Do not apply under conditions that favor drift. See 
Spray Drift Management 
Use 2 to 10 gal per acre, except "as follows: 
- For sugarcane (irrigated only) in Hawaii, use 7 gal per acre. 
- For sugarcane in Horida, Louisiana and Texas, use 5 to 10 
gal per acre. 
- For potatoes west of the Rocky Mountains, use 5 to 10 gal 
per acre. 
CHEMIGATION (POTATOES ONLy] 
Apply this product only through sprinkler irrigation systems 
(including center pivot, linear, solid set, and wheel roll). Do not 
apply this product through any other Iype of irrigation system. 
Crop injury, lack of effectiveness, or illegal pesticide residues in 
the crop can result from nonuniformdistribution of treated water. 
If you have questions about calibration, you should contact State 
Extension Service specialiSts, equipment manufacturers, or other 
experts.

irrigiIlWn System Requirements 
The irrigation system must contain the following: 
a functional check valve. 
vacuum relief valve. 
a low-pressure drain (to prevent contamination of the water 
sowce from backflow; should be located on the irrigation 
pipeline). 
functional interlocking controls (to shut off the pesticide 
injection pump automatically when the water pump motor 
stops). 
• a metering pump, such as a positive displacement injection 
pump (e.g., diaphragm pump) designed and constructed of 
materials that are compatible with pesticides and capable of 
being fitted with a system interlock. 
The pesticide injection pipeline must contain the following: 
• a functional, automatic, quick-closing check valve (to prevent 
the flow of fluid back toward the injection pump). 
• a functional, solenoid-operated valve (normally closed) located 
on the intake side of the injection pump (should be connected 
to the system interlock to prevent fluid from being withdrawn 
from the supply tank when the irrigation system is shut down 
either automatically or manually). 
The irrigation line or water pump must include a functional 
pressure switch that will stop the water pump molor when 
pesticide distribution is adversely affected by a decrease in water 
pressure. 
Clremigation Precautions 
Distributing treated water unevenly can result in crop injury, lack 
of herbicide effectiveness, or pesticide residues that are over 
tolerance. To ensure that the mixture is applied evenly at the 
recommended rate, use sufficient water and apply the mixture for 
the proper length of time. 
Do not permit runoff during chemigation. 
Do not apply when wind speed favors drift beyond the area 
intended for treatment 
ChemigiIlWn Systems Connected to Public Water Systems 
A "public water system" is defined as a system for the provision 
to the public of piped water for human consumption if such 
system has at least 15 service connections or regularly serves an 
average of at least 2S individuals daily at least 60 days out of the 
year. 
Chemigation systems connected to public water systems must 
contain the following: 
a functional, reduced-pressure zone, backflow preventer 
(RPZ), or the functional equivalent in the water supply line 
upstream from the point of pesticide introduction. As an alter­
native to the RPZ, the water from the public water system 
should be discharged into a reservoir tank prior to pesticide 
introduction. 
a complete physical break (air gap) between the outlet end of 
the fill pipe and the top or overflow rim of the reservoir tank of 
at least twice the inside~ diameter of the fill pipe. 
a functionai, automatic, quick-closing check valve in the 
pestiCide injection pipeline to prevent the flow of fluid back 
toward the injection pump. 
a functional, solenoid-operated valve (normally closed) located 
on the intake side of the injection pump (should be connected 
to the system interlock to prevent fluid from being withdrawn 
5 
from the supply tank when the irrigation system is shut down 
either automatically or manually). 
• functional intetlocking controls to automatic;!lly shut off the 
pesticide injection pump when the water pump motor stops, or, 
in cases where there is no water pump, when the water 
pressure decreases to the point where pesticide distribution is 
adversely affected. 
Systems must use a metering pump, such as a positive displace­
ment injection pump (e.g., diaphragm pump) effectively designed 
and constructed of materials that are compatible with pesticides 
and capable of being fitted with a system interlock. 
Application 
See Spray Application for mixing, agitation, and application 
instructions. For application rate information, see Potatoes under 
Specific Crop Uses. 
SPECIFIC CROP USES 
ALFALFA AND SAINFOIN 
Make a single application of LEXONE SP in the fall after plants 
become dormant, or in the spring before new growth starts. 
LEXONE SP Application Rates 
for Pure Stands of Alfalfa or Sainfoin 
Pounds LEXONE SP Per Acre 
0.5 to 2% More than 2% 
Soil Texture Organic Matter 
Coarse 
Loamy sand, 
Sandy loam 0.50 to 0.66 
Medillm 
Loam, Silt Loam, 
Silt, Sandy 0.66 to 0.75 
clay, Sandy 
clay loam 
Fme 
Silty clay, Silty 
clay loam, 0.75 to 1.00 
Clay, Clay Loam 
Washington, Oregon, Idaho. and Utah 
Organic Matter 
0.66 to 0.75 
0.75 to 1.00 
1.00 to \33 
LEXONE SP partially controls downy brome, t1ixweed, and 
tansy mustard when applied at the lower rate (see table). For 
improved control of these weeds in dormant, pure stands of 
alfalfa only, add Gramoxone' Extra (1.2 to 1.6 pints/acre). 
California 
Use LEXONE SP north of U.s. Interstate 80 only. 
Mixed Stands with Grasses 
Applying LEXONE SP at the higher rate for a given soil 
texture and percent organic matter may partially reduce forage 
grass stands. 
Applying LEXONE SP at \.0 to 1.33 lb per acre may severely 
reduce forage grass stands.

PreCQUMnS for Alfalfa and Sabtfoin 
• Do not apply during the first grw1iw season ~ seeding. 
• Do nct graze Of hruvest within 28 daYs after application. 
• Stress'CQIldltions, which niajtiX: Q~se;j iltPar1 by iow 
fertinty; <mease, in:reeti, wfnter ldli: Q~~itIng, drought, or 
frost, mayjncrease the ~o(~ in)illj:' ,",' , " 
• Do not use' on sand or on SOUs Wiih less !han 0.5% organic' ' 
matter, as crop mjury may iclult .' ", , 
ASPARAGUS 
Make a single preemergence application of 1.33 to 2.66 Ib 
LEXONE SP per acre in early spring prior to spear emergence. 
Use the lower rate on coarse·textured soils (low in clay or organic 
matter) and the higher rate on fme-textured soils (high in clay or 
organic matter). If field IS to.be disked, apply LEXONE SP after 
disking but before crop emerges. 
Washington, Oregon. Idaho 
• Use one of the following application methods: 
- Apply as above. 
- Make a single preemergence applicanon of 0.66 to 
1.33 Ib per acre in eady spring prior III spear emergence. 
Following harvest but before fern emerges, apply 0.66 to 2.0 
Ib LEXONE SP per acre. Do not exceed 2.66lb LEXONE 
SP per acre per growing season. 
- Make a single preemergence application of 0.66 to 
1.33 Ib per acre in eady spring prior to spear emergence. 
Following harvest but before fern emerges, apply a tank mix 
of 0.66 to 1.0 Ib l.ExONE SP per acre and 1 to 2 Ib per acre 
of DuPont KARMEX" DF Herbicide . 
• If the crop is irrigated, do not apply more than 0.5" of irrigation 
after the initial LEXONE SP application. Additional irrigation 
may follow normal program. 
CORN (FIELD) 
Use only In the Slates of minois. Indiana. Iowa. Kansas, 
Kentucky. Michigan Minnesota, Missouri. Nebraska. OhiO. 
South Dakota and Wisconsin 
Apply a tank mix of LEXONE SP plus atrazine or DuPont 
BLADEX" 90DF HerbiCide, plus Lasso'or Dual' after planting 
but before com emerges. To avoid crop injury, plant seed at least 
1-1/2" deep on flat or raised seedbeds only. Soil should be well 
prepared and as free as possible from lIaSh and clods before 
planting. 
This lreannent controls many annual weeds, such as velvetieaf, 
common lambsquarters, * common ragweed, Pennsylvania 
smartweed, redroot pigweed,' jimsonweed, giant foxtail, yellow 
foxtail, green foxtail, smooth crabgrass, large crabgrass, bam· 
yardgrass, fall pamcum, and witchgrass. 
LEXONE SP in the tank mIX combInatiOns Improves control of 
velvetieaf, common lambsquarters,* and Pennsylvania 
smartweed. For additional weeds controlled, see atrazine or 
BLADEX 90DF and "Lasso" or "Dual" labelIng. 
6 
* e:t.cept triazine-resistant weeds 
UseRotes 
For medium textured soIls (Loam, silt loam, silt, sandy clay, 
sandy clay loam) with 2 to 6 % organic maner use (0.25 to 
0.33Ib) LEXONE SP in combmatlon with 
(0.75 to 1.5lb Active) Atrazme or (1.1 to I.Slb) BLADEX 
90DF plus (3.0 to 4.0 pt) "Lasso" 4EC or 
(1.5 to 2.0 pt) "Dual" SE. . 
For fine textured soils (Silty clay, sIlty clay loam, clay, clay 
loam) with 2 to6 % organic matter use (0.33Ib) LEXONESP 
In combination with (0.75 to 1.5 Ib Active) Atrazine or (I.S to 
2.2Ib) BLADEX 90DF plus 
(4.0 to 5.0 pt) "Lasso" 4EC or (2.0 to 2.5 pI) "Dual" SE. 
" ' ,.,:;om?::.?;... .... ~ 
FALLOW 
Corn or Tomotoes 
-Fall Bedded Fields in California (OnIy) 
Apply 0.66 to 1.0 Ib LEXONE SP per acre in the fall. Use the 
lower rates on soils contaIning 0.5 to 2% organic matter and the 
higher rates on soIls containing greater than 2% organic matter. 
To prevent crop injury, do not plant corn within 120 days of 
applIcation or tomatoes within 90 days of application. At least 2" 
of mOIsture IS needed to acUvate LEXONE SP for weed control 
and to begm breakdown of the herbicide in soil for crop safety. 
Do not disturb the soil surface after applicauOn-doing so 
reduces weed control. 
Whear (Reduced Tillage F aikJw) 
LEXONE SP may be applied for weed control during the fallow 
period after wheat harvest or in the spring before winter wheat is 
planted. Winter wheat can be seeded 4 months (120 days) after 
spring application. Mechanical iillage or applicanon of a contaCt 
herbiCide may be reqUIred to control weed germination prior to 
seeding of winter wheal Best results are obtained when straw 
and chaff are evenly distributed across the field.

Apply 0.5 to 0.751b LEXONE SP per acre as an after-harvest 
treatment prior to subsequent planting of winter wheat !he 
following year. Use the lower rate on coarse-textured soils and 
the higher rate on medium-to fine-textured soils. Use higher rates 
for longer weed control or for weeds requiring higher rates for 
control. For best results. apply before weeds emerge. One-half 
inch or more of rainfall is necessary to activate !he herbicide. 
See Weeds Controlled for a listing of weeds controlled or 
suppressed in fallow. If weeds are larger than 2" tall or across. or 
weeds other than those listed on the label are presen~ use a 
suitable registered companion herbicide such as DuPont 
FINESSE" Herbicide, Grarnoxone' Extra, or "Roundup" in a tank 
mix with LEXONE SP. Refer to companion product labeling for 
additional use instructions and precautions. 
7 
PEAS AND LENTILS 
Preemergence and postemergence application of LEXONE SP is 
recommended for suppression of certain braadleaf weeds in 
lentils and certain peas, including green peas, dry peas, and 
Austrian winter peas. For weed suppression in chick peas, only 
preemergence applications of LEXONE SP are recommended. 
For weed suppression in Austrian winter peas, only postemer­
gence applications of LEXONE SP are recommended. 
LEXONE SP suppresses common chickweed, common 
groundsel, henbi~ lambsquarter, chamomile mayweed, field 
pennycress, prostrate pigweed, redroot pigweed, pineappleweed, 
shepherd's purse, and Pennsylvania smartweed. Weed suppres­
sion is a visual reduction in weed competition (reduced popula­
tion andlor size and vigor compared to an untreated area). Degree 
of suppression varies with rate used, size of weeds at application. 
and environmental conditions before, during, and after treatment. 
For common chickweed, henbi~ and shepherd's purse, best 
results are obtained from preemergence application. 
Preemergence Application to Lentils, Green Peas, 
Dry Peas, and Chick Peas 
Apply 033 to 0.50 lb LEXONE SP per acre as a broadcast appli­
cation in !O to 40 gal of water with ground spray equipment after 
planting but before crop germinates. Crop should be planted 2" 
deep. Use the higher rate on fine-textured soils (high in clay or 
organic mauer) or when a history of high weed populations 
exists. 
LEXONE SP must be thoroughly incorporated into the soil 
either by rainfall or mechanical means before weeds germinate 
and become established_ To incorporate LEXONE SP mechani­
cally, use a spike harrow or similar shallow incorporation 
equipment set to mix the top I" to 2" of soil. After the initial 
incorporation tillage, cross-harrow to ensure uniform soil mixing. 
Mechanical incorporation is important when soil conditions are 
dry. If soil is moist at application and rain follows before weeds 
emerge, weed control should be adequate without supplemental 
incorporation. 
Postemergence ApplicatWn to Lentils, Green Peas, 
Dry Peas, andAuslrilln Winter p,eas 
Apply 0.2 to 033 lb LEXONE SP per acre as a broadcast appli­
cation in 20 to 40 gal of water with ground spray equipment. 
Make the application when the crop is 2" to 6" tall and weeds are 
less than 2" tailor across. Use the higher rate on fine-textured 
soils (high in clay or organic mauer). 
During application, maintain continuous agitation in the spray 
tank to keep product in suspension. To avoid crop injury. do not 
overlap spray swaths and shut off booms while ttlrning, slowing, 
or stopping. 
Note: Treatment may cause some chlorosis (yellowing of 
leaves) or minor necrosis (burning of leaves characterized 
by brown tissue at outer margin). Symptoms are most 
severe when LEXONE SP is applied to wet foliage andlor 
wet soils.

Precautions for Peiistutd l£nfils , 
• DQ not use spray jjibsStire higher d:tan 40 pSi:t:~:t' " 
• Make no more than QlJe [lOstiinergence appli~ati<')lfPer 
season. Risk 'of croR lnj~ increaSe:S if apo&irunergence, 
application is, ffi,ade f?!t4':YJ~g ~'Pre\1Ons, appli~tjon of 
LEXONESI'or!lencor.'" "'", ',,' ,i"i', '.' " 
• Do ~o.t appl~ ~~q~§R, w!tjJU\'~1 ho.Js:o!:;;,l:ber 
pestiCIde appljcatio~:, "\ ' ( , \ ". " ' ;, 
• Oilly treaq\tistriimwl'';~r peas afler ",.. '-':';el1 
established in the 'Sprilig,: ", ," \, , 
• Apply no more 1h'IJl,o;Zlbperacretl!# ,\ieI ,s(>ib;;.j 
Preemergence ApplicaiWn 
Make a single application of 05 to 1.33 Ib LEXONE SP per acre 
after planting or after drag-off but before crop emerges, Use the 
lower rates on coarse-textured soils (low in clay or organic 
matter) and the higher rates on fine-textured soIls (high m clay or , 
organic matter). 
Tank Mixtures 
For Improved control of certain grass and broad leaf weeds, add a 
suitable herbicide such as "Dual", Eptam', "Prowl", "Treflan" or 
MA TRlX. Read and follow each product labeL 
8 
Postemergence App/kDtion 
Make a single application of 05 to 0,661b LEXONE SP per acre 
before weeds are I" talL Apply only after at least 3 successive 
days of sunny weather, 
• Do not use LEXONE SP on early maturing, smooth-skInned, 
white-or red-skInned varieties. 
• Do not apply within 60 days of harvesL 
Note: Treatment may cause some chlorosis (yellowing of 
leaves) or nunor necroSIS (bummg of leaves characterized 
by brown tissue at outer margin of leaf), 
Preemergence Plus Postemergence 
Apply as directed above under preemergence and postemergence 
applications. 
• Do not exceed 1.33 Ib total LEXONE SP per acre per season. 
• Do not apply witlun 60 days of harvest. 
Split Postemergence 
Oregon, Washington, IdahQ onlv 
Do not use thIS treatment if LEXONE SP was applied preemer­
gence. For besl results, apply before weeds are I" tall or across. 
Allow at least 14 days between apphcations. Do nol apply withm 
24 hours of another pesticide application. 
Make two applications of 0.33 to 0.661b LEXONE SP per acre. 
Do not exceed 0.33 Ib per acre per application on coarse-textured 
solis containing 05 to 1.0% organic matter. 
ApplicaiWn by ChemigaiWn 
Before applying LEXONE SP by sprinkler irrigation, read the 
ehemigation section in this labeL 
Apply at the specified rate in 0.25 to 0.75" of water per acre (0.25 
to 050" of water per acre on sandy soil). In center pivot and self­
propelled Wheel-move systems, apply as a continuous injection; 
in set-in, permanent, solid-set sprinkler systems apply the 
herbicide in such a manner that 0.25 to OS' of water follow the 
herbicide application. 
Irrigation systems must be equipped with automatic shutoff 
devices that prevent backflow to the water source. Maintain 
continuous agitation in injection nurse tanks during application. 
Check the irrigation system to ensure uniform applicatlon to all 
areas. Failure to apply LEXONE SP unifonnly may result in crop 
injury and/or poor weed control. 
P~calftionsflifP4t¥,~S'" , ,~: /\~'~'~:' , ,:, , 
'~""" y t,,-" '~-,';':{.' "::.«.:..-o""' ... ~ ~ 'i,." ~t;,~<f,':'!;'::: ' N ,"" , 
" Potato vaileties differ'in ,I:belt (oJerimce to heibicides., 
, Before lisIng'CEXONE'SP rot the' l'!rnt tiiOO On a' pattie-
, '<:- '" ~:,"S. ~,' ~ x <" ' , 
, ·\ll¥" raneli'. detel1l9ne,~p Wef<"9f;e prior to field use. 
, ,~'.~,;;,,, I"",~, :t ... ~:w~z/"/",,, ' 
• Crop lfiJUry may result if the followmg varieties are 
under stress caused by drought, low fertility, insufficient <;<'<»':'''li ".' ,,~,';,~ ,:;","",,,,,, '\,.(.- , 
, 1 %UR.,llN,,~ d'!!!l~g!" ,$l!:<!i~~s.tWhen postemergence 
.: "lIpl'lication, j~ Jnadei: ACadi~$t!'S~~Mlan!ic, BatQChe, 
"'jle!chip, Caffipbell12 and 13, Carib<, Centennial, " '''_:::C:..::i' , ,,,,, ~ "~ ~", ~ " , " 
" ,~~lef, G<?lft _Roe;J-r3l)1ptOti, lelnseg, Monona, 
'''MN1m, N~e, Norgo!d.; NX ~,Q~tario, Sebilgo; . "-ASh pod , ' " . ~-","~~",_e y~~" '~~", ,~,~ ,;. ", 
• Usmg LEXONE'SJ>,on'Sartd.i6r loamy sands containiog 
,,05 'to 15% organic maiter may;.,sUltln ciop injUry •• 
" > , ~" Hd '" W' •• 
• Do not use LEXO~ SP 013' <l!'yjoi1sonr,aiWiig le~ 
1han 05% OrganiC rIIatter, as'i:t?P injury may result. 
(continued),

PreCautions: f(jr Potaioii'S:(coiilinued) '. . ... ' 
: ~i~~!r~Mrtm~E~;~~~L, 
proVldeadequale weei;l,COllIrPI m. the abseii¢e ,of rainfall. 
:E1;~~r~l~fS~~!~~;~' 
SOYBEANS 
LEXONE SP may be applied preplan~ preplant incorporated, or 
preemergence to soybeans. Directed postemergence application 
to soybeans may be made only under the conditions discussed in 
the Postemergence to Soybeans section of this label. 
LEXONE SP can be used alone or in combination with another 
herbicide. Combination treatments control not only weeds that 
are susceptible to LEXONE SP but also weeds that are suscep­
tible to the companion herbicide(s). DuPont recommends using 
one or more of the following herbicides either before applying 
LEXONE SP or in a tank mix combination. 
"Treflan" (or other registered soybean products that contain 
trifluraJin as the sole active ingredient) 
Sonalan' 
"Lasso" (or other registered soybean products that contain 
alachlor as the sole active ingredient) 
"Roundup" 
Bronco~ 
• ~'DuaI" 
"Prowl'~ 
• Frontier' 
Freedom"" (or other registered soybean products that contain 
alachlor and triflurnlin as the sole active ingredients) 
Command' 
Commences 
"Gramoxone" Extra (or other registered soybean products 
containing paraquat as the sole active ingredient) 
Preemergence to Soybeans 
Prepkznt incorporation of a LEXONE SP tankmix 
- see Rote Table 1 
For improved weed control, use a combination of LEX ONE SP 
and one of the herbicides listed below. Consult the companion 
herbicide labels for rates and use directions. Follow the most 
restrictive labeling of the tank mix herbicides involved. 
• "Treflan", "Dual", or "Sonalan" - apply within 14 days of 
planting 
• "Lasso" or "Prowl" - apply within 7 days of planting 
Select the appropriate LEXONESP rate from Rate Table 1. For 
light infestations and applications closer to planting, use the 
lower rate. For heavy infestations and applications further from 
planting, use the higher rate. Mix the LEXONE SP and tankmix 
partner in water and incorporate into the soil before planting 
soybeans. Improper soil incorporation can result in erratic weed 
control or crop injury. Do not plant seeds more than 2" deep. 
Preemergence application of LEXONE SP in a tankmix or 
preceded by prepkznt incorporation of a companion herbicide • 
See Rote Table 1 
• Apply LEXONE SP or LEXONE SP tankmix before 
soybeans emerge, otherwise severe crop injury may occur 
• To avoid crop injury, plant seed 1·112 to 2" deep on Oat or 
raised seedbeds. 
RATE TABLE 1 • All Conventional and Conservation Tillage Preemergence uses 
(Preplant, Preplant incorporated, Preemergence) 
Soil Texture 
Coarse: 
Medium: 
Fine: 
Loamy sand, sandy loam 
Loam, silt loam, silt, 
sandy clay, sandy clay loam 
Silty clay, silty clay loam, clay, 
clayloam 
MiSSissippi Delta only - Silty clay to heavy clay 
LEXONE SP Rate, Ib/acre 
0.5 to 3 % organic Matter >3 % organiC matter 
0.17 - 0.33* 0.50 
0.33 - 0.50 0.66 
0.50- 0.66 0.66 
0.66 - 1.00 1.00 
'" For sicklepod control on Coastal Plains soils of the Southeast and Midsouth, use Q.3J -050 Ib LEXONE Sl> 
RA TE TABLE 2 • Reduced LEX ONE SP rate followed by a DuPont Postemergence herbicide 
(Preplant, Preplant incorporated, Preemergence) 
Soil Texture 
Coarse: Loamy sand, sandy loam 
Medium: Loam, silt loam, silt, 
sandy clay, sandy clay loam 
Fine: Silty clay, silty clay loam, clay, 
clay loam 
Mississippi Delta only - Silty clay to heavy clay 
LEXONE SP Rate, lb/acre 
0.5 to 3% organic Matter >3% organic matter 
0.25 0.33 
0.33 0.50 
0.33 0.50 
0.66 - 1.00 1.00 
9

LEXONE SP preemergence preceded by a preplanl incorpo­
rated companion herbicide 
Apply '''Tret1an'', "Sonalan", "Prowl", ··Lasso", or "Dual" and 
incorporate into soil before planting soybeans. Follow the 
instructions on the product label. In a separate operation, after 
planting, apply LEXONE-SP (alone) after selecting the appro­
priate rate from Rate Table I. 
LEXONE SP preemergence application in a ILmkmix 
Choose a tankmix herbicide from the list at the beginning of the 
Soybean Section of this label. Select the appropriate LEXONE 
SP rate from Rate Table 1. When a range is given, use the higher 
rate for hard-to-control weeds such as cocklebur, jimsonWeed, 
sicklepod, hemp sesbania, prickly sida or velvetleaf. Use higher 
rates also for heavier infestations. 
Preplant, preplant incorporation or preeImrgence application 
of LEXONE SP ora tonkmix comhinationfoUowed by a poste­
mergence application of DuPont ClASSIC, SYNCHRONY 
STS, REUANCE STS or PINNACLE herbicides 
- See Rate Table 2 
For broadleaf weed control in soybeans. DuPont recommends 
reduced rates of LEXONE SP either preplant, preplant incorpo­
rated, or preemergence followed by a postemergence application 
of DuPont CLASSIC, SYNCHRONY STS, RELIANCE STS or 
PINNACLE herbicides. 
For grass weed control, LEXONE SP can be applied in a tank 
mix with, or as a sequential overlay after, ''"Treflan'', "Dual", 
'"Sonalan", "Lasso", "Prowl", or "Frontier'. Alternatively, a soil 
application of LEXONE DF may be followed by a postemer­
gence grass herbicide stich as ASSURE II. Follow the instruc­
tions on the producllabels. 
Selecl the appropriate LEXONE SP reduced rate from Rate Table 
2. Apply preplant, preplanl incorporated or preemergence as 
directed. Follow with a postemergence application of DuPont 
CLASSIC, SYNCHRONY STS, RELIANCE STS or 
PINNACLE herbicides when weeds are small and actively 
growing (usually 14-28 days after planting). 
Preplant or Preemergence to 
Soybeans in Conservation TiUage 
When soybeans will be planted directly into a preformed bed 
(stale seedbed), cover crop, or in previous crop residues such as 
com or small grain stubble, LEXONE SP tankmixes may be used 
for bumdown or suppression of annual broadleaf weeds and 
grasses and some perennials. LEXONE DF plus crop oil concen­
trate (COC) or nonionic surfactant (NIS) will control or bum off 
most small weeds ($ I"). 
For improved burndown of existing broadJeaf weeds and 
grasses, LEXONE SP may be tonkmixed with "Gramoxone" 
Extra, "Roundup", "Bronco", or 2,4~D (LVE). 
For LEXONE SP + "Gramoxone" Extra tankmix applications, 
use 20-60 gallons of water per acre, using the higher rate for 
dense stubble or vegetation. For LEXONE SP + 
"Roundup"f"Bronco" applications, use 20 gallons of water per 
acre. 
Use nonionic surfactant or COC in any application where 
bumdown of existing vegetation is desired according to recom­
mendations on companion product label. 
When using 2,4-D (L VE) in a tankmix with LEXONE SP, follow 
the minimum preplant intervals and directions for use listed 
below. 
7 days for 0.5 pI per acre 2,4-D (3.8 Ibfgal L VE) or 0.24 Ib acid 
equivalents per acre. 
30 days for 1.0 pt per acre 2,4-D (3.8 Iblgal L VE) or 0.48 Ib 
acid equivalents per acre. 
Regardless of the rate of2,4-D used, make only one applica­
tion per growing season. 
Use a minimum of IO gal total spray volume per acre with 
ground equipment, or a minimum of 5 gal total spray per acre 
with aerial equipment 
When 2,4-D is applied, do not feed hay, forage or fodder. 
Restrict livestock from grazing treated fields or cover crops 
treated for bumdown. 
• Refer to the 2,4-D label for precautionary statements and use 
instructions. Read the crop injury statements on the 2,4-D 
(L VE) herbicide label and use only if these statements are 
acceptable. 
For improved residual control of specific grasses or broadleaf 
weeds, LEXONE SP may be tankmixed with one or more of the 
products listed at the beginning of the soybean section of this 
label. 
Postemergence to Soybeans 
LEXONE Sf' may be applied as a directed postemergence 
treatment in the states of AI., AR, FL, GA, LA, MO, MS, NC, 
OK according to the use direction below. DO NOT SPRAY 
LEXONE SP OVER THE TOP OF SOYBEANS. 
Apply when soybeans are at least 12" tall and when broadleaf 
weeds do not exceed 3~ and grasses and common ragweeds do 
not exceed I" in height 
Direct the spray to cover weeds with minimal or no contact to 
the soybean plant Crop injury may result if the spray is higher 
than 2" on the soybean stem. 
10 
Add a nonionic surfactant at 112 pt per 100 gal spray solution. 
Apply 0.33 to O.66lb per acre in25 to 40 gal of water. Use the 
lower rate for seedling weeds and the higher rate for larger 
weeds. 
• Application of 0.33 lb per acre controls Rorida beggarweed, 
carpetweed, cocklebur, daytlower, Mexican weed, prostrate 
and smooth pigweed, redroot pigweed (carelessweed)*, 
common purslane, sieklepod (Cassia), velvetleaf, and 
crabgrass (large, smooth). 
Application of 0.33 to 0.66 Ib per acre controls hemp 
sesbania, prickly sida (spiny sida, leaweed). 
• Application of 0.66 Ib per aCre controls jimsonweed, 
Pennsylvania smartweed, and common ragweed. It also 
gives partial control of momingglories, horsenettle, Rorida 
purslane (Aorida pusley), spotted spurge, and wild poinsettia 
when weeds are less than 3" tall and of broadlcaf signalgrass 
. up to I" tall. 
"'except triazine-resistant weeds 
If needed, a second application may be made after 7 days. 
Do not exceed nozzle pressure of 25 psi or use nozzle tips smaller 
than 8002 T-jet (or equiValent). . 
For post-directed broadcast application, use a single flood-type 
spray nozzle ("K" series or equivalent) per middle, mounted on 
an oiling shoe or gauge wheel. For a post-directed band 
treatmen~ use two nozzles per row, mounted on oiling shoes or 
gauge wheels (one on each side of the row).

SUGARCANE 
For use only in the Slates of Hawaii, Louisiana. , , 
Texas an<! FlotiM p , 
Hawaii 
Make a single broadcast applIcation according to lIle !ate chart 
gIven below. For aerial applIcation (irrigated cane only), use at 
least 7 gal of water per acre. Spot treatments may also be made at 
!he rnte 00.33 to 6.66 Ib per acre, but do not exceed 10.0 Ib total 
per acre per crop cycle. 
~ .Do~~~~:~;'{~U;~~~?~,~,~~~~~ ~'~,'~, I:');; , ;'~ 
',bo nCi"use'lre;!.~ folia&~Jo,,(ee4l'-f fo~e, '" _ % """:.,,."': 
LEX ONE SP, 1& per acre 
Time of Application Irrigated Nonirrigated 
11 
Preemergence-apply willlin 
2 weeks after planting 
5.33 to 8.00 2.66 to 5.33 
or 
Early postemergen~pply 
over cane before weeds 
are 3" tall 
or 
5.33 to 8.00 
Postemergence-apply prior to 2.66 to 5.33 
"close-in" time and before 
weeds are 3" tall 
2.66 to 5.33 
2.66 to 5.33 
In addition to the weeds listed elsewhere in this label, treatment 
of non irrigated cane willl LEXONE SP controls age!arum, spiny 
amaranlll, wild euphoria, fireweed, Flora's paintbrush, Richardia, 
garden spurge, graceful spw:ge, tarweed, guineagrass, plushgrass, 
ricegrass, and wiregrass (goosegrass). In irrigated cane, 
LEXONE SP controls lIle abeve·mentioned weeds plus spleen 
amaranlll, haole koa, hioloa, hila hila, rattlepod, and Alexander 
grass. 
Louisiana and Texas 
Apply 2 to 4lb per acre during lIle faIl after planting but before 
cane emerges, or apply to stubble after harvest Make a second 
application in early spring prior to new cane growlll. Ifnecessary, 
a tlurd application may be made in, late spring at layby . 
• ~ ~~~~~lY}'fi~~~;~t'i~~tr~t~~k,~,~.;,;<~~~,~"¥" " 
, boriOt'exc;;eal.O:"'lbi:o;~i""·1icie'·'··'·' . cle."'" " 
, V·P')Hj'~i"':>~0"~~\t~4~.'F",t~~if"'.m~~~;::~,'/> ,'" ,* '<,' 
DO " eiiWedroli 'focleed f,' , ' . • , ngt!ISJ,~, '" ~,> ~ge, ," ,~or"?~A;'x,~;~~'t,,,( 
In addition to lIle weeds listed elsewhere m this label, treatment 
wIlh LEXONE SP controls curly dock, annual momingglory, 
marestaJl, sowlllistle. and winter oats. 
Louisiana 
For use on fallow ground to be followed by sugarcane, apply 1.33 
to 20 Ib LEXONE SP per acre. Use lIle lower rate If applied less 
lIlan 30 days before planting. ApplIcation should be made after 
lIle rows are built, and the ground should not be disturbed until 
planting. as loss of weed control will result Treatment provides 
short-term control of seedling johnsongrass and other annual 
weeds. To aid in control of johnson grass, stubble sugarcane 
should be destroyed after harvest or in early spring. Land 
should be disked frequently m the spring to control rnizome john­
songross. In late May to early June, rows should be built The soil 
surface should be free of trash and clods. Application of

LEXONE SP should be made at this time. Rhizome johnsongrass 
will not be controlled by LEXONE SP; therefore, spot treatment 
with an appropriate postemergence herbicide will be necessary. 
Florida 
Postemergence over-the-top or directed spray applications of 
LEXONE SP are reconunended for the control of the following 
weeds in sugarcane in Aorida. 
BroadleafWeeds 
Amaranth, Spiny (seedling) Cudweed 
Butterwced 
(Cressleaf groundsel) 
Grasses 
Crabgrass', Large 
Foxtail, Bristlegrass 
Goosegrass 
Purslane 
Panicum, Broadleaf 
Signalgrass, Broadleaf 
"'Best contrul is achieved when applications are made when this 
weed is less than 4 inches in diameter. 
Ground Application: Apply LEXONE SP at 1.33 to 2.661bs per 
acre in one or two applications with a minimum of 14 days 
between each application. Apply when weeds are less than 6 
inches tall in 10 to 40 gallons of spray mixture per acre. 
Postemergence Broadcast or Band: Apply over the top of 
stubble or plant cane while sugarcane is less than 14 incbes 
tall. 
Postemergence Directed Spray: Apply to sugarcane that is a 
minimum of 14 inches tall and before row closing. 
Aerial Applications: Apply LEXONE SPat 133 to 2.0 Ibs per 
acre when weeds are less than 4 inches tall in 5 to 10 gallons of 
spray mixture per acre. Apply to stubble or plant cane while the 
sugarcane is less than 14 inches tall. 
LEXONE SP plus Atrazine Tank Mix: LEXONE SP may be 
used with atrazine as a preemergence or postemergence (before 
row closing) application to sugarcane. Rates for LEXONE SP are 
1.0 to 2.66 pounds per acre and atrazine 80% WP at 2.5 to 5.0 
pounds per acre or atrazine 4L at 2 to 4 quarts per acre. For addi­
tional information on precautions, instructions, limitations, appli­
cation, and weeds conlrolled, refer to the atrazine label. 
TOMATO~S 
LEXONE SP may be applied as a preplant incorporated 
!realment alone or in a tank mix with "1'reflan" EC in irans­
planted tomatoes. LEXONE SP may be ruso be applied alone as a 
postemergence broadcast or directed spray to established 
tomatoes, including seeded established or IranSplanted tomatoes. 
Apply with a properly calibrated low-pressure (20 to 40 psi) 
fixed-boom sprayer with fan-type nozzles. Use \0 to 40 gal of 
water per acre with ground equipment for preplant incorporated 
trealment Use 2() to 5() gal of water per acre for poslemetgence 
broadcast or directed spray application. Do not use air blast or 
other high-pressure spray equipment for postemergence spray 
applications. 
Pre.mergence to Transplanted Tontllloes 
LEXONE SP may be applied alone as preplant incorporated 
lrealment or in a tank mix with "Treflan" EC. Apply 0.33 to 0.66 
Ib LEXONE SP per acre alone or as a tank mix combination with 
"Treflan" EC as a broadcast spray immediately before trans­
planting. Use the higher rate for heavy weed pressure or for 
weeds that are difficult to control. Incorporate unifonnJy to a 
depth of2 to 3". Place iranSplant plugs below the ireatcd zone or 
injury may occur. 
Apply "Trel1an" EC as follows: 
Coarse-textured soils: 1 to 2 pt per acre 
• Medium-textured soils: 1.25 to 2 pt per acre 
• Fine-textured soils: 1.50 to 2 pt per acre 
Consult "1'reflan" EC label for specific use instructions and 
observe all cautions and limitations. When LEXONE SP is tank 
mixed with "1'rel1an" EC, apply immediately after mixing; do not 
allow tank mix to stand ovemight 
Pos/emergence to Established Tontllloes 
Apply 0.33 to 0.661b LEXONE SP per acre over the top of estab­
lished tomato plants. Use the higher rate for heavy weed pressure 
or for weeds that are difficult to control. Apply treatment before 
weeds are 2" tall or aeross, and actively growing. For split appli­
cations, apply 0.33 to 0.5 Ibs per acre per trealrnent, allowing 14 
days between trealrnents. INTERVALS SHORTER THAN 14 
DAYS MAY RESULT IN SIGNIFICANT CROP INJURY 
AND ARE THE RESPONSmILITY OF THE USER. Do not 
exceed 2 broadcast trealrnents per crop season. Use the lower use 
rate on soils of 0.5 to 2.0% organic matter and the higher rate on 
soils with more than 2% organic matter. Do not use with surfac­
tant Do not lreat seeded or iranSplanted tomatoes until plants 
have reached the 5- to 6-leaf stage, or untillranSplants have 
recovered from lransplant shock and new growth has started. To 
avoid crop injury, apply only after at least 3 successive days of 
sunny weather. Do not apply within 24 hours of treatment with 
other pesticides. Do not tank mix with other pesticides. 
12 
Weeds Controlled: 
0.33 to 0.66 Ib LEXQNESP/Age 
Carpetweed, Cheeseweed, Jimsonweed, Lambsquarter, 
Pigweeds, Purslane (Common), Velvetleaf and Wild 
Mustard 
1.0 to ) 33 Ib LEXONE SPI Acre 
Common Ragweed, Pennsylvania Smartweed and Yellow 
foxtail 
Weeds Suppressed:' 
1.0 to ).33 Ib LEXONE SPI Acre 
Bamyardgrass and Hairy Nightshade 
Treat these weeds before they are more than 1" tall in order to suppress 
their growth.

Directed Application to Eslilblished Tomatoes 
Apply 0.66 to 1.33 Ib LEXONE SP per acre as a directed spray 
according to broadcast postemergence application instructions 
above as a single or split application, but do not allow spray to 
contact tomato foliage. Allow 14 days between treatments for 
split applications. This method is recommended for fields with 
heavy weed pressure or weeds that are difficult to control. Use 
the lower use rate on soils of 0.5 to 2.0% organic matter and the 
higher rate on soils with more than 2% organic matter. Do not 
use with surfactant 
WHEAT AND BARLEY 
LEXONE SP is recommended for postemergence use on barley 
(winter and spring) and winter wheat only, do not use on durum 
or spring wheat. Apply using properly calibrated air or ground 
equipment Uniform coverage is essential to obtttin optimum 
weed conlrol and to minimize the potential for crop injury. For 
aerial application, use a minimum spray volume of 3 gal per acre; 
for ground application, use a minimum of 5 gal per acre. 
Apply LEXONE SP before broadleaf weeds emerge or shortly 
after emergence but before weeds are I" tall or across. Apply 
LEXONE SP before grassy weeds emerge or shortly after 
emergence, but before the 3-leaf stage. 
• Use a fall treatment for winter annuals or a spring lrealrnent for 
summer annual broadleaf weeds. 
• A void making applications in midwinter in areas where severe 
winter weather can cause crop stress. 
• Two applications may be made per crop year. Allow at least 
45 days between LEXONE SP applications, except for spring 
split applications which can be as short as 10 days apart provided 
that both applications are made to actively growing, unslressed 
plants. Do not exceed a total of 10.66 oz LEXONE SP per crop 
year. 
• Best results on cheatgrass and downy brome are obtttined with 
fall treatments. 
Tank Mixes 
• LEXONE SP may be tank mixed with fungicides used to 
control Pseudocercosperella herptrichoides foot rot 
• LEXONE SP may be tank mixed with DuPont EXPRESS® 
Herbicide. DuPont FINESSE® Herbicide, OLEAN FC, DuPont 
HARMONY® EXTRA Herbicide, "2,4-D","MCPA", Banvel', 
"Banvel" SOF, Bronate," or Buctril" herbicides. 
Refer to the companion product's label for additional directions, 
rates, weeds controlled, and restrictions. Observe all precautions 
and limitations art product labels. 
Use Rates 
North. In OR. W A IOnS 10 2.0% O.M.l 
I,EXONE SP oz/Acre 
Soil Texture 2-leaf to 3 TiDers' >3TilIers' 
Coarse lto2 4to6 
Medium lto4 4to8 
Fine 2to4 5 t08 
All Areas (1.0 to 2.0% O,MJ 
I,EXONE SP wJAcre 
Soil Texture 2-leafto 3 TiDers' > 3 Tillers' 
Coarse I 10 2 4 10 6 
Medium 
Fine 
All AreaS 1>2.0% O.W 
I to 3 
2103 
4108 
5108 
LEXQNE SP oz/Acre 
Soil Texture 2-leaf to 3 Tillers' > 3 Tillers' 
Coarse 
Medium 
Fine 
lto3 5t08 
2t03 5108 
2to4 8to10.6 
* Use these rates on crops with secondary roots smaller than 1 ". Use LEXONE 
SP alone or in combination with. oth.er herbicides listed in lhis label for early 
season control or suppression of broacileaf weeds and for suppressjon of 
downy bromc:. 
t Use only when crop plants have more than 3 allen; and after secondary roots 
have developed and are larger than 1 II in length throughout the field. 
Low-Rate Use on BroadleafWeeds 
LEXONE SP at rates of 2 to 3 oz per acre may be used alone or 
in a tank mix with Bronate', Buctril', BanveF, "Banvel" SOF, 
2,4-D, MCPA, OLEAN FC, FINESSE, HARMONY EXTRA, or 
EXPRESS 10 control the following broadleaf weeds: 
Chickweed, common Lettuce, prickly 
Fiddleneck, tarweed Mustard, blue 
Henbit Pennycress. field 
Low-Rnte Use on Grass Weeds 
LEXONE SP at rates of2 to 4 oz per acre may be used alone 
following a preemergence FINESSE application, or in a tank mix 
with FINESSE 10 suppress the following grassy weeds in winter 
13 
wheat only: 
Cheatgrass (Cheat) 
Brome, downy 
Brome, Japanese 
Ryegrass, annual' 
Ryegrass, Italian'

In Oklahoma and Texas, apply LEXONE SP at rates of 3 to 
4 oz per acre following preemergence FINESSE application, 
or 3 to 4 oz per acre as a posternergence tank mix with 
FINESSE. Make this application after the crop has reached 
the 4-5 leaf stage and grasses are are 1-3 leaf stage. Make 
application before winter dormancy. 
In other areas, apply to winter wheat after the crop has 
reached the 2-leaf stage but not during winter dormancy. 
Grassy weeds should not exceed the 1- to 3-leaf stage of 
growth. 
Heavy rains iriunediately after application may cause crop 
injury. 
Consult FINESSE label for further instructions on 
LEXONEIFINESSE combinations. 
ROTATIONAL CROP GUIDELINES 
LEXONE SP ALONE 
Tbe following table shows minimum reeropping intervals 
following LEXONE SP application:' 
4 months 
Alfalfa 
Asparagus 
Barleyt 
Cornu 
Faragegrasses 
Potatoes** 
Sainfoin 
Soybeans** 
Sugarcane** 
Tornatoes* 
Wheatt 
Smooths 
Barley 
Cotton 
Lentils 
Peas 
Peanuts 
Rice 
Wheat 
12mooths ISmooths 
Crops not listed Onions 
(except root Sugarbeels 
crops) Other root 
crops 
* Cover crops for soil building or erosion control may be planted anytime. but 
do not graze or harvest. for food or feed. Stand raluction may occur in .some 
areas. 
t Following peas,lentils. or soybeans" 
:j: Interval for planting is 90 days in fall-bedded fields in California 
(tomatoes). 
** If initiaJ seeding fails to produce a stand. crops registered for the rate of 
LEXONE SP that has been applied may be replanted into the treated area. 
Do not retreat during the same crop year as injury to the crop may result 
Tank Mixes 
For tank mixes, consult the labels of herbicides used in the tank 
mix for replanting and recropping guidelines. Observe the most 
restrictive provisions. 
14

SPRAY DRIFT MANAGEMENT 
The interaction of many equipment and weather-related factors 
determines the potential for spray drift The applicator is respon­
sible for considering all these factors when making application 
decisions_ 
AVOIDING SPRAY DRIfT IS THE RESPONSIBILITY OF 
THE APPUCATOR. 
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 control and coverage. APPLYING 
LARGER DROPLETS REDUCES DRIfT POTENTIAL, BUT 
WILL NOT PREVENT DRIfT IF APPUCATIONS ARE 
MADE IMPROPERLY OR UNDER UNFAVORABLE ENVI­
RONMENT AL CONDmONS! 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 higbest 
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 PRESSURR 
• 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. 
Controlling Droplet Size - Aircraft 
• Number of Nozzles - Use the minimum nurober of nozzles 
with the highest flow rate that provide uniform coverage. 
• Nozzle Orientation - Orienting nozzles so that the spray is 
emitted backwards, parallel to the airstream will produce larger 
droplets than other orientations. 
• Nozzle Type - Solid stream nozzles (such as disc and core with 
swirl plate removed) oriented straight back produce larger 
droplets than other nozzle types. 
• Boom Length - The boom length should not exceed 314 of the 
wing or rotor length - longer booms increase drift potential. 
• Application Height - Application more than lOft above the 
canopy increases the potential for spray drift 
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 equipmen~ the boom should 
remain level with the crop and have minimal bounce. 
WIND 
Drift potential increases at wind speeds of less lIIan 3 mph (due to 
inversion potential) or more lIIan 10 mph. However, many 
factors, including droplet size and equipment type determine drift 
potential at any given wind speed. AVOID GUSTY OR 
WINDLESS CONDmONS. 
Note: Local terrain can influence wind patterns. EveI)' appli­
cator should be familiar with local wind patterns and how they 
affect spray drift 
TEMPERATURE AND HUMIDITY 
When making applications in hot and dl)' conditions, set up 
equipment to produce larger droplets to reduce effects of evapo­
ration. 
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 altirude and are 
common on nights with limited cloud cover and light to no wind. 
They begin to form as lIIe sun sets and often continue into the 
morning. Their presence can be indicated by ground fog; 
however, if fog is not presen~ 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 lIIat moves upward and rapidly dissipates 
indicates good vertical air mixing. 
SHIELDED SPRAYERS 
15 
Shielding lIIe 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 
AIR ASSISTED (AIR BLAST) 
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 unsuitable for the application and/or 
set up improperly, high drift potential can result It is the respon­
sibility of lIIe applicator to determine that a sprayer is suitable for 
the intended application, is configured properly, and IIIat drift is 
not occurring. 
Note: Air assisted field sprayers can affect product performance 
by affecting spray coverage and canopy penetration. Consult the 
application equipment section of this label to determine if use of 
an air assisted sprayer is recommended. . 
RESISTANCE 
When herbicides willi lIIe same mode of action are used repeat­
edly over several years to controlllle same weed species in the 
same field, naturally-occurring resistant weed biotypes may 
survive a correctly applied herbicide treatment, propagate, and 
become dominant in lIIat 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.

INT!=GRATED PEST MANAGEMENT 
DuPont recommends the use of Integrated Pest Management 
(lPM) programs to control pests, This product may be used as 
part of an Integrated Pest Management (lPM) program which can 
include biological, cultural, and genetic practices aimed at 
preventing economic pest damage. Application of this product 
should be based on !PM principles and practices including field 
scouting or other detection methods, correct target pest identifica­
tion, population monitoring, and treating when target pest popula­
Uons 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 or site 
systems in your area-
PRECAUTIONS 
STORAGE AND DISPOSAL 
Storage: Store the product in the original container 
only. Do not contaminate water, other pesticides, 
fertilizer, food, or reed in storage. Avoid contact with 
water. Do not store above 122'P for extended periods 
of time. If container is damaged or a spill occurs, use 
product immediately or contain with absorbent 
materials and dispose of waste. Dispose of waste in 
compliance with local, state and federal regulations. 
Product Disposal: Pesticide, spray mixture, or rinsate 
that cannot be used according to label instructions 
must be disposed of according to applicable Pederal, 
state, or local procedures. 
Container Disposal (Water soluble packaging): 
Do not reuse the outer box or the reseal able bags. 
When all water-soluble packets are used, the outer 
packaging should be clean and may be disposed of in a 
sanitary landfill, or by incineration, or, if allowed by 
state and local authorities, by open burning. If it is 
burned, stay out of the smoke_ If the resealable bag 
contacts the formulated product in any way, the bag 
must be triple-rinsed with clean water. Add the rinsate 
to the spray tank and dispose of the outer wrap as 
described above. 
NOTICE TO BUYER: Purchase oflhis matenal does not 
confer any rights under patents of countries outside of the United 
StateS. 
16

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 condi· 
tions, soil factors, off target movement, 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. 
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 reason· 
ably fit for the purpose stated in the Directions for Use, 
subject to the inherent risks described above, when used 
in accordance with the Directions for Use under normal 
conditions. 
DUPONT MAKES NO OTIiER rocPRESS OR 
IMPLIED WARRANTY OF mNESS 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 EXCLUSIVE 
LIABILITY OF DUPONT OR SELLER, FOR ANY 
AND ALL CLAIMS, LOSSES, INJURIES OR 
DAMAGES (INCLUDING CLAIMS BASED ON 
BREACH OF WARRANTY OR CONTRACT, NEGLI­
GENCE, 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 OFTHE PRODUCT. 
DuPont or its Ag Retailer must have prompt notice of any 
claim so that an immediate inspection of buyers 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. 
1 Registered trademarks ofDowElanco Products Co. 
2 Registered trademark of AmeriCan Cyanamid Co. 
3 Paraquat is a restricted use pesticide. 
4 Registered trademark of Monsanto Co. 
5 Registered trademark of Novartis. 
6 Registered trademark of Zen=, Inc. 
7 Registered trademark of Bayer AG. 
8 Registered trademark of FMC. 
9 Registered trademarlc of BASF. 
to Registered trademark of Rhone·Pottlenc. 
D - 634 060998 
For product information call 1-888-6-DUPONT 
© 1998 E. I. du Pont de Nemours and Company, Agricultural Products, Wilmington, Delaware 19898 
17 
)9./ {&