crop-chem-docs/corpus/epa_ppls/279-3184.md

# SKIRMISH HERBICIDE

- EPA Reg No: **279-3184**
- Registrant: FMC CORPORATION 
- Signal word: Caution
- Active ingredients: Chlorimuron (25%)
- Label accepted: 1997-02-27
- Source PDF: https://www3.epa.gov/pesticides/chem_search/ppls/000279-03184-19970227.pdf

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(under FIFRA, as amended) 
U.S. ENVIRONMENTAL PROTECTION AGENCY 
Office of Pest;cfde Programs 
Registration Div!sion (75D5C) 
401 "MM St~, s.w. 
Washington, D.C. 20460 
NOTICE OF PESTICIDE: 
~ Registration 
____ Reregistration 
Name aOO Address of Reghtrant (include ZIP Code): 
DC Corporation 
Agricultural Products Group 
1.735 Market street 
Philadelphia, PA 1.91.03 
ATTN. : Dr. Callista O. chukwunenye 
fill 2.5 .27'1- 311f"f 
EPA Reg. NlMIber: Date of Issuance: 
279-31.84 FEB 27_ 
Term of Issuance: Conditional 
Name of Pesticide Product: 
Skirmish
h 
Herbicide 
T ~ongea fnlebellng differing !n albotancefi<iOl>thotaeeepted in conn.ctlonwith thiioreglsqatlonlllil(be .t.iJiII!fted t6' -­
_ .. _tedby the Registration Division prior to ...... Qfthe lebel In cOIIIIletce.ln.IKrf corr...,.,ndeni:eon thIs produCt·.lI .. ~ 
~ff~[;;i~_.t~~~f1!.£PA regi~t".tlon ~.~i-~>, ......... ··.i. i'" .• >t ... r. '., ',> '. ,;",." . 
On the besil of inforMation furnfshed by the registrant, the above named pesticide is hereby registered/reregistered under the 
Federal Insecticide, FU'lgicide and Rodenticide Act. 
I Registration is In no way to be construed 8S an en:cJorsement or recomnendation of this product by the Agency. In order to 
protect health aOO the envirorment. the Acininistrator. on his motion, may at any time suspend or cancel the registratfon 011 • 
pesticide in accordance with the Act. The acceptance of any name 1n cornection with the registration of • product lIlder this 
Act fs not to be construed as giving the regfstrant a rfght to exclusive use of the name or to its use ff ft has been covel"eeI by 
others. 
This product is conditionally registered in accordance with FIFRA se(:. 
3(C) (7)(A) provided that you: 
1. Submit and/or cite all data required for registration of your producl: 
under FIFRA sec. 3(c)(5) when the Agency requires all registrants of 
similar products to submit such data; and submit acceptable responses 
) required for reregistration of your product under FIFRA section 4. 
2. Mak~ the following label changes: Revise the EPA Registration Number 
to read, "EPA Reg. No. 279-31.84". 
3. Submit two copies of the revised final printed label for the record. 
If these conditions are not complied with, the registration will be 
,subject to cancellation in accordance with FIFRA sec. 6(e). Your release 
for shipment of the product constitutes acceptance of these conditions. 
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A stamped copy of the label is enclosed for your records. 
'~S7i~~~tu~r~.-O~f~App-=r~O~V~i~~O~I~f7ic~i~.7l-:-------------------------------,r7oa~t~e~:----------------------------------~ 
-(JZ~~ It. ~ ~ 
Product Manager (25), Fungicide-Herbicide 
Branch, Registration Division (75'05C)_ 
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herb • J. C ide 
Dispersible Granules 
Active Ingredient By Weight 
Chlorimuron Ethyl 
Ethyl 2-[[[[( 4-chloro-6-methoxypyrimidin- 2-
yl)amino )carbony I) amino )sulfonyl)benzoate 25.0% 
Inert Ingredients 75.0% 
Total 100.0% 
EPA Reg. No. 279-XXXX 
U.S. Patent No. 4,394,506 & 4,547,215 
CCEPTED 
FEB 211991 
Net Contents 
FMC Corporation 
Agricultural Products Group 
Philadelphia PA 19103 
KEEP OUT OF REACH OF CHILDREN 
CAUTION 
PRECAUTIONARY STATEMENTS 
HAZARDS TO HUMANS 
AND DOMESTIC ANIMALS 
Cantlon! May irritate eyes, nose, throat and skin. 
May be harmful if absorbed through skin. A void breathing 
dnst or spray mist. 
Avoid contact with skin, eyes. and clothing. Get medical 
attention if irritation persists. 
STATEMENT OF PRACTICAL TREATMENT 
IF IN EYES: Flush eyes with plenty of water. Call a 
physician if irritation persists. 
IF ON SKIN: Wash with plenty of soap and water. Get 
medical attention if irritation persists. 
For medical emergencies Involving this 
product, call toll-free 1-800-331-3148. 
PERSONAL PROTECTIVE EQUIPMENT 
Applicators and other handlers must wear: 
Long-sleeved shirt and long pants. 
Waterproof gloves. 
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. 
ENGINEERING CONTROL STATEMENTS 
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 part 170 Section 170.240 (d)(4-6)). the 
handler PPE requirements may be reduced or modified as 
specified in the WPS. 
USER SAFETY RECOMMENDATIONS 
USERS SHOULD: Wash hands before eating. 
drinking. chewing gum, using tobacco or using the 
toilet. 
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 when disposing of 
equipment washwaters. 
2197 Oraft 
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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 person,. either directly or L'>rough drifL Only 
protected handlers may be in the area during application. For 
any requirements specific to your State or Tn'be, consult the 
agency responsible for pesticide regulation. 
AGRICULTURAL USE REQUIREMENTS 
Use this product only in accordance with its labeling and 
with the Worl<er 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 12 hours. 
PPE required for early entry to treated areas that is 
permitted under the Worker Protection Standard and that 
involves contact with anything that has been treated, such 
as plants, soil, or water, is: 
Coveralls. 
Waterproof gloves. 
Shoes plus socks. 
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Use only in the geographies identific:d in the «Rotational 
Crop Guidelines" section of this label. 
APPLICATION INFORMATION 
SKIRMISH Herbicide is a dispersible granule formulation 
to be mixed with water and sprayed for selective 
") postemergence weed control of many broadleaf weeds and 
_, yellow nutsedge in soybeans. 
SPEGIFIC USES - SOYBEANS 
Timing to Weeds 
Apply SKIR.\ITSH when wel!ds a!'':: young and actively 
growing (after the first true leaves have expanded. but 
before the \.vec:ds exceed the size indicated below). 
Applications. made to weeds larger than the sizes 
indicated below. or to weeds under stress may result in 
unsatisfactory control. 
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Cultivation 
Do not cultivate within 7 days of application. Cultivation 
may put weeds under stress by pruning roots, thus 
diminishing control. 
Cultivation approximately 14 days after application will 
help control suppressed weeds. 
Rate 
When applied as directed, SKIRMISH will control the 
following weeds: 
HEIGlIT (Jn~b!:il 
112 oz 2!3oz 3/40z 
WEEDS fA fA fA 
Beggarticks (Bidens sE) 2-4 2-6 2-8 
Bristly Starbur 1-2 1-3 1-4 
Cocklebur 2-6 2-8 2-12 
Cow~a 2-5 2-6 
Florida Beggarweed 2-4 2-5 2-6 
Heme Sesbania 2-4 2-5 2-6 
Jerusalem Artichoke 
(above ll!:0und Eorlion) 2-13 
Jimsonweed 2-4 2-5 2-6 
Marestail 2-3 2-5 2..{j 
Momingglory' (annual) 
Entireleaf 1-2 1-3 1-4 
Ivyleaf 1-2 1-3 1-4 
Pitted 1-2 1-3 1-4 
Smallflower 1-2 1-3 1-4 
Tall 1-2 1-3 1-4 
Mustard 4" 5"" 6·-
Pigweed 
Redroot 1-2 1-3 1-4 
Prickly Lettuce 2-4 2..{j 
Ragweed 
Common 2-3 2-4 
Giant 2-4' 2-6 
SickleEod* 1-2 1-3 1-4 
Smartweed 
Ladysthumb 1-2 1-3 1-4 
Penns1:1vania 1-2 1-3 1-4 
Sunflower 2-5 2..{j 2-8 
Wild Poinsettia 1-2 1-4 
Yellow Nutsedge 2-3 2-3 2-4 
Velvetleaf*** 2-4 2..{j 
* See Split Applications section. 
** Diameter 
*** Include an ammonium nitrogen fertilizer. 
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When applied as directed, SKIRMISH will suppress the 
following weeds: 
HEIGHT ancbes) 
') WEEDS 
Inoz 
IA 
213 oz 
IA 
3/40z 
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Burcucumber'" 
Canada TIllstle 
Purple Nutsedge 2-3 
Smooth Pigweed 1-2 
• See Split Applications section. 
** Diameter 
2-3 
2-3 
2-4 
1-3 
*.* Include an ammonium nitrogen fertilizer., 
Split Applications 
2--{'i 
2-4 
2-5 
1-4 
A second application of SKIRMISH may be made 2-3 weeks 
after the initial application to control weeds with multiple 
germination flushes or suppressed weeds such as burcucumber, 
cocklebur, cowpea, giant ragweed, momingglory, pigweed, 
sicldepod, and velvetleaf. Do not make more than 2 
applications of Skinnish in a single season. 
Spray Additives 
• Use adjuvants that contain only EPA-exempt ingredients 
(CFR 40180.1001) 
Nonionic Suifactant 
Use only products that contain at least 50% nonionic 
surfactant as the active ingredient 
Use only EPA approved surfactants authorized for use on 
food. 
Avoid products that do not adequately define their ingredients 
on the product label. 
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Crop Oil Concentrate 
• Apply crop oil concentrate at 1.0% vlv (8 pt per 
100 gal of spray solution). 
Use a good-quality, petroleum-based or methylated seed 
oil-based crop oil concentrate with at least 
14% emulsifiers and 80% oil. 
• Crop oil concentrate may increase the potential for crop 
injury in soybeans. 
Ammonium Nitrogen Fertilizer 
In addition to a nonionic surfactant or crop oil concentrate. an 
ammonium nitrogen fertilizer is required to control velvetleaf. 
• Alternately, a hlgh-quality, spray able grade of ammonium 
sulfate (21-0-0) may be used at a rate of 2-4 Ib per acre. 
Use the lower rate of fertilizer for spray volumes of less 
than 15 gal per acre. 
Soybean Tank Mix Applications 
SKIRMISH and Postemergence Grass Herbicides 
Refer to labels of all products in the tank mix for information 
regarding rates, rotational cropping recommendations, sprayer 
clean-up use precautions, and other information. The most 
resnictive provisions apply. 
The types of grass present determine the amount of 
MATADOR to be tank mixed with SKIRMISH. When 
applied as directed, a tank mix of SKIRMISH and 
MATADOR will control the following grasses: 
SKIRMISH + 5 oz of Matador per acre 
Grass Height (Inches) 
Com, Volunteer 6-18 
Giant Foxtail 2-4 (pretiller) 
Seedling, Johnsongrass 2-8 
Shattercane 6-12 
SKIRMISH + 7 <>z <>f Matador per acre 
Grass Height (Inches) 
Giant Foxtail 2-8 
Wild Proso Millet 2-6 
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SKIRMISH + 8 oz of MATADOR per acre 
Grass Height (Inches) 
Crowfoot Grass 2-6 
Fall Panicum 2-6 
Green Foxtail 2-4 
Bristly Foxtail 2-4 
Goosegrass 2-4 
Itchgrass 2-8 
Field Sandbur 2-6 
Sprangletop 2-6 
Volunteer Cereals 2-6 
Wild Oats 2-6 
Witchgrass 2-6 
SKIRMISH + 10 oz of MATADOR per acre 
Grass Height (Inches) 
Junglerice 2-6 
Jolmsongrass. Rhizome 10-24 
For best results apply Skinnish 7 days before or 1 day after the 
grass herbicide. Refer to the grass herbicide label for 
precrutions and specific use information. 
Under certain conditions SKIRMISH may reduce the activity of 
the grass herbicide. The broadleaf activity of SKIRMISH will 
not be affected. 
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SKIRMISH + Cobra' 
Waterhemp and Nightshade 
Prickly Sida and Hemp Sesbania 
For control of Prickly Sida and Hemp Sesbania use a tank mix 
at the rate of 112 oz SKIRMISH and 8.0 to 12.5 fl oz of 
"Cobra"per acre. Use the higher rate of "Cobra" when 
Prickly Sida and Hemp Sesbania are heavy or Prickly Sida 
and Hemp Sesbania approach the maximum size of I" or 4". 
Include a nonionic surfactant at I to 2 pt per 100 gal of spray 
solution (minimum of 0.125% v/v actual snrfactant). Do 
not use crop oil concentrate when tank mixing SKIRMISH 
+ "Cobra" at these rates. 
• Tank mix applications of SKIRMISH + "Cobra" 
may not control weeds listed on the Skinnish label 
as completely as applications of Skinnish alone. 
Soybean Precautions 
• Temporary leaf yellowing andlor retardation of 
soybean growth may occur following application of 
SKIRMISH. These effects will generally be most 
evident 5-7 days after application to soybeans under stress. 
Under favorable soybean growing conditions, the crop will 
quickly recover. 
Do not graze treated fields or harvest for forage or hay. 
• SKIRMISH should not be used on soils with a history 
of nutrient deficiency (such as iron chlorosis). Crop injnry 
may occur. 
• Do not apply to land that has been or will be treated with 
DuPont GLEAN". ALL yo. or FINESSE" Herbicides in the 
states of Kansas, Nebraska, North Dakota, or South Dakota 
without carefully observing the rotational crop intervals for 
those products. 
Do not tank mix SKIRMISH with organophosphate 
insecticides or apply Skirmish within 14 days before or after 
an application of an organophosphate insecticide. as severe 
crop injnry may occur. 
MIXING INSTRUCTIONS FOR SOYBEANS 
The following steps should be followed when preparing to 
spray SKIRMISH: 
I. Fill the spray tank 114 to 1/3 full of water. 
2. While agitating. add the required amount of SKIRJ,,!lSH. 
3. Continue adequate agitation. 
4;SKIRMISHsoouldbetliorotighly riiiXedwith 'watefiii· ! 
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5. Apply SKIR~!lSH spray preparation within 24 hours of 
product mixing. or product degradation may occur. 
6. If me mixture has settled~ thoroughly reagitate 
before using. 
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APPLICATION EQUIPMENT 
Ground Application (See Also Spray Drift) 
Broadcast Application 
Band Application 
o Because band applicators spray a narrower area than 
broadcast applicators, use proportionately less spray 
solution for band applications. 
Carefully calibrate the band 
applicator to not exceed the labeled rate. 
o Flat fan nozzles are preferred. 
o Carefully follow the nozzle manufacturer's instructions for 
nozzle orientation, distance of the nozzles from the crop 
and weeds, spray volumes, calibration, and spray pressure 
for band applications. 
') Aerial Application (See Also Spray Drift) 
o Use nozzle types and arrangements that will provide 
optimum spray distribution and maxinaum coverage at 3-5 
gal per acre. 
o Use a minimum of 3 gal water per acre. Under heavy weed 
pressure or dense crop foliage, increase the minimum spray 
volume to 5 gal per acre. 
• Do not apply during a temperature inversion, when winds 
are gusty, or when other conditions could produce poor 
coverage andlor off-target spray movement. 
ENVIRONMENTAL CONDITIONS AND 
BIOLOGICAL ACTIVITY 
SKIR..\1ISH rapidly inhibits the growth of susceptible weeds. 
Leaves of susceptible plants yellow 3-5 days after application, 
followed, in controlled plants, by the death of the growing 
point. SKIRMISH will provide complete control of 
susceptible weeds in 7-21 days. Suppressed plants may 
remain green but will be stunted and noncompetitive. 
) SKIRMISH will provide best results when applied to young, 
actively growing weeds. Degree of control depends on: rate 
used; weed spectrum; weed size (if weeds are large, use 
higher rates and spray volume); growing conditions at and 
following treatment; soil moisture; precipitation; and spray 
adjuvants. Treating weeds under stress or large weeds may 
result in only partial control. Stress may be caused by: 
abnormal weather (hot or cold) 
mechanical injury from cultivation 
drought 
water-saturated soil 
disease 
• insect injury 
prior herbicide injury 
Stress affects some weeds, such as pigweed. more than others. 
Delay application until stress passes and weeds start to grow 
again. 
Severe stress (drought, disease. insect damage, or nutrient 
deficiency such as iron chlorosis) following application may 
also result in crop injury andlor poor weed control. 
Do not apply SKIRMISH if rain is expected within 1 hour or 
weed control may decrease. . " 
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ROTATIONAL CROP GUIDELINES 
• Rotation or crop intervals must be followed. 
Rotational Crop Groups A,B&C 
(Refer to specific state geographies in descJ1>tions below) 
Region A: The states ofIowa (Fields located within the 
boundaries ofthe Clarion-Nicollet-Webster and Hamburg­
Ida-Monona soil associations or fields located within the 
historic flood plain of the Missouri River.), Minnesota 
(Fields south of Route 27 or east of Route 71.), Nebraska 
(Fields north of Route 30 or west of Route 281.), New 
York, South Dakota, and Wisconsin. 
Region B: The states of Delaware, Illinois, Indiana, Iowa 
(Fields located outside the boundaries of the Clarion­
Nicollet-Webster and Hamburg-rda-Monona soil 
associations and fields located outside the historic flood 
plain of the Missouri River.), Kansas, Kentucky. Maryland, 
Michigan (Fields north of Interstate 96 or per supplemental 
labeling.), Missouri (Except the Bootheel), Nebraska (Fields 
south of Route 30 and east of Route 281.), New Jersey, 
Ohio, Pennsylvania, Virginia, and West Virginia. 
Region C: The states of Alabama (Except the ''Black Belt" 
where soil pH must be less than 7.0.), Arkansas, Florid., 
Georgia, Louisiana, Missouri (Bootheel region only), 
Mississippi (Except the "Black Belt" where soil pH must be 
less than 7.0.), North Carolina, Oklahoma, South Carolina, 
Tennessee, Texas (Fields east of Route 183.), 
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Follow Recrop Interval I if: 
• The field is located in a "Region A" state (all pH soils) 
AND 
• A single application of SKIRMISH with a total rate of no 
more than 1I3 ozJacre for the growing season applied. 
Follow Recrop Interval 2 if: 
• The field is located in a "Region B" state (all pH soils) 
AND, ElTIIER 
• A maximum of 2 applications of SKIRMISH with a total 
rate of no more than 1.0 ozJacre for the growing season 
are applied. 
Follow Recrop Interval 2 if: 
• The field is located in a "Region B" state with soil pH 
7.0 or less 
AND, EITIIER 
A maximum of 2 applications of SKIRMISH with a total 
rate of no more than 1.5 ozJacre for the growing season 
are applied. 
Follow Recrop Interval 3 if: 
• The field is located in a "Region C' state (all pH soils 
except those with pH greater than 7.0 in the Black Belt 
region of Alabama and Mississippi) 
AND, EITIIER 
• A maximum of 2 applications of SKIRMISH with a total 
rate of no more than 1.5 ozJacre for the growing season 
are applied. 
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Crop Intervall Interval 2 lnterval'3 
Soybeans Anytime 
Cereal Grains 
Pasture Grasses 
(such as Fescue 
and Ryegrass) 
Dry Beans 
Kidney Beans 
Peas 
Snap Reans 
Field Com (IR) 
Field Com" 
(States in 
Regions A and B) 
Field Corn" 
(States of AR, 
MO (Bootheel only), 
NC, OK, 1N, and TX) 
Field Corn" 
(States of AL, Fl., 
GA, LA, MS, and SC) 
Sweet Com+ 
(States in Region A) 
Popcorn 
Sorghum 
Tobacco (transplant) 
Tomato (transplant) 
Peanuts 
Rice 
Cotton 
Alfalfa 
Clover 
Cucumber 
Sunflower 
Watermelon 
Cabbage 
Canola (Rapeseed) 
Flax 
Lentils 
Mustard 
Pumpkins 
Carrots 
Onions 
Potatoes 
Sugar Beets 
Any crop not listed 
3 
9 
8 
9 
9 
15 
6 
9 
9 
9 
9 
18 
30 
Anytime Anytime 
3 3 
9 9 
8 7 
9 
8 
7 
9 9 
15 6 
15 9 
9 8 
12 9 
18 18 
18 18 
30 30 
.. If SKlR.\I(ISH is .l~plied after August 1. extent! rotational crop intervals 
2 months for J..!fuJ.fa. clover. com (non·1R), cotton. popcorn, rice, 
sorghum,. tobacco. and tomato. 
nThe term "Field Com" is defined to include only that corn grown for 
grain orsilag'! or for seed corn relative to the Rotiltiona! Crop 
Guidelines section of !his label. 
+ Rotational crop intervals ilre for processing Sweet Com varieties only. 
The rotational crop interval for Olher Sweet Corn varieries is 1 S. months. 
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THE IMPORTANCE OF SOIL PH 
Soil pH varies greatly, even within the same field. pH 
variations as much as 2 pH units are common. Composite 
soil samples taken across an entire field. such as those 
samples taken for soil fertility recommendations, may not 
detect areas of high pH. Subsarnpling is recommended for 
areas likely to have pH values higher than the field average. 
The following is a non-inclusive list of potential high pH 
areas where subsampling is recommended. 
Where different soil types are evident within a field, 
sample soil types separately. 
• Where conditions vary within a field, sample areas 
separately, such as: 
areas bordered by limestone gravel roads, 
river bottoms subject to flooding, 
- low areas in hardpan soils where evaporative ponds may 
occur, 
- eroded hillsides, 
- along drain tile lines, and 
- areas where drainage ditch spoil has been spread. 
Where lime has not been deeply incorporated, soil may 
exhibit significantly higher pH values in the upper 3 inches 
of soil. Composite soil samples taken at a 6-8 inch depth 
may not reflect the elevated pH near the surface. In these 
cases shallow sampling, the upper 3 inches, is ad vised. 
Determine soil pH by laboratory analysis using a I: I 
soil:water suspension. 
SPRAYER PREPARATION AND CLEANUP 
Prior to application of SKIRMISH, start with clean, well 
maintained application equipment. Immediately following 
application, thoroughly clean all application equipment. 
Postponing action, even for a few hours, only makes 
effective cleanup more difficult. Failure to clean spraying 
equipment thoroughly may result in injury to subsequently 
sprayed crops. 
When spraying multiple loads of SKIRMISH over an 
extended period of time, rinse the equipment with clean 
water at the end of the day. Leave water in the equipment 
overnight to prevent deposits from drying on surfaces. 
When applications of SKIRMISH are completed and prior to 
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using the sprayer and associated equipment for other 
products or for crops other th,n soybeans, thoroughly clean 
. the equipment using the procedure below. 
STEP I: Drain spray equipment. Thoroughly rinse sprayer, 
and.flush hoses, boom and nozzles with clean 
water. 
Loosen and physically remove visible deposits. 
STEP 2. Fill the sprayer with clean water and add household 
ammonia (one gallon of 3% active for every 100 
gallons of water). Rush hoses, boom and nozzles. 
Tum off the boom and tOP off the~anK with clean 
water. Circulate through the sprayir.g system for 
15 minutes. Rush the hoses. boom and nozzles 
with the cleaning solution. Drain the tank. 
STEP 3. Remove and clean nozzle. screens and strainers in a 
bucket of fresh cleaner and water. 
STEP 4. Repeat STEP 2. 
STEP 5. 'Thoroughly rinse the sprayer, hoses, boom and 
nozzles with clean water. several times. 
Clean all other associated application equipment. Take all 
necessary safety precautions when cleaning equipment. Do 
not clean near wells, water sources or near desirable 
vegetation. Dispose of waste rinse water in accordance"with 
local regulations. 
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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 appIication decisions. 
A VOlDll'<G SPRAY DRlFT 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 hest 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 DRlFT POTENTIAL, BUT WILL NOT 
PREVENT DRlFT IF APPUCA TrONS ARE MADE 
Th1PROPERL Y OR UNDER UNFAVORABLE 
ENVIRONMENTAL CONDmONS! See Wind, 
Temperature and Humidity, and Temperature Inversloru, 
sections of this label. 
Controlling Droplet Size - General Techniques 
• Volnme - 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. 
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Controlling Droplet Size - Aircraft 
.. Number of Nozzles - Use the minimum number of 
nozzles with the highest flow rate that provide uniform 
coverage. 
Nozzle Orientation - Orienting nozzles so that t;"e spray 
is emitted backwards, parallel to the airstream will 
produce larger droplets than other orientations. 
Nozzle Type - Solid slream 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 3/4 
of the wing or rotor length - longer booms increase drift 
potential. 
• Application Height - Application more than 10 ft above 
the canopy increases the potential for spray drift. 
BOOM HEIGHT 
Setting the boom at the lowest labeled beight (if specified) 
which provides uniform coverage reduces the exposure of 
droplets to evaporation and wind. For ground equipment, 
the boom should remain level with the crop and have 
minimal bounce. 
WIND 
Drift potential increases at wind speeds ofless 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. AVOID 
GUSTY OR WINDLESS CONDmONS. 
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 oot 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 doud (under low wind conditions) indicates 
an inversion, while smoke that moves upward and rapidly 
dissipates indicates good vertical air mixing. 
SHIELDED SPRAYERS 
Shielding rhe boom or individual nozzle:>. can reduce the 
df~cts of wind. However, it is the responsibility r:-f the 
applicator to verify that the shields are preventing drift and 
not interfering with uniform deposition of the product. 
'. . 
II 
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 andlor set up improperly, high drift potential can 
result. It is the responsibility of the applicator to. determine 
that a sprayer is suitable fo.r the intended application, is 
configured properly, and that drift is not occurring. 
Note: Air assisted field sprayers can affect product 
perfo.rmance by affecting spray co.verage and canopy 
penetration. Consult the application equipment section of 
this label to determine if use of an air assisted sprayer is 
recommended. 
IMPORTANT PRECAUTIONS 
Do not apply this product through any type of irrigation 
system. 
Injmy to or loss of desirable trees or vegetatio.n may result 
from failure to. observe the follo.wing: 
• Do no.t apply SKIRMlSH or drain or flush equipment on 
or near desirable trees or other plants, 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 spray drift to. desirable plants. 
• Do not contaminate any body of water. 
• Do not mixIIoad, or use within 50 feet of all wells 
including abandoned wells, drainage wells, and sink 
holes . 
• Avo.id storage o.f pesticides near well sites. 
• Keep SKIRMISH from coming in contact with fertilizers, 
insecticides, fungicides, and seeds during sto.rage. 
• Thoroughly clean all application equipment immediately 
after use and prior to spraying crops other than soybeans 
or peanuts. 
• Calibrate sprayers only with clean water away from the 
well site. 
INFORMATION ON RESISTANT WEEDS 
When herbicides with the same mode of action are used 
repeatedly over several years to control the same weed 
species in the same field, naturally-occurring resistant weed 
bio.types may survive a correctly applied herbicide 
Ireatment, propagate, and become dominant in that field. 
These resistant weed biotypes may not be adequately 
controlled. Cultural practices such as tillage, preventing 
weed escapes from going to seed, and using herbicides with 
different modes of action within and between crop seasons 
can aid in delaying the proliferation and possible dominance 
of he:bicide resistant weed biotypes. 
\ 
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I().rf.c 
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STORAGE AND DISPOSAL 
Storage: Store product in original container only. Do 
not contaminate water, other pesticides, fertilizer. food 
or feed in storage. 
Product Disposal: Do not contaminate water, food or 
feed by disposal. Wastes resulting from the use of this 
product may be disposed of on site or at an approved 
waste disposal facility. 
Container Disposal: Triple rinse (or equivalent). 
Then offer the container for recycling or 
reconditioning. or puncture and dispose of in a sanitary 
landfill, or incinerator. Or, if allowed by state and local 
authorities, the container can be burned on site. If 
burned, stay out of smoke. 
Notice to Buyer: Purchase of this material does not confer any 
rights under patents of countries outside of the United States. 
Use of this quantity of purchased Skirmish herbicide is 
permitted under claim 24 of U.S. Patent 5,084,082. 
Registered trademark of Valent USA Corporation 
Registered trademark of DuPont 
'. . 
Dealers Should Sell in Original Packages Only. 
Terms of Sale or Use: On purchase of this product 
buyer and user agree to the following conditions: 
\Varranty: FMC makes no warranty, expressed or 
implied. concerning the use of this product other than 
indicated on the label. Except as so warranted the 
product is sold as is. Buyer and user assume all risk of 
use andlor handli ng and/or storage of this material when 
such use andJ or handling and/or storage is contrary to 
label instructions. 
Directions and Recommendations: Follow directions 
carefully. Timing and method of application, weather and 
crop conditions, mixture with other chemicals not 
specifically recommended and other influencing factors 
in the use of this product are beyond the control of the 
seller and are assumed by the buyer at his own risk. 
Use of Prodnct: FMC's recommendations for the use of 
this product are based upon tests believed to be reliable. 
The use of this product being beyond the control of the 
manufacturer, no guarantee, expressed or implied is 
made as to the effects of such or the results to be 
obtained if not used in accordance with directions or 
established safe practice. 
Damages: Buyer's or user~s exclusive remedy for 
damages for breach of warranty or negligence shall be 
limited to direct damages not exceeding the purchase 
price paid and shall not include incidental or 
consequential damages. 
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