crop-chem-docs/corpus/epa_ppls/1381-235.md

# METSULFURON METHYL 60% HERBICIDE

- EPA Reg No: **1381-235**
- Registrant: WINFIELD SOLUTIONS, LLC
- Signal word: Caution
- Active ingredients: Metsulfuron-methyl (60%)
- Label accepted: 2008-02-26
- Source PDF: https://www3.epa.gov/pesticides/chem_search/ppls/001381-00235-20080226.pdf

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u.s. ENVIRONMENTAL PROTECTION AGENCY 
Office of Pesticide Programs 
Registration Division (7505C) 
401 "M" St., s.w. 
washington, D.C. 20460 
NOTICE OF PESTICIDE: 
__ X __ Registration 
____ Reregistration 
(under FIFRA, as amended) 
Name and Address of Registrant (include ZIP Code): 
Nufarm Americas, Inc. 
150 Harvester Drive Suite 200 
Burr Ridge, IL 60527 
EPA Reg. NUmber: Date of Issuance: 
1381-235 
FEB 26 2008 
Term of Issuance: 
Unconditional 
Name of pesticide product: 
Metsulfuron Methyl 60% 
Herbicide 
On the basis of information furnished by the registrant, the above named pesticide is hereby registered under the Federal Insecticide, 
Fungicide and Rodenticide Act. 
Regis"tration is in no way to be construed as an endorsement or reconnnendation of this product by the Agency. In order to protect 
heal th and the environment, the Administrator, on his motion, may at any time suspend or cancel the registra~ion of a pesticide in 
accordance with the Act. The acceptance of, any name in connection with the registration of a product under this Act is not to be 
construed as giving 'the registrant a right to exclusive use of the name or to its use if it has been covered by others. 
This product· is conditionally registered in accordance with 
FIFRA sec. 3(c) (5) provided that you: 
1. Submit and/or cite all data required for registration of your 
product 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. 
2. Make the labeling changes listed below before you release the 
product for shipment. 
Add the phrase "EPA Registration No. 1381-235".

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Metsulfuron Methyl 600/0 
Herbicide 
Dry Flowable 
For use on Wheat, Barley, Triticale and Fallow 
Active Ingredients 
Metsulfuron Methyl 
By Weight 
Methyl 2-[[[[(4-methoxy-6-methyl-1 ,3,5-triazin-2yl)amino] 
carbonyl]amino]sulfonyl]benzoate 
Inert Ingredients . 
Total 
KEEP OUT OF REACH OF CHILDREN 
CAUTION 
60% 
40% 
100% 
Si usted no entiende la eqiqueta, busque a alguien para que se la explique a usted an detalle. (If you do 
not understand this label, find someone to explain it to you in detail.) 
FIRST AID 
IF ON SKIN OR CLOTHING:. Take off contaminated clothing. Rinse skin immediately with plenty of water 
for 15-20 minutes. Call a poison control center or doctor for treatment advice. 
IF IN EYES: Hold eye open and rinse slowly and gently with water for 15-20 minutes. Remove contact 
lenses, if present, after the first 5 minutes, then continue rinsing eye. Call a poison control center or 
doctor for further treatment advice. 
Have the product container or label with you when calling a poison control center or doctor, or going for 
treatment. You may also contact 1-800-441-3637 for emergency medical treatment information. 
EPA Reg. No. 1381-
Manufactured for: 
Winfield Solutions 
P.O. Box 64589 
St. Paul, MN 55164-0589 
ACCEPTED 
FEB 26 2008 
Under the Feder&! 1nseotJoJde, 
l'ungioide, and 1Iodemia1de ~ 
as amended, for lhe pest10Jcle ' 
registered UDder 
EPA Reg. No. '3/ -
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PRECAUTIONARY STATEMel'4TS 
HAZARDS TO HUMANS AND DOMESTIC ANIMALS 
Caution! Causes eye irritation. Avoid contact with skin, eyes or clothing. Avoid 
breathing dust o(spray mist. 
PERSONAL PROTECTIVE EQUIPMENT 
WPS USES: Applicators and other handlers who handle this pesticide for any use covered by the Worker 
Protection Standard [(40 CFR Part 170)] 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 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. 
IMPORTANT INFORMATION , 
PESTICIDE HANDLING 
• Calibrate sprayers only with clean water away from the well site. 
• Make scheduled checks of spray equipment. 
• Assure accurate measurement of pesticides by all operation employees. 
• Mix only enough product for the job at hand. 
• Avoid overfilling of spray tank. 
• Do not discharge excess material on the soil at a single spot in the field or mixing/loading station. 
• Dilute and agitate excess solution and apply at labeled rates/uses. 
• Avoid storage of pesticides near well sites. 
• When triple rinsing the pesticide container, be sure to add the rinsate to the spray jmix. 
DIRECTIONS FOR USE 
It is a violation of federal law to use this product in a manner inconsistent with its labeling. 
Do not apply this product in a way that will contact workers or other persons, either directly or through 
drift. Only protected handlers may be in the area during application. For any requirements specific to your 
State or Tribe, consult the agency responsible 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 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. 
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Do not enter or allow worker entry into treated areas during the restrictl::u entry interval (REI) of 4 hours. 
PPE required for early entry to treated areas that is permitted under the Worker Protection Standard and 
that involves contact with anything that has been treated; such as plants, soil, or water, is: Coveralls, 
shoes plus socks. 
NON-AGRICULTURAL USE REQUIREMENTS 
The requirements in this box apply to uses of this product that are NOT within the scope of the Worker 
Protection Standard for agricultural pesticides (40 CFR Part 170). The WPS applies when this product is 
used to produce agricultural plants on farms, forests, nurseries, or greenhouses. Keep unprotected 
persons out of treated areas until sprays have dried. . 
METSULFURON METHYL 60% should be used only in accordance with recommendations on this label 
or in separate published Winfield Solutions recommendations. 
Winfield Solutions. will not be responsible for losses or damages resulting from the use of this product in 
any manner not specifically recommended by Winfield Solutions. 
Do not apply this product through any type of irrigation system. 
GENERAL INFORMATION 
METSULFURON METHYL 60% herbicide is recommended for use on land primarily dedicated to the 
production of wheat, barley, Triticale and fallow. 
METSULFURON METHYL 60% is recommended for use on wheat, barley, Triticale and fallow in most 
states. Check with your state extension or Department of Agriculture before use, to be certain 
METSULFURON METHYL 60% is registered in your state. METSULFURON METHYL 60% is not 
registered for use in Alamosa, Conejos, Costilla, RioGrande, and Saquache counties of Colorado. 
METSULFURON METHYL 60% is a dry-flowable granule that controls weeds in wheat (including durum), 
barley, Triticale and fallow. METSULFURON METHYL 60% is mixed in water or can be preslurried in 
water and added to liquid nitrogen carrier solutions and applied as a uniform broadcast spray. A 
surfactant should be used in the spray mix unless otherwise specified on this label. METSULFURON 
METHYL 60% is noncorrosive, nonflammable, nonvolatile, and does not freeze. 
METSULFURON METHYL 60% controls weeds by postemergence activity. For best results, apply 
METSULFURON METHYL 60% to young, actively growing weeds. The use rate depends upon the weed 
spectrum and size of weeds at application. The degree and duration of control may depend on the 
following factors: 
• weed spectrum and infestation intensity 
• weed size at application 
• environmental condition at and following treatment 
Environmental Conditions and Biological Activity 
METSULFURON METHYL 60% is absorbed through the foliage of broad leaf weeds, rapidly inhibiting 
their growth. Leaves of susceptible plants appear chlorotic from 1 to 3 weeks after application and the 
growing point subsequently dies. . 
Application of METSULFURON METHYL 60% provides the best control in vigorously growing crops that 
shade competitive weeds. Weed control in areas of thin crop stand or seeding skips may not be as 
satisfactory. However, a crop canopy that is too dense at application can intercept spray and reduce 
weed control. 
METSULFURON METHYL 60% may injure crops that are stressed from adverse environmental 
conditions (such as extreme temperatures or moisture), abnormal soil conditions, or cultural practices. In 
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addition, different varieties of the crop may be sensitive to treatment wiul IvlETSULFURON METHYL 60% 
under otherwise normal conditions. Treatment of such varieties may injure crops. 
In warm, moist conditions, the expression of herbicide symptoms is accelerated in weeds; in cold, dry 
conditions, expression of herbicide symptoms is delayed. In addition, weeds hardened-off by drought 
stress are less susceptible to METSULFURON METHYL 60%. 
Weed control may be reduced if rainfall or snowfall occurs soon after application. 
APPLICATION INFORMATION 
FALLOW 
Use Rates - Apply METSULFURON METHYL 60% at 1/10 ounce per acre.· 
Application Timing - METSULFURON METHYL 60% may be used as a faliow treatment, in the spring 
or fall when the majority of weeds have emerged and are actively growing. 
Tank Mixtures in Fallow - METSULFURON METHYL 60% may be used as a fallow treatment, and may 
be tank mixed with other herbicides that are registered for use in fallow. If those recommendations conflict 
with this label, do not tank mix that product with METSULFURON METHYL 60%. Read and follow all 
label instructions on timing, precautions, and warnings for any companion products before using these 
tank mixtures. Follow the most restrictive labeling. 
WHEAT, BARLEY and TRITICALE 
Use Rates":' Wheat (including durum), Barley and Triticale: Apply 1/10 ounce METSULFURON . 
METHYL 60% per acre to wheat, barley or triticale once per use season. 
Application Timing - Dryland Wheat, Barley and Triticale (except Durum or Wampum Variety): 
Make applications after the crop is in the 2-leaf stage but before boot once per use season. 
Durum and Wampum Variety Spring Wheat: Make applications after the crop is tillering but before 
boot once per use season. 
Applications to durum and wampum varieties should be made in combination with 2,4-D. 
Irrigated Wheat and Barley: Make applications after the crop begins tillering but before boot. First post­
treatment irrigation should be delayed for at least 3 days after treatment and should not exceed 1 inch of 
water. 
Do not apply during boot and early heading, as crop injury may result. 
WEEDS CONTROLLED 
Unless otherwise directed, treat when weeds are less than 4" tall or in diameter and are actively growing. 
Effectiveness may be reduced if rainfall occurs within 4 hours after application. 
Cereals and Fallow 
1110 ounce per acre 
Blue/purple mustard* 
Bur buttercup (testiculate) 
Coast fiddleneck (tarweed) 
Common chickweed 
Common purslane 
Conical catchfly 
Cowcockle 
False chamomile 
Field pennycress'(fanweed) 
Filaree 
Flixweed* 
Groundsel (common) 
Miners lettuce 
Pigweed (redroot, smooth, tumble) 
Plains coreopsis 
Prickly lettuce*· 
Russian thistle* 
Shepherd's purse 
Smallseed falseflax 
Smartweed (green, ladysthumb, pale) 
Snow speedwell 
Tansym ustard* 
Treacle mustard (Bushy Wallflower) 
Tumble/Jim Hill mustard 
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Henbit 
Kochia* 
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Lambsquarters (common, slimleaf) 
Mayweed chamomile 
Weeds Suppressed*' 
Cereals and fallow 
1/10 ounce per acre 
Canada thistle* 
Common sunflower* 
Corn gromwe"* 
Volunteer sunflo\vl7r 
Waterpod 
Wild mustard 
Knotll)leed (prostrate)* 
Sowthistle (annual)* 
Wild buckwheat* 
* See the Specific Weed Problems section. 
t Weed suppression is a reduction in weed competition (reduced population and/or vigor) as visually 
compared to an untreated area, The degree of suppression varies with the rate used, the size of the 
weeds, and the environmental conditions following treatment. 
Specific Weed Problems 
Note: Thorough spray coverage of a" weed species listed below is very important. 
Blue Mustard, Flixweed, and Tansymustard: For best results, apply METSULFURON METHYL 60% 
tank mixtures with 2,4-0 or MCPA postemergence to mustards, but before bloom. 
Canada Thistle and Sowthistle: Apply either METSULFURON METHYL 60% plus surfactant or 
METSULFURON METHYL 60% plus 2,4-0 or MCPA in the spring after the majority of thistles have 
emerged and are sma" (rosette stage to 6" elongating stems) and actively growing. The application wi" 
inhibit the ability of emerged thistles to compete with the crop. 
Corn Gromwell and Prostrate Knotweed: Apply METSULFURON METHYL 60% plus surfactant when 
weeds are actively growing, are no larger than 2" tall, and when crop canopy wi" allow thorough 
coverage. Tank mixing 2,4-0 or MCPA with METSULFURON METHYL 60% can improve results. 
Kochia, Russian thistle, Prickly lettuce: Natura"y occurring resistant biotypes of these weeds are 
known to occur. For best results, use METSULFURON METHYL 60% in a tank mix with Oicamba and 
2,4-0, or bromoxynil and 2,4-0 (such as % - 1 pint "Buctril" + % - 3/8 pound active 2,4-0 ester). 
METSULFURON METHYL 60% should be applied in the spring when kochia, Russian thistle, and prickly 
lettuce are less than 2" tall or 2" across and are actively growing (refer to the Tank Mixtures section of this· 
label for additional details) . 
. Sunflower (common/volunteer): Apply either METSULFURON METHYL 60% plLis surfactant or 
METSULFURON METHYL 60% plus 2,4-0 or MCPA after the majority of sunflowers have emerged, are 
2" to 4" tall, and are actively growing. Use spray volumes of at least 3 gallons by air or 5 gallons by 
ground. 
Wild Buckwheat: For best results, apply METSULFURON METHYL 60% plus 2,4-0 or MCPA when 
plants have no more than 3 true leaves (not counting the cotyledons). If plants are not actively growing, 
delay treatment until environmental conditions favor active weed growth. 
TANK MIXTURES IN CEREALS (WHEAT, BARLEY AND TRITICALE) 
Read and follow a" manufacturers' label recommendations for any companion herbicides, fungicides 
and/or insecticides. If those recommendations conflict with this label, do not tank mix that product with 
METSULFURON METHYL 60%. Read and follow a" label instructions on timing, precautions, and 
warnings for any companion products before using these tank mixtures. Fo"ow the most restrictive 
labeling. ' 
METSULFURON METHYL 60% may be tank mixed with other suitable registered herbicides to control 
weeds listed under Weeds Suppressed, weeds resistant to METSULFURON METHYL 60%, or weeds 
not listed under Weeds Controlled. 
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With 2,4-0 (amine or ester) or MCPA (amine or ester): METSULFU.·,0N METHYL 60% can be used 
as a tank-mix treatment with 2,4-0 or MCPA (ester formulations provide best results) herbicides after 
weeds have emerged. For best results use 1/10 ounce of METSULFURON METHYL 60% per acre; add 
2,4-0 or MCPA herbicides to the tank at 14 to Y2 pound active ingredient. Surfactant may be added to the 
mixture at Y2 to 1 quarter per 100 gallons of spray solution; however, adding surfactant may increase the 
potential for crop injury. 
Apply METSULFURON METHYL 60% plus MCPA after the·3 to 5-leaf stage but before boot (with Ourum 
and Wampum varieties do not apply before tillering). Apply METSULFURON METHYL 60% plus 2,4-0 
after tillering (refer to appropriate 2,4-0 manufacturer's label), but before boot. 
With Oicamba: For best results, apply METSULFURON METHYL 60% at ·1/10 ounce per acre; add 1/16 
to 1/8 pound active ingredient dicamba. Surfactant may be added to the mixture at Y2 to 1 quart per 100 
gallons of spray solution; however, adding surfactant may increase the potential for crop injury. Also refer 
to dicamba labels for application timing and restrictions. 
With 2,4-0 (amine or ester) and Oicamba: METSULFURON METHYL 60% may be applied in a 3-way 
tank mix with formulations of dicamba and 2,4-0. Observe all applicable directions, restrictions and 
precautions on labels of all products used. 
Make applications at 1/10 ounce of METSULFURON METHYL 60% + 1/16 - 1/12 pound active ingredient 
dicamba + 4 - 6 ounces active 2,4-0 Ester or Amine per acre. Use higher rates when weed infestation is 
heavy. Add 1-2 pints of surfactant to the 3-way mixture, where necessary, as deemed by local 
recommendations. Use of additional surfactant may not be needed with the higher phenoxy rates and 
ester phenoxy formulations. Consult the specific 2,4-0 or dicamba label, or local recommendations for 
more information. 
Apply this 3-way combination to winter wheat after the crop is tillering and prior to jointing (first node). In 
Spring Wheat (including Ourum wheat) apply after the crop is tillering and before it exceeds the 5-leaf 
stage. . 
00 not apply this 3-way mixture at high rates more than once a year or more than twice per year at the 
low rates. 
With bromoxynil (such as "Buctril", "Bronate"): METSULFURON METHYL 60% may be tank mixed 
with bromoxynil containing herbicides registered for use on wheat, barley or fallow. For best results, add 
bronioxynil containing herbicides to the tank at 3 to 6 ounces active ingredient per acre (such as 
"Bronate" or "Buctril" at % - 1Y2 pints per acre). 
With "Starane": For improved control of Kochia (2-4" tall), Russian thistle, mustard species, and wild 
buckwheat, METSULFURON METHYL 60% may be tank mixed with 1/3 to 1 1/3 pints per acre of 
"Starane." 
With "Starane" + "Salvo": For improved control of Kochia (2-4" tall), Russian thistle, mustard species 
and wild buckwheat, METSULFURON METHYL 60% may be tank mixed with 2/3 to 2 2/3 pints per acre 
of "Starane" + Salvo." 
With "Starane" + "Sword": For improved control of Kochia (2-4" tall), Russian thistle, mustard species 
and wild buckwheat, METSULFURON METHYL 60% may be tank mixed with % to 2% pints per acre of 
"Starane" + "Sword." 
With "Maverick": METSULFURON METHYL 60% can be tank mixed with "Maverick" herbicide for 
improved control of weeds in wheat. 
With "Aim": METSULFURON METHYL 60% can be tank mixed with "Aim" herbicide for improved 
control of weeds in wheat and barley. 
With "Stinger", "Curtail", or "Curtail M" or "Widematch": METSULFURON METHYL 60% can be 
tank mixed with "Stinger", "Curtail", or "Curtail M" herbicides for improved control of weeds in wheat and 
barley. 
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With DupontTM EXPRES~I!j): METSULFURON METHYL 60% may b~\Clnkmixed with EXPRESS® 
based on local recommendations. 
With DupontTM HARMONY@) EXTRA: METSULFURON METHYL 60% may be tank mixed with· 
HARMONY® EXTRA based on local recommendations. . 
With grass control products: Tank mixtures of METSULFURON METHYL 60% and grass control 
products may result in poor grass control. Winfield Solutions recommends that you first consult your state 
experiment station, university, or extension agent, Agricultural dealer, or Winfield Solutions representative 
as to the potential for antagonism before using the mixture. If no information is available, limit the initial 
use of METSULFURON METHYL 60% and the grass product to a small area. . 
Do not tank mix METSULFURON METHYL 60% with "Hoelon" 3EC, as grass control may be reduced. 
With "Assert" herbicide or "Avenge" herbicide: METSULFURON METHYL 60% can be tank mixed 
with "Avenge" or "Assert". When tank mixing METSULFURON METHYL 60% with "Assert", always 
include another broad leaf weed herbicide with a different mode of action (for example: 2,4-0 ester, MCPA 
ester, "Buctril," or "Bronate"). Tankmixed applications of EXPRESS® plus "Assert" may cause temporary 
crop discoloration, stunting, or injury when heavy rainfall occurs shortlyafter application. 
With "Puma": METSULFURON METHYL 60% can be tank mixed with "Puma" herbicide for improved 
control of weeds in wheat and barley. 
With "Discover NG": METSULFURON METHYL 60% can be tank mixed with "Discover NG" herbicide 
for improved control of weeds in spring wheat. 
With "Everest": METSULFURON METHYL 60% can be tank mixed with "Everesf' herbicide for 
improved control of weeds in spring wheat. 
With Insecticides and Fungicides: METSULFURON METHYL 60% may be tank mixed or used 
sequentially with insecticides and fungicides registered for use on cereal grains. 
However, under certain conditions (drought stress, cold weather, or if the crop is in the 2-4 leaf stage), 
tank mixes or sequential applications of METSULFURON METHYL 60% with organophosphate 
insecticides (such as parathion, "Di-Syston") may produce temporary crop yellowing or, in severe cases, ' 
crop injury. 
The potential for crop injury is greatest when wide fluctuations in day/night temperatures occur just prior 
to or soon after application. 
Test these mixtures in a small area before treating large areas. 
Do not apply METSULFURON METHYL 60% within 60 days of crop emergence where an 
organophosphate insecticide (such as "Di-Syston") has been applied as an in-furrow treatment, as crop 
injury may result. 
Do not use METSULFURON METHYL 60% plus Malathion, as crop injury will result. 
With Liquid Nitrogen Solution Fertilizer: Liquid nitrogen fertilizer solutions may be used as a carrier in 
place of water. Run a tank mix compatibility test before mixing METSULFURON METHYL 60% in fertilizer 
solution. 
METSULFURON METHYL 60% must first be slurried with water and then added to liquid nitrogen 
solutions (e.g., 28-0-0, 32-0-0). Ensure that the agitator i~ running while the METSULFURON METHYL 
60% is added. Use of this mixture may result in temporary crop yellowing and stunting. 
If using low rates of liquid nitrogen fertilizer in the spray solution (less than 50% of the spray solution 
volume), the addition of surfactant is necessary. Add surfactant at Y2 pt. - 1 qt. per 100 gals. of spray 
solution (0.06-0.25% v/v) based on local recommendations. 
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When using high rates of liquid nitrogen fertilizer in the spray solution, liuJing surfactant increases the 
risk of crop injury. Consult your agricultural dealer, consultant, fieldman, or Winfield Solutions 
representative for a specific recommendation before adding an adjuvant to these tank mixtures. 
If 2,4-D or MCPA is included with METSULFURON METHYL 60% and fertilizer mixture, ester 
formulations tend to be more compatible (see manufacturer's label). Do not add surfactant when using 
METSULFURON METHYL 60% in tank mix with 2,4-D ester or MCPA ester and liquid nitrogen fertilizer 
solutions. . 
Note: In certain areas east of the Mississippi river, unacceptable crop response may occur with use of 
straight or dilute nitrogen fertilizer carrier solutions where cold temperatures or widely fluctuating 
day/night temperatures exist. In these areas consult your agricultural dealer, consultant, field advisor, or 
Winfield Solutions representative for a specific recommendation before using nitrogen fertilizer carrier 
solutions. 
Liquid nitrogen fertilizer solutions that contain sulfur can increase crop response. 
Do not use low rates of liquid fertilizer as a substitute for a surfactant. 
Do not use with liquid fertilizer solutions with a pH less than 3.0. 
METSULFURONMETHYL 60% WITH MCPA, 2,4-D AND/OR DICAMBA FOR SUPPRESSION OF 
WINTER ANNUAL BROADLEAF WEEDS IN WINTER WHEAT TO BE GRAZED OUT IN THE STATES 
OF TEXAS, OKLAHOMA, NEW MEXICO AND KANSAS 
GENERAL INFORMATION 
METSULFURON METHYL 60% herbicide can be tank mixed with MCpA 2,4-D and/or dicamba for 
suppression of winter annual broad leaf weeds in winter wheat to be grazed out and not harvested for 
grain, in the states of Texas, Oklahoma,New Mexico and Kansas. 
DIRECTIONS FOR USE 
For the suppression of winter annual broad leaf weeds (such as hen bit and mustards) in winter wheat in 
the states of Texas, Oklahoma, New Mexico and Kansas, METSULFURON METHYL 60% at 0.05 (1/20) 
ounces per acre should be tank mixed with MCPA, 2,4-D and/or dicamba at label rates. Winter annual 
broadleaf weeds should be less than 1" tall or in the rosette stage for suppression. Add a Winfield 
Solutions recommended nonionic surfactant having at least 80% active ingredient at 1 to 2 quarts per 100 
gallons of spray solution (0.25 to 0.5% v/v). 
Rotation Intervals For Crops in Non-Irrigated Land Following Use of METSULFURON METHYL 60% 
at 0.05 (1120) Ounces Per Acre on Wheat That Will be Grazed Out 
Minimum Cumulative Minimum Rotation 
Crop Soil pH Precipitation (inches) Interval (months) 
Sorghum, Grain 7.9 or lower No restrictions 4 
Cotton 7.9 or lower No restrictions 10 
Alfalfa 6.8 or lower No restrictions 10 
6.9 to 7.9 No restrictions 22 
Beans, Dry 6.8 or lower No restrictions 10 
6.9 to 7.9 No restrictions 22 
Rotation Intervals for crops not covered above following the use of METSULFURON METHYL 60% at 
0.05 (1/20) ounces per acre on wheat that will be grazed out. 
The minimum rotation interval is 22 months with at least 18" of cumUlative precipitation during the period: 
• to any crop not listed in the Rotation InterVals table above 
• if the soil pH is not in the specified range 
To rotate to a crop at an interval shorter than recommended, a field bioassay must be successfully 
completed to rotate. to that crop. See section on' Field Bioassay for further information. 
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Important Restrictions: '-I nistreat'ment is for use on winter wheat th~\ v.,11 be grazed out and will not be / ' 
harvested for grain. 
Important Precautions: METSULFURON METHYL 60% suppresses weeds by postemergence activity. 
For best results, apply METSULFURON METHYL 60% to young, actively growing weeds. The degree 
and duration of suppression at 1/20 ounce per acre may depend upon the following factors: 
• weed spectrum and infestation intensity 
• weed size at application 
• environmental condition at and following treatment. 
WHEAT, BARLEY AND TRITICALE - HARVEST AID 
Use Rates: Apply 1/10 ounce of METSULFURON METHYL 60% per acre in combination with 2,4-D or 
glyphosate containing products to aid in dry down of many broad leaved weeds, thereby aiding grain 
harvest. ' 
Application Timing: Make applications after the crop has reached the hard dough stage, but no later 
than 10 days before harvest. 
Tank Mixtures in Harvest Aid: A tank mix of METSULFURON METHYL 60% plus 2,4-D and surfactant, 
,or "Roundup", will typically aid in dry down of many broad leaved weeds, thereby aiding grain harvest. 
Postemergence application should be made to actively growing weeds after the crop is in the hard dough 
stage. If weeds are not dry within 10 days after application, delay harvest until weeds are dry. 
See weeds listed in Weeds Controlled chart of this label. 
With 2,4-D: Use 1/10 ounce METSULFURON METHYL 60% plus % to Y2 pound active ingredient 2,4-D 
per acre on moderate weed infestations; higher rates of 2,4-D may be used on large weeds if permitted 
by the 2,4-D brand labeling. Include 1 02 quarts surfactant per 100 gallons spray solution. 
In addition to the weeds listed in Weeds Controlled chart of this label, the 2,4-D combination will also dry 
down common cocklebur, marestail, puncturevine and common and wild sunflower. In areas where 2,4-D 
use is restricted, apply METSULFURON METHYL 60% with surfactant only; however, this treatment may 
be less effective. 
With "Roundup": Use 1/10 ounce METSULFURON METHYL 60% plus the locally recommended rate 
of "Roundup" (see "Roundup" label for maximum seasonal rate). METSULFURON METHYL 60% requires 
the use of an adjuvant for optimum activity. Consult the "Roundup" label or local recommendations for the 
amount of adjuvant to include. 
GRAIN SORGHUM 
General Information 
METSULFURON METHYL 60% is recommended for use on irrigated or dryland grain sorghum in 
Colorado, Kansas, Nebraska, Oklahoma and Texas (North of 1-20). 
Use Rates: Apply METSULFURON METHYL 60% at 1/20 ounce per acre plus % pound active 
ingredient 2,4-D amine per acre. Do not use surfactant or crop oil. 
Crop Stage:, For optimum performance and crop safety, apply METSULFURON METHYL 60% plus 2,4-
D amine when grain sorghum is 3 to 15 inches in height. If sorghum is taller than 10 inches to the top of 
the canopy, use drop nozzles and keep spray off the foliage. Apply only before the boot stage. Read and 
follow all other use instructions, warnings and precautions on companion herbicide labels. 
Sorghum varieties vary in sensitivity to 2,4-D amine. Spray only varieties known to be tolerant to 2,4-D 
amine. Contact seed company and Local County Extension Service for this information. 
Pest Stage: Application of METSULFURON METHYL 60% plus 2,4-D amine should be made when all 
or a majority of the weeds have germinated and emerged. For best results, spray when weeds are less 
than 6 inches tall. 
9

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Weeds Controlled With 1dnk Mix of METSULFURON METHYL 60% t"'.us 2,4-0 amine: Pigweed . 
species, Puncture vine, Velvetleaf. 
Application Information 
METSULFURON METHYL 60% herbicide may be applied to grain sorghum by properly calibrated ground' 
or aerial equipment. 
METSULFURON METHYL 60% can be used on either dryland or irrigated grain sorghum. If application is 
made to irrigated sorghum, delay first post-treatment irrigation for at least 3 days after treatment. The first 
post-treatment irrigation should not exceed 1". 
Use cultivation prior to METSULFURON METHYL 60% + 2,4-0 amine treatment to cover exposed brace 
roots of grain sorghum to minimize injury from 2,4-0 amine. 
Precautionary Statements 
• Temporary crop yellowing and/or stunting may occur soon after application, especially when crop is 
under stress conditions. . 
• Do not use on grain sorghum grown for seed production or syrup. Do not use on forage sorghum. 
• Do not use for forage or silage within 30 days of application. 
• Do not include a surfactant or crop oil to the tank mix. 
• Do not apply this treatment under cold, wet weather conditions or to grain sorghum growing under 
stress caused by weather, insects or disease as crop injury may result. 
• Do not apply to long season grain sorghum varieties or grain sorghum that is planted after July 1, as 
crop injury or delayed maturity may occur. 
• Do not exceed one (1) application per year. 
• METSULFURON METHYL 60% must be used with 2,4-D~ in areas where 2,4-0 use is restricted, 
follow requirement of the restriction. If 2,4·D use is prohibited, do not use METSULFURON METHYL 
60% on grain sorghum. 
SURFACTANTS 
Spray Adjuvants 
Applications6f METSULFURON METHYL 60% must include either a nonionic surfactant or a crop oil 
concentrate. In addition, an ammonium nitrogen fertilizer may be used. Consult local Winfield Solutions 
fact sheets, technical bulletins, and service policies prior to using other adjuvant systems. If another 
herbicide is tank mixed with METSULFURON METHYL 60%, select adjuvants authorized for use with 
both products. Products must contain only EPA-exempt ingredients (40 CFR 1001). 
Antifoaming agents may be needed. Consult your Ag dealer, applicator, or Winfield Solutions 
representative for a listing of recommended surfactants. 
Nonionic Surfactant (NIS) 
• Apply 0.06 to 0.50% v/v (1/2 to 4 pints per 100 gallons of spray solution) - See Tank Mixtures 
section for additional information. . 
• Surfactant products must contain at least 60% nonionic surfactant with'a hydrophilic/lipophilic 
balance (HLB) greater than 12. 
Exceptions: On all spring wheat and spring or winter barley, use Y2 to 1 quart per 100 gallons. 
Petroleum Crop Oil Concentrate (COC) or Modified Seed Oil (MSO) 
• Apply at 1 % v/v (gallon per 100 gallons spray solution) or 2% under arid conditions. 
• Oil adjuvants must contain at least 80% high quality, petroleum (mineral) or modified vegetable seed 
oil with a least 15% surfactant emulsifiers. 
Ammonium Nitrogen Fertilizer 
• Use 2 quarts/acre of a high-quality urea ammonium nitrate (UAN), such as 28%N or 32%N, or 2 
pounds/acre of a spray-grade ammonium sulfate (AMS). Use 4 quarts/acre UAN or 4 pounds/acre 
AMS under arid conditions. 
• Do not use liquid nitrogen fertilizer as the total carrier solution. 
Special Adjuvant Types 
10

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\ ' 
• Combination adjuvant products may be used at doses that providE:" Ie required amount of NIS, 
COC, MSO and/or ammonium nitrogen fertilizer. Consult product literature for use rates and 
restrictions. 
• In addition to the adjuvants specified above, other adjuvant types may be used if they provide the 
same functionality and have been evaluated and approved by Winfield Solutions product 
management. 
Antifoaming agents may be used if needed. 
Do not use low rates of liquid fertilizer as a substitute for surfactant. 
GROUND APPLICATION 
To obtain optimum spray distribution and thorough coverage, use flat-f~m or low-volume flood nozzles. 
For flood nozzles on 30" spacings, use at least 10 gallons per acre (GPA), flood nozzles no larger than 
TK10 (or equivalent), and a pressure of at least 30 pounds per square inch (psi), For 40" nozzle spacings, . 
use at least 13 GPA; for 60" spacings, use at least 20 GPA. It is essential to overlap the nozZles 100% for 
all spacings. . 
With "Raindrop RA" nozzles, use at least 30 GPA and ensure that nozzle spray patterns overlap 100%. 
For flat-fan nozzles, use at least 3 GPA for applications to wheat or barley. 
Use 50-mesh screens or larger. 
Aerial Application 
Use nozzle types and arrangements that provide optimum spray distribution and maximum coverage. 
Wheat, Barley, Triticale and Fallow-use 1 to 5 GPA. Use at least 3 GPA in Idaho, Oregon or Utah. 
When applying METSULFURON METHYL 60% by air in areas adjacent to sensitive crops, use solid 
stream nozzles oriented straight back. Adjust the swath to avoid spray drift damage to sensitive crops 
downwind and/or use ground equipment to treat the border edge of fields, See the Spray Drift 
Management section of this label. . 
Product Measurement 
METSULFURON METHYL 60% is measured 'using the METSULFURON METHYL 60% volumetric 
measuring cylinder. The degree of accuracy of this cylinder varies by +/- 7.5%. For more precise 
measurement, use scales calibrated in ounces. 
WITH LIQUID NITROGEN SOLUTION FERTILIZER 
Liquid nitrogen fertilizer solutions may be used as a carrier in place of water. Run a tank mix compatibility 
test before mixing METSULFURON METHYL 60% in fertilizer solution. 
MEtSULFURON METHYL 60% must first be slurried with water and then added to liquid nitrogen 
solutions (e.g., 28-0-0-, 32-0-0). Ensure that the agitator is running while the METSULFURON METHYL 
60% is added. Use of this mixture may result in temporary crop yellowing and stunting. 
If using low rates of liquid nitrogen fertilizer in the spray solution (less than 50% of the spray solution 
volume), the addition of surfactant is necessary. Add surfactant at 1,4 pt. per 100 gals. of spray solution 
(0.03% v/v). -
When using high rates of liquid nitrogen fertilizer in the spray solution, adding surfactant increases the 
risk of crop injury. Consult your agricultural dealer, consultant, fieldman, or Winfield Solutions 
representative for a specific recommendation before adding an adjuvant to these tank mixtures. 
If 2,4-0 or MCPA is included with METSULFURON METHYL 60% and fertilizer mixture, ester 
formulations tend to be more compatible (see manufacturer's label). Do not add surfactant when using 
METSULFURON METHYL 60% in tank mix with 2,4-0 ester and liquid nitrogen fertilizer solutions. 
11

\ ( V3!/1,., 
Note: In certain areas east of the Mississippi River, unacceptable crop\",:;ponse may occur with use of LL-
straight or dilute nitrogen fertilizer carrier solutions where cold temperatures or widely fluctuating 
day/night temperatures exist. In these areas, consult your agricultural dealer-, consultant, field advisor, or 
Winfield Solutions representative for a specific recommendation before using nitrogen fertilizer carrier 
solutions. 
Liquid nitrogen fertilizer solutions that contain sulfur can increase crop response. 
Do not use low rates of liquid fertilizeras a substitute for a surfactant. 
Do not use with liquid fertilizer solutions with a P~ less than 3.0. 
CROP ROTATION 
Before using METSULFURON METHYL 60%, carefully consider your crop rotation plans and options. For 
rotational flexibility, do not treat all of your wheat, barley, Triticale or fallow acres at the same time. 
Minimum Rotational Intervals 
Minimum rotation intervals" are determined by the rate of breakdown of METSULFURON METHYL 60% 
applied. METSULFURON METHYL 60% breakdown in the soil is affected by soil pH, presence of soil 
microorganisms, soil temperature, and soil moisture. Low soil pH, high soil temperature, and high soil 
moisture increase METSULFURON METHYL 60% breakdown in soil, while high soil pH, low soil 
temperature, and low soil moisture slow METSULFURON METHYL 60% breakdown. 
Of these 3 factors, only soil pH remains relatively constant. Soil temperature, and to a greater extent, soil 
moisture, can vary significantly from year to year and from area to area. For this reason, soil temperatures 
and soil moisture should be monitored regularly when considering crop rotations. 
"The minimum rotation interval represents the period of time from the last application to the anticipated 
date of the next planting. 
Soil pH Limitations 
METSULFURON METHYL 60% should not be used on soils having a pH above 7.9, as extended soil 
residual activity could extend crop rotation intervals beyond normal.. Under certain conditions, 
METSULFURON METHYL 60% could remain in the soil for 34 months or more, injuring wheat and barley. 
In addition, other crops planted in high-pH soils can be extremely sensitive to low concentrations of 
METSULFURON METHYL 60%. ' 
Checking Soil pH 
Before using METSULFURON METHYL 60%, determine the SOil pH of the areas of intended use. To 
obtain a representative pH value for the test area, take several 0" to 4" samples from different areas of 
the field and analyze them separately. Consult local extension publications for additional information on 
recommended soil sampling procedures. 
BIOASSAY . 
A field bioassay must be completed before rotating to any crop not listed (see the Rotation Intervals 
table), or if the soil pH is not in the specified range, or if the use rate applied is not specified in the table, 
or if the minimum cumulative precipitation has not occurred since application. 
Field Bioassay 
To conduct a field bioassay, grow test strips of the crop or crops you plan to grow the following year in 
fields previously treated with METSULFURON METHYL 60%. Crop response to the bioassay will indicate 
whether or not to rotate to the crop(s) grown in the test strips. 
If afield bioassay is planned, check with your local Agricultural dealer or Winfield Solutions representative 
for information detailing the field bioassay procedure. 
Rotational Intervals for Cereals 
f METSU FURON METHYL I All Areas - Following Use 0 ' L 60% at 1 10 ounce per Acre 
Minimum Cumulative, Minimum Rotation 
Crop Soil pH Precipitation (inches) Interval (months) 
Winter and spring wheat 7.9 or lower No restrictions 1 
12

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r=~----~--~--~----' 
( 
10 7.9 or lower No restricti(;',;:i 
Rotation Intervals for Crops in Non-Irrigated Land 
Following Use of METSULFURON METHYL 60% at 1/10 ounce per Acre on Wheat, Barley, Triticale 
or Fallow . 
Minimum 
Cumulative Minimum 
Precipitation Rotation Interval 
State County or Area Crop Soil pH (inches) (months) 
Colorado Statewide Grain sorghum, 7.9 or lower No restrictions 10 
Proso millet 
Flax, Safflower, 7.9 or lower No restrictions 22 
Sunflower 
Field corn 7.9 or lower 15 12 
IR Corn 7.9 or lower No restrictions 4 
STS Soybeans 7.9 or lower No restrictions 4 
Idaho Southern Idaho Flax, Safflower, 7.9 or lower No restrictions 22 
Sunflower 
Statewide Peas, Lentils, Canola 6.8 or lower 18 10 
Peas 6.9 to 7.9 18 15 
Lentils 6.9to 7.9 18 34 
Canola 6.9 to 7.9 18 22 
Condiment mustard 7.3 or lower 10 10 
Condiment mustard 7.4 or higher 28 34 
Chickpeas 7.3 or lower 10 10 
Chickpeas 7.4 or higher 28 34 
Kansas Statewide Grain sorghum, 7.9 or lower No restrictions 10 
Proso millet 
Flax, Safflower, 7.9 or lower No restrictions 22 
Sunflower 
Central and Western Field corn 7.9 or lower 15 12 
Kansas (West of the IR Corn 7.9 or lower 15 4 
Flint Hills 
Western'Kansas W, of Soybeans 7.5 or lower 22 22 
Hwy.183 7.6-7.9 33 34 
Central Kansas: Soybeans 7.9 or lower 15 12 
generally E. of Hwy. STS Soybeans 7.9 or lower 15 4 
183 and W, of the 
Flint Hills 
Montana Statewide Grain sorghum, 7.9 or lower 22 22 
Proso millet, Field 
corn 
Alfalfa (hay only) 7.6-7.9 No restrictions 34 
7.5 or lower No restrictions 22 
Flax, Safflower, 7.9 or lower No restrictions 22 
Sunflower 
Nebraska Statewide Grain sorghum, 7.9 or lower No restrictions 10 
Proso millet 
Flax, Safflower, 7.9 or lower No restrictions 22 
Sunflower 
IR Corn, 7.9 or lower No restrictions 4 
STS Soybeans 
Generally W. of Hwy. Field corn 7.9 or lower 15 12 
77 and E. of the Soybeans 7.5 or lower 22 22 
Panhandle 7.6-7.9 33 34 
New Mexico Statewide Grain sorghum, 7.9 or lower No restrictions 10 
Proso millet 
Flax, Safflower, 7.9 or lower No restrictions 22 
Sunflower 
Eastern NeW Mexico Colton (dryland onlyt 7.9 or lower 30 22 
North Dakota W. of Hwy. 1 Grain sorghum, 7.9 or lower 22 22 
Proso millet, Field 
corn, Dry beans, 
Flax, Safflower,. 
" Soybean, Sunflower 
E. of Hwy. 1 Grain sorghum, 7.9 or lower 34 34 
Proso millet, Field 
," 
corn, Dry beans, 
13

( 
'. Minimum 
Cumulative Minimum 
Precipitation Rotation Interval 
State County or Area Crop Soil pH (inches) (months) 
Flax, Safflower, 
Soybean, Sunflower 
Oklahoma Statewide Grain sorghum, 7.9 or lower No restrictions 10 
Proso millet 
Flax, Safflower, 7.9 or lower No restrictions 22 
Sunflower 
Field corn 7.9 or lower 15 12 
Oklahoma Statewide IR Corn 7.9 or lower No restrictions 4 
(continued) STS Soybean 
Panhandle Cotton (dryland only) 7.9 or lower 30 22 
E. of the Panhandle Cotton (dryland only) 7.9 or lower 25 14 
Oregon Statewide Peas, Lentils, Canola 6.8 or lower 18 10 
Peas 6.9 to 7.9 18 15 
Lentils 6.9 to 7.9 18 34 
Canol a 6.9 to 7.9 18 22 
Condiment mustard 7.3 or lower 10 10 
Condiment mustard 7.4 or hiQher 28 34 
Chickpeas 7.3 or lower 10 10 
Chickpeas 7.4 or hiQher 28 34 
South Dakota Statewide Flax, Safflower, 7.9 or lower No restrictions 22 
Soybean, Sunflower 
S. of Hwy. 212 & E. of Grain sorghum, 7.9 or lower 13 12 
the Missouri River, & Proso millet 
S. of Hwy. 34 & W. of 
Missouri River 
Generally E. of Field corn 7.9 or lower 15 12 
Missouri River & S. of 
Hwy. 14, & W. of 
Missouri River 
Texas Statewide Grain sorghum, 7.9 or lower No restrictions 10 
Proso millet 
Flax, Safflower, 7.9 or lower No restrictions 22 
Soybean, Sunflower 
Panhandle Field corn 7.9 or lower 15 12 
Cotton (dryland only) 7.9 or lower 30 22 
N. Central Texas' Field corn 7.9 or lower 15 12 
Cotton (dryland only) 7.9 or lower 25 '14 
'The counties of N. Central Texas are: Archer, Baylor, Bell, Bosque, Bowie, Callahan, Camp, Cass, Clay, Collin, 
Cooke, Coryell, Dallas, Delta, Denton, Eastland, Ellis, Falls, Fannin, Foard, Franklin, Grayson, Hardeman, 
Haskell, Hill, Hood, Hopkins, Hunt, Jack, Johnson, Kaufman, Knox, Lamar, Limestone, McLennan, Milam, 
Montague, Morris, Nafarro, Palo Pinto, Parker, Rains, Red River, Robertson, Rockwall, Shackelford, Somervell, 
Stephens, Tarrent, Throckmorton, Titus, Upshur, Van Zandt, Wilbarger, Wichita, Williamson, Wise, WOOd, 
Young. 
Washington Statewide Peas, Lentils, Canola 6.8 or lower 18 10 
Peas 6.9 to 7.9 18 15 
Lentils 6.9 to 7.9 18 34 
Canola 6.9 to 7.9 18 22 
CDndiment mustard 7.3 or lower 10 10 
Condiment mustard 7.4 or higher 28 34 
Chickpeas 7.3 or lower 10 10 
Chickpeas 7.4 or higher 28 34 
Utah Statewide Flax, Safflower, 7.9 or lower No restrictions 22 
Sunflower 
Wyoming Statewide Flax, Safflower, 7.9 or lower No restrictions 22 
Sunflower 
Southern Wyoming Grain sorghum, 7.9 or lower No restrictions 10 
Proso millet 
Southern Wyoming Field corn 7.9 or lower 15 12 
(Goshen, Laramie and 
Platte counties only) 
Northern Wyoming Grain sorghum, 7.9 or lower 22 22 
Proso mill!')t, Field 
corn 
Rotation Intervals not covered above - The minimum rotation interval is 34 months with at least 28" of 
cumulative precipitation during the period: 
• to any major field crop not listed (see the Rotation Intervals table) 
• if the soil pH is not in the specified range 
14

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• if the use rate applied IS not ~pecified in the table ' . 
• or if the minimum cumulative precipitation has not occurred since application. 
To rotate to a major field crop at an interval shorter than recommended, a field bioassay must be 
su.ccessfully completed to that crop. A field bioassay must be successfully completed before rotation to 
any minor crops (as determined by the USDA criteria). See section on Field Bioassay for further 
information. 
RECROPPING INTERVALS FOR GRASSES ON CONSERVATION RESERVE PROGRAM (CRP) 
Whenever METSULFURON METHYL 60% has previously been used in wheat, barley, triticale or fallow, 
the following grasses may be planted after the intervals specified in the tables below. The planting of 
grass and legume mixtures is not recommended as injury to the legume may occur. 
Bentgrasses 
Blue grama 
Bluestems - Big, Little, Plains, Sand, WW Spar 
Buffalograss 
Galleta 
Green needlegrass 
Green sprangletop 
Indian ricegrass 
Lovegrasses - Sand, Weeping 
Orchardgrassnot (excluding Piaute) 
Prairie sandreed 
- Sand dropseed 
Sheep fescue 
Sideoatsgrama 
Switchgrass 
Wild-ryegrasses - Beardless, Russian 
Wheatgrasses - Crested, Intermediate, Pubescent, Slender, Stream bank, Tall, 
Thickspike, Western 
ROTATION INTERVALS 
MN, MT, NO, SO and Northern WY: 
Soil pH Use Rate (ounces/acre) Minimum Interval for Planting Grasses 
7.5 or lower 1/10 4 months (aHgrasses) 
7.6 to 7.9 1/10 4 months (Wheatgrsses only) 
GRAZING 
There are no grazing restrictions on METSULFURON METHYL 60%. 
IMPORTANT PRECAUTIONS 
Treated vegetation may be cut for forage or hay. Coveralls, shoes plus socks must be worn if cutting 
within 4 hours of treatment. 
MIXING INSTRUCTIONS 
1. Fill the lank Y<I to 1/3 full of water. (If using liquid nitrogen fertilizer solution in place of water, see 
Tank Mixtures sections for additional details.) 
2. While agitating, add the required amount of METSULFURON METHYL 60%. 
3. Continue agitation until the METSULFURON METHYL 60% is fully dispersed, at least 5 n:linutes. 
4. Once the METSULFURON METHYL 60% is fully dispersed, maintain agitation and continue filling 
tank with water. METSULFURON METHYL 60% should be thoroughly mixed with water before 
adding any other material. 
5. As the tank is filling, add tank mix partners (if desired) then add the necessary volume of nonionic 
surfactant. Always add surfactant last. 
15 
. I 
10./2 '2- .

6. 
7. 
8. 
If the mixture is not ~ontinuOUSIY agitated, seHlIng will occur. If s1,,, ,g occurs, thoroughly re-agitate 11( '2. L 
before using. 
Apply METSULFURON METHYL 60% spray mixture within 24 hours of mixing to avoid product 
degradation. 
If METSULFURON METHYL 60% and a tank mix partner are to be applied in multiple loads, pre­
slurry the METSULFURON METHYL 60% in clean water prior to adding to the tank. This will prevent 
the tank mix partner from interfering with the dissolution of the METSULFURON METHYL 60%. 
Do not use METSULFURON METHYL· 60% with spray additives that reduce the pH of the spray solution 
to below 3.0. 
SPRAY EaUIPMENT 
For specific application equipment, refer to the manufacturer's recommendations for additional 
information on GPA, pressure, speed, nozzle types and arrangements, nozzle heights above the target 
canopy, etc. 
Be sure to calibrate air or ground equipment properly before application. Select a spray volume and 
delivery system that will ensure thorough coverage and a uniform spray pattern with minimum drift. Use 
higher spray volumes to obtain better coverage when the crop canopy is dense. Avoid swath overlapping, 
and shut off spray booms while starting, turning, slowing, or stopping to avoid crop injury. 
Do not make applications using equipment and/or spray volumes or under weather conditions that might 
cause spray to drift onto nontarget sites. For additional information on spray drift, refer to the Spray Drift 
Management section of the label. 
Continuous agitation is required to keep METSULFURON METHYL 60% in suspension. 
SPRAYER CLEANUP 
Spray equipment must be cleaned before METSULFURON METHYL 60% is sprayed. Follow the cleanup 
procedures specified on the labels of previously applied products. If no directions are provided, follow the 
six steps outlined in After Spraying METSULFURON METHYL 60% section of thisdabel. . 
At the End of the Day 
. When multiple loads of METSLJLFURON METHYL 60% herbicide are applied, it is recommended that at 
the end. of each day of spraying, the interior of the tank be rinsed with fresh water and then partially filled, 
and the boom and hoses flushed. This will prevent the buildup of dried pesticide deposits that can 
accumulate in the application equipment. 
After Spraying METSULFURON METHYL 60% and Before Spraying Crops Other Than Wheat, 
Barley, Triticale or Fallow 
To avoid subsequent injury to desirable crops, thoroughly clean all mixing and spray equipment 
immediately following applications of METSULFURON METHYL 60% as follows: 
1. . Drain tank; thoroughly rinse spray tanks, boom, and hoses with clean water. Loosen and physically 
remove any visible deposits. 
2. Fill the tank with clean water and 1 gallon of household ammonia* (contains 3% active)for every 100 
gals. of water. Flush the hoses, boom, and nozzles with the cleaning solution. Then add more water 
to completely fill the tank. Circulate the cleaning solution through the tank and hoses for at least 15 
minutes. Flush the hoses, boom, and nozzles again with the cleaning solution, and then drain the 
tank. 
3. Remove the nozzles and screens and clean separately in a bucket containing cleaning agent and 
water. 
4. Repeat step 2. 
5. Rinse the tank, boom, and hoses with clean water. 
6. If only ammonia is used as a cleaner, the rinsate solution may be applied back to the crop(s) 
recommended on this label. Do not exceed the maximum labeled use rate. If other cleaners are 
used, consult the cleaner label for rinsate disposal instructions. If no instructions are'given, dispose 
of the rinsate on site or at an approved waste disposal facility. . 
• Equivalent amounts of an alternate·strength ammonia solution or a Winfield Solutions-approved cleaner can be 
used in the cleanout procedure, Carefully read and follow the individual cleaner instructions, Consult your agricultural 
dealer, applicator, or Winfield Solutions representative for a listing of approved cleaners, 
16

(" 
" Notes: 
1. Attention: Do not use chlorine bleach with ammonia, as dangerous gases will form. Do not clean 
equipment in an enclosed area. 
2. Steam-cleaning aerial spray tanks is recommended prior to performing the above clean out 
procedure to facilitate the removal of any caked deposits. 
3. When METSULFURON METHYL 60% is tank mixed with other pesticides, all required cleanout 
procedures should be examined and the most rigorous procedure should be followed. 
4. In addition to this clean out procedure, all pre-cleanout guidelines on subsequently applied products 
should be followed as per the individual labels. 
5. Where routine spraying practices include shared equipment frequently being switched between 
applications of METSULFURON METHYL 60% and applications of other pesticides to 
METSULFURON METHYL 60%-sensitive crops during the same spray season, it is recommended 
that a sprayer be dedicated to METSULFURON METHYL 60% to further reduce the chance of crop 
injury. 
SPRAY DRIFT MANAGEMENT 
The interaction of many equipment and weather-related factors determines the potential for spray drift. 
The applicator is responsible for considering all these factors when making application decisions. 
AVOIDING SPRAY DRIFT IS THE RESPONSIBILITY OF THE APPLICATOR. 
IMPORTANCE OF DROPLET SIZE 
The most effective way to reduce drift potential is to apply large droplets (>150 - 200 microns). The best 
drift management strategy is to apply the largest droplets that provide sufficient coverage and control. 
The presence of sensitive species nearby, the environmental conditions, and pest pressure may affect 
how an applicator balances drift control and coverage. APPLYING LARGER DROPLETS REDUCES 
DRIFT POTENTIAL, BUT WILL NOT PREVENT DRIFT IF APPLICATIONS ARE MADE IMPROPERLY 
OR UNDER UNFAVORABLE ENVIRONMENTAL CONDITIONS! See Wind, Temperature and 
Humidity, and Temperature Inversions sections of this label. 
Controlling Droplet Size - General Techniques 
• Volume - Use high flow rate nozzles to apply the highest practical spray volume. Nozzles with 
higher rated flows produce larger droplets. " 
• Pressure - Use the lower spray pressures recommended for the nozzle. Higher pressure reduces 
droplet size and does not improve canopy penetration. WHEN HIGHER FLOW RATES ARE 
NEEDED, USE A HIGHER-CAPACITY NOZZLE INSTEAD OF INCREASING PRESSURE. " 
• Nozzle Type - Use a nozzle type that is designed for the intended application. With most nozzle 
types, narrower spray angles produce larger droplets. Consider using low-drift nozzles. 
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 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 ~ of the wing or rotor length - longer booms 
increase drift potential. 
• Application Height - Application more than 10ft. 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 equipment, the boom should remain level with 
the crop and have minimal bounce. " 
WIND 
17

c. ( 19/22-Drift potential increases afwlnd speeds of less than 3 mph (due tOinvefr.::>,\.Jn 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 CONDITIONS. . 
Note: Local terrain can influence wind patterns. Every applicator should be familiar with local wind 
patterns and how they affect spray drift. 
TEMPERATURE AND HUMIDITY 
When making applications in hot and dry conditions, set up equipment to produce larger droplets to 
reduce effects of evaporation. 
TEMPERATURE INVERSIONS . . 
Drift potential .is high during a temperature inversion. Temperature inversions restrict vertical air mixing, 
which causes small suspended droplets to remain close to the ground and move laterally in a 
concentrated cloud. Temperature inversions are characterized by increasing temperature with altitude 
and are common on nights with limited cloud cover and light to no wind. They begin to form as the sun 
sets and often continue into the morning. Their presence can be indicated by ground fog; however, if fog 
is not present, inversions can also be identified by the movement of smoke from a ground source or an 
aircraft smoke generator. Smoke that layers and moves laterally in a concentrated cloud (under low wind 
conditions) indicates an inversion, while smoke that moves upward and rapidly dissipates indicates good 
vertical air mixing. 
SHIELDED SPRA YERS 
Shielding the boom or individual nozzles can reduce the effects of wind. However: it is the responsibility 
of the applicator to verify that the shields are preventing drift and not interfering with uniform deposition of 
the product. 
AIR ASSISTED (AIR BLAST) FIELD CROP SPRA YERS 
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 responsibility of the applicator to determine that a sprayer is suitable 
for the intended application, is configured properly, and that 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 that affect the same biological site of action are used repeatedly over several years to 
control the same weed species in the same field, naturally-occurring resistant biotypes may survive a 
correctly applied herbicide treatment, propagate, and become dominant in that field. Adequate control of 
these resistant weed biotypes cannot be expected. If weed control is unsatisfactory, it may be necessary 
to retreat the problem area using a product affecting a different site of action. 
To better manage herbicide resistance through delaying the proliferation and possible dominance of 
herbicide resistant weed biotypes, it may be necessary to change cultural practices within and between 
crop seasons such as using a combination of tillage, retreatment, tank-mix partners and/or sequential 
herbicide applications that have a different site of action. Weed escapes that are allowed to go to seed 
will promote the spread of resistant biotypes. . 
It is advisable to keep accurate records of pesticides applied to individual fields to help obtain information 
on the spread and dispersal of resistant biotypes. Consult your agricultural dealer, consultant, applicator, 
and/or appropriate state agricultural extension service representative for specific alternative cultural 
practices or herbicide recommendations available in your area. 
INTEGRATED PEST MANAGEMENT . 
This product may be used as part of an Integrated Pest Management (IPM) program that can include 
biological, cultural, and genetic practices aimed at preventing economic pest damage. IPM principles and 
practices include field scouting or other detection methods, correct target pest identification, population 
monitoring, and treating when target pest populations reach locally determined action thresholds. Consult 
your state cooperative extension service, professional consultants or other qualified authorities to 
18

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determine appropriate action treatment threshold levels for treating spe'vlllc pest/crop systems in your 
area. 
PRECAUTIONS 
• Do not apply or drain or flush equipment on or near desirable trees or other plants,or on areas 
where their roots extend, or in locations where the product may be washed or moved into contact 
with their roots, as injury or loss of desirable trees or other plants may result. 
• Do not use on lawns, walks, driveways, tennis courts, golf courses, athletic fields, commercial sod 
operations, or other high-maintenance, fine turfgrass areas, or similar areas. 
• Do not use on grasses grown for seed. 
• Do not apply to irrigated land where tailwater will be used to irrigate crops other than wheat and 
barley. . 
• Do not apply to frozen ground as surface runoff may occur. 
• Do not apply to snow-covered ground. 
• Wheat and barley varieties may differ in their response to various herbicides. Winfield Solutions 
Solutions recommends that you first consult your state experiment station, university, or extension 
agent as to sensitivity to any herbicide. If no information is available, limit the initial use of 
METSULFURON METHYL 60% to a small area. 
• Under certain conditions such as heavy rainfall, prolonged cold weather, or wide fluctuations in 
day/night temperatures prior to or soon after METSULFURON METHYL 60% application, temporary 
discoloration and/or crop injury may occur. METSULFURONMETHYL 60% should not be applied to 
wheat or barley that is stressed by severe weather conditions, drought, low fertility, water-saturated 
soil, disease, or insect damage, as crop injury may result. Risk of injury is greatest when crop is in 
the 2 to 5-leaf stage. Severe winter stress, drought, disease, or insect damage following application 
also may result in crop injury. . 
• The combined treatment effects of METSULFURON METHYL 60% postemergence preceded by 
preemergence wild oat herbicides may cause crop injury to spring wheat when crop stress (soil 
crusting, planting too deep, prolonged cold weather, or drought) causes poor seedling vigor. 
• In the Pacific Northwest, to prevent cold weather-related crop injury, avoid making applications 
during winter months when weather conditions are unpredictable and can be severe. 
• Do not apply to wheat, barley or triticale undersown with legumes, as injury to the forage may result. 
• To reduce the potential for movement of treated soil due to wind erosion, do not apply to powdery 
dry or.light sandy soils until they have been stabilized by rainfall, trashy mulch, reduced tillage, or 
other cultural practices. Injury to immediately adjacent crops may occur when treated soil is blown 
onto land used to produce crops other than cereal grains or pastureirangeland. 
• For ground applications applied to weeds when dry, dusty field conditions exist, control of weeds in 
. wheel track areas may be reduced. The addition of 2,4-0 or MCPA should improve weed control 
under these conditions. 
• Preplant or preemergence applications of 2,4-0 or herbicides containing 2,4-0 made within 2 weeks 
of planting spring cereals may cause crop injury when used in conjunction with early postemergence 
applications of METSULFURON METHYL 60%. For increased crop safety, delay METSULFURON 
METHYL 60% treatment until crop tillering has begun. 
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\ 
---------------------------
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~-----------------S=T=O~R=A~G=E=·~A~N=D~D~IS=P=O=S=A~L----------~------~ 
Pesticide Storage: Store product in original container only. Do not contaminate water, other pesticides, 
fertilizer, food or feed in storage. Store in a cool, dry place. 
Pesticide Disposal: Do not contaminate water, food, or feed by disposal. Waste resulting from the use 
of this product may be disposed of on site or at an approved waste disposal facility. 
Container Disposal: 
For Plastic Containers - Triple rinse (or equivalent) the container. Then offer for recycling or 
reconditioning, or puncture and dispose of in a sanitary landfill, or by incineration, or, if allowed by state 
and local authorities, by burning. If burned, stay out of smoke. 
For Fiber Sacks - Completely empty fiber sack by shaking and tapping sides and bottom to loosen 
clinging particles. Empty residue into manufacturing or application equipment. Then dispose of sack in a 
sanitary landfill or by incineration if allowed by State and local authorities . 
. For Fiber Drums with Liners - Completely empty liner by shaking and tapping sides and bottom to 
loosen clinging particles. Empty residue into application equipment. Then dispose of liner in a sanitary 
landfill or by incineration if allowed by state and local authorities. If drum is contaminated and cannot be 
reused, dispose of in the same manner. 
For Bags Containing Water Soluble Packets - Do not reuse the outer box or the resealable plastic 
bag. 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 
burned, stay out of smoke. If the resealable plastic 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. 
For Metal Containers '{non aerosol} - Triple rinse (or equivalent) the container. Then offer for recycling 
or reconditioning, or puncture and dispose of in a sanitary landfill, or by other procedures approved by 
state and local authorities. 
For Paper and Plastic Bags - Completely empty bag into application equipment. Then dispose of empty 
bag in a sanitary landfill or by incineration, or, if allowed by State and local authorities, by burning. If 
burned, stay out of smoke. 
EXPRESS®, HARMONV® and FINESSE® are trademarks or registered trademarks of E, I. DuPont de Nemours and Company 
"Discover NG" is a registered trademardk of Syngenta Crop Protection 
Assenf' and "Avenge" are trademarks or registered trademarks of BASF Corporation 
"Buctril", "Bronate: "Hoelon", "Di-Syston" and "Puma" are registered trademarks of Bayer CropScience 
"Starane", "Stinger", "Widematch" and "Curtail" are registered trademarks of Dow AgroSciences LLC 
"Roundup" and "Maverick" are registered trademarks of Monsanto Technology LLC 
"Sword" and "Salvo" are trademarks or registered trademarks of Loveland Products, Inc. 
"Aim" is a registered trademark of FMC Corporation 
"Everest" is a registered trademark of Arysta LlfeScience North America 
20

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WARRANTY DISCLAIMER \. 
The directions for use of this product must be followed carefully. TO THE EXTENT CONSISTENT WITH 
APPLICABLE LAW, (1) THE GOODS DELIVERED TO YOU ARE FURNISHED "AS IS" BY 
MANUFACTURER OR SELLER AND (2) MANUFACTURER AND SELLER MAKE NO WARRANTIES, 
GUARANTEES, OR REPRESENTATIONS OF ANY KIND TO BUYER OR USER, EITHER EXPRESS 
OR IMPLIED, OR BY USAGE OF TRADE, STATUTORY OR OTHERWISE, WITH REGARD TO THE 
PRODUCT SOLD, INCLUDING, BUT NOT LIMITED TO MERCHANTABILITY, FITNESS FOR A 
PARTICULAR PURPOSE, USE, OR ELIGIBILITY OF THE PRODUCT FOR ANY PARTICULAR TRADE 
USAGE. UNINTENDED CONSEQUENCES, INCLUDING BUT NQT LIMITED TO INEFFECTIVENESS, 
MAY RESULT BECAUSE OF SUCH FACTORS AS THE PRESENCE OR ABSENCE OF OTHER 
MATERIALS USED IN COMBINATION WITH THE GOODS, OR THE MANNER OF USE OR 
APPLICATION, INCLUDING WEATHER, ALL OF WHICH ARE BEYOND THE CONTROL OF 
MANUFACTURER OR SELLER AND ASSUMED BY BUYER OR USER. THIS WRITING CONTAINS 
ALL OF THE REPRESENTATIONS AND AGREEMENTS BETWEEN BUYER, MANUFACTURER AND 
SELLER, AND NO PERSON OR AGENT OF MANUFACTURER OR SELLER HAS ANY AUTHORITY 
TO MAKE ANY REPRESENTATION OR WARRANTY OR AGREEMENT RELATING IN ANY WAY TO 
THESE GOObs. . 
LlM,TATION OF LlABLITY 
TO THE EXTENT CONSISTENT WITH APPLICABLE LAW, IN NO EVENT SHALL MANUFACTURER 
OR SELLER BE LIABLE FOR SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES, OR FOR 
DAMAGES IN THEIR NATURE OF PENALTIES RELATING TO THE GOODS SOLD, INCLUDING USE, 
APPLICATION, HANDLING, AND DISPOSAL. MANUFACTURER OR SELLER SHALL NOT B~ LIABLE 
TO BUYER OR USER BY WAY OF INDEMNIFICATION TO BUYER OR TO CUSTOMERS OF BUYER, 
IF ANY, OR FOR ANY DAMAGES OR SUMS OF MONEY, CLAIMS OR DEMANDS WHATSOEVER, 
RESULTING FROM OR BY REASON OF, OR RISING OUT OF THE MISUSE, OR FAILURE TO 
FOLLOW LABEL WARNINGS OR INSTRUCTIONS FOR USE, OF THE GOODS SOLD BY 
MANUFACTURER OR SELLER TO BUYER. ALL SUCH RISKS SHALL BE ASSUMED BY THE BUYER, 
USER, OR ITS CUSTOMERS. BUYER'S OR USER'S EXCLUSIVE REMEDY, AND MANUFACTURER'S 
OR SELLER'S TOTAL LIABILITY SHALL BE FOR DAMAGES NOT EXCEEDING THE COST OF THE 
PRODUCT. 
If you do not agree with or do not accept any of directions for use, the warranty disclaimers, or limitations 
on liability, do not use the product, and return it unopened to the Seller, and the purchase price will be 
refunded. 
21