crop-chem-docs/corpus/epa_ppls/279-9636.md

# T-SQUARE HERBICIDE

- EPA Reg No: **279-9636**
- Registrant: FMC CORPORATION 
- Signal word: Caution
- Active ingredients: Thifensulfuron (50%); Tribenuron-methyl (25%)
- Label accepted: 2020-04-27
- Source PDF: https://www3.epa.gov/pesticides/chem_search/ppls/000279-09636-20200427.pdf

---
UNITED STATES ENVIRONMENTAL PROTECTION AGENCY 
 WASHINGTON, DC 20460 
 
 
 
Reg Review Label Acceptable v.20151230 
OFFICE OF CHEMICAL SAFETY 
AND POLLUTION PREVENTION 
April 27, 2020 
 
Edward Bockrath 
Product Registration Manager 
FMC Corporation 
2929 Walnut Street 
Philadelphia, PA 19104 
 
 
 
Subject: Registration Review Label Mitiga tion for Thifensulfuron-methyl and Tribenuron-
methyl 
 Product Name: T-SQUARE HERBICIDE 
 EPA Registration Number: 279-9636 
 Application Date: 12/18/2017 
 Decision Number: 545467 
 
Dear Mr. Bockrath: 
 
The Agency, in accordance with the Federal Insecticide, Fungicide and Rodenticide Act 
(FIFRA), as amended, has completed reviewing all of the information submitted with your 
application to support the Registration Review of the above referenced product in connection 
with the Sulfonylurea (SU) Herbicides Interim Decision, and has concluded that your submission 
is acceptable. The label referred to above, submitted in connection with registration under 
FIFRA, as amended, is acceptable. 
 
Should you wish to add/retain a reference to the company’s website on your label, then please be 
aware that the website becomes labeling under the Federal Insecticide Fungicide and Rodenticide 
Act and is subject to review by the Agency. If the website is false or misleading, the product 
would be misbranded and unlawful to sell or distribute under FIFRA section 12(a)(1)(E). 40 
CFR 156.10(a)(5) list examples of statements EPA may consider false or misleading. In addition, 
regardless of whether a website is referenced on your product’s label, claims made on the 
website may not substantially differ from those claims approved through the registration process. 
Therefore, should the Agency find or if it is brought to our attention that a website contains false 
or misleading statements or claims substantially differing from the EPA approved registration, 
the website will be referred to the EPA’s Office of Enforcement and Compliance. 
 
A copy of your label stamped “Accepted” is enclosed. Products shipped after 12 months from the 
date of this amendment must bear the new revised label. Your release for shipment of the 
product bearing the amended label constitutes acceptance of these conditions. If these conditions 
are not complied with, the registration will be subject to cancellation in accordance with FIFRA 
section 6.

Page 2 of 2 
EPA Reg. No. 279-9636 
Decision No. 545467 
 
If you have any questions about this letter, please contact Erik Kraft by phone at 703-308-9358, 
or via email at Kraft.Erik@epa.gov. 
 
 
 
 
Enclosure 
 
Sincerely, 
 
 
Erik Kraft, Product Manager 24 
Fungicide and Herbicide Branch 
Registration Division (7505P) 
Office of Pesticide Programs

1 
 
 
Dry Flowable
For Use on Wheat (including durum), Barley, Oat, Triticale, Fallow and Burndown
Active Ingredients By Weight
Thifensulfuron-methyl
Methyl 3-[[[[(4-methoxy-6-methyl-1,3,5- triazin-2-yl) amino]carbonyl]amino] sulfonyl]-2-thiophenecarboxylate ……. 50%
Tribenuron-methyl
Methyl 2-[[[[N-(4-methoxy-6-methyl-1,3,5- triazin-2-yl) methylamino]carbonyl] amino]sulfonyl]benzoate …................25%
Other Ingredients . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. . . . . . . . . . . . . . . . . …... . . . . 25%
TOTAL 100.00%
Contains 0.50 lb Thifensulfuron Methyl per pound EPA Est. No. _________
Contains 0.25 lb Tribenuron Methyl per pound Nonrefillable Container Refillable Container
EPA Reg. No. 279-9636 Net: ______________ OR Net: _____________
KEEP OUT OF REACH OF CHILDREN
CAUTION
Si usted no entiende la etiqueta, busque a alguien para que se la explique a usted en 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 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 1-800-331-3148 for emergency medical treatment information.
PRECAUTIONARY STATEMENTS
HAZARDS TO HUMANS AND DOMESTIC ANIMALS
CAUTION! Causes moderate eye irritation. Avoid contact with eyes, skin, or clothing. Wash thoroughly with soap 
and water after handling and before eating, drinking, chewing gum, using tobacco, or using the toilet. Remove and 
wash contaminated clothing before reuse.
PERSONAL PROTECTIVE EQUIPMENT (PPE)
Applicators and other handlers must wear:
Long-sleeved shirt and long pants.
Chemical Resistant Gloves (such as butyl rubber, natural rubber, neoprene rubber or nitrile rubber) >14 mls.
Shoes plus socks.
Follow manufacturer’s instructions for cleaning/maintaining PPE. If no such instructions for washables exist, use 
detergent and hot water. Keep and wash PPE separately from other laundry.
Sold By:
FMC Corporation
2929 Walnut Street
Philadelphia, PA 19104
yyyyyyyyyyyyy
THIFENSULFURON METHYL GROUP 2 HERBICIDE
TRIBENURON METHYL GROUP 2 HERBICIDE
04/27/2020
279-9636

2 
 
USER SAFETY RECOMMENDATIONS
USERS SHOULD: Wash thoroughly with soap and water after handling and before eating, drinking, chewing gum, 
using tobacco or using the toilet. Remove and wash contaminated clothing before reuse.
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 cleaning equipment or disposing of equipment washwaters or 
rinsate.
Groundwater Advisory
This product has properties and characteristics associated with chemicals detected in groundwater. This product may 
leach into groundwater if used in areas where soils are permeable, particularly where the water table is shallow.
Surface Water Advisory
This product may impact surface water quality due to runoff of rain water. This is especially true for poorly draining 
soils and soils with shallow ground water. This product is classified as having high potential for reaching surface 
water via runoff for several weeks or more after application. A level, well-maintained vegetative buffer strip 
between areas to which this product is applied and surface water features such as ponds, streams, and springs will 
reduce the potential loading of this product from runoff water and sediment. Runoff of this product will be greatly 
reduced by avoiding applications when rainfall or irrigation is expected to occur within 48 hours.
Windblown Soil Particles Advisory
This product has the potential to move off-site due to wind erosion. Soils that are subject to wind erosion usually 
have a high silt and/or fine to very fine sand fractions and low organic matter content. Other factors which can affect 
the movement of windblown soil include the intensity and direction of prevailing winds, vegetative cover, site slope, 
rainfall, and drainage patterns. Avoid applying this product if prevailing local conditions may be expected to result 
in off-site movement.
Non-target Organism Advisory
This product is toxic to plants and may adversely impact the forage and habitat of non-target organisms, including
pollinators, in areas adjacent to the treated area. Protect the forage and habitat of non-target organisms by 
minimizing spray drift. For further guidance and instructions on how to minimize spray drift, refer to the Spray Drift 
Management section of this label.
PRODUCT INFORMATION
T-SQUARE™ herbicide is a dry flowable granule that is used for selective postemergence weed control in wheat 
(including durum), barley, oat, triticale and fallow. The best control is obtained when T-SQUARE herbicide is 
applied to young, actively growing weeds.
The use rate will depend on weed spectrum and size of weed at time of application. The degree and duration of 
control may depend on the following:
• weed spectrum and infestation intensity
• weed size at application
• environmental conditions at and following treatment
T-SQUARE herbicide is noncorrosive, nonflammable, nonvolatile, and does not freeze. T-SQUARE herbicide must 
be mixed in water and applied as a uniform broadcast spray.
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.

3 
 
T-SQUARE herbicide is for use on wheat, barley, oat, triticale, and fallow in most states, check with your state
extension or Dept. of Agriculture before use, to be certain T-SQUARE herbicide is registered in your state.
To the extent consistent with applicable law, FMC will not be responsible for losses or damages resulting from the 
use of this product in any manner not specified by FMC.
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.
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.
Chemical Resistant Gloves (such as butyl rubber, natural rubber, neoprene rubber or nitrile rubber) >14 mls.
Shoes plus socks.
RESTRICTIONS
Injury to or loss of adjacent sensitive crops, desirable trees or vegetation may result from failure to observe the 
following:
• DO NOT apply, drain or flush equipment on or near desirable trees or other plants or on areas where their roots 
may extend, or in locations where the chemical may be washed or moved into contact with their roots.
• DO NOT use on lawns, walks, driveways, or tennis courts. Prevent drift of spray to desirable plants.
• DO NOT apply to wheat, barley, triticale or oat crops underseeded with another crop.
• DO NOT harvest sooner than 45 days after the last application of T-SQUARE herbicide.
T-SQUARE herbicide is only registered on wheat, barley, oat, triticale and fallow. DO NOT use on any other crop.
The total rate of T-SQUARE herbicide for wheat (including durum), barley and triticale cannot exceed 1.0 oz/A 
(0.0312 lb/A thifensulfuron methyl and 0.0156 lb/A tribenuron methyl) of product applied to any one crop during 
one year.
The total rate of T-SQUARE herbicide for oat (spring and winter) cannot exceed 0.4 oz/A (0.0125 lb/A 
thifensulfuron methyl and 0.0063 lb/A tribenuron methyl) of product applied to any one crop during one year.
PRECAUTIONS
Injury to or loss of adjacent sensitive crops, desirable trees or vegetation may result from failure to observe the 
following:
• Take all necessary precautions to avoid all direct or indirect contact (such as spray drift) with non-target plants or 
areas.
• Carefully observe all sprayer cleanup instructions both prior to and after using this product, as spray tank residue 
may damage crops other than wheat, barley, triticale or oat.
Dry, dusty field conditions may result in reduced control in wheel track areas.
Varieties of wheat (including durum), barley and triticale may differ in their response to various herbicides. FMC
advises 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 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 T-SQUARE herbicide application, temporary discoloration and/or crop injury

4 
 
may occur. To reduce the potential of crop injury, tank mix T-SQUARE herbicide with 2,4-D (ester formulations 
perform best–see Tank Mixtures) and apply after the crop is in the tillering stage of growth.
T-SQUARE herbicide cannot be applied to wheat, barley. triticale or oat 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.
Environmental Conditions and Biological Activity
T-SQUARE herbicide is absorbed primarily through the foliage of plants, rapidly inhibiting the growth of 
susceptible weeds. One to 3 weeks after application to weeds (2 to 5 weeks for wild garlic), leaves of susceptible 
plants appear chlorotic, and the growing point subsequently dies.
T-SQUARE herbicide 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.
The herbicidal action of T-SQUARE herbicide may be affected in crops stressed from adverse environmental 
conditions (including extreme temperatures or moisture), abnormal soil conditions, cultural practices, or variations 
in crop variety. In warm, moist conditions, the expression of herbicide symptoms is accelerated; in cold, dry 
conditions, expression of herbicide symptoms is delayed. In addition, weeds hardened-off by drought stress are less 
susceptible to T-SQUARE herbicide.
WEED RESISTANCE MANAGEMENT
T-SQUARE herbicide, which contains the active ingredients Thifensulfuron methyl and Tribenuron methyl, is a 
group 2 herbicide based on the mode of action classification system of the Weed Science Society of America.
Proactively implementing diversified weed control strategies to minimize selection for weed populations resistant to 
one or more herbicides is a best practice. A diversified weed management program may include the use of multiple 
herbicides with different sites of action and overlapping weed spectrum with or without tillage operations and/or 
other cultural practices. Research has demonstrated that using the labeled rate and directions for use is important to 
delay the selection for resistance.
The continued effectiveness of this product depends on the successful implementation of a weed resistance 
management program.
To aid in the prevention of developing weeds resistant to this product, users should:
• Scout fields before application to ensure herbicides and rates will be appropriate for the weed species and weed 
sizes present.
• Start with a clean field, using either a burndown herbicide application or tillage.
• Control weeds early when they are relatively small (less than 4 inches).
• Apply full rates of T-SQUARE herbicide for the most difficult to control weed in the field at the specified time 
(correct weed size) to minimize weed escapes.
• Scout fields after application to detect weed escapes or shifts in control of weed species.
• Control weed escapes before they reproduce by seed or proliferate vegetatively.
• Report any incidence of non-performance of this product against a particular weed to your FMC representative, 
local retailer, or county extension agent.
• Contact your FMC representative, crop advisor, or extension agent to find out if suspected resistant weeds to these 
MOAs have been found in your region. DO NOT assume that each listed weed is being controlled by multiple sites 
of action. Products with multiple active ingredients are intended to broaden the spectrum of weeds that are 
controlled. Some weeds may be controlled by only one of the active ingredient in this product.
• If resistance is suspected, treat weed escapes with an herbicide having a site of action other than Group 2 and/or 
use nonchemical methods to remove escapes, as practical, with the goal of preventing further seed production.
• Suspected herbicide-resistant weeds may be identified by these indicators:
- Failure to control a weed species normally controlled by the herbicide at the dose applied, especially if control
is achieved on adjacent weeds;
- A spreading patch of non-controlled plants of a particular weed species; and

5 
 
- Surviving plants mixed with controlled individuals of the same species.
Additionally, users should follow as many of the following herbicide resistance management practices as is 
practical:
• Use a broad spectrum soil-applied herbicide with other sites of action as a foundation in a weed control program.
• Utilize sequential applications of herbicides with alternative sites of action.
• Rotate the use of this product with non-Group 2 herbicides.
• Avoid making more than two applications of T-SQUARE herbicide and any other Group 2 herbicides within a 
single growing season unless mixed with an herbicide with a different site of action with an overlapping spectrum 
for the difficult-to-control weeds.
• Incorporate non-chemical weed control practices, such as mechanical cultivation, crop rotation, cover crops and 
weed-free crop seeds, as part of an integrated weed control program.
• Use good agronomic principles that enhance crop development and crop competitiveness.
• Thoroughly clean plant residues from equipment before leaving fields suspected to contain resistant weeds.
• Manage weeds in and around fields, during and after harvest to reduce weed seed production.
Integrated Pest Management
This product may be used as part of an Integrated Pest Management (IPM) program that can include biological, 
cultural, and genetic practices aimed at preventing economic pest damage. IPM principles and practices include field 
scouting or other detection methods, correct target pest identification, population monitoring, and treating when 
target pest populations reach locally determined action thresholds. Consult your state cooperative extension service, 
professional consultants or other qualified authorities to determine appropriate action treatment threshold levels for 
treating specific pest/crop systems in your area.
RATE CONVERSION CHART FOR T-SQUARE HERBICIDE
Ounces of 
T-SQUARE herbicide/A
Pounds of 
T-SQUARE herbicide /A Active Ingredient
Pounds of Active 
Ingredient/A
0.3 0.0187
Thifensulfuron methyl 0.0094
Tribenuron methyl 0.0047
0.4 0.025
Thifensulfuron methyl 0.0125
Tribenuron methyl 0.0063
0.5 0.0312
Thifensulfuron methyl 0.0156
Tribenuron methyl 0.0078
0.6 0.0375
Thifensulfuron methyl 0.0187
Tribenuron methyl 0.0094
1.0 0.0625
Thifensulfuron methyl 0.0312
Tribenuron methyl 0.0156
LABELLED USES
T-SQUARE herbicide provides selective postemergence control of certain broadleaf weeds in wheat (including 
durum), barley, oat (spring and winter), triticale, post-harvest burndown, pre-plant burndown and fallow.

6 
 
Wheat (Including Durum), Barley, and Triticale
Application and Use Rate Information
Use Rates (oz of 
T-SQUARE 
herbicide per acre)
Active 
Ingredient
Pounds of Active 
Ingredient per acre
Make applications after the crop is in the 2-leaf 
stage, but before the flag leaf is visible.
Apply 0.3 to 0.6 oz/A T-SQUARE herbicide to 
wheat (including durum), barley or triticale.
Use 0.3 to 0.4 oz/A T-SQUARE herbicide for 
light infestation of the weeds listed under 
Weeds Controlled. Conditions at application 
need to be optimum for effective treatment of 
these weeds.
Use 0.5 oz/A T-SQUARE herbicide for heavy 
infestation of the weeds listed under Weeds 
Partially Controlled.
Use 0.6 oz/A T-SQUARE herbicide for heavy 
infestation of the weeds listed under Weeds
Partially Controlled or when application timing 
and environmental conditions are marginal 
(refer to Environmental Conditions and 
Biological Activity for best performance).
Two applications of T-SQUARE herbicide may 
be made provided the total amount applied 
does not exceed 1.0 oz/A per year.
0.3 to 0.6
Thifensulfuron 
methyl
0.0094 to 0.0187
Tribenuron 
methyl 0.0047 to 0.0094
RESTRICTIONS in Wheat (including durum), Barley, and Triticale:
x T-SQUARE herbicide is only registered for use on wheat, barley, oat, triticale and fallow. DO NOT use 
on any other crop.
x DO NOT apply to wheat, barley, or triticale crops underseeded with another crop.
x DO NOT harvest sooner than 45 days after the last application of T-SQUARE herbicide.
x DO NOT use less than 0.3 oz/A T-SQUARE herbicide.
x DO NOT apply more than 0.6 oz/A of T-SQUARE herbicide in a single application (maximum active 
ingredient per single application is 0.0187 lb/A thifensulfuron methyl and 0.0094 lb/A tribenuron 
methyl).
x DO NOT exceed two applications of T-SQUARE herbicide per year in Wheat (including durum), 
Barley and Triticale when using reduced application rates.
x DO NOT apply more than 1.0 oz/A of T-SQUARE herbicide per year (maximum active ingredient load 
per year is 0.0312 lb/A thifensulfuron methyl and 0.0156 lb/A tribenuron methyl).
x The Minimum Retreatment Interval is 14 days.
x PHI is 7 days for forage, 30 days for hay, and 45 days for wheat, barley and triticale.
PRECAUTIONS in Wheat (including durum), Barley, and Triticale:
Carefully observe all sprayer cleanup instructions both prior to and after using this product, as spray tank residue 
may damage crops other than wheat, barley, triticale, and oat.
T-SQUARE herbicide must not be applied to wheat, barley, and triticale that is stressed by severe weather 
conditions, drought (including low levels of subsoil moisture), 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.

7 
 
Wheat, barley, and triticale may differ in their response to various herbicides. FMC suggests 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 T-SQUARE herbicide to a small area.
Winter Oat
Application and Use Rate Information
Use Rates (oz of 
T-SQUARE 
herbicide per acre)
Active 
Ingredient
Pounds of Active 
Ingredient per acre
Make applications after the crop is in the 2-
leaf stage, but before the flag leaf is visible.
Apply 0.3 to 0.4 oz/A T-SQUARE herbicide 
for control of the weeds listed in Weeds 
Controlled table. 
DO NOT make more than one application of 
T-SQUARE herbicide per year on oat.
0.3 to 0.4
Thifensulfuron 
methyl
0.0094 to 0.0125
Tribenuron 
methyl
0.0047 to 0.0063
RESTRICTIONS in Winter Oat:
x T-SQUARE herbicide is only registered for use on wheat, barley, oat, triticale and fallow. DO NOT use 
on any other crop.
x DO NOT harvest sooner than 45 days after the last application of T-SQUARE herbicide.
x DO NOT apply to oat crops underseeded with another crop.
x DO NOT use less than 0.3 oz/A T-SQUARE herbicide.
x DO NOT apply more than 0.4 oz/A of T-SQUARE herbicide in a single application (maximum active 
ingredient per single application is 0.0125 lb/A thifensulfuron methyl and 0.0063 lb/A tribenuron 
methyl). 
x DO NOT apply more than 0.4 oz/A of T-SQUARE herbicide per year (maximum active ingredient load 
per year is 0.0125 lb/A thifensulfuron methyl and 0.0063 lb/A tribenuron methyl) in Winter Oat. 
x DO NOT make more than one application (or more than 0.0063 lb/A of active ingredient tribenuron-
methyl) of T-SQUARE herbicide per year on Winter Oat.
x The REI is 12 hours.
PRECAUTIONS in Winter Oat:
Carefully observe all sprayer cleanup instructions both prior to and after using this product, as spray tank residue 
may damage crops other than wheat, barley, triticale, and oat.
T-SQUARE herbicide must not be applied to oat that is stressed by severe weather conditions, drought (including 
low levels of subsoil moisture), 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.

8 
 
Spring Oat
Application and Use Rate Information
Use Rates (oz of 
T-SQUARE 
herbicide per acre)
Active 
Ingredient
Pounds of Active 
Ingredient per acre
Make applications after the crop is in the 3-
leaf stage but before jointing. 
Apply 0.3 to 0.4 oz/A T-SQUARE herbicide 
for control of the weeds listed in Weeds 
Controlled table. 
DO NOT make more than one application of 
T-SQUARE herbicide per year on oat.
0.3 to 0.4
Thifensulfuron 
methyl 0.0094 to 0.0125
Tribenuron 
methyl 0.0047 to 0.0063
RESTRICTIONS in Spring Oat:
x T-SQUARE herbicide is only registered for use on wheat, barley, oat, triticale and fallow. DO NOT use 
on any other crop.
x DO NOT harvest sooner than 45 days after the last application of T-SQUARE herbicide.
x DO NOT apply to oat crops underseeded with another crop.
x DO NOT use less than 0.3 oz/A T-SQUARE herbicide.
x DO NOT apply more than 0.4 oz/A of T-SQUARE herbicide in a single application (maximum active 
ingredient per single application is 0.0125 lb/A thifensulfuron methyl and 0.0063 lb/A tribenuron 
methyl). 
x DO NOT apply more than 0.4 oz/A of T-SQUARE herbicide per year (maximum active ingredient load 
per year is 0.0125 lb/A thifensulfuron methyl and 0.0063 lb/A tribenuron methyl) in Spring Oat. 
x DO NOT make more than one application (or more than 0.0063 lb/A of active ingredient tribenuron-
methyl) of T-SQUARE herbicide per year on Spring Oat.
x The REI is 12 hours.
x DO NOT use on "Ogle", "Porter" or "Premier" varieties as crop injury can occur.
PRECAUTIONS in Spring Oat:
Carefully observe all sprayer cleanup instructions both prior to and after using this product, as spray tank residue 
may damage crops other than wheat, barley, triticale, and oat.
T-SQUARE herbicide must not be applied to oat that is stressed by severe weather conditions, drought (including 
low levels of subsoil moisture), 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.

9 
 
Pre-Plant Burndown
Application and Use Rate Information
Use Rates 
(oz of 
T-SQUARE 
herbicide
per acre)
Active 
Ingredient
Pounds of 
Active 
Ingredient per 
acre
T-SQUARE herbicide may be used as a burndown 
treatment to wheat (including durum), barley, triticale and 
oat to control emerged weeds prior to, or shortly after 
planting (prior to emergence). Make applications when the 
majority of weeds have emerged and are actively growing. 
T-SQUARE herbicide can also be used as a burndown 
treatment prior to planting other crops including rice,
soybeans, corn, grain sorghum, sugarbeets, winter rape, 
canola, and cotton. See “CROP ROTATION” before 
planting other crops.
Apply 0.3 to 0.6 oz/A T-SQUARE herbicide as a burndown 
treatment before planting all crops except cotton.
Apply 0.3 to 0.5 oz/A T-SQUARE herbicide as a burndown 
treatment before planting cotton. Allow at least 14 days
between application of T-SQUARE herbicide and planting 
of cotton. Include a nonionic surfactant, petroleum based 
crop oil concentrate, or vegetable-seed oil-based product 
(methylated seed oils are considered a vegetable seed-based 
oil). If another herbicide is tank mixed with T-SQUARE 
herbicide to increase the broadleaf weed spectrum, select 
adjuvants based on the adjuvant limitations of the 
companion herbicide.
Cotton Precaution: Seedling disease, nematodes, cold 
weather, deep planting (more than 2”), excessive moisture, 
high salt concentration, and/or drought may weaken cotton 
seedlings and increase the possibility of crop injury. Cotton 
resumes normal growth once favorable growing conditions 
return.
T-SQUARE herbicide may be applied alone or in 
combination with other suitable registered burndown 
herbicides (see TANK MIXTURES - PRE-PLANT 
BURNDOWN).
Use the higher end of the rate range when weed infestation 
is heavy or predominantly consists of those weeds listed 
under PARTIAL CONTROL or when application timing 
and environmental conditions are marginal.
Sequential treatments of T-SQUARE herbicide may be 
made provided the total amount of T-SQUARE herbicide 
applied does not exceed 1.0 oz/A per year.
0.3 to 0.6
Thifensulfuron 
methyl
0.0094 to 0.0187
Tribenuron 
methyl
0.0047 to 0.0094

10 
 
RESTRICTIONS for Pre-Plant Burndown (Wheat including durum, Barley, and other crops):
x DO NOT use less than 0.3 oz/A T-SQUARE herbicide.
x DO NOT apply more than 0.6 oz/A of T-SQUARE herbicide in a single application (maximum active 
ingredient per single application is 0.0187 lb/A thifensulfuron methyl and 0.0094 lb/A tribenuron 
methyl).
x DO NOT exceed two applications of T-SQUARE herbicide per year as a Pre-Plant Burndown when 
using reduced application rates.
x DO NOT apply more than 1.0 oz/A of T-SQUARE herbicide per year (maximum active ingredient load 
per year is 0.0312 lb/A thifensulfuron methyl and 0.0156 lb/A tribenuron methyl).
x The Minimum Retreatment Interval is 14 days.
Fallow
Application and Use Rate Information
Use Rates (oz of 
T-SQUARE
herbicide per acre)
Active 
Ingredient
Pounds of Active 
Ingredient per acre
T-SQUARE herbicide may be used as a 
fallow treatment, in the spring or fall when 
the majority of weeds have emerged and are 
actively growing.
Apply 0.3 to 0.6 oz/A T-SQUARE herbicide
to fallow. Two applications of T-SQUARE 
herbicide may be made, provided the total 
amount applied does not exceed 1.0 oz/A per 
year.
DO NOT use less than 0.3 oz/A T-SQUARE 
herbicide.
T-SQUARE herbicide may be applied in 
combination with other suitable registered 
fallow herbicides (see TANK MIXTURES -
FALLOW).
0.3 to 0.6
Thifensulfuron 
methyl 0.0094 to 0.0187
Tribenuron 
methyl 0.0047 to 0.0094
RESTRICTIONS in Fallow:
x DO NOT use less than 0.3 oz/A T-SQUARE herbicide unless otherwise specified by FMC.
x DO NOT apply more than 0.6 oz/A T-SQUARE herbicide in a single application (maximum active 
ingredient per single application is 0.0187 lb/A thifensulfuron methyl and 0.0094 lb/A tribenuron 
methyl).
x DO NOT apply more than 1.0 oz /A T-SQUARE herbicide per year (maximum active ingredient load 
per year is 0.0312 lb/A thifensulfuron methyl and 0.0156 lb/A tribenuron methyl).
x DO NOT exceed two applications of T-SQUARE herbicide per year in Fallow when using reduced 
application rates.
x The Minimum Retreatment Interval is 14 days.

11 
 
APPLICATION TIMING
Cereals:
In Wheat (Including Durum), Barley, Winter Oat and Triticale, make applications after the crop is in the 2-leaf 
stage, but before the flag leaf is visible.
In Spring Oat, make applications after the crop is in the 3 leaf stage, but before jointing. DO NOT use on "Ogle", 
"Porter" or "Premier" varieties as crop injury can occur.
Since T-SQUARE herbicide has very little or no soil activity, it controls only those weeds that have germinated; 
therefore, apply T-SQUARE herbicide when all or most of the weeds have germinated. Annual broadleaf weeds 
needs to be past the cotyledon stage, actively growing, and less than 4" tall or wide. Wild garlic plants needs to be 
less than 12" tall with 2" to 4" of new growth. See Specific Weed Problems for more information.
Rainfall immediately after treatment can wash T-SQUARE herbicide off of weed foliage, resulting in reduced weed 
control. Several hours of dry weather are needed to allow T-SQUARE herbicide to be sufficiently absorbed by weed 
foliage.
Fallow:
T-SQUARE herbicide may be used as a fallow treatment, in the spring or fall when the majority of weeds have 
emerged and are actively growing.
Pre-Plant Burndown:
T-SQUARE herbicide may be used as a burndown treatment to wheat (including durum), barley, triticale and oat to 
control emerged weeds prior to, or shortly after planting (prior to emergence). Make applications when the majority 
of weeds have emerged and are actively growing. T-SQUARE herbicide can also be used as a burndown treatment 
prior to planting other crops including soybeans, corn, and cotton. See “CROP ROTATION” for the minimum time 
interval required before planting other crops.
SURFACTANTS
Unless otherwise specified, add an FMC specified nonionic surfactant having at least 80% active ingredient at 1 to 2 
qt per 100 gal of spray solution (0.25 to 0.5% v/v - refer to TANK MIXTURES for specific adjuvant directions
when T-SQUARE herbicide is used in a tank mix).
For pre-plant burndown in Cotton, include a nonionic surfactant, petroleum based crop oil concentrate, or a 
vegetable-seed oil-based product (methylated seed oils are considered a vegetable seed-based oil). If another 
herbicide is tank mixed with T-SQUARE herbicide to increase the broadleaf weed spectrum, select adjuvants based 
on the adjuvant limitations of the companion herbicide.
Consult your agricultural dealer, applicator, or FMC representative for a listing of advised surfactants. Antifoaming 
agents may be used if needed.
DO NOT use low rates of liquid nitrogen fertilizer solution as a substitute for surfactant.

12 
 
WEEDS CONTROLLED
T-SQUARE herbicide effectively controls the following weeds when used according to label directions:
Annual knawel
Annual sowthistle
Black mustard
Blue/Purple mustard
Broadleaf dock
Bur buttercup
Bushy wallflower/Treacle mustard
Clasping pepperweed
Coast fiddleneck
Common buckwheat
Common chickweed
Common cocklebur *
Common groundsel
Common lambsquarters
Common radish
Common ragweed *
Common sunflower
Corn chamomile
Corn gromwell*
Corn spurry
Cowcockle
Cress (mouse-ear)
Curly dock
False chamomile
Field chickweed
Field pennycress
Filaree (redstem, Texas)
Flixweed
Green smartweed
Henbit
Kochia *
Ladysthumb
Lanceleaf sage *
London rocket
Marshelder
Mayweed chamomile
Miners lettuce
Narrowleaf lambsquarters
Nightflowering catchfly
Pennsylvania smartweed
Pineappleweed
Prickly lettuce *
Prostrate knotweed
Prostrate pigweed
Redmaids
Redroot pigweed
Russian thistle *
Scentless chamomile/mayweed
Shepherd's-purse
Slimleaf lambsquarters
Smallflower buttercup
Smallseed falseflax
Stinking chickweed
Stinking mayweed/dogfennel
Swinecress
Tansymustard
Tarweed fiddleneck
Tumble/ Jim Hill mustard
Volunteer lentils
Volunteer peas
Volunteer sunflower
Wild buckwheat*
Wild chamomile
Wild garlic*
Wild mustard
Wild radish*
WEEDS PARTIALLY CONTROLLED**
T-SQUARE herbicide partially controls the following weeds when used according to label directions:
Canada thistle*
Carolina geranium
Catchweed bedstraw
Cutleaf eveningprimrose
Mallow (common, little)
Nightshade (cutleaf, hairy)
Vetch* (common, hairy)
* See SPECIFIC WEED PROBLEMS for more information.
**Partial Control: A visual reduction of weed population as well as a significant loss of vigor. For best results, use the highest labeled rate of
T-SQUARE herbicide per acre and include a tank mix partner such as 2,4-D, MCPA, Buctril® herbicide or Banvel® herbicide/Clarity®
herbicide (refer to TANK MIXTURES).
SPECIFIC WEED PROBLEMS
Canada thistle: For control in wheat, barley and triticale, use 0.6 oz/A T-SQUARE herbicide plus surfactant when 
all thistles are 4” to 8” with 2” to 6” of new growth. Make the application in the spring. Control will be improved by 
using T-SQUARE herbicide in combination with 2,4-D.
For control in oat, use 0.4 oz/A T-SQUARE herbicide plus 2,4-D.
Common cocklebur, Common ragweed, Lanceleaf sage: In wheat, barley and triticale, apply T-SQUARE 
herbicide at 0.4 to 0.5 oz/A in combination with 2,4-D at rates from 1/4 to 3/8 lb active ingredient (ester 
formulations work best) when weeds are small and actively growing. When using 1/4 lb active ingredient of 2,4-D, 
be sure to add surfactant at the rate of 1/4 to 1/2 quart per 100 gallons of spray solution (0.06 to 0.125% v/v—use 
the higher rate under stress conditions).
For control in oat, use 0.4 oz/A T-SQUARE herbicide plus 2,4-D.
Corn gromwell, Wild buckwheat: For control in wheat, barley and triticale, use 0.5 to 0.6 oz/A T-SQUARE 
herbicide plus surfactant.
For control in oat, use 0.4 oz/A T-SQUARE herbicide plus 2,4-D, MCPA or Buctril® Herbicide.

13 
 
Kochia, Russian thistle, Prickly lettuce: Naturally occurring resistant biotypes of these weeds are known to occur. 
For best results, use T-SQUARE herbicide in a tank mix with dicamba and 2,4-D; or Bromoxynil (including
Buctril® Herbicide) and 2,4-D (3/4 - 1 pt Buctril® Herbicide + 1/4 - 3/8 lb active ingredient 2, 4-D ester). 
T-SQUARE herbicide need to be applied in the spring when weeds are less than 2” tall or 2” across and are actively 
growing.
Vetch (common and hairy): For control in wheat, barley and triticale, use 0.5 to 0.6 oz/A T-SQUARE herbicide 
plus surfactant when vetch is less than 6” in length. For severe infestations of vetch, or when vetch is greater than 6” 
in length, use T-SQUARE herbicide in combination with 2,4-D or MCPA.
For control in oat, use 0.4 oz/A T-SQUARE herbicide plus 2,4-D or MCPA.
Wild garlic: For control in wheat, barley and triticale, use 0.5 to 0.6 oz/A T-SQUARE herbicide plus surfactant 
when wild garlic plants are less than 12” tall with 2” to 4” of new growth. For severe infestations, use 0.6 oz/A T-
SQUARE herbicide.
Plants hardened-off by cold weather and/or drought stress may be more difficult to control. Thorough spray 
coverage of all garlic plants is essential. Typical symptoms of dying garlic plants may not be noticeable for 2 to 5 
weeks.
For control in oat, use 0.4 oz/A T-SQUARE herbicide plus 2,4-D or MCPA.
Wild radish: For best results in wheat, barley and triticale, apply 0.4 to 0.6 oz/A T-SQUARE herbicide plus
surfactant either in the fall or spring to wild radish rosettes less than 6 inches in diameter. Applications made later 
than 30 days after weed emergence will result in partial control. For increased control of severe wild radish 
infestations, or wild radish emerged greater than 30 days, apply T-SQUARE herbicide at 0.3 oz/A in combination 
with MCPA at 1/4 lb active ingredient per acre. Surfactant is required when tank mixing with MCPA, add 1 quart 
per 100 gallons of spray solution (0.25% vol/vol). Fall applications need to be made prior to hardening off of plants.
For control in oat, use 0.4 oz/A T-SQUARE herbicide plus 2,4-D or MCPA.
TANK MIXTURES - FALLOW
T-SQUARE herbicide may be used as a fallow treatment, and needs to be tank mixed with other herbicides that are 
registered for use in fallow.
It is the pesticide user’s responsibility to ensure that all products are registered for the intended use. Read and 
follow the applicable restrictions, limitations and directions for use on all product labels involved in tank mixing. 
Users must follow the most restrictive directions for use and precautionary statements of each product in the tank 
mixture. If the instructions on the tank mix partner label conflict with this T-SQUARE herbicide, then DO NOT
use in a tank mixture with T-SQUARE herbicide.
TANK MIXTURES - PRE-PLANT BURNDOWN
T-SQUARE herbicide may be used as a pre-plant burndown treatment alone or tank mixed with other herbicides that 
are registered for use as a pre-plant burndown product, such as glyphosate, 2,4-D, and/or dicamba.
It is the pesticide user’s responsibility to ensure that all products are registered for the intended use. Read and 
follow the applicable restrictions, limitations and directions for use on all product labels involved in tank mixing. 
Users must follow the most restrictive directions for use and precautionary statements of each product in the tank 
mixture. If the instructions on the tank mix partner label conflict with this T-SQUARE herbicide, then DO NOT
use in a tank mixture with T-SQUARE herbicide.
TANK MIXTURES - Cereals
(Wheat (including durum), barley, triticale, oat and fallow)
T-SQUARE herbicide may be tank mixed with other suitable registered herbicides to control weeds listed as 
suppressed, weeds resistant to T-SQUARE herbicide or weeds not listed under Weeds Controlled. T-SQUARE 
herbicide can also be mixed with registered fungicides, insecticides, or liquid fertilizer for use on wheat, barley,
triticale, oat, or fallow.

14 
 
It is the pesticide user’s responsibility to ensure that all products are registered for the intended use. Read and 
follow the applicable restrictions, limitations and directions for use on all product labels involved in tank mixing. 
Users must follow the most restrictive directions for use and precautionary statements of each product in the tank 
mixture. If the instructions on the tank mix partner label conflict with this T-SQUARE herbicide, then DO NOT
use in a tank mixture with T-SQUARE herbicide.
With 2,4-D (amine or ester) or MCPA (amine or ester)
T-SQUARE herbicide may be tank mixed with the amine and ester formulations 2,4-D and MCPA herbicides for 
use on wheat, barley, triticale and oat.
For best results in the Red River Valley and adjacent areas of North Dakota and Minnesota, add the ester 
formulations of 2,4-D or MCPA herbicides to the tank at 3/8 lb active ingredient (such as 3/4 pt of a 4 lb/gal 
product, 1/2 pt of a 6 lb/gal product). No additional surfactant is needed with this mixture.
For best results in other areas, add the ester formulations of 2,4-D or MCPA herbicides to the tank at 1/4 to 3/8 lb 
active ingredient (such as 1/2 - 3/4 pt of a 4 lb/gal product, 1/3 - 1/2 pt of a 6 lb/gal product). Surfactant may be 
added to the mixture at 1/2 to 1 qt per 100 gal of spray solution (0.125 to 0.25% v/v); however, adding surfactant 
may increase the potential for crop injury, especially at the higher phenoxy rates.
Higher rates of 2,4-D or MCPA may be used, but DO NOT exceed the highest rate allowed by those respective 
labels. Read and follow all label instructions on timing, precautions, and warnings for these herbicides before using 
these tank mixtures.
With dicamba (including BANVEL® Herbicide/CLARITY® Herbicide)
T-SQUARE herbicide may be tank mixed with 1/16 to 1/8 lb active ingredient dicamba (including 2-4 fluid oz 
Banvel® herbicide or 2-4 fluid oz Clarity® herbicide). Use higher specified rates when weed infestation is heavy. 
Surfactant may be added to the mixture at 1/2 to 1 qt per 100 gal of spray solution (0.125 to 0.25% v/v); however, 
adding surfactant may increase the potential for crop injury. Refer to the specific dicamba label for application 
timing and restrictions.
Tank mixes of T-SQUARE herbicide plus dicamba may result in reduced control of some broadleaf weeds.
With 2,4-D (amine or ester) and BANVEL® Herbicide/CLARITY® Herbicide
T-SQUARE herbicide may be applied in a 3-way tank mix with formulations of dicamba and 2,4-D. Make 
application of T-SQUARE herbicide + 1/16 to 1/8 lb active ingredient dicamba (including 2-4 fluid oz Banvel ®
herbicide or 2-4 fluid oz Clarity® herbicide) + 1/4 - 3/8 lb active ingredient 2,4-D Ester or Amine per acre. Use 
higher specified rates when weed infestation is heavy. Surfactant may be added to the mixture at 1/2 to 1 qt per 100 
gal of spray solution (0.125 to 0.25% v/v); however, adding surfactant may increase the potential for crop injury. 
Consult the specific 2,4-D label, dicamba label, or local guidance for more information and restrictions.
Apply this 3-way combination to winter wheat and winter oat after the crop is tillering and prior to jointing (first 
node). In Spring Wheat (including Durum) and Spring Oat, apply after the crop is tillering and before it exceeds the 
5-leaf stage.
In Spring Barley, apply after the crop is tillering and before it exceeds the 4-leaf stage.
With bromoxynil (including BUCTRIL® Herbicide, BRONATE® Herbicide, or BRONATE Advanced™
Herbicide)
T-SQUARE herbicide may be tank mixed with bromoxynil containing herbicides registered for use on wheat, 
barley, triticale, or fallow. For best results, add bromoxynil containing herbicides to the tank at 3/16 to 3/8 lb active 
ingredient per acre (including Bronate® herbicide or Buctril® herbicide at 3/4 - 1 1/2 pt per acre).
It is the pesticide user’s responsibility to ensure that all products are registered for the intended use. Read and 
follow the applicable restrictions, limitations and directions for use on all product labels involved in tank mixing. 
Users must follow the most restrictive directions for use and precautionary statements of each product in the tank 
mixture. If the instructions on the tank mix partner label conflict with this T-SQUARE herbicide, then DO NOT
use in a tank mixture with T-SQUARE herbicide.

15 
 
With EXPRESS® Branded Herbicide
T-SQUARE herbicide may be tank mixed with EXPRESS® herbicide or EXPRESS® XP herbicide based on local 
guidance. Read and follow all label instructions on timing, precautions, and warnings for these herbicides before 
using this tank mixture.
With ALLY® XP Herbicide
T-SQUARE herbicide may be tank mixed with ALLY® XP herbicide based on local guidance. Read and follow all
label instructions on timing, precautions, and warnings for these herbicides before using this tank mixture.
With fluroxypyr (including “STARANE®” brands)
For improved control of Kochia (2-4” tall) T-SQUARE herbicide may be tank mixed with fluroxypyr containing
herbicides.
2,4-D and MCP herbicides (preferably ester formulations) may be tank mixed with T-SQUARE herbicide plus
fluroxypyr. Consult local guidance and the “TANK MIXTURES” section of this label for additional information.
With AIM® Herbicide
T-SQUARE herbicide can be tank mixed with Aim® herbicide for improved control of weeds in wheat, barley and
triticale.
With STINGER® Herbicide or CURTAIL® Herbicide or CURTAIL® M Herbicide or WIDEMATCH®
Herbicide
T-SQUARE herbicide can be tank mixed with Stinger® herbicide or Curtail® herbicide or Curtail® M herbicide or 
WideMatch® herbicide for improved control of weeds in wheat, barley and triticale. Refer to the Stinger® herbicide
or Curtail® herbicide or Curtail® M herbicide or WideMatch® herbicide labels for information regarding use 
restrictions, labeled crops, rotational cropping intervals, sprayer cleanup, use precautions and other information. The 
most restrictive provisions on either label will apply. DO NOT use the tank mix if any restrictions on the Stinger®
herbicide or Curtail® herbicide or Curtail® M herbicide or WideMatch® herbicide labels conflict with the 
instructions on the FMC herbicide label.
With Other Broadleaf Herbicides
Tank mixes of T-SQUARE herbicide plus metribuzin may result in reduced control of wild garlic.
With HOELON® 3EC Herbicide
T-SQUARE herbicide may be used in combination with Hoelon® 3EC and Buctril® herbicides in accordance with 
the Hoelon® 3EC herbicide label. Apply only to winter wheat. This tank mix may only be used under good soil 
conditions when wild oat is in the 1-4 leaf stage. If conditions are not ideal for the performance of Hoelon® 3EC 
herbicide, wild oat control may be reduced. Be sure to follow all warnings and cautions on the Hoelon® 3EC 
herbicide and Buctril® herbicide labels.
With DISCOVER® NG Herbicide
T-SQUARE herbicide can be tank mixed with Discover® NG herbicide for improved control of weeds in spring 
wheat. Refer to the Discover® NG herbicide label for information regarding use restrictions, labeled crops, 
rotational cropping intervals, sprayer cleanup, use precautions and other information. The most restrictive provisions 
on either label will apply. DO NOT use the tank mix if any restrictions on the Discover® NG herbicide label 
conflict with the instructions on the FMC herbicide label.
With “Everest®” Branded Products
T-SQUARE herbicide can be tank mixed with “Everest®” branded products for improved control of weeds in spring 
wheat. Refer to the “Everest®” herbicide label for information regarding use restrictions, labeled crops, rotational 
cropping intervals, sprayer cleanup, use precautions and other information. The most restrictive provisions on either 
label will apply. DO NOT use the tank mix if any restrictions on the “Everest®” herbicide label conflict with the 
instructions on the FMC herbicide label.

16 
 
With MAVERICK® Herbicide
T-SQUARE herbicide can be tank mixed with Maverick® herbicide for improved control of weeds in wheat. Refer 
to the Maverick® herbicide label for information regarding use restrictions, labeled crops, rotational cropping 
intervals, sprayer cleanup, use precautions and other information. The most restrictive provisions on either label will 
apply. DO NOT use the tank mix if any restrictions on the Maverick® herbicide label conflict with the instructions 
on the FMC herbicide label.
With PUMA® 1EC Herbicide
T-SQUARE herbicide can be tank mixed with Puma® 1EC herbicide for control of some annual grass weeds. This 
tank mix may also include MCP ester, bromoxynil or bromoxynil/MCP, or “Starane ®” branded products for a 
greater spectrum of broadleaf control. Refer to the Puma® 1EC herbicide label for information regarding use 
restrictions, labeled crops, rotational cropping intervals, sprayer cleanup, use precautions and other information. The 
most restrictive provisions on either label will apply. DO NOT use the tank mix if any restrictions on the Puma®
1EC herbicide label conflict with the instructions on the FMC herbicide label.
With other grass control products
Tank mixtures of T-SQUARE herbicide and grass control products may result in poor grass control. FMC advises
that you first consult your state experiment station, university, or extension agent, Agricultural dealer, or FMC 
representative as to the potential for antagonism before using the mixture. If no information is available, limit the
initial use of T-SQUARE herbicide and the grass product to a small area.
With Insecticides
T-SQUARE herbicide may be tank mixed or used sequentially with insecticides (or fungicides) registered for use on
cereal grains. However, under certain conditions (drought stress, or if the crop is in the 2-4 leaf stage), tank mixes or
sequential applications of T-SQUARE herbicide with organophosphate insecticides (such as parathion) may produce
temporary crop yellowing or, in severe cases, crop injury. Test these mixtures in a small area before treating large 
areas.
DO NOT use T-SQUARE herbicide plus products containing 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 T-SQUARE herbicide in fertilizer solution. T-SQUARE herbicide 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 
T-SQUARE herbicide 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 qt -1 qt per 100 gal of spray solution (0.06 -0.25% v/v) 
based on local guidance.
When using high rates of liquid nitrogen fertilizer solution in the spray solution, adding surfactant increases the risk 
of crop injury. Consult your agricultural dealer, consultant, fieldman, or FMC representative for specific instructions 
before adding an adjuvant to these tank mixtures.
If 2,4-D or MCPA is included with T-SQUARE herbicide and fertilizer mixture, ester formulations tend to be more
compatible (See manufacturer’s label). Additional surfactant is not needed when using T-SQUARE herbicide 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 FMC representative for specific 
instructions before using nitrogen fertilizer carrier solutions.
Liquid nitrogen fertilizer solutions that contain sulfur can increase crop response.
DO NOT use low rates of liquid nitrogen fertilizer solution as a substitute for a surfactant.
DO NOT use with liquid fertilizer solutions with a pH less than 3.0.

17 
 
GRAZING
Allow at least 7 days between application and grazing of treated forage. In addition, allow at least 7 days between 
application and feeding of forage from treated areas to livestock. Allow at least 30 days between application and 
feeding of hay from treated areas to livestock. Harvested straw may be used for bedding and/or feed. Allow at least 
45 days between application and harvesting of grain.
CROP ROTATION
Labeled crops may be planted at specified time intervals following application of labeled rates of T-SQUARE 
herbicide.
Use the time intervals listed below to determine the required time interval before planting.
Time Interval Before Planting* (days after treatment with T-SQUARE herbicide)
Crop Days
Barley, Rice, Triticale, Wheat (including durum) and Oat 0
Soybeans 7**
Cotton, Field Corn, and Grain Sorghum 14**
Sugarbeets, Winter Rape, and Canola 60
Any other crop 45
* Refer to individual product labels to determine rotational crop restrictions when tank mixtures are used.
**Where T-SQUARE herbicide is used on light textured soils (such as sands and loamy sands) or on high pH soils
(>7.9), extend time to planting by 7 additional days.
PRODUCT APPLICATION INFORMATION
PRODUCT MEASUREMENT
T-SQUARE herbicide is measured using the T-SQUARE herbicide volumetric measuring cylinder. The degree of
accuracy of this cylinder varies by ± 7.5%. For more precise measurement, use scales calibrated in ounces.
PESTICIDE HANDLING
• Calibrate sprayers only with clean water away from the well site.
• Make scheduled checks of spray equipment.
• Ensure that all operation employees accurately measure pesticides.
• 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, grove, or mixing/loading station.
• Dilute and agitate excess solution and apply at labeled rates or uses.
• Avoid storage of pesticides near well sites.
• When triple-rinsing the pesticide container, be sure to add the rinsate to the spray mix.
MIXING INSTRUCTIONS
1. Fill the tank 1/4 to 1/3 full of water.
2. While agitating, add the required amount of T-SQUARE herbicide.
3. Continue agitation until the T-SQUARE herbicide is fully dispersed, at least 5 minutes.
4.Once the T-SQUARE herbicide is fully dispersed, maintain agitation and continue filling tank with water. T-
SQUARE herbicide must 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 required volume of nonionic surfactant. 
Always add surfactant last. DO NOT use with spray additives that alter the pH of the spray solution below pH 5.0 or 
above pH 9.0, as rapid product degradation can occur. Spray solutions of pH 6.0-8.0 allow for optimum stability of 
T-SQUARE herbicide.
6. If the mixture is not continuously agitated, settling will occur. If settling occurs, thoroughly re-agitate before 
using.

18 
 
7. Apply T-SQUARE herbicide spray mixture within 24 hours of mixing to avoid product degradation.
8. If T-SQUARE herbicide and a tank mix partner are to be applied in multiple loads, pre-slurry the T-SQUARE 
herbicide in clean water prior to adding to the tank. This will prevent the tank mix partner from interfering with the 
dissolution of the T-SQUARE herbicide.
APPLICATION METHOD
Ground Application
For optimum spray distribution and thorough coverage, use flat-fan or low-volume flood nozzles.
For flat-fan nozzles, use a spray volume of at least 5 gal per acre (GPA).
For flood nozzles on 30” spacings, use at least 10 GPA, flood nozzles no larger than TK10 (or the equivalent), and a 
pressure of at least 30 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.
“Raindrop RA” nozzles are not advised for T-SQUARE herbicide applications, as weed control performance may be 
reduced.
Use screens that are 50-mesh or larger.
Aerial Application
Use nozzle types and arrangements that provide optimum spray distribution and maximum coverage at 2 to 5 GPA. 
Use at least 3 GPA in Idaho, Oregon, or Utah.
DO NOT apply T-SQUARE herbicide by air in the state of New York.
See the Spray Drift Management section of this label.
Sprinkler Chemigation with T-SQUARE herbicide and Bronate® Herbicide for 
Postemergence Weed Control in Winter & Spring Wheat & Spring Barley in Idaho
Use 0.4 to 0.5 oz/A T-SQUARE herbicide in combination with 3/4 to 1 1/2 pt/A Bronate® herbicide. Apply to
wheat, barley and triticale after the 3-leaf stage but before the flag leaf is visible. Make only one chemigation 
application of this tank mixture per crop year. For best results, apply to broadleaf weeds up to the 4-leaf stage, or 2 
inches in height or 1 inch in diameter, whichever comes first. Consult T-SQUARE herbicide and Bronate®
herbicide package labels for a list of weeds controlled/suppressed.
SPRINKLER IRRIGATION APPLICATION
Apply this tank mix through sprinkler irrigation systems including center pivot, lateral move, side (wheel) roll, solid 
set or hand move irrigation systems only. DO NOT apply these herbicides through any other type of irrigation 
system.
Crop injury, lack of effectiveness, or illegal pesticide residues in the crop can result from nonuniform distribution
of treated water. If you have questions about calibration, you may contact State Extension Service specialists, 
equipment manufacturers or other experts. DO NOT connect an irrigation system (including greenhouse 
systems) used for T-SQUARE herbicide application to any public water system. A person knowledgeable of the 
chemigation system and responsible for its operation, or under the supervision of the responsible person, shall shut 
the system down and make necessary adjustments if the need arises.
The sprinkler chemigation system must contain a functional check valve, vacuum relief valve, and low pressure 
drain appropriately located on the irrigation pipeline to prevent water source contamination from backflow. The 
pesticide injection pipeline must contain a functional, automatic, quick-closing check valve to prevent the flow of 
fluid back toward the injection pump. The pesticide injection pipeline must also contain a functional, normally 
closed, solenoid- operated valve located on the intake side of the injection pump and connected to the system 
interlock to prevent fluid from being withdrawn from the supply tank when the irrigation system is either 
automatically or manually shut down. The system must contain functional interlocking controls to automatically 
shut off the pesticide injection pump when the water pump motor stops. The irrigation line or water pump must 
include a functional pressure switch which will stop the water pump motor when the water pressure decreases to the

19 
 
point where pesticide distribution is adversely affected. Systems must use a metering pump, including a positive 
displacement injection pump (e.g., diaphragm pump), effectively designed and constructed of materials that are
compatible with pesticides and capable of being fitted with a system interlock. DO NOT apply when wind speed 
favors drift beyond the area intended for treatment.
SPECIFIC REQUIREMENTS FOR APPLICATION THROUGH SPRINKLER IRRIGATION SYSTEMS
1. In center pivot and continuous lateral move systems, T-SQUARE herbicide + Bronate® herbicide needs to be 
applied continuously for the duration of the water application. In solid set systems, application of the tank mix needs 
to be made during the last 30 to 45 minutes of the irrigation set.
2. Set the sprinkler system to deliver approximately 0.5 inch or less of water per acre for best product performance.
3. Fill the supply tank with half of the water amount desired, add the T-SQUARE herbicide and agitate it well. Add 
the Bronate® herbicide and then add the remaining water amount with agitation. Bronate® herbicide requires a 
dilution with at least 4 parts water to 1 part Bronate® herbicide.
4. Agitation is advised in the pesticide supply tank when applying this tank mix.
5. The use of a surfactant is not advised with this tank mix application.
6. Inject the T-SQUARE herbicide + Bronate® herbicide solution at least 8 feet ahead of a right angle turn of 
irrigation pipe to insure adequate mixing. Allow sufficient time for the herbicide mixture to be flushed through the 
lines before turning off irrigation water.
7. Follow both T-SQUARE herbicide and Bronate® herbicide label instructions for spray tank cleanout both before 
and after application. Flush lines with clean water following application.
8. DO NOT apply when wind speed favors drift beyond the area intended for treatment. Avoiding spray drift is the
responsibility of the applicator.
SPRAY EQUIPMENT
For specific application equipment, refer to the manufacturer’s instructions 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 crop canopy is dense. Avoid swath overlapping, and shut off spray booms while 
starting, turning, slowing, or stopping, to avoid injury to the crop.
DO NOT make applications using equipment and/or spray volumes or during weather conditions that might cause 
spray to drift onto nontarget sites. For additional information on spray drift refer to Spray Drift Management section 
of label.
Continuous agitation is required to keep T-SQUARE herbicide in suspension.
Before Spraying T-SQUARE HERBICIDE
The spray equipment must be cleaned before T-SQUARE herbicide is sprayed. Follow the cleanup procedures 
specified on the labels of the previously applied products. If no directions are provided, follow the six steps outlined 
in After Spraying T-SQUARE herbicide.
At the End of the Day
It is advised that during periods when multiple loads of T-SQUARE herbicide are applied, at the end of each day of 
spraying the interior of the tank be rinsed with fresh water and then partially filled, and the boom and hoses flushed. 
This will prevent the buildup of dried pesticide deposits which can accumulate in the application equipment.
After Spraying T-SQUARE HERBICIDE and Before Spraying Crops
Other Than Wheat, Barley, Triticale and Oat
To avoid subsequent injury to desirable crops, thoroughly clean all mixing and spray equipment immediately 
following applications of T-SQUARE herbicide as follows:
1. Drain tank; thoroughly rinse spray tanks, boom, and hoses with clean water. Loosen and physically remove 
any visible deposits.

20 
 
2. Fill the tank with clean water and 1 gal of household ammonia* (contains 3% active) for every 100 gal 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 min. 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 so lution may be applied back to the crop(s) advised 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 an FMC-approved cleaner can be used in the cleanout 
procedure. Carefully read and follow the individual cleaner instructions. Consult your Ag dealer, applicator, or FMC 
representative for a listing of approved cleaners.
Notes:
1.CAUTION: 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 advised prior to performing the above cleanout procedure to facilitate the 
removal of any caked deposits.
3.When T-SQUARE herbicide is tank mixed with other pesticides, all cleanout procedures must be examined and 
the most rigorous procedure must be followed.
4. In addition to this cleanout procedure, all precleanout guidelines on subsequently applied products must be 
followed as per the individual labels.
5.Where routine spraying practices include shared equipment frequently being switched between applications of T-
SQUARE herbicide and applications of other pesticides to T-SQUARE herbicide-sensitive crops during the same 
spray season, it is advised that a sprayer be dedicated to T-SQUARE herbicide to further reduce the chance of crop 
injury.
MANDATORY SPRAY DRIFT MANAGEMENT
Ground Boom Applications:
• Apply with the nozzle height recommended by the manufacturer, but no more than 3 feet above the ground or crop
canopy.
• For applications prior to the emergence of crops and target weeds, applicators are required to use a Coarse or 
coarser droplet size (ASABE S572.1).
• For all other applications, applicators are required to use a Medium or coarser droplet size (ASABE S572.1).
• DO NOT apply when wind speeds exceed 10 miles per hour at the application site.
• DO NOT apply during temperature inversions.
Aerial Applications:
• DO NOT release spray at a height greater than 10 feet above the vegetative canopy, unless a greater application 
height is necessary for pilot safety.
• For applications prior to the emergence of crops and target weeds, applicators are required to use a Coarse or 
coarser droplet size (ASABE S572.1).
• For all other applications, applicators are required to use a Medium or coarser droplet size (ASABE S572.1).
• The boom length must not exceed 65% of the wingspan for airplanes or 75% of the rotor blade diameter for 
helicopters.
• Applicators must use one-half swath displacement upwind at the downwind edge of the field.
• Nozzles must be oriented so the spray is directed toward the back of the aircraft.
• DO NOT apply when wind speeds exceed 10 miles per hour at the application site.
• DO NOT apply during temperature inversions.

21 
 
SPRAY DRIFT MANAGEMENT ADVISORIES
THE APPLICATOR IS RESPONSIBLE FOR AVOIDING OFF-SITE SPRAY DRIFT.
BE AWARE OF NEARBY NON-TARGET SITES AND ENVIRONMENTAL CONDITIONS.
IMPORTANCE OF DROPLET SIZE
An effective way to reduce spray drift is to apply large droplets. Use the largest droplets that provide target pest 
control. While applying larger droplets will reduce spray drift, the potential for drift will be greater if applications 
are made improperly or under unfavorable environmental conditions.
Controlling Droplet Size – Ground Boom
• Volume - Increasing the spray volume so that larger droplets are produced will reduce spray drift. Use the highest 
practical spray volume for the application. If a greater spray volume is needed, consider using a nozzle with a higher 
flow rate.
• Pressure - Use the lowest spray pressure recommended for the nozzle to produce the target spray volume and 
droplet size.
• Spray Nozzle - Use a spray nozzle that is designed for the intended application. Consider using nozzles designed to 
reduce drift.
Controlling Droplet Size – Aircraft
• Adjust Nozzles - Follow nozzle manufacturers recommendations for setting up nozzles.
Generally, to reduce fine droplets, nozzles should be oriented parallel with the airflow in flight.
BOOM HEIGHT – Ground Boom
Use the lowest boom height that is compatible with the spray nozzles that will provide uniform coverage. For 
ground equipment, the boom should remain level with the crop and have minimal bounce.
RELEASE HEIGHT - Aircraft
Higher release heights increase the potential for spray drift. When applying aerially to crops, DO NOT release spray 
at a height greater than 10 ft above the crop canopy, unless a greater application height is necessary for pilot safety.
SHIELDED SPRAYERS
Shielding the boom or individual nozzles can reduce spray drift. Consider using shielded sprayers. Verify that the 
shields are not interfering with the uniform deposition of the spray on the target area.
TEMPERATURE AND HUMIDITY
When making applications in hot and dry conditions, use larger droplets to reduce effects of evaporation.
TEMPERATURE INVERSIONS
Drift potential is high during a temperature inversion. Temperature inversions are characterized by increasing 
temperature with altitude and are common on nights with limited cloud cover and light to no wind. The presence of 
an inversion can be indicated by ground fog or 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. 
Avoid applications during temperature inversions.
WIND
Drift potential generally increases with wind speed. AVOID APPLICATIONS DURING GUSTY WIND 
CONDITIONS.
Applicators need to be familiar with local wind patterns and terrain that could affect spray drift.
Handheld Technology Applications:
• Take precautions to minimize spray drift.

22 
 
DRIFT CONTROL ADDITIVES
Using product compatible drift control additives can reduce drift potential. When a drift control additive is used, 
read and carefully observe cautionary statements and all other information on the additive’s label. If using an 
additive that increases viscosity, ensure that the nozzles and other application equipment will function properly with 
a viscous spray solution. Preferred drift control additives have been certified by the Chemical Producers and 
Distributors Association (CPDA).
IDENTIFICATION INFORMATION FOR PRODUCTS REFERENCED IN THIS LABEL
REGISTERED PRODUCTS REFERENCED IN THIS LABEL FOR TANK MIXTURES 
OR MENTIONED FOR OTHER REASONS
Product Name Active Ingredient(s) EPA Registration Number
Discover® NG Herbicide Clodinafop-propargyl 100-1173
Buctril® Herbicide Bromoxynil 264-437
Bronate® Herbicide Bromoxynil + MCPA 264-438
Hoelon® 3EC Herbicide Diclofop-methyl 264-641
Puma@ 1EC Herbicide Fenoxaprop-p-ethyl 264-666
Bronate Advanced™ Herbicide Bromoxynil + MCPA 264-690
Clarity® Herbicide Dicamba 7969-137
Colt® + Sword® Herbicide
(Starane* + Sword Herbicide, 
Starane* + MCPA Herbicide)
Fluroxypyr + MCPA 34704-1011
Maverick® Herbicide Sulfosulfuron 59639-223
Curtail® Herbicide 2,4-D + Clopyralid 62719-48
Stinger® Herbicide Clopyralid 62719-73
Curtail® M Herbicide Clopyralid + MCPA 62719-86
WideMatch® Herbicide Clopyralid + Fluroxypyr 62719-512
Starane® NXT Herbicide Bromoxynil + Fluroxypyr 62719-557
Starane® Ultra Herbicide Fluroxypyr 62719-577
Starane® Flex Herbicide Florasulam + Fluroxypyr 62719-604
Banvel® Herbicide Dicamba 66330-276
Everest® 2.0 Herbicide Flucarbazone-sodium 66330-391
Banvel® 480 Herbicide Dicamba 66330-421
Everest® 3.0 Herbicide Flucarbazone-sodium 66330-429
Everest® 3.0 AG Flucarbazone-sodium 66330-433

23 
 
STORAGE AND DISPOSAL
Do not contaminate water, food or feed by storage or disposal.
Pesticide Storage: Store product in original container only. Do not contaminate water, other pesticides, fertilizer, 
food or feed in storage.
Pesticide Disposal: Wastes resulting from the use of this product must be disposed of on site or at an approved 
waste disposal facility.
Container Handling: Refer to the Net Contents section of this product’s labeling for the applicable “Nonrefillable
Container” or “Refillable Container” designation.
Nonrefillable Plastic and Metal Containers (Capacity Equal to or Less Than 50 Pounds): Nonrefillable 
container. Do not reuse or refill this container. Triple rinse container (or equivalent) promptly after emptying. Triple 
rinse as follows: Empty the remaining contents into application equipment or a mix tank. Fill the container 1/4 full 
with water and recap. Shake for 10 seconds. Pour rinsate into application equipment or a mix tank or store rinsate 
for later use or disposal. Drain for 10 seconds after the flow begins to drip. Repeat this procedure two more times. 
Then, for Plastic Containers, offer for recycling if available or puncture and dispose of in a sanitary landfill, or by 
incineration. Do not burn, unless allowed by state and local ordinances. For Metal Containers, offer for recycling if 
available or reconditioning if appropriate, or puncture and dispose of in a sanitary landfill, or by other procedures 
approved by state and local authorities.
Nonrefillable Plastic and Metal Containers (Capacity Greater Than 50 Pounds): Nonrefillable container. Do 
not reuse or refill this container. Triple rinse container (or equivalent) promptly after emptying. Triple rinse as 
follows: Empty the remaining contents into application equipment or a mix tank. Fill the container 1/4 full with 
water. Replace and tighten closures. Tip container on its side and roll it back and forth, ensuring at least one 
complete revolution, for 30 seconds. Stand the container on its end and tip it back and forth several times. Turn the 
container over onto its other end and tip it back and forth several times. Empty the rinsate into application 
equipment or a mix tank or store rinsate for later use or disposal. Repeat this procedure two more times. Then, for 
Plastic Containers, offer for recycling if available or puncture and dispose of in a sanitary landfill, or by incineration. 
Do not burn, unless allowed by state and local ordinances. For Metal Containers, offer for recycling if available or 
reconditioning if appropriate, or puncture and dispose of in a sanitary landfill, or by other procedures approved by 
state and local authorities.
Nonrefillable Plastic and Metal Containers, e.g., Intermediate Bulk Containers [IBC] (Size or Shape Too 
Large to be Tipped, Rolled or Turned Upside Down): Nonrefillable container. Do not reuse or refill this 
container. Clean container promptly after emptying the contents from this container into application equipment or 
mix tank and before final disposal using the following pressure rinsing procedure. Insert a lance fitted with a suitable 
tank cleaning nozzle into the container and ensure that the water spray thoroughly covers the top, bottom and all 
sides inside the container. The nozzle manufacturer generally provides instructions for the appropriate spray 
pressure, spray duration and/or spray volume. If the manufacturer’s instructions are not available, pressure rinse the 
container for at least 60 seconds using a minimum pressure of 30 PSI with a minimum rinse volume of 10% of the 
container volume. Drain, pour or pump rinsate into application equipment or rinsate collection system. Repeat this 
pressure rinsing procedure two more times. Then, for Plastic Containers, offer for recycling if available or puncture 
and dispose of in a sanitary landfill, or by incineration. For Metal Containers, offer for recycling if available or 
reconditioning if appropriate, or puncture and dispose of in a sanitary landfill, or by other procedures approved by 
state and local authorities.
Nonrefillable Paper or Plastic Bags, Fiber Sacks including Flexible Intermediate Bulk Containers (FIBC) or 
Fiber Drums With Liners: Nonrefillable container. Do not reuse or refill this container. Completely empty paper 
or plastic bag, fiber sack or drum liner by shaking and tapping sides and bottom to loosen clinging particles. Empty 
residue into application or manufacturing equipment. Then offer for recycling if available or dispose of empty paper 
or plastic bag, fiber sack or fiber drum and liner in a sanitary landfill, or by incineration. Do not burn, unless allowed 
by state and local ordinances.

24 
 
Refillable Fiber Drums With Liners: Refillable container (fiber drum only). Refilling Fiber Drum: Refill this fiber 
drum with T-SQUARE herbicide containing thifensulfuron methyl and tribenuron methyl only. Do not reuse this 
fiber drum for any other purpose. Cleaning before refilling is the responsibility of the refiller. Completely empty 
liner by shaking and tapping sides and bottom to loosen clinging particles. Empty residue into application or 
manufacturing equipment. Disposing of Fiber Drum and/or Liner: Do not reuse this fiber drum for any other purpose 
other than refilling (see preceding). Cleaning the container (liner and/or fiber drum) before final disposal is the 
responsibility of the person disposing of the container. Offer the liner for recycling if available or dispose of liner in 
a sanitary landfill, or by incineration. Do not burn, unless allowed by state and local ordinances. If drum is 
contaminated and cannot be reused, dispose of it in the manner required for its liner. To clean the fiber drum before 
final disposal, completely empty the fiber drum by shaking and tapping sides and bottom to loosen clinging 
particles. Empty residue into application or manufacturing equipment. Then offer the fiber drum for recycling if 
available or dispose of in a sanitary landfill, or by incineration. Do not burn, unless allowed by state and local 
ordinances.
All Other Refillable Containers: Refillable container. Refilling Container: Refill this container with T-SQUARE 
herbicide containing thifensulfuron methyl and tribenuron methyl only. Do not reuse this container for any other 
purpose. Cleaning before refilling is the responsibility of the refiller. Prior to refilling, inspect carefully for damage 
such as cracks, punctures, abrasions, worn out threads and closure devices. If damage is found, do not use the 
container, contact FMC at the number below for instructions. Check for leaks after refilling and before transporting. 
If leaks are found, do not reuse or transport container, contact FMC at the number below for instructions. Disposing 
of Container: Do not reuse this container for any other purpose other than refilling (see preceding). Cleaning the 
container before final disposal is the responsibility of the person disposing of the container. To clean the container 
before final disposal, use the following pressure rinsing procedure. Insert a lance fitted with a suitable tank cleaning 
nozzle into the container and ensure that the water spray thoroughly covers the top, bottom and all sides inside the
container. The nozzle manufacturer generally provides instructions for the appropriate spray pressure, spray duration
and/or spray volume. If the manufacturer’s instructions are not available, pressure rinse the container for at least 60
seconds using a minimum pressure of 30 PSI with a minimum rinse volume of 10% of the container volume. Drain, 
pour or pump rinsate into application equipment or rinsate collection system. Repeat this pressure rinsing procedure 
two more times. Then, for Plastic Containers, offer for recycling if available or puncture and dispose of in a sanitary 
landfill, or by incineration. Do not burn, unless allowed by state and local ordinances. For Metal Containers, offer 
for recycling if available or reconditioning if appropriate, or puncture and dispose of in a sanitary landfill, or by 
other procedures approved by state and local authorities.
Outer Foil Pouches of Water Soluble Packets (WSP): Nonrefillable container. Do not reuse or refill this 
container. Offer for recycling if available or, dispose of the empty outer foil pouch in the trash as long as WSP is 
unbroken. If the outer pouch contacts the formulated product in any way, the pouch must be triple rinsed with clean 
water. Add the rinsate to the spray tank and dispose of the outer pouch as described previously.
Do not transport if this container is damaged or leaking. If the container is damaged, leaking or obsolete, or in the 
event of a major spill, fire or other emergency, contact CHEMTREC (Transportation and Spills) at 1-800-424-9300, 
day or night.
NOTICE TO BUYER: Purchase of this material does not confer any rights under patents of countries outside of 
the United States.
FMC, Ally®, Aim®, Express®, T-Square™ and TotalSol® are trademarks of FMC Corporation or an affiliate.
“Maverick” is a registered trademark of Valent U.S.A. LLC
“Clarity” is a registered trademark of BASF Corporation
“Buctril”, “Bronate”, “Bronate Advanced”, “Hoelon”, and “Puma” are registered trademarks of Bayer Crop Science
“Starane”, “Stinger”, “Curtail”, “Curtail M”, and “Widematch” are registered trademarks of Corteva Agriscience United States
“Colt + Sword” is a registered trademark of UAP Loveland Products Inc.
“Discover” is a registered trademark of Syngenta Crop Protection LLC
“Banvel” and “Everest” are registered trademarks of Arysta LifeScience North America LLC
“Raindrop RA” is a registered trademark of Delavan
D - 4037 042320

25 
 
CONDITIONS OF SALE AND LIMITATION OF WARRANTY AND LIABILITY
Notice: Read the entire Directions for Use and Conditions of Sale and Limitation of Warranty and Liability before 
buying or using this product. If the terms are not acceptable, return the product at once, unopened, and the purchase 
price will be refunded. 
The Directions for Use of this product must be followed carefully. It is impossible to eliminate all risks inherently 
associated with the use of this product. Crop injury, ineffectiveness, or other unintended consequences may result 
because of such factors as manner of use or application, weather or crop conditions beyond the control of FMC or 
Seller. To the extent consistent with applicable law, all such risks shall be assumed by Buyer and User, and, to the 
extent consistent with applicable law, Buyer and User agree to hold FMC and Seller harmless for any claims relating 
to such factors.
Seller warrants that this product conforms to the chemical description on the label and is reasonably fit for
the purposes stated on the Directions for Use when used in accordance with the directions under normal 
conditions of use. TO THE EXTENT CONSISTENT WITH APPLICABLE LAW, FMC MAKES NO 
WARRANTIES OF MERCHANTABILITY OR OF FITNESS FOR A PARTICULAR PURPOSE, NOR 
ANY OTHER EXPRESS OR IMPLIED WARRANTIES WITH RESPECT TO THE SELECTION, 
PURCHASE, OR USE OF THIS PRODUCT. Any warranties, express or implied, having been made are 
inapplicable if this product has been used contrary to label instructions, or under abnormal conditions, or 
under conditions not reasonably foreseeable to (or beyond the control of) Seller or FMC, and, to the extent 
permitted by applicable law, Buyer assumes the risk of any such use.
To the extent consistent with applicable law, FMC or Seller shall not be liable for any incidental, consequential or 
special damages resulting from the use or handling of this product. TO THE EXTENT CONSISTENT WITH 
APPLICABLE LAW, THE EXCLUSIVE REMEDY OF THE USER OR BUYER, AND THE EXCLUSIVE 
LIABILITY OF FMC AND SELLER FOR ANY AND ALL CLAIMS, LOSSES, INJURIES OR DAMAGES 
(INCLUDING CLAIMS BASED ON BREACH OF WARRANTY, CONTRACT, NEGLIGENCE, TORT, STRICT 
LIABILITY OR OTHERWISE) RESULTING FROM THE USE OR HANDLING OF THIS PRODUCT, SHALL 
BE THE RETURN OF THE PURCHASE PRICE OF THE PRODUCT OR, AT THE ELECTION OF FMC OR 
SELLER, THE REPLACEMENT OF THE PRODUCT.
This Condition of Sale and Limitation of Warranty and Liability may not be amended by any oral or written 
agreement.
FMC Corporation, 2929 Walnut Street, Philadelphia, PA 19104
© 2009-2020 FMC Corporation. All rights reserved.