crop-chem-docs/corpus/epa_ppls/100-1162.md

# BOUNDARY 6.5EC HERBICIDE

- EPA Reg No: **100-1162**
- Registrant: SYNGENTA CROP PROTECTION, LLC
- Signal word: Warning
- Active ingredients: Metribuzin (13.8%); S-Metolachlor (58.2%)
- Label accepted: 2023-06-22
- Source PDF: https://www3.epa.gov/pesticides/chem_search/ppls/000100-01162-20230622.pdf

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UNITED STATES ENVIRONMENTAL PROTECTION AGENCY
 WASHINGTON, DC 20460
OFFICE OF CHEMICAL SAFETY
AND POLLUTION PREVENTION

Fast Track Label Acceptable v.20220527
June 22, 2023

Rachel Hardie
Regulatory Manager
Syngenta Crop Protection, LLC
P.O. Box 18300
Greensboro, NC 27419-8300

Subject: Label Amendment – Change sugarcane rotational crop interval from 12 months to
immediate replanting, update trademarks, and correct typographical errors
in Environmental Hazards section
 Supplemental Label – Amend to add table heading “Sugarcane (Only for use in
LA, FL and TX)”
 Product Name: Boundary 6.5EC Herbicide
 EPA Registration Number: 100-1162
 Application Date: March 17, 2023
 Decision Number: 591753

Dear Rachel Hardie:

The amended label and supplemental label referred to above, submitted in connection with
registration under the Federal Insecticide, Fungicide, and Rodenticide Act (FIFRA), as amended,
are acceptable. This approval does not affect any conditions that were previously imposed on this
registration. You continue to be subject to existing conditions on your registration and any
deadlines connected with them.

A stamped copy of your labeling is enclosed for your records. This labeling supersedes all
previously accepted labeling. You must submit one copy of the final printed labeling before you
release the product for shipment with the new labeling. In accordance with 40 CFR 152.130(c),
you may distribute or sell this product under the previously approved labeling for 18 months
from the date of this letter. After 18 months, you may only distribute or sell this product if it
bears this new revised labeling or subsequently approved labeling. “To distribute or sell” is
defined under FIFRA section 2(gg) and its implementing regulation at 40 CFR 152.3.

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 FIFRA 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) lists 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

Page 2 of 2
EPA Reg. No. 100-1162
Decision No. 591753

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.

Your release for shipment of the product 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.

If you have any questions, please contact Derek Corbin at 202-566-2571 or at
Corbin.Derek@epa.gov.

Sincerely,
 Mindy Ondish
 Product Manager 23
 Herbicide Branch
 Registration Division (7505T)
 Office of Pesticide Programs


Enclosures

Sale, use and distribution of this product in Nassau and Suffolk Counties in the
State of New York is prohibited.
S-METOLACHLOR GROUP 15 HERBICIDE
METRIBUZIN GROUP 5 HERBICIDE
Boundary® 6.5EC Herbicide

For control of certain grasses and broadleaf weeds in potatoes, soybeans, and
sugarcane.

Active Ingredients: % by wt.
S-metolachlor*: ................................ ................................ ................................ ................. 58.2%
Metribuzin**:………………………………………………………………………………...13.8%
Other Ingredients***: 28.0%
Total: 100.0%

*CAS No. 87392-12-9
**CAS No. 21087-64-9
***Contains petroleum distillates.
Boundary® 6.5EC Herbicide is formulated as an Emulsifiable Concentrate (EC) containing 5.25
lb of S-metolachlor and 1.25 lb of metribuzin per gallon.

KEEP OUT OF REACH OF CHILDREN

WARNING/AVISO

Si usted no entiende la etiqueta, busque a alguien para que se la explique a usted
en detalle. (If you DO NOT understand the label, find someone to explain it to you
in detail).

See additional precautionary statements and directions for use [on label] [inside
booklet].

EPA Reg. No. 100-1162
EPA Est.
__________
Net Contents[Batch Code: _____] (For nonrefillables only.)

06/22/2023
100-1162

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TABLE OF CONTENTS

1.0 FIRST AID
PRECAUTIONARY STATEMENTS
2.0 PRECAUTIONARY STATEMENTS
2.1 Hazards to Humans and Domestic Animals
2.2 Personal Protective Equipment (PPE)
2.3 User Safety Requirements
2.4 Engineering Controls
2.5 User Safety Recommendations
2.6 Environmental Hazards
2.6.1 Groundwater Advisory
2.6.2 Surface Water Advisory
2.6.3 Non-Target Organism Advisory
2.6.4 Mixing/Loading Instructions
DIRECTIONS FOR USE
3.0 PRODUCT INFORMATION
3.1 Weed Resistance Management
3.1.1 Principles of Herbicide Resistant Weed Management
4.0 APPLICATION DIRECTIONS
4.1 Methods of Application
4.1.1 Band Application
4.2 Application Equipment
4.3 Application Volume and Spray Coverage
4.4 Mixing Directions
4.4.1 Boundary 6.5EC Herbicide Alone
4.4.2 Tank-Mix Precautions
4.4.3 Tank-Mix Compatibility
4.4.4 Boundary 6.5EC Herbicide In Tank Mixtures
4.5 Dry Bulk Granular Fertilizers
4.5.1 Preparation of Herbicide/Fertilizer Mixtures
4.5.2 Pneumatic (Compressed Air) Application
4.5.3 Precautions
4.5.4 Application Instructions For Dry Bulk Fertilizers
4.6 Application through Irrigation Systems (Chemigation)
4.6.1 Chemigation Restrictions
4.6.2 Application Directions For Center Pivot Irrigation Systems
4.6.3 Specific Instructions For Public Water Systems
4.7 Sprayer Cleanout

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5.0 REPLANT AND ROTATIONAL CROP RESTRICTIONS
5.1 Replanting
5.2 Rotational Crop Restrictions
6.0 RESTRICTIONS AND PRECAUTIONS
6.1 Use Restrictions
6.2 Use Precautions
6.3 Spray Drift Management
6.3.1 Spray Drift Advisories
6.3.2 Importance of Droplet Size
6.3.3 Controlling Droplet Size - Ground Boom
6.3.4 Controlling Droplet Size - Aircraft
6.3.5 Boom Height - Ground Boom
6.3.6 Boomless Ground Applications
6.3.7 Release Height - Aircraft
6.3.8 Shielded Sprayers
6.3.9 Temperature and Humidity
6.3.10 Temperature Inversions
6.3.11 Wind
6.3.12 Sensitive Areas
7.0 WEEDS CONTROLLED OR PARTIALLY CONTROLLED BY BOUNDARY 6.5EC
HERBICIDE
7.1 Weeds Controlled by Boundary 6.5EC Herbicide Applied Preemergence
8.0 CROP USE DIRECTIONS
8.1 Potatoes (DO NOT use in California)
8.1.1 Preemergence or Postemergence Applications
8.2 Soybeans (DO NOT use in California)
8.2.1 Preplant Surface, Preplant Incorporated, Preemergence or Postemergence-
Directed Applications
8.2.2 Tank-Mix or Sequential Combinations
8.3 Sugarcane (Only for use in LA, FL and TX)
8.3.1 Preplant Surface, Preemergence or Postemergence Applications
9.0 STORAGE AND DISPOSAL
10.0 CONDITIONS OF SALE AND LIMITATION OF WARRANTY AND LIABILITY

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1.0 FIRST AID
FIRST AID
If in eyes • Hold eye open and rinse slowly and gently with water for 15-20
minutes.
• Remove contact lenses, if present, after the first 5 minutes, then
continue rinsing eye.
• Call a poison control center or doctor for treatment advice.
If swallowed • Immediately call a poison control center or doctor.
• DO NOT induce vomiting unless told to by a poison control center
or doctor.
• DO NOT give any liquid to the person.
• DO NOT give anything by mouth to an unconscious person.
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 inhaled • Move person to fresh air.
• If person is not breathing, call 911 or an ambulance, then give
artificial respiration, preferably mouth-to-mouth, if possible.
• Call a poison control center or a doctor for further treatment advice.
NOTE TO PHYSICIAN
Contains petroleum distillates. Vomiting may cause aspiration pneumonia.
Have the product container or label with you when calling a poison control center or
doctor or going for treatment.
HOTLINE NUMBER
For 24-Hour Medical Emergency Assistance (Human or Animal)
Or Chemical Emergency Assistance (Spill, Leak, Fire or Accident)
Call Syngenta:
1-800-888-8372

PRECAUTIONARY STATEMENTS

2.0 PRECAUTIONARY STATEMENTS
2.1 Hazards to Humans and Domestic Animals
WARNING/AVISO
Causes substantial, but temporary eye injury. Harmful if swallowed or absorbed
through skin. Prolonged or frequently repeated skin contact may cause allergic
reactions in some individuals. DO NOT get in eyes or on clothing. Avoid contact with
skin. Wash thoroughly with soap and water after handling and before eating, drinking,

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chewing gum, using tobacco or using the toilet. Remove and wash contaminated
clothing before reuse.


2.2 Personal Protective Equipment (PPE)
All applicators and other handlers must wear:
• Protective eyewear
• Coveralls over a short-sleeved shirt and short pants
• Chemical-resistant footwear plus socks
• Chemical-resistant gloves made of barrier laminate, butyl rubber ≥ 14 mils, nitrile
rubber ≥ 14 mils or Viton® ≥ 14 mils
• Chemical-resistant headgear for overhead exposure
• Chemical-resistant apron when mixing/loading and cleaning equipment

2.3 User Safety Requirements
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.

2.4 Engineering Controls
When handlers use closed systems, enclosed cabs, or aircraft in a manner that meets
the requirements listed in the Worker Protection Standard (WPS) for agricultural
pesticides (40 CFR 170.607(d-f)), the handler PPE requirements may be reduced or
modified as specified in the WPS.
2.5 User Safety Recommendations
User Safety Recommendations
Users should:
• Remove clothing/PPE immediately if pesticide gets inside. Then wash thoroughly
and put on clean clothing.
• Remove clothing/PPE immediately after handling this product. Wash the outside of
gloves before removing. As soon as possible, wash thoroughly and change into
clean clothing.

2.6 Environmental Hazards
DO NOT apply directly to water, 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
washwater or rinsate.

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2.6.1 Groundwater Advisory
S-metolachlor is known to leach through soil into groundwater under certain conditions
as a result of label use. This chemical may leach into groundwater if used in areas
where soils are permeable, particularly where the water table is shallow.
Metribuzin is a chemical which can travel (seep or leach) through soil and can
contaminate groundwater which may be used as drinking water. Metribuzin has been
found in groundwater as a result of agricultural use. Users are advised not to apply
metribuzin where the water table (groundwater) is close to the surface and where the
soils are very permeable, i.e., well-drained soils such as loamy sands. Your local
agricultural agencies can provide further information on the type of soil in your area and
the location of groundwater.

2.6.2 Surface Water Advisory
S-metolachlor may impact surface water quality due to runoff of rainwater or through
ground spray drift. 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 months 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 S-
metolachlor from runoff water and sediment. Runoff of this product will be reduced by
avoiding applications when rainfall or irrigation is expected to occur within 48 hours.

2.6.3 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 site. Protected
the forage and habitat of non-target organisms by following label directions intended to
minimize spray drift.
Reporting Ecological Incidents
To report ecological incidents, including mortality, injury, or harm to plants and animals,
call 1-800-888-8372.

2.6.4 Mixing/Loading Instructions
Take care when using this product to prevent back-siphoning into wells, spills, or
improper disposal of excess pesticide, spray mixtures, or rinsates.
Use check-valves or anti-siphoning devices on all mixing and/or irrigation equipment.
This product may not be mixed or loaded within 50 ft of perennial or intermittent streams
and rivers, natural or impounded lakes and reservoirs. This product may not be

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mixed/loaded or used within 50 ft of all wells, including abandoned wells, drainage
wells, and sink holes. Operations that involve mixing, loading, rinsing, or washing of
this product into or from pesticide handling or application equipment or containers within
50 ft of any well are prohibited, unless conducted on an impervious pad constructed to
withstand the weight of the heaviest load that may be positioned on or moved across
the pad. Such a pad shall be designed and maintained to contain any product spills or
equipment leaks, container or equipment rinse or wash-water, and rain water that may
fall on the pad. Surface water shall not be allowed to either flow over or from the pad,
which means the pad must be self-contained. The pad shall be sloped to facilitate
material removal. An unroofed pad shall be of sufficient capacity to contain at a
minimum 110% of the capacity of the largest pesticide container or application
equipment on the pad. A pad that is covered by a roof of sufficient size to completely
exclude precipitation from contact with the pad shall have a minimum containment
capacity of 100% of the capacity of the largest pesticide container or application
equipment on the pad. Containment capacities as described above shall be maintained
at all times. The above-specified minimum containment capacities do not apply to
vehicles when delivering pesticide shipments to the mixing/loading site.

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.
Endangered Species Protection Requirements
It is a Federal offense to use any pesticide in a manner that results in an unauthorized
“take” (e.g., kill or otherwise harm) of an endangered species and certain threatened
species, under the Endangered Species Act section 9. When using this product, you
must follow the measures contained in the Endangered Species Protection Bulletin for
the area in which you are applying the product. You must obtain a Bulletin no earlier
than six months before using this product. To obtain Bulletins, consult
http://www.epa.gov/espp/, call 1-844-447-3813, or email ESPP@epa.gov. You must use
the Bulletin valid for the month in which you will apply the product.

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,

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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 (WPS).
DO NOT enter or allow worker entry into treated areas during the restricted-entry
interval (REI) of 12 hours.
Exception: If the product is soil-injected or soil incorporated, the Worker Protection
Standard, under certain circumstances, allows workers to enter the treated area if
there will be no contact with anything that has been treated.
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:
• Protective eyewear
• Coveralls over short-sleeved shirt and short pants
• Chemical-resistant gloves made of barrier laminate, butyl rubber  14 mils,
nitrile rubber  14 mils or Viton ≥ 14 mils
• Chemical-resistant footwear
• Chemical-resistant headgear for overhead exposure

3.0 PRODUCT INFORMATION
Boundary 6.5EC Herbicide is a selective herbicide that can be applied for control of
annual grasses and the broadleaf weeds listed on this label in potatoes, soybeans, and
sugarcane.
Boundary 6.5EC Herbicide may be used for preemergence weed control prior to or after
potato or sugarcane emergence.
Boundary 6.5EC Herbicide may be applied preplant surface, preplant incorporated,
preemergence, and as a sequential application to provide residual control of weeds
listed on this label. Preplant incorporated applications may increase the risk crop injury.
It can also be applied as a postemergence directed application in specific geographical
regions as specified on this label.
3.1 Weed Resistance Management

Boundary 6.5EC Herbicide contains the active ingredients S-metolachlor which inhibits
the formation of very long chain fatty acids (VLCFA, Site of Action Group 15) and
metribuzin which inhibits the photosynthetic pathway of photosystem II (PSII, Site of
Action Group 5). Some naturally-occurring weed populations have been identified as
resistant to Group 5 and 15 herbicides. Selection of resistant biotypes, through
repeated use of these herbicides or lower than labeled use rates in the same field, may
result in weed control failures. A resistant biotype may be present where poor

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performance cannot be attributed to adverse environmental conditions or improper
application methods.

3.1.1 Principles of Herbicide Resistant Weed Management
Scout and know your field
• Know weed species present in the field to be treated through scouting and field
history. An understanding of weed biology is useful in designing a resistance
management strategy. Ensure the weed management program will control all weeds
present.
• Fields should be scouted prior to application to determine species present and growth
stage. Always apply this herbicide at the full labeled rate and correct timing for the
weeds present in the field.

Utilize non-herbicidal practices to add diversity
• Use diversified management tactics such as cover crops, mechanical weed control,
harvest weed seed control, and crop rotation as appropriate.

Use good agronomic practices, start clean and stay clean
• Use good agronomic practices that enhance crop competitiveness.
• Plant into weed-free fields utilizing tillage or an effective burndown herbicide for
control of emerged weeds.
• Sanitize farm equipment to avoid spreading seed or vegetative propagules prior
to leaving fields.

Difficult to control weeds
• Fields with difficult to control weeds should be planted in rotation with crops that
allow the use of herbicides with an alternative mode of action or different management
practices.
• Difficult to control weeds may require sequential applications, such as a broad
spectrum preemergence herbicide followed by one or more postemergence herbicide
applications. Utilize herbicides containing different modes of action effective on the
target weeds in sequential applications.

DO NOT overuse the technology
• DO NOT use more than two applications of this or any other herbicide with the same
mode of action in a single growing season unless mixed with an herbicide with a
different mode of action which provides overlapping spectrum for difficult to control
weeds.

Scout and inspect fields following application
• Prevent an influx of weeds into the field by controlling weeds in field borders.
• Scout fields after application to verify that the treatment was effective.
• 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;

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• A spreading patch of non-controlled plants of a particular weed species;
and
• Surviving plants mixed with controlled individuals of the same species.
• Report non-performance of this product to your Syngenta retailer, Syngenta
representative, or call 1-866-Syngenta (866-796-4368).
• If resistance is suspected ensure weed escapes are controlled using an herbicide with
an effective mode of action and/or use non-chemical means to prevent further seed
production.

Prevent weed escapes before, during, and after harvest
• DO NOT allow weed escapes to produce seed or vegetative structures such as tubers
or stolons which contribute to spread and survival. Consider harvest weed seed
management and control weeds post-harvest to prevent seed production.

Resistant Weeds
Contact your local Syngenta representative, retailer, crop advisor or extension agent to
determine if weeds resistant to modes of action contained in this product are present in
your area. DO NOT assume that each listed weed is being controlled by multiple
modes of action. Premixes are intended to broaden the spectrum of weeds that are
controlled. Some weeds may be controlled by only one of the active ingredients in this
product. If resistant biotypes have been reported, use the full labeled rate of this
product, apply at the labeled timing, and tank-mix with an additional different mode of
action product so there are multiple effective modes of application for each suspected
resistant weed.

4.0 APPLICATION DIRECTIONS
4.1 Methods of Application
Applications with Boundary 6.5EC Herbicide alone or in tank mixtures are permitted by
ground, by air and by chemigation. Preplant surface, preplant incorporated,
preemergence, postemergence and sequential applications are allowed as specified in
Section 8.0. For band-application refer to Section 4.1.1 to calculate the amount of
herbicide needed. Refer to Section 4.6 for details of application by chemigation.

It is the pesticide user’s responsibility to ensure that all products are registered for the
intended use. Read and follow the applicable restrictions and 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.
4.1.1 Band Application
Calculate the amount of herbicide needed for band treatment by the following formula:
Band width in inches X broadcast rate = amount needed
Row width in inches per acre per acre of field

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4.2 Application Equipment
• Spray equipment configuration should be arranged to provide accurate and uniform
coverage of the target area and minimize potential for spray drift.
• To ensure accuracy, calibrate sprayer before each use.
• For information on spray equipment and calibration, consult spray equipment
manufacturers and/or state recommendations.
• All ground, aerial, and chemigation application equipment must be properly
maintained and calibrated using appropriate carriers.
• For aerial applications, use low-drift nozzles at a maximum pressure of 40 psi.
• For ground applications, use sprayers that provide accurate and uniform application.
Calibrate the sprayer before use at the beginning of the season.
• For ground applications with tank mixtures with wettable powder or dry flowable
formulations, screens and strainers should be no finer than 50-mesh.
• For preplant incorporated application, use an implement such as a disk, field
cultivator, rolling cultivator, or similar implement capable of providing uniform 2-inch
incorporation.

4.3 Application Volume and Spray Coverage
• For ground application, apply alone or in tank mixtures in a minimum of 10 gal/A of
spray mixture unless otherwise specified.
• [For certain ground application equipment approved by Syngenta, apply in a
minimum of 2 gallons of spray mixture per acre. Contact your local Syngenta
representative for a list of approved equipment.]
• For aerial application, apply alone or in tank mixtures in a minimum total volume of 2
gal/A of spray mixture.

4.4 Mixing Directions
• Thoroughly clean spray equipment before using this product. Dispose of the
cleaning solution in a responsible manner.
• Prepare no more spray mixture than is needed for the immediate operation.
• Vigorous agitation is necessary to maintain uniformity of the spray mixture. Maintain
agitation throughout the mixing process.
• Keep product container tightly closed when not in use.
• DO NOT let the spray mixture stand overnight in the spray tank.
• Flush the spray equipment thoroughly following each use and apply the rinsate to a
previously treated area.

4.4.1 Boundary 6.5EC Herbicide Alone
1. Add 1/3 of the required amount of water or fluid fertilizer to the spray or mixing tank.
2. With the agitator running, add Boundary 6.5EC Herbicide into the spray tank.
3. Continue agitation while adding the remainder of the water or fluid fertilizer.

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4. Begin application of the spray solution after the Boundary 6.5EC Herbicide has
completely dispersed in the water or fluid fertilizer.
5. Maintain agitation until all the mixture has been applied.

4.4.2 Tank-Mix Precautions
• 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. User must follow the most restrictive
directions for use and precautionary statements of each product in the tank mixture.
• If not known, check compatibility with other pesticides and/or liquid fertilizers before
mixing in spray tank using a jar test, as described in Section 4.4.3.
• NOTE: Nitrogen solutions or complete fluid fertilizers may replace all or part of the
water in the spray. Because liquid fertilizers vary, even within the same analysis,
always check compatibility with pesticide(s) before use. Incompatibility of tank
mixtures is more common with suspensions of fertilizer and pesticides.

4.4.3 Tank-Mix Compatibility
• Conduct a jar test using a 1 pt to 1 qt container with lid by adding water or other
intended carrier such a liquid fertilizer to the jar.
• Next, add the appropriate amount of pesticides(s) or tank-mix partner(s) in their
relative proportions based on recommended label rates. Add tank-mix components
separately in the order described below. After each addition, shake or stir gently to
thoroughly mix.
1. Products packaged in water-soluble packaging
2. Wettable powders
3. Wettable granules (dry flowables)
4. Liquid flowables
5. Liquids such as Boundary 6.5EC Herbicide
6. Emulsiable concentrates.

• After all ingredients have been added, put the lid on the jar, tighten and invert the jar 10
times to mix.
• After mixing, let the mixture stand 15–30 minutes and then examine for signs of
incompatibility such as obvious separation, large flakes, precipitates, gels or heavy oily film
on the jar.
• If the mixture remains mixed or can be remixed readily, it is physically compatible
and can be used.
• If the mixture is incompatible, repeat the test using a compatibility agent at the
recommended rate. Or, if applicable, slurry dry formulations in water before adding
to the jar. If incompatibility is still observed after following these procedures, DO
NOT use the mixture.
• After compatibility testing is complete, dispose of any pesticide wastes in
accordance with the storage and disposal section, Section 9.0, of this label.

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4.4.4 Boundary 6.5EC Herbicide In Tank Mixtures
1. Add 1/3 of the required amount of water or fluid fertilizer to the mix tank.
2. Start the agitator running before adding any tank mix partners.
3. Check the tank mix partner label for any specific instructions pertaining to the tank-
mix partner.
4. Add all products in water-soluble packaging to the tank first and mix with plain water
before any other tank mix partner, including Boundary 6.5EC Herbicide. Allow the
water-soluble packaging to completely dissolve and the product(s) to completely
disperse before adding any other tank mix partner to the tank. Water-soluble
packets will not properly dissolve in most spray solutions that contain fluid fertilizers.
5. In general, tank mix partners should be added in this order:
1. Products packaged in water-soluble packaging
2. Wettable powders
3. Wettable granules (dry flowables)
4. Liquid flowables
5. Liquids such as Boundary 6.5EC Herbicide
6. Emulsiable concentrates.
6. Always allow each tank mix partner to become fully dispersed before adding the next
product.
7. Provide sufficient agitation while adding the remainder of the water.
8. Maintain agitation until all the mixture has been applied.

4.5 Dry Bulk Granular Fertilizers
Many dry bulk granular fertilizers may be impregnated or coated with Boundary 6.5EC
Herbicide alone or selected Boundary 6.5EC Herbicide tank mixtures which are registered to
control weeds in crops on the Boundary 6.5EC Herbicide label and are not prohibited from use
on dry bulk granular fertilizers.
When applying Boundary 6.5EC Herbicide or Boundary 6.5EC Herbicide mixtures with
dry bulk granular fertilizers, follow all directions for use, restrictions and precautions on
the respective product labels, regarding target crops, rates per acre, soil texture,
application methods (including timing of application), and rotational crops.
Complying with all individual state regulations relating to dry bulk granular fertilizer
blending, registration, labeling, and application is the responsibility of the individual
and/or company selling the herbicide/fertilizer mixture.
4.5.1 Preparation of Herbicide/Fertilizer Mixtures
• Use any closed drum, belt, ribbon, or other commonly used dry bulk fertilizer
blender.
• Place the nozzles used to spray Boundary 6.5EC Herbicide and Boundary 6.5EC
Herbicide mixtures onto the fertilizer in such a way as to provide uniform spray
coverage.

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• Use care to aim the spray directly onto the fertilizer only and to avoid spraying the
walls of the blender.
• If the herbicide/fertilizer mixture is too wet, add a highly absorptive material such as
Agsorb® FG or Celatom® MP-79®, or similar granular clay or diatomaceous earth
materials, to obtain a dry, free-flowing mixture.
• Add absorptive materials only after the herbicide has been thoroughly blended into
the fertilizer mixture.
• Best application results will be obtained by using a granule of 6/30 particle size or of
a size similar to that of the fertilizer materials being used.
• Generally, less than 2% by weight of absorptive material will be needed.
• Avoid using more than 5% absorptive material by weight.
• Calculate amounts of Boundary 6.5EC Herbicide to be used by the following
formula:

2,000
X
pt of Boundary 6.5EC
Herbicide =
pt of Boundary 6.5EC
Herbicide
lbs. of fertilizer per acre per acre per ton of fertilizer

4.5.2 Pneumatic (Compressed Air) Application
• High humidity, high urea concentrations, low fertilizer use rates, and dusty fertilizer
may cause fertilizer mixture to build up or plug the distributor head, air tubes, or
nozzle deflector plates.
• To minimize buildup, premix Boundary 6.5EC Herbicide with Exxon Aromatic 200 at
a rate of 2.0-2.5 pt/gal of Boundary 6.5EC Herbicide.
• Aromatic 200 is a noncombustible/nonflammable petroleum product.
• Aromatic 200 may be used in either a fertilizer blender or through direct injection
systems.
• Do not use drying agents when using Aromatic 200.

15

4.5.3 Precautions
• Use mixtures of Boundary 6.5EC Herbicide and Aromatic 200 on dry fertilizer only.
• Poor results or crop injury may result if these mixtures are used in water or liquid
fertilizer solutions for spraying applications.
o When impregnating Boundary 6.5EC Herbicide in a blender before application, a
drier mixture can be attained by substituting a drying agent for Aromatic 200.
o The use of Agsorb® FG or another drying agent of 6/30 particle size is
recommended.
• When possible, avoid drying agents when using on-board impregnation equipment.

TO AVOID POTENTIAL FOR EXPLOSION:
o DO NOT impregnate Boundary 6.5EC Herbicide on ammonium nitrate,
potassium nitrate, or sodium nitrate, either alone or in blends with other
fertilizers.
o DO NOT combine Boundary 6.5EC Herbicide with a single superphosphate (1-
20-0) or triple superphosphate (0-46-0).
o DO NOT use Boundary 6.5EC Herbicide on straight limestone, since absorption
will not be achieved. Fertilizer blends containing limestone can be impregnated.

4.5.4 Application Instructions For Dry Bulk Fertilizers
1. Apply 200-700 lb of the herbicide/fertilizer mixture per acre.
2. For best results, apply the mixture uniformly to the soil with properly calibrated
equipment immediately after blending.
3. Uniform application of the herbicide/fertilizer mixture is essential in order to prevent
possible crop injury to subsequent rotational crops.
4. Non-uniform application may also result in unsatisfactory weed control. To obtain
satisfactory weed control in areas where conventional tillage is practiced, shallowly
incorporate the mixture into the soil.
5. On fine- or medium-textured soils in areas where soil incorporation is not planned,
i.e., reduced tillage situations or in some conventional till situations, make
applications approximately 30 days before planting to allow moisture to move the
herbicide/fertilizer mixture into the soil.
6. On coarse-textured soils, make applications approximately 14 days prior to planting.

Precaution: To help avoid rotational crop injury, make applications as early as
possible, since Boundary 6.5EC Herbicide impregnated onto dry bulk fertilizers can be
expected to last longer in the soil than Boundary 6.5EC Herbicide applied as a spray in
water or fluid fertilizer.

16

4.6 Application through Irrigation Systems (Chemigation)
4.6.1 Chemigation Restrictions
• ONLY APPLY THIS PRODUCT THROUGH CENTER-PIVOT IRRIGATION
SYSTEMS.
• DO NOT apply this product through any other type of irrigation system.
• DO NOT apply when wind speed favors drift beyond the area intended for treatment.
• Crop injury, lack of effectiveness, or illegal pesticide residues in the crop can result
from non-uniform distribution of treated water.
• If you have questions about calibration, you should contact State Extension
specialists, equipment manufacturers, or other experts.
• DO NOT connect an irrigation system (including greenhouse systems) used for
pesticide application to a public water system, unless pesticide label-prescribed
safety devices for public water systems are in place.
• 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 when needed.

4.6.2 Application Directions For Center Pivot Irrigation Systems
• Apply this product only through a center pivot irrigation system.
• Prepare a mixture with a minimum of 1 part water to 1 part herbicide(s) and inject
this mixture into the center pivot system. Injecting a larger volume of a more dilute mixture
per hour will usually provide more accurate calibration of metering equipment.
• Maintain sufficient agitation to keep the herbicide in suspension.
• Meter into irrigation water during entire period of water application.
• Apply in ½-1 inch of water. Use the lower water volume (½ inch) on coarse-textured
soils and the higher volume (1 inch) on fine-textured soils. More than 1 inch of water
at application may reduce weed control by moving the herbicide below the effective
zone in the soil.

Precaution for center pivot applications: Where sprinkler distribution patterns DO
NOT overlap sufficiently, unacceptable weed control may result. Where sprinkler
distribution patterns overlap excessively, crop injury may result.

4.6.3 Specific Instructions For Public Water Systems
• Public water system means a system for the provision to the public of piped water
for human consumption if such system has at least 15 service connections or
regularly serves an average of at least 25 individuals daily at least 60 days out of the
year.
• Chemigation systems connected to public water systems must contain a functional,
reduced-pressure zone (RPZ), back-flow preventer or the functional equivalent in the
water supply line upstream from the point of pesticide introduction. As an option to
the RPZ, the water from the public water system should be discharged into a
reservoir tank prior to pesticide introduction. There shall be a complete physical

17

break (air gap) between the outlet end of the fill pipe and the top or overflow rim of
the reservoir tank of at least twice the inside diameter of the fill pipe.
• 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 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, or in cases where there
is no water pump, when the water pressure decreases to the point where pesticide
distribution is adversely affected.
• Systems must use a metering pump, such as a positive 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.

4.7 Sprayer Cleanout
Because some non-labeled crops are sensitive to low rates of Boundary 6.5EC Herbicide,
special attention must be given to cleaning equipment before spraying a crop other than those
registered for use and on this label. Mix only as much spray solution as needed. Immediately
after spraying, clean equipment thoroughly using the following procedure:
1. Flush tank, hoses, boom, and nozzles with clean water.
2. Prepare a cleaning solution of one gal. of household ammonia per 50 gal. of water.
Many commercial spray tank cleaners may be used as well. Consult your Syngenta
representative for a partial listing of approved tank cleaners and more information about
proper tank cleaning procedures. DO NOT use chlorine-based cleaners such as
Clorox®.
3. When available, use a pressure washer to clean the inside of the spray tank
with this solution. Take care to wash all parts of the tank, including the inside
top surface. Completely fill the sprayer with the cleaning solution to ensure
contact of the cleaning solution with all internal surfaces of the tank and
plumbing. Start agitation in the sprayer and thoroughly re-circulate the cleaning
solution for at least 15 minutes. All visible deposits must be removed from the
spraying system.
4. Flush hoses, spray lines, and nozzles for at least one minute with the cleaning
solution.
5. Dispose of rinsate from steps 1-4 in a responsible manner (see Section 10.0).
6. Repeat steps 2-5.
7. Remove nozzles, screens, and strainers and clean separately in the ammonia
cleaning solution after completing the above procedures.
8. Rinse the complete spraying system with clean water.

18

5.0 REPLANT AND ROTATIONAL CROP RESTRICTIONS
5.1 Replanting
If replanting is necessary in fields previously treated with Boundary 6.5EC Herbicide,
the field may be replanted to soybeans, sugarcane or potatoes. Before replanting, refer
to the specific crop use sections for use directions, precautions and restrictions.

5.2 Rotational Crop Restrictions
The following crops may be planted at the specified interval following application of
Boundary 6.5EC Herbicide.
Crop Plant-Back Interval
Corn 4 months
Alfalfa
Winter barley
Winter wheat
4 ½ months

Peas
Rice
Spring barley
Spring wheat
8 months
Asparagus
Cotton
Forage grasses
Lentils
Sainfoin
Tomatoes
Other crops not listed (except root crops)
12 months
Onions
Sugar beets and other root crops 18 months
ROTATIONAL CROPS USE RESTRICTIONS
1. Cover crops for soil building or erosion control may be planted any time, but DO NOT graze or
harvest for food or feed. Stand reductions may occur in some areas.
2. Crop rotation instructions DO NOT include restrictions for the tank mix partner. Refer to the label
of the other product for additional restrictions.
3. Refer to the specific crop use sections for additional crop rotation precautions.
4. DO NOT rotate rice after any application to a primary crop at greater than 1.0 lb ai/A of metribuzin
per season.

6.0 RESTRICTIONS AND PRECAUTIONS
6.1 Use Restrictions
• DO NOT sell, use or distribute this product in Nassau and Suffolk Counties in the
State of New York.
• DO NOT use this product in the State of California.
• DO NOT apply this product within 50 ft of perennial or intermittent streams and
rivers.

19

• DO NOT apply this product through any type of irrigation system except center pivot
systems.
• Apply only by ground equipment when used for burndown of existing vegetation in
conservation tillage systems.
• For use in sugarcane in Texas, Louisiana and Florida only.
• This pesticide may only be applied when the potential for drift to adjacent sensitive
areas (e.g., residential areas, bodies of water, non-target plants) is minimal (i.e.,
when the wind is blowing away from the sensitive area).
• Low-pressure and high-volume hand wand equipment is prohibited.

6.2 Use Precautions
• DO NOT apply under conditions which favor runoff or wind erosion of soil containing
this product to non-target areas.
• To prevent off-site movement due to runoff or wind erosion:
o Avoid treating soils that are subject to wind erosion (usually high silt and/or
fine to very fine sand fractions and low organic matter content) when
conditions are favorable for wind erosion. Under these conditions, settle the
soil surface first by rainfall or irrigation.
o 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.
o DO NOT apply to impervious substrates, such as paved or highly compacted
surfaces.
o DO NOT use tailwater from the first flood or furrow irrigation of treated fields
to treat non-target crops, unless at least 1/2 inch of rainfall has occurred
between application and the first irrigation.
o Avoid applying Boundary 6.5EC Herbicide if prevailing conditions may be
expected to result in off-site movement.
• Activation: A small amount of rainfall or irrigation is required to activate Boundary
6.5EC Herbicide following application. In areas of low rainfall, follow a preemergence
application with light irrigation of ¼ to ½ inch of water. DO NOT apply heavy irrigation
immediately after application. As with many surface-applied herbicides, weed control and
crop tolerance may vary with rainfall and/or soil texture.
• Avoid aerial application under conditions where uniform coverage cannot be
obtained or where excessive spray drift may occur.

6.3 Spray Drift Management
As with all crop protection products, it is important to avoid off-target movement onto adjacent
land or crops, as even small amounts may injure sensitive plants. To reduce spray drift, the
following spray drift management requirements must be followed.

20

MANDATORY SPRAY DRIFT MANAGEMENT
Ground Boom Applications
• User must only apply with the release height recommended by the manufacturer, but
no more than 4 feet above the ground or crop canopy.
• Applicators are required to select the nozzles and pressure that deliver medium or
coarser droplet size (ASABE S572).
• DO NOT apply when wind speeds exceed 15 miles per hour at the application site.
• DO NOT apply during temperature inversions.
Boomless Ground Applications
• Applicators are required to select the nozzle and pressure that deliver medium or
coarser droplet size (ASABE S572.3) for all applications.
• DO NOT apply when wind speeds exceed 15 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 ft above the vegetative canopy,
unless a greater application height is necessary for pilot safety.
• Applicators are required to select the nozzle and pressure that deliver medium or
coarser droplets (ASABE S641).
• The boom length must not exceed 65% of the wingspan for airplanes or 75% of the
rotor blade diameter for helicopters.
• Applicators must use 1/2 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.
• To assure that spray will not adversely affect adjacent sensitive nontarget plants,
apply Boundary 6.5EC Herbicide by aircraft at a minimum upwind distance of 400 ft.
from sensitive plants.


6.3.1 Spray Drift Advisories
THE APPLICATOR IS RESPONSIBLE FOR AVOIDING OFF-SITE SPRAY DRIFT. BE
AWARE OF NEARBY NON-TARGET SITES AND ENVIRONMENTAL CONDITIONS.
6.3.2 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.

21

6.3.3 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.
6.3.4 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.
6.3.5 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.
6.3.6 Boomless Ground Applications
• Setting nozzles at the lowest effective height will help reduce the potential for spray
drift.
6.3.7 Release Height - Aircraft
• Higher release heights increase the potential for spray drift.
• Making applications at the lowest height that is safe reduces exposure of droplets to
evaporation and wind.
6.3.8 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.

6.3.9 Temperature and Humidity
• When making applications in hot and dry conditions, use larger droplets to reduce
effects of evaporation.

22

6.3.10 Temperature Inversions
• Drift potential is high during a temperature inversion.
• Temperature inversions restrict vertical air mixing, which causes small suspend
droplets to remain 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.
• 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.
6.3.11 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.
6.3.12 Sensitive Areas
• Only apply Boundary 6.5EC Herbicide when the potential for drift to adjacent
sensitive areas (e.g., residential areas, bodies of water, known habitat for threatened
or endangered species, non-target crops) is minimal (e.g., when wind blowing away
from the sensitive areas).
• To assure that spray will not adversely affect adjacent sensitive nontarget plants,
apply Boundary 6.5EC Herbicide by aircraft at a minimum upwind distance of 400 ft.
from sensitive plants.

7.0 WEEDS CONTROLLED OR PARTIALLY CONTROLLED
BY BOUNDARY 6.5EC HERBICIDE
PARTIAL WEED CONTROL
Where reference is made to weeds partially controlled, partial control can either mean
erratic control from good to poor, or consistent control at a level below that generally
considered acceptable for commercial weed control. Control of these weeds can be
erratic, due partially to variable weather conditions.

23

7.1 Weeds Controlled by Boundary 6.5EC Herbicide Applied
Preemergence

Common Name Scientific Name
Weed
Type
Control (C) or Partial
Control (PC)*
Barnyardgrass Echinochloa crus-galli Grass C
Bluegrass, annual Poa annua Grass C
Crabgrass, large Digitaria ischaemum Grass C
Crabgrass, smooth Digitaria sanguinalis Grass C
Crowfootgrass Dactyloctenium aegyptium Grass C
Cupgrass, Prairie Eriochloa contracta Grass C
Cupgrass, Southwestern Eriochloa acuminata Grass C
Cupgrass, woolly Eriochloa villosa Grass PC
Foxtail, bristly Setaria verticillata Grass C
Foxtail, giant Setaria faberi Grass C
Foxtail, green Setaria viridis Grass C
Foxtail, millet Setaria italica Grass C
Foxtail, yellow Setaria pumila Grass C
Junglerice Echinochloa colona Grass C
Goosegrass Eleusine indica Grass C
Johnsongrass (seedling) Sorghum halepense Grass PC
Millet, wild-proso Panicum miliaceum Grass PC
Panicum, fall Panicum dichotomiflorum Grass C
Panicum, Texas Panicum texanum Grass PC
Rice, red Oryza sativa Grass C
Ryegrass, Italian Lolium multiflorum Grass C
Sandbur, field Cenchrus spinifex Grass PC
Sandbur, Southern Cenchrus echinatus Grass PC
Shattercane Sorghum bicolor Grass PC
Signalgrass, broadleaf Urochloa platyphylla Grass C
Sorghum (volunteer) Sorghum bicolor Grass PC
Witchgrass Panicum capillare Grass C

Amaranth, Palmer Amaranthus palmeri Broadleaf C
Amaranth, Powell Amaranthus powellii Broadleaf C
Anoda, spurred Anoda cristata Broadleaf C
Beggarweed, Florida Desmodium tortuosum Broadleaf PC
Carpetweed Mollugo verticillata Broadleaf C
Chickweed, common Stellaria media Broadleaf C
Cocklebur Xanthium strumarium Broadleaf PC
Copperleaf, hophornbeam Acalypha ostryifolia Broadleaf C

24

Common Name Scientific Name
Weed
Type
Control (C) or Partial
Control (PC)*
Eclipta Eclipta prostrata Broadleaf PC
Galinsoga, hairy Galinsoga quadriradiata Broadleaf C
Galinsoga, smallflower Galinsoga parviflora Broadleaf C
Henbit Lamium amplexicaule Broadleaf C
Jimsonweed Datura stramonium Broadleaf C
Knotweed spp. Datura stramonium Broadleaf C
Kochia Polygonum sp. Broadleaf C
Ladysthumb Persicaria maculosa Broadleaf C
Lambsquarters, common Chenopodium album Broadleaf C
Lettuce, prickly Lactuca serriola Broadleaf C
Mallow, Venice Hibiscus trionum Broadleaf C
Mustard spp. Broadleaf C
Nightshade, Eastern black Solanum ptychanthum Broadleaf C
Nightshade, hairy Solanum physalifolium Broadleaf PC
Pennycress, field Thlaspi arvense Broadleaf C
Pepperweed, Virginia Lepidium virginicum Broadleaf C
Pigweed, prostrate Amaranthus blitoides Broadleaf C
Pigweed, redroot Amaranthus retroflexus Broadleaf C
Pigweed, smooth Amaranthus hybridus Broadleaf C
Pigweed, tumble Amaranthus albus Broadleaf C
Purslane, common Portulaca oleracea Broadleaf C
Pusley, Florida Richardia scabra Broadleaf C
Ragweed, common Ambrosia artemisiifolia Broadleaf PC
Redweed Melochia corchorifolia Broadleaf C
Sesbania, hemp Sesbania herbacea Broadleaf C
Shepherd’s-Purse Capsella bursa-pastoris Broadleaf C
Sicklepod Senna obtusifolia Broadleaf C
Sida, prickly Sida spinosa Broadleaf C
Smartweed, Pennsylvania Persicaria pensylvanica Broadleaf C
Spiderwort, tropical Commelina benghalensis Broadleaf C
Spurge, spotted Euphorbia maculata Broadleaf C
Starbur, bristly Acanthospermum hispidum Broadleaf C
Thistle, Russian Salsola tragus Broadleaf C
Velvetleaf Abutilon theophrasti Broadleaf PC
Waterhemp Amaranthus tuberculatus Broadleaf C

Nutsedge, yellow Cyperus esculentus Sedge C
*except triazine resistant biotypes other than Galinsoga spp., black nightshade, pigweed spp.,
and waterhemp spp.

Procedures that might improve control of weeds listed above:

25

Common Name Scientific Name
Weed
Type
Control (C) or Partial
Control (PC)*
• Thoroughly till soil to destroy germinating and emerged weeds.
• If Boundary 6.5EC Herbicide is to be used preemergence, apply at planting or immediately after
planting.
• If available, sprinkler irrigate within 2 days after application. Apply ½-1 inch of water. Use lower
water volume (½ inch) on coarse textured soils and higher volume (1 inch) on fine textured soils.
• If irrigation is not possible and rain does not occur within 2 days after planting and application,
weed control may be decreased. Under these conditions, make a uniform, shallow cultivation as
soon as weeds emerge or apply an appropriately labeled herbicide to control emerged weeds.

8.0 CROP USE DIRECTIONS
SOIL TEXTURES
Where rates are based on coarse-, medium-, or fine-textured soils, it is understood that soil
textural classes are generally categorized as follows:
Coarse Medium Fine
Loamy sand
Sand
Sandy loam
Loam
Silt
Silt loam
Sandy clay
Sandy clay loam
Clay
Clay loam
Silty clay
Silty clay loam

• Silty clay loam soils are transitional soils and may be classified as medium-textured soils in some
regions of the U.S. When using Boundary 6.5EC Herbicide, treat this soil as “fine-textured”.

8.1 Potatoes (DO NOT use in California)
8.1.1 Preemergence or Postemergence Applications
Crops (including cultivars, varieties, and/or hybrid of these)
Potato
Application
Timing Rate Use Directions
 Preemergence For all applications use the rate
for the specific soil texture and
organic matter (OM) as follows:

Coarse Soil with 0.5-3% OM:
1.5-2.0 pt/A
[0.98 – 1.31 lb./A S-metolachlor
and 0.23 – 0.31 lb./A
metribuzin]
Coarse Soils with >3% OM:
2.0-2.4 pt/A
[1.31 – 1.58 lb./A S-metolachlor
and 0.31 – 0.38 lb./A
metribuzin]
Apply after planting but before crop
emergence or apply after drag-off if this
operation is part of the usual cultural practice.

Dry weather following Boundary 6.5EC
application may reduce effectiveness.

DO NOT apply Boundary 6.5EC Herbicide as
a preplant incorporated application or crop
injury may occur.

26


Medium Soils with 0.5-3%
OM:
2.4-2.75 pt/A
[1.58 – 1.80 lb./A S-metolachlor
and 0.38 – 0.43 lb./A
metribuzin]
Medium Soils with >3% OM:
2.75-2.9 pt/A
[1.80 – 1.90 lb./A S-metolachlor
and 0.43 – 0.45 lb./A
metribuzin]
Fine Soils with 0.5-3% OM:
2.4-2.75 pt/A
[1.58 – 1.80 lb./A S-metolachlor
and 0.38 – 0.43 lb./A
metribuzin]
Fine Soils with >3% OM:
2.75-2.9 pt/A
[1.80 – 1.90 lb./A S-metolachlor
and 0.43 – 0.45 lb./A
metribuzin]

Postemergence For all applications use the rate
for the specific soil texture and
organic matter (OM) as follows:

Coarse Soil with ≥0.5% OM:
1.5 pt/A
[0.98 lb./A S-metolachlor and
0.23 lb./A metribuzin]


Medium Soils with ≥0.5% OM:
1.5-2.2 pt/A
[0.98 – 1.44 lb./A S-metolachlor
and 0.23 – 0.34 lb./A
metribuzin]

Fine Soils with ≥0.5% OM:
1.5-2.2 pt/A
[0.98 – 1.44 lb./A S-metolachlor
and 0.23 – 0.34 lb./A
metribuzin]


Apply postemergence only in center pivot
irrigation water, after drag-off if that is a usual
cultural practice.

See Section 4.6 for instructions on center
pivot irrigation application.


For Weed Control:
• Refer to Section 7.1 for list of weeds controlled or partially controlled.
• Where a rate range is given use the lower end of the rate range on the more coarse -textured soils
listed within that group and/or where weed pressures are known to be light, use the high end of the
rate range on the more fine-textured soils listed within that group and/or where the weeds
pressures are known to be heavy.

27

Tank Mix Application Options:
• For preemergence applications, Boundary 6.5EC Herbicide may be tank mixed with other pesticide
products registered for preemergence applications in potatoes.
• For postemergence applications (center pivot irrigation applications only), i.e. where potato vines
are exposed, there may be increased risk of crop injury from certain product mixtures. At this
application timing, tank mix Boundary 6.5EC Herbicide only with pesticide products which allow
tank mixing and postemergence chemigation on their product label.
• Follow the directions for use, observe the stated precautions, and abide by the limitations and
restrictions on the most restrictive of the product labels.
 Resistance Management:
• Refer to Section 3.1.
Precautions:
• For preemergence application on soils that classify as a “sand” texture – DO NOT use more than
1.5 pt/A of Boundary 6.5EC Herbicide, or more than 0.5 lb ai/A of metribuzin in total, or crop injury
may occur.
• For postemergence application, crop injury may occur on soils that classify as a “sand” texture and
have less than 0.5% organic matter.
• Boundary 6.5EC is not recommended for use on muck or peat soil.
• DO NOT apply Boundary 6.5EC Herbicide postemergence if the weather in the next 3 days is
predicted to be cool, wet or cloudy, as crop injury may occur.
• To avoid crop injury, make postemergence applications only on russetted or white skinned
varieties of potatoes that are not early maturing. Avoid postemergence applications on Atlantic,
Bellchip, Centennial, Chipbelle, Shepody and Superior varieties. Preemergence applications on
these varieties may cause crop injury under adverse weather conditions, on c oarse soils, under
high soil pH and with higher use rates.
• Potato varieties may vary in their response to a given herbicide application. When using Boundary
6.5EC Herbicide for the first time on a particular variety, always determine crop tolerance before
using on a field-scale.
• Certain cereal varieties are sensitive to metribuzin and should not be planted during the next
growing season unless the following cultural practices occur:
o Potato vines left in the row as a result of harvest must be uniformly distributed over the soil
surface prior to plowing
o Plow with a moldboard plow to a depth sufficient to mix the upper 8 inches of soil.
USE RESTRICTIONS
1) Refer to Section 6.1 for additional product use restrictions.
2) Maximum Single Application Rate:
• 2.75 pt/A (0.5-3% OM) = 1.80 lb./A S-metolachlor; 0.43 lb./A metribuzin
• 2.9 pt/A (>3% OM) = 1.90 lb./A S-metolachlor; 0.45 lb./A metribuzin
3) Maximum Annual Rate: 4.95 pt/A/year (0.5-3% OM); 5.1 pt/A/year (>3% OM)
a. DO NOT exceed 3.43 lb ai/A/year of S-metolachlor-containing products.
• 4.95 pt/A/year = 3.25 lb/A/year of S-metolachlor; 0.77 lb./A/year of metribuzin
• 5.1 pt/A/year = 3.34 lb/A/year of S-metolachlor; 0.80 lb/A/year of metribuzin
b. DO NOT exceed 1.0 lb ai/A/year of metribuzin-containing products.
4) DO NOT make more than 2 applications per year.
5) DO NOT apply after June 30 in Idaho, Oregon, or Washington if the treated land will b e planted to
a crop other than potatoes in the fall.
6) DO NOT apply Boundary 6.5EC Herbicide to sweet potatoes or yams.
7) Pre-harvest Interval (PHI): 60 days

28


8.2 Soybeans (DO NOT use in California)
8.2.1 Preplant Surface, Preplant Incorporated, Preemergence or
Postemergence-Directed Applications
Crops (including cultivars, varieties, and/or hybrids of these)
Soybeans
Application Timing Rate
(pt/A) Use Directions
Conventional Tillage
Systems


Preplant Surface

Preplant Incorporated

Preemergence


For all applications use the rate
for the specific soil texture and
organic matter (OM) as follows:

Coarse Soils with 0.5-3% OM:
1.2-1.5 pt/A
[0.79 – 0.98 lb./A S-metolachlor
and 0.19 – 0.23 lb./A
metribuzin]

Coarse Soils with >3% OM:
1.5-1.8 pt/A
[0.98 – 1.18 lb./A S-metolachlor
and 0.23 – 0.28 lb./A
metribuzin]


Medium Soils with 0.5-3%
OM:
1.8-2.1 pt/A
[1.18 – 1.38 lb./A S-metolachlor
and 0.28 – 0.33 lb./A
metribuzin]
Medium Soils with >3% OM:
2.1-2.4 pt/A
[1.38 – 1.58 lb./A S-metolachlor
and 0.33 – 0.38 lb./A
metribuzin]


Fine Soils with 0.5-3% OM:
2.4-2.7 pt/A
[1.58 – 1.77 lb./A S-metolachlor
and 0.38 – 0.42 lb./A
metribuzin]
Fine Soils with >3% OM:
2.4-3.0 pt/A
[1.58 – 1.97 lb./A S-metolachlor
and 0.38 – 0.47 lb./A
metribuzin]


Dry weather following Boundary 6.5EC
application may reduce effectiveness.

Where a rate range is listed, use the
higher rates (a) in fields with a history of
severe weed pressure, (b) when the time
between early preplant and preemergence
overlay applications approaches the
maximum 30 days, (c) when the organic
matter content of the soil is over 3%,
and/or (d) when heavy crop residues are
present on the soil surface.

Preplant Surface Application
Boundary 6.5EC may be applied up to 30
days before planting. For application
earlier than 30 days before planting the
high rate in the rate range may be needed
for extended residual control.

If weeds are present at time of application,
burndown herbicides must be tank mixed
to control emerged weeds (see Burndown
Weed Control in Section 8.2.2).

Preplant Incorporated Application
Incorporate Boundary 6.5EC Herbicide
within 14 days of planting uniformly into
the top 2 inches of soil using an implement
capable of providing uniform incorporation.

Apply preplant incorporated if furrow
irrigation is used or when a period of dry
weather after application is expected.

If soybeans are planted on beds, apply
and incorporate the tank mixture after bed
formation.

Preemergence application
Apply during planting or after planting but
before crop emerges.

29

Conventional Tillage
Systems - Coarse
Textured Soils in AL,
AR, FL, GA, LA, MS,
MO, NC, OK, SC, TN,
TX, and VA ONLY

Preplant Surface

Preplant Incorporated

Preemergence
For all applications use the rate
for the specific soil texture and
organic matter (OM) as follows:

Coarse Soils with ≥0.5% OM:
1.2-2.1 pt/A
[0.79 – 1.38 lb./A S-metolachlor
and 0.19 – 0.33 lb./A
metribuzin]


Use on sand with less than 1% organic
matter
may result in crop injury.


Reduced Tillage and
No-Till Systems

Preplant Surface

Preplant Incorporated

Preemergence


For all applications use the rate
for the specific soil texture as
follows:

Coarse Soils:
1.2-2.1 pt/A
[0.79 – 1.38 lb./A S-metolachlor
and 0.19 – 0.33 lb./A
metribuzin]


Medium Soils:
2.1-3.0 pt/A
[1.38 – 1.97 lb./A S-metolachlor
and 0.33 – 0.47 lb./A
metribuzin]


Fine Soils:
2.7-3.6 pt/A
[1.77 – 2.36 lb./A S-metolachlor
and 0.42 – 0.56 lb./A
metribuzin]

Application may be made up to 30 days
before planting or after planting, but before
soybean emergence.

For all soil textures, use low rate range for
low residue level or soils with less than 3%
organic matter. Use the higher rate range
for high residue level or soils with greater
than 3% organic matter.


Silty clay loam soils are transitional soils
and may be classified as medium-textured
soils in some regions of the U.S. When
using Boundary 6.5EC Herbicide, treat this
soil as "fine-textured."
Postemergence
Directed Application
(AR, LA,MO-Bootheel,
MS, and TN ONLY)
For all applications use the rate
for the specific soil texture and
organic matter (OM) as follows:


Coarse Soils with 0.5-3% OM:
1.3 pt/A
[0.85 lb./A S-metolachlor and
0.20 lb./A metribuzin]
Coarse Soil with ≥3% OM:
1.5 pt/A
[0.98 lb./A S-metolachlor and
0.23 lb./A metribuzin]
Medium Soils with 0.5-3%
OM:
1.5-2.0 pt/A
A postemergence directed spray can be
applied to soybeans in addition to a
preemergence or preplant application of
Boundary 6.5EC Herbicide according to
label directions.

Apply in 10 to 20 gallons of water per acre
in a 6 to 8 inch band on each side of the
row when soybeans are at least 8 inches
tall. DO NOT allow the directed spray to
contact more than the lower ¼ to 1/3 of
soybean plants.

Postemergence directed applications of
Boundary 6.5EC Herbicide can be tank
mixed with other herbicides for control of
emerged weeds.

30

[0.98 – 1.31 lb./A S-metolachlor
and 0.23 – 0.31 lb./A
metribuzin]

Medium Soils with ≥3% OM:
2 pt/A
[1.31 lb./A S-metolachlor and
0.31 lb./A metribuzin]
Fine Soils with ≥0.5 OM:
2 pt/A
[1.31 lb./A S-metolachlor and
0.31 lb./A metribuzin]
Mississippi Delta Only with
≥0.5% OM: (silty clay, clay)
2 pt/A
[1.31 lb./A S-metolachlor and
0.31 lb./A metribuzin]


For Weed Control:
• Refer to Section 7.1 for list of weeds controlled or partially controlled.
Tank Mix or Sequential Application Options:
• Refer to Section 8.2.2 for tank-mix or sequential application options.
• Refer to the tank-mix partner for use directions, restrictions, and limitations. Follow the most
restrictive product label.
Resistance Management:
• Refer to Section 3.1.
Precautions:
• Injury to soybeans or reduced weed control may occur when Boundary 6.5EC Herbicide is used
under the following conditions, these conditions should be avoided wherever possible.
o When soils have a calcareous surface area or a pH of 7.5 or higher.
o Due to the sensitivity of certain soybean varieties, consult your seed supplier for
information on its tolerance to metribuzin (an active ingredient in Boundary 6.5EC
Herbicide) before using Boundary 6.5EC Herbicide.
o When applied in conjunction with soil-applied organic phosphate pesticides.
o Uneven application or improper incorporation of Boundary 6.5EC Herbicide can decrease
the level of weed control and/or increase the level of crop injury.
o When applied to any soil with less than 0.5% organic matter.
o Where soil incorporation is deeper than recommended.
o When sprayers were not calibrated accurately.
o When heavy rains occur soon after application, especially in poorly drained areas where
water may stand for several days.
o When soybeans are planted less than 1-½” deep, particularly when Boundary 6.5EC
Herbicide is applied preemergence.
o Where high soil levels of atrazine are present.
o When using poor quality soybean seed.
• On soils with pH above 7.0, soybean injury caused by metribuzin in Boundary 6.5EC Herbicide
may occur at rates higher than 1.5 pt/A. To avoid injury, DO NOT use Boundary 6.5EC Herbicide
at rates greater than 1.5 pt/A on soils above pH 7.0.
• If replanting is necessary in fields previously treated with Boundary 6.5EC Herbicide, the field may
be replanted to soybeans. A minimum of tillage is recommended. DO NOT apply a second
treatment as injury to soybeans may occur.
• When making a post-directed application, soybean leaves contacted by spray will be killed or
severely injured. DO NOT apply directly to soybeans or serious injury will occur.
• If heavy rain occurs soon after a post-directed application, crop injury may result, especially in
poorly drained areas where water stands for several days.

31

USE RESTRICTIONS
1) Refer to Section 6.1 for additional product use restrictions.
2) Maximum Single Application Rate: 3.6 pt/A (2.36 lb/A of S-metolachlor and 0.56 lb/A of
metribuzin)
3) Maximum Annual Rate: 3.6 pt/A/year of Boundary 6.5EC Herbicide
a. DO NOT exceed 3.71 lb ai/A/year of S-metolachlor-containing products.
b. DO NOT exceed 1.0 lb ai/A/year of metribuzin-containing products
4) DO NOT graze or feed treated soybean plants or hay to livestock for 40 days following application,
except following a post-directed application. DO NOT graze or feed treated soybean forage, hay,
or straw to livestock following a post-directed application.
5) DO NOT make more than 2 applications a year, where the total of the two applications will not
exceed 3.6 pt/A/yr (2.36 lb/A of S-metolachlor and 0.56 lb/A of metribuzin)
6) Minimum Application Interval: 2 weeks
7) Pre-harvest Interval (PHI): 75 days
8) On coarse-textured soils, do not use on loamy sand soils with less than 2% organic matter.

32

8.2.2 Tank-Mix or Sequential Combinations
Application Tank-Mix Brands Use Directions
Burndown Weed
Control
2,4-D brands

Dicamba brands

Glufosinate brands

Glyphosate only brands

Gramoxone® SL 3.0
 (EPA Reg. No. 100-
1652)


Boundary 6.5EC Herbicide can be tank mixed
with other herbicides as part of a burndown
herbicide program for control of existing
vegetation prior to soybean emergence.

Boundary 6.5EC Herbicide may be applied up
to 30 days before planting or preemergence.

Use the rates below for Boundary 6.5EC
Herbicide based upon soil texture. Use the high
end of the rate range for Boundary 6.5EC
Herbicide applications made 14-30 days before
planting.

Coarse Soils 1.2-2.1 pt/A
Medium Soils 2.1-3.0 pt/A
Fine Soils 2.7-3.6 pt/A

Use low end of the rate range for low residue
level or soils with less than 3% organic matter.
Preplant Surface

Preplant
Incorporated

Preemergence


Canopy® 75 DG
(EPA Reg. No. 353-444)

Dual Magnum® brands
(EPA Reg. Nos. 100-
816, 100-818, 100-829)

FirstRate® 84 WDG
(EPA Reg. No. 5481-
676)

Pursuit®
(EPA Reg. No. 241-310)

Python® 80 WDG
(EPA Reg. No. 62719-
277)

Scepter® 70 DG
(EPA Reg. No. 241.306)

Sonic®
(EPA Reg. No. 62719-
680)

Suflentrazone brands

Synchrony
(EPA Reg. No. 353-648)

Prowl® 3.3 EC
(EPA Reg. No. 241-337)
Use these tank mixtures for residual control of
certain broadleaf weeds and grasses in
soybeans in addition to those controlled by
Boundary 6.5EC.

Use higher rate of Boundary 6.5EC Herbicide
on soils with more than 3% organic matter.

For use on coarse soils Coarse Textured Soils
in AL, AR, FL, GA, LA, MS, MO, NC, OK, SC,
TN, TX, and VA, use the rates for Boundary
6.5EC Herbicide presented in Section 8.2.1.

33

For Weed Control:
Refer to Section 7.1 for list of weeds controlled or partially controlled.
Precautions:
• DO NOT apply burndown mixtures with Boundary 6.5EC Herbicide after crop emergence.
• DO NOT use on sand soils or on loamy sand soils with <2% organic matter.
• DO NOT use this mixture on soils with pH greater than 7.0.
TANK-MIX USE RESTRICTIONS
1) All use restrictions cited in Section 8.2.1 for Boundary 6.5EC Herbicide solo apply to tank
mixes with Boundary 6.5EC Herbicide.
2) It is the pesticide user’s responsibility to ensure that all products are registered for the intended
use. Read and follow the applicable restrictions and 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.

8.3 Sugarcane (Only for use in LA, FL and TX)
8.3.1 Preplant Surface, Preemergence or Postemergence
Applications
Crops (including cultivars, varieties, and/or hybrids of these)
Sugarcane
Application Timing Rate (pt/A) Use Directions
Preplant Surface

Preemergence

Postemergence
1.5 to 3.0 pt/A
[0.98 – 1.97 lb./A
S-metolachlor and
0.23 – 0.47 lb./A
metribuzin]

Dry weather following Boundary 6.5EC application
may reduce effectiveness.

Preplant Application:
Apply prior to planting of cane.

Preemergence Application:
Apply after planting of cane but prior to crop
emergence.

Application can also be made after harvest of
ratoon cane.

Postemergence Application:
Spray contact with sugarcane foliage may result in
minor leaf margin chlorosis and/or necrosis.

The addition of a spray adjuvants such as crop oil
concentrates (COC’s) or methylated seed oils
(MSO’s) can increase the risk of crop injury.
For Weed Control:
Refer to Section 7.1 for list of weeds controlled or partially controlled.
PRECAUTIONS
1) If Boundary 6.5EC Herbicide is tank-mixed with other herbicides, follow the label restrictions for the
most restrictive tank-mix partner(s).
USE RESTRICTIONS
1) Maximum Single Application Rate: 3.0 pt/A (1.97 lb./A S-metolachlor and 0.47 lb./A metribuzin)
2) DO NOT apply more than two applications of Boundary 6.5EC per year
3) Minimum Application Interval: 2 weeks

34

4) Maximum Annual Rate: 5.1 pt/A/year (3.34 lb./A S-metolachlor and 0.80 lb./A metribuzin)
a. DO NOT exceed 2.0 lbs ai/A/year of metribuzin containing products in Florida
b. DO NOT exceed 3.0 lbs ai/A/year of metribuzin containing products in Louisiana and
Texas.
c. DO NOT exceed 3.34 lbs ai/A/year of S-metolachlor containing products
5) DO NOT use treated foliage for feed, hay, or forage.
6) DO NOT apply within 100 days of harvest.
7) DO NOT use on sand soils in Florida.
8) To assure that spray will not adversely affect adjacent nontarget plants, apply this product by
aircraft at a minimum upwind distance of 400 ft. from sensitive plants.

9.0 STORAGE AND DISPOSAL
STORAGE AND DISPOSAL

DO NOT contaminate water, food, or feed, by storage or disposal.

Pesticide Storage

Store in a cool, dry place and in such a manner as to prevent cross -contamination with
other pesticides, fertilizers, food, and feed. Store in original container and out of the reach of
children, preferably in a locked storage area.

Handle and open container in a manner as to prevent spillage. If container is leaking,
invert to prevent leakage. If the container is leaking or material is spilled for any reason or cause,
carefully dam up spilled material to prevent runoff. Refer to Precautionary Statements on label
for hazards associated with the handling of this material. DO NOT walk through spilled material.
Absorb spilled material with absorbing type compounds and dispose of as directed for pesticides
below. In spill or leak incidents, keep unauthorized people away.

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 [less than or equal to 5 gallons]
Non-refillable container. DO NOT reuse or refill this container. Triple rinse conta iner (or
equivalent) promptly after emptying. Triple rinse as follows: Empty the remaining contents into
application equipment or a mix tank and drain for 10 seconds after the flow begins to drip. Fill the
container ¼ full with water and recap. Shake f or 10 seconds. Pour rinsate into application
equipment or a mix tank or store rinsate for later use and disposal. Drain for 10 seconds after the
flow begins to drip. Repeat this procedure two more times. Then offer for recycling if available
or puncture and dispose of in a sanitary landfill, or by other procedures approved by state and
local authorities.

Container Handling [Greater than 5 gallons]
Non-refillable 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 ¼ full with water. Replace and tighten

35

closures. Tip container on its side and roll it back and forth, ensur ing 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 offer for recycling if available or puncture and dispose of in
a sanitary landfill, or by other procedures approved by state and local authorities.

Container Handling [Greater than 5 gallons]
Refillable container. Refill this container with pesticide only. DO NOT reuse this container
for any other purpose. Cleaning the container before final disposal is the responsibility of the
person disposing of the container. Cleaning before refilling is the responsibility of the person
refilling. To clean container before final disposal, empty the remaining contents from this
container into application equipment or mix tank. Fill the container about 10 perce nt full with
water. Agitate vigorously or recirculate water with the pump for 2 minutes. Pour or pump rinsate
into application equipment or rinsate collection system. Repeat this rinsing procedure two more
times. Then offer for recycling if available or puncture and dispose of in a sanitary landfill, or by
other procedures allowed by state and local authorities.
For minor spills, leaks, etc., follow all precautions indicated on this la bel and clean up
immediately. Take special care to contain spills , leaks, and other accidents to prevent further
exposure of facilities and equipment. Absorb spilled product with absorbing materials and dispose
of in an approved waste disposal facility. In the event of a major spill, fire, or other emergency,
call 1-800-888-8372, day or night.

CONTAINER IS NOT SAFE FOR FOOD, FEED, OR DRINKING WATER.

10.0 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, presence of other materials
or other influencing factors in the use of the product, which are beyond the control of
SYNGENTA CROP PROTECTION, LLC or Seller. To the extent permitted by
applicable law, Buyer and User agree to hold SYNGENTA and Seller harmless for any
claims relating to such factors.

36

SYNGENTA warrants that this product conforms to the chemical description on the label
and is reasonably fit for the purposes stated in the Directions for Use, subject to the
inherent risks referred to above, when used in accordance with directions under normal use
conditions. To the extent permitted by applicable law: (1) this warranty does not extend to the
use of the product contrary to label instructions, or under conditions not reasonably foreseeable
to or beyond the control of Seller or SYNGENTA, and (2) Buyer and User assume the risk of
any such use. TO THE EXTENT PERMITTED BY APPLICABLE LAW, SYNGENTA MAKES
NO WARRANTIES OF MERCHANTABILITY OR OF FITNESS FOR A PARTICULAR
PURPOSE NOR ANY OTHER EXPRESS OR IMPLIED WARRANTY EXCEPT AS
WARRANTED BY THIS LABEL.

To the extent permitted by applicable law, in no event shall SYNGENTA be liable for
any incidental, consequential or special damages resulting from the use or handling of this
product. TO THE EXTENT PERMITTED BY APPLICABLE LAW, THE EXCLUSIVE
REMEDY OF THE USER OR BUYER, AND THE EXCLUSIVE LIABILITY OF
SYNGENTA 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 SYNGENTA OR SELLER, THE REPLACEMENT OF THE PRODUCT.

SYNGENTA and Seller offer this product, and Buyer and User accept it, subject to the
foregoing Conditions of Sale and Limitation of Warranty and Liability, which may not be
modified except by written agreement signed by a duly authorized representative of
SYNGENTA.

Boundary®, Dual Magnum®, Gramoxone®, the ALLIANCE FRAME, the SYNGENTA
Logo, and the PURPOSE ICON are Trademarks of a Syngenta Group Company

FirstRate®, Python®, Sonic®, and Viton® are trademarks of Corteva Agriscience

Clorox® is a trademark of The Clorox Company

Agsorb® is a trademark of Oil-Dri Corporation

Prowl®, Pursuit®, and Scepter® are trademarks of BASF Ag Products

Celatom® MP-79® is a trademark of Eagle-Picher Industries, Inc.

Canopy®, and Viton® trademarks of E. I. du Pont de Nemours and Co.

37

©20XX Syngenta


For non-emergency (e.g., current product information), call
Syngenta Crop Protection at 1-800-334-9481.


Manufactured for:
Syngenta Crop Protection, LLC
P. O. Box 18300
Greensboro, North Carolina 27419-8300

Boundary 6.5EC Herbicide 1162 MAS 1222 AMEND.MAR2023-CL – di – 3/16/2023
000100-01162.20230324.Boundary_6.5EC_Herbicide.AMEND.MAR2023-CL

Boundary 6.5EC Herbicide
Page 1

SUPPLEMENTAL LABELING

Syngenta Crop Protection, LLC
P. O. Box 18300
Greensboro, North Carolina 27419-8300

SCP 1062A-S3 1222

Boundary
® 6.5EC Herbicide

This supplemental label expires on 11/14/2025 and must not be used or
distributed after this date.

Active Ingredients: % by wt.
S-metolachlor *: ..................................................................................................... 58.2%
Metribuzin**………………………………………………………………………………...13.8%
Other Ingredients***: 28.0%
Total: 100.0%

*CAS No. 87392-12-9
**CAS No. 21087-64-9
***Contains petroleum distillates.

Boundary
® 6.5EC Herbicide is formulated as an Emulsifiable Concentrate (EC) containing
5.25 lb of S-metolachlor and 1.25 lb of metribuzin per gallon.

KEEP OUT OF REACH OF CHILDREN

WARNING/AVISO

EPA Reg. No. 100-1162

All applicable directions, restrictions and precautions on the EPA registered label
are to be followed. Before using Boundary 6.5EC Herbicide as permitted according
to this supplemental label, read and follow all applicable directions, restrictions,
and precautions on the EPA registered label on or attached to the pesticide product
container. This Supplemental Labeling contains revised use inst ructions and or
restrictions that may be different from those that appear on the container label.
This Supplemental Labeling must be in the possession of the user at the time of
pesticide application. It is a violation of Federal law to use this product in a manner
inconsistent with its labeling.


06/22/2023
100-1162

Boundary 6.5EC Herbicide
Page 2
DIRECTIONS FOR USE

Sugarcane (Only for use in LA, FL and TX)
 Preplant Surface, Preemergence or Postemergence Applications

Crops (including cultivars, varieties, and/or hybrids of these)
Sugarcane
Application Timing Rate (pt/A) Use Directions
Preplant Surface

Preemergence

Postemergence
1.5 to 3.0 pt/A
[0.98 – 1.97 lb./A
S-metolachlor and
0.23 – 0.47 lb./A
metribuzin]
Dry weather following Boundary 6.5EC application
may reduce effectiveness.

Preplant Application:
Apply prior to planting of cane.

Preemergence Application:
Apply after planting of cane but prior to crop
emergence.

Application can also be made after harvest of
ratoon cane.

Postemergence Application:
Spray contact with sugarcane foliage may result in
minor leaf margin chlorosis and/or necrosis.

The addition of a spray adjuvants such as crop oil
concentrates (COC’s) or methylated seed oils
(MSO’s) can increase the risk of crop injury.
For Weed Control:
Refer to Section 7.1 for list of weeds controlled or partially controlled.
PRECAUTIONS
1) If Boundary 6.5EC Herbicide is tank-mixed with other herbicides, follow the label restrictions for
the most restrictive tank-mix partner(s).
USE RESTRICTIONS
1) Maximum Single Application Rate: 3.0 pt/A (1.97 lb./A S-metolachlor and 0.47 lb./A metribuzin)
2) DO NOT apply more than two applications of Boundary 6.5EC per year
3) Minimum Application Interval: 2 weeks
4) Maximum Annual Rate: 5.1 pt/A/year (3.34 lb./A S-metolachlor and 0.80 lb./A metribuzin)
a. DO NOT exceed 2.0 lbs ai/A/year of metribuzin containing products in Florida
b. DO NOT exceed 3.0 lbs ai/A/year of metribuzin containing products in Louisiana and
Texas, except Florida.
c. DO NOT exceed 3.34 lbs ai/A/year of S-metolachlor containing products
5) DO NOT use treated foliage for feed, hay, or forage.
6) DO NOT apply within 100 days of harvest.
7) DO NOT use on sand soils in Florida.
8) To assure that spray will not adversely affect adjacent sensitive nontarget plants, apply this
product by aircraft at a minimum upwind distance of 400 ft. from sensitive plants.

Boundary® and the Syngenta Logo are trademarks of a Syngenta Group
Company

©2023 Syngenta

Boundary 6.5EC Herbicide 1162 MAS 1222 NOTIF SUP JAN2023-CL - di - 1/24/2022
000100-01162.20230125.Boundary_6.5EC_Herbicide.NOTIF-SUP-JAN2023-CL