crop-chem-docs/corpus/epa_ppls/100-1684.md

# A23372 Herbicide

- EPA Reg No: **100-1684**
- Registrant: SYNGENTA CROP PROTECTION, LLC
- Signal word: Caution
- Active ingredients: Metribuzin (7.13%); S-Metolachlor (38.6%); Cloransulam-methyl (0.72%)
- Label accepted: 2022-01-05
- Source PDF: https://www3.epa.gov/pesticides/chem_search/ppls/000100-01684-20220105.pdf

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Registration Notice Conditional v.20150320 
 
 
 
 U.S. ENVIRONMENTAL PROTECTION AGENCY 
Office of Pesticide Programs 
Registration Division (7505P) 
1200 Pennsylvania Ave., N.W. 
Washington, D.C. 20460 
 
EPA Reg. Number: 
 
100-1684 
 
Date of Issuance: 
 
1/5/22 
NOTICE OF PESTICIDE: 
 X Registration 
 Reregistration 
 
Term of Issuance: 
Conditional 
 (under FIFRA, as amended) 
Name of Pesticide Product: 
A23372 HERBICIDE 
 
Name and Address of Registrant (include ZIP Code): 
Syngenta Crop Protection, LLC 
P. O. Box 18300 
Greensboro, North Carolina 27419-8300 
 
Note: Changes in labeling differing in substance from that accepted in connection with this registration must be submitted to and accepted by the 
Registration Division prior to use of the label in commerce. In any correspondence on this product always refer to the above EPA registration number. 
 
On the basis of information furnished by the registrant, the above named pesticide is hereby registered 
under the Federal Insecticide, Fungicide, and Rodenticide Act (FIFRA). 
 
Registration is in no way to be construed as an endorsement or recommendation of this product by the 
Agency. In order to protect health and the environment, the Administrator, on his motion, may at any 
time suspend or cancel the registration of a pesticide in accordance with the Act. The acceptance of any 
name in connection with the registration of a product under this Act is not to be construed as giving the 
registrant a right to exclusive use of the name or to its use if it has been covered by others. 
 
 
This product is conditionally registered in accordance with FIFRA section 3(c)(7)(A). You must comply 
with the following conditions: 
 
1. Submit and/or cite all data required for registration/reregistration/registration review of your 
product under FIFRA when the Agency requires all registrants of similar products to submit such 
data. 
 
 
Continues page 2 
 
 
Signature of Approving Official: 
 Mindy Ondish, Product Manager 23 
Herbicide Branch, Registration Division (7505P) 
 
Date: 
 
 1/5/22 
EPA Form 8570-6

Page 2 of 2 
EPA Reg. No. 100-1684 
Decision No. 568099 
 
2. You are required to comply with the data requirements described in the generic data call-ins 
(GDCIs) identified below: 
 
a. Metribuzin GDCI-101101-1304 and 101101-1825 
 
You must comply with all of the data requirements within the established deadlines. If you have 
questions about the GDCIs listed above, you may contact the Chemical Review Manager in the 
Pesticide Reevaluation Division: http://iaspub.epa.gov/apex/pesticides/f?p=chemicalsearch:1 
 
3. Submit one copy of the final printed label for the record before you release the product for 
shipment. 
 
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) 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. 
 
If you fail to satisfy these data requirements, EPA will consider appropriate regulatory action including, 
among other things, cancellation under FIFRA section 6(e). Your release for shipment of the product 
constitutes acceptance of these conditions. A stamped copy of the label is enclosed for your records. 
 
The alternate brand name, “Tendovo Herbicide” is added to the product record. 
 
Please also note that the record for this product currently contains the following CSFs: 
 
 Basic CSF dated 7/12/2021 
 Alternate CSF 1 dated 7/12/2021 
 
If you have any questions, please contact Sarah Meadows by phone at 202-566-2828, or via email at 
meadows.sarah@epa.gov. 
 
 
Enclosure

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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 
CLORANSULAM-METHYL GROUP 2 HERBICIDE 
 
A23372 Herbicide 
 
[Alternate Brand Name: Tendovo® Herbicide] 
 
For control of certain grasses and broadleaf weeds in soybeans 
 
Active Ingredient: 
S-metolachlor*: ....................................................................................................... …..38.60% 
Metribuzin**: …………………………………………………………………………………….7.13% 
Chloransulam-methyl***: ………………………………………………………………………0.72% 
Other Ingredients: 53.55% 
Total: 100.0% 
 
*CAS No. 87392-12-9 
**CAS No. 21087-64-9 
*** CAS No. 147150-35-4 
 
A23372 Herbicide is a ZC formulation containing 3.47 lb of S-metolachlor, 0.065 
lb of Cloransulam-methyl and 0.642 lb of Metribuzin per gallon. 
 
KEEP OUT OF REACH OF CHILDREN 
 
CAUTION 
 
 
See additional precautionary statements and directions for use [on label] [inside booklet]. 
 
EPA Reg. No. 100-1684 
EPA Est. 
 
__________ 
Net Contents 
[Batch Code: _____] (For nonrefillables only.) 
01/05/2022
100-1684

2 
 
 
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 Reporting Ecological Incidents 
2.6.5 Mixing/Loading/Application Instructions 
DIRECTIONS FOR USE 
3.0 PRODUCT INFORMATION 
3.1 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 A23372 Herbicide Alone 
4.4.2 Tank-Mix Precautions 
4.4.3 Tank-Mix Compatibility 
4.4.4 A23372 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 
4.6 Sprayer Cleanout 
5.0 REPLANT AND ROTATIONAL CROP RESTRICTIONS 
5.1 Replanting 
5.2 Rotational Crop Restrictions

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6.0 COVER CROPS 
6.1 Field Bioassay for Cover Crops 
7.0 RESTRICTIONS AND PRECAUTIONS 
7.1 Use Restrictions 
7.2 Use Precautions 
7.3 Spray Drift Management 
7.3.1 Spray Drift Advisories 
7.3.2 Importance of Droplet Size 
7.3.3 Controlling Droplet Size - Ground Boom 
7.3.4 Controlling Droplet Size - Aircraft 
7.3.5 Boom Height - Ground Boom 
7.3.6 Boom Height - Aircraft 
7.3.7 Shielded Sprayers 
7.3.8 Temperature and Humidity 
7.3.9 Temperature Inversions 
7.3.10 Wind 
7.3.11 Sensitive Areas 
7.3.12 Handheld Technology Applications 
8.0 WEEDS CONTROLLED OR PARTIALLY CONTROLLED BY A23372 HERBICIDE 
8.1 Weeds Controlled by A23372 Herbicide in Soybeans 
9.0 CROP USE DIRECTIONS 
9.1 Soybeans (except California) 
9.1.1 Preplant Surface, Preplant Incorporated, or Preemergence Applications 
9.1.2 Tank-Mix Combinations for Soybeans 
10.0 STORAGE AND DISPOSAL 
11.0 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 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 doctor for further treatment advice. 
Have the product container or label with you when calling a poison control center or 
doctor or going for treatment. 
HOTLINE NUMBER 
For 24-Hour Medical Emergency Assistance (Human or Animal) 
Or Chemical Emergency Assistance (Spill, Leak, Fire or Accident) 
Call 
1-800-888-8372 
 
PRECAUTIONARY STATEMENTS 
 
2.0 PRECAUTIONARY STATEMENTS 
2.1 Hazards to Humans and Domestic Animals 
CAUTION 
Causes moderate eye irritation. Harmful if swallowed. Harmful if absorbed through skin. 
Avoid contact with skin, eyes, 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. Prolonged or frequently repeated skin contact 
may cause allergic reactions in some individuals.

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2.2 Personal Protective Equipment (PPE) 
All applicators and other handlers must wear: 
• Protective eyewear 
• Long-sleeved shirt and long pants 
• Socks plus shoes 
• Chemical-resistant gloves made of barrier laminate, butyl rubber ≥ 14 mils, nitrile rubber ≥ 
14 mils, neoprene rubber ≥ 14 mils, natural rubber ≥ 14 mils, polyethylene, polyvinyl 
chloride (PVC) ≥ 14 mils or Viton® ≥ 14 mils 
 
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. 
Pilots must use an enclosed cockpit that meets the requirements listed in the WPS for 
agricultural pesticides (40 CFR 170.607(d-f)). 
2.5 User Safety Recommendations 
User Safety Recommendations 
Users should: 
• Wash hands thoroughly with soap and water after handling and before eating, 
drinking, chewing gum, using tobacco or using the toilet. 
• Remove clothing/PPE immediately if pesticide gets inside. Then wash thoroughly 
and put on clean clothing. 
• Remove 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 and cloransulam-methyl are known to travel (seep or leach) through soil and 
can contaminate groundwater under certain conditions as a result of label use. These 
chemicals 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 
This product contains S-metolachlor, metribuzin, and cloransulam-methyl which may 
contaminate or otherwise impact surface water quality due to runoff of rain water or 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 and aquatic sediment 
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, metribuzin, 
and chloransulam-methyl 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. Protect the forage and 
habitat of non-target organisms by following label directions intended to minimize spray drift. 
2.6.4 Reporting Ecological Incidents 
To report ecological incidents, including mortality, injury, or harm to plants and animals, call 
1-800-888-8372. 
2.6.5 Mixing/Loading/Application Instructions 
Care must be taken 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 mixed, loaded, or used within 50 ft of all wells, including 
abandoned wells, drainage wells, and sink holes.

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• 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. 
o Such a pad shall be designed and maintained to contain any product spills or 
equipment leaks, container or equipment rinse or wash water, and rainwater that 
may fall on the pad. 
o Surface water shall not be allowed to either flow over or from the pad, which means 
the pad must be self-contained. 
o The pad shall be sloped to facilitate material removal. 
o 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. 
o 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. 
2.7 Physical or Chemical Hazards 
Do not use with or store near any oxidizing or reducing agents. Hazardous reaction could 
occur. 
 
 
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. 
FAILURE TO FOLLOW DIRECTIONS AND PRECAUTIONS ON THIS LABEL MAY 
RESULT IN CROP INJURY, POOR WEED CONTROL, AND/OR ILLEGAL RESIDUES. 
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

8 
 
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, 
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: 
• Long-sleeved shirt and long pants 
• Chemical-resistant gloves made of barrier laminate, butyl rubber ≥ 14 mils, nitrile 
rubber ≥ 14 mils, neoprene rubber ≥ 14 mils, natural rubber ≥ 14 mils, 
polyethylene, polyvinyl choride (PVC) ≥ 14 mils or Viton 14 mils 
• Socks plus shoes 
 
3.0 PRODUCT INFORMATION 
A23372 Herbicide is a selective herbicide that can be applied for control of most annual 
grasses and the broadleaf weeds listed on this label in soybeans. 
A23372 Herbicide may be applied preplant surface, preplant incorporated, or preemergence. 
A23372 Herbicide can also be used as part of a herbicide burndown program for control of 
existing vegetation prior to soybean emergence in reduced-tillage/no-till systems in a tank-
mix for enhanced performance. 
 
A23372 Herbicide is not registered for use on soybeans in the State of California.

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3.1 Resistance Management 
S-METOLACHLOR GROUP 15 HERBICIDE 
METRIBUZIN GROUP 5 HERBICIDE 
CLORANSULAM-METHYL GROUP 2 HERBICIDE 
 
To reduce the potential for herbicide resistance issues, the end use product, A23372 
Herbicide label contains the following label language that provides the user with information 
on resistant weed management. 
A23372 Herbicide contains the active ingredients S-metolachlor which inhibits the formation 
of very long chain fatty acids (VLCFA, Site of Action Group 15), metribuzin which inhibits the 
photosynthetic pathway of photosystem II (PSII, Site of Action Group 5), and cloransulam-
methyl which inhibits acetolactate synthase (ALS inhibitor, Site of Action Group 2). Some 
naturally occurring weed populations have been identified as resistant to Group 2, 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 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.

10 
 
• 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; 
• 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-Syngent (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 A23372 Herbicide alone or in tank mixtures are permitted by ground and by 
air. Preplant surface, preplant incorporated, or preemergence applications are allowed as

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specified in Section 9.0. For band-application refer to Section 4.1.1 to calculate the amount 
of herbicide needed. 
 
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 
 
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. 
• All ground, aerial, 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 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. 
Incorporation of A23372A may reduce control grass and broadleaf weed control. 
 
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 aerial application, apply alone or in tank mixtures in a minimum total volume of 2 gal/A 
of spray mixture. 
 
4.4 Mixing Directions 
1. Thoroughly clean spray equipment before using this product. Dispose of the cleaning 
solution in a responsible manner. 
2. Prepare no more spray mixture than is needed for the immediate operation. 
3. Agitation is necessary to maintain uniformity of the spray mixture. 
4. Keep product container tightly closed when not in use. 
5. Do not let the spray mixture stand overnight in the spray tank. 
6. Flush the spray equipment thoroughly following each use and apply the rinsate to a 
previously treated area.

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4.4.1 A23372 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 A23372 Herbicide into the spray tank. 
3. Continue agitation while adding the remainder of the water or fluid fertilizer. 
4. Begin application of the spray solution after the A23372 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. 
• Check compatibility (Section 4.4.3) with other pesticides and/or liquid fertilizers before 
mixing in spray tank. 
 
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 specified label rates. Add tank-mix components separately in the 
order described in the tank-mixing section, Section 4.4.4. After each addition, shake or 
stir gently to thoroughly mix. 
• 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 specified 
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 10.0, of this label. 
 
4.4.4 A23372 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.

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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 A23372 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 
4. Dry flowables 
5. Liquid flowables 
6. Liquids such as A23372 Herbicide 
7. 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. 
 
[Note to Reviewer: Section 4.5 (Dry Bulk Granular Fertilizers) is included as optional 
text.] 
4.5 Dry Bulk Granular Fertilizers 
Many dry bulk granular fertilizers may be impregnated or coated with A23372 Herbicide alone 
or selected A23372 Herbicide tank mixtures which are registered to control weeds in crops on 
the A23372 Herbicide label and are not prohibited from use on dry bulk granular fertilizers. 
When applying A23372 Herbicide or A23372 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 A23372 Herbicide and A23372 Herbicide mixtures onto 
the fertilizer in such a way as to provide uniform spray coverage. 
• 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.

14 
 
• 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 A23372 Herbicide to be used by the following formula: 
 
2,000 
X 
pt. of A23372 
Herbicide = 
pt. of A23372 
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 A23372 Herbicide with Exxon Aromatic 200 at a rate of 2.0-
2.5 pt/gal of A23372 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. 
 
4.5.3 Precautions 
• Use mixtures of A23372 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. 
• When impregnating A23372 Herbicide in a blender before application, a drier mixture can 
be attained by substituting a drying agent for Aromatic 200. 
• The use of Agsorb® FG or another drying agent of 6/30 particle size is recommended. 
• Drying agents are not recommended for use with On-The-Go impregnation equipment. 
 
 
TO AVOID POTENTIAL FOR EXPLOSION: 
o Do not impregnate A23372 Herbicide on ammonium nitrate, potassium nitrate, or 
sodium nitrate, either alone or in blends with other fertilizers. 
o Do not combine A23372 Herbicide with a single superphosphate (1-20-0) or triple 
superphosphate (0-46-0). 
o Do not use A23372 Herbicide on straight limestone, since absorption will not be 
achieved. Fertilizer blends containing limestone can be impregnated. 
 
4.5.4 Application Instructions 
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.

15 
 
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 A23372 Herbicide impregnated onto dry bulk fertilizers can be expected to last longer in 
the soil than A23372 Herbicide applied as a spray in water or fluid fertilizer. 
[End of optional text] 
 
4.6 Sprayer Cleanout 
Because some non-labeled crops are sensitive to low rates of A23372 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 1-3 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.

16 
 
5.0 REPLANT AND ROTATIONAL CROP RESTRICTIONS 
5.1 Replanting 
If replanting is necessary in fields previously treated with A23372 Herbicide, the field may be 
replanted to soybeans. Before replanting, refer to the specific crop use section for use 
directions, precautions and restrictions. 
 
5.2 Rotational Crop Restrictions 
The following crops may be planted at the specified interval following application of A23372 
Herbicide. 
Crop Plant-Back Interval 
Soybeans Anytime 
Wheat, Winter 4½ Months 
Alfalfa 
Beans, Snap 
Corn, Field 
Corn, Pop 
Corn, Seed 
Rice 
Wheat, Spring 
9 Months 
 
Barley, Spring 
Barley, Winter 
Beans, Lima 
Cotton 
Oats 
Peas 
Peanuts 
Sorghum 
12 Months 
Corn, Sweet 
Tobacco 
Other Crops Not Listed 
18 Months 
Sugarbeets 
Sunflower 30 Months 
Precaution 
• Crop rotation restrictions do not include restrictions for the tank mix partners. Refer to the label of 
tank mix partners for additional restrictions. 
• 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. 
• Corn inbred lines grown for hybrid seed production may be injured the growing season following an 
application of A23372A. Inbred lines should be thoroughly tested to ensure crop tolerance before 
rotating to seed corn in the growing season following an application of A23372A. 
ROTATIONAL CROPS USE RESTRICTIONS 
 
1. Sugar beets and sunflower require a 30-month rotation interval and a successful field bioassay. Field 
Bioassay Instructions: 
a. A field bioassay is a method of determining if herbicide residues are present in the soil at 
concentrations high enough to adversely affect crop growth. Conduct the field bioassay by 
planting several strips of the desired crop across the field which been previously treated with 
A23372A herbicide. 
i. Plant the crop strips perpendicular to the direction of the product application.

17 
 
ii. Locate the strips so that all the different field conditions are encountered, including 
differences in field terrain, soil texture, organic matter, pH, and drainage. 
iii. If the crop does not show adverse effects including crop injury and/or stand reduction, the 
field can be planted to this crop. 
iv. If injury and/or stand reduction are visible, wait two to four weeks for further herbicide 
degradation to occur and repeat the bioassay. 
v. Only plant crops that show acceptable crop safety in the field bioassay. 
 
6.0 COVER CROPS 
A cover crop can be an important tool for the overall farm cropping system. Cover crops are 
planted for conservation purposes, soil erosion control, soil health improvement, water quality 
improvement and weed management. A cover crop can be a single crop or a combination of 
crops, including grasses and/or broadleaf crops. 
After harvest of a A23372 Herbicide treated crop, planting of a cover crop is allowed provided 
the cover crop is not grazed or fed to livestock nor harvested for food. Terminate the cover 
crop through natural causes such as frost or intentional termination by herbicide application, 
crimping, rolling, tillage or cutting. 
All possible cover crops or cover crop combinations have not been tested for tolerance to this 
product. Before planting the cover crop, determine the level of tolerance for the intended 
cover crops by conducting a field bioassay. Refer to Section 6.1 for instructions on how to 
conduct a field bioassay. 
6.1 Field Bioassay for Cover Crops 
A field bioassay is a method of determining if herbicide residues are present in the soil at 
concentrations high enough to adversely affect crop growth. 
 
Conduct the field bioassay by planting several strips of the desired cover crop across the field 
which has been previously treated with A23372 Herbicide. Plant the cover crop strips 
perpendicular to the direction of the product application. The strips should be located so that 
all the different field conditions are encountered, including differences in field terrain, soil 
texture, organic matter, pH, and drainage. 
 
If the cover crop does not show adverse effects such as crop injury and/or stand reduction, 
the field can be planted to this cover crop. If injury and/or stand reduction are visible, wait 
two to four weeks for further herbicide degradation to occur and repeat the bioassay. 
Alternatively, select a different cover crop and repeat the bioassay. Only plant cover crops 
that show acceptable tolerance in the field bioassay.

18 
 
7.0 RESTRICTIONS AND PRECAUTIONS 
7.1 Use Restrictions 
• DO NOT sell, use or distribute this product in Nassau and Suffolk Counties in the State of 
New York. 
• DO NOT make aerial applications of this product in New York State. 
• DO NOT use this product on soybeans in the State of California. 
• DO NOT apply this product within 50 ft of perennial or intermittent streams and rivers. 
• Aerial applicators must be in enclosed cockpits. 
• DO NOT apply near desirable vegetation and allow adequate distance between target 
area and desirable plants to minimize exposure. Avoid all direct or indirect contact 
with non-target plants. 
• DO NOT apply this product through any type of irrigation system. 
• DO NOT apply this product to frozen ground. 
• DO NOT use flood irrigation to apply or incorporate this product. 
• DO NOT use a sprayer or applicator contaminated with any other materials, or crop 
damage or clogging of the application device may result. 
• 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 applications. 
• DO NOT use low-pressure, high volume hand-wand equipment to apply this product. 
• DO NOT make more than one application during a single year. 
• DO NOT apply more than 2.35 qt of A23372 Herbicide per acre per year (2.04 lb S-
metolachlor, 0.04 lb cloransulam-methyl, 0.38 lb metribuzin). 
 
7.2 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 powdery dry or light sand soils when conditions are favorable for 
wind erosion. Under these conditions, settle the soil surface first by rainfall or 
irrigation. 
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. 
• Activation: A small amount of rainfall or irrigation is required to activate A23372 
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.

19 
 
• Iron Chlorosis: There are isolated geographic areas where soil-induced iron chlorosis 
routinely occurs. In these areas, the severity of iron chlorosis symptoms or other nutrient 
induced crop injury may increase when A23372 is applied. 
7.3 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. 
 
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 
droplets (ASABE S572). 
• 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). 
• If the wind speed is 10 miles per hour or less, applicators must use ½ swath displacement 
upwind at the downwind edge of the field. When the wind speed is between 11-15 miles 
per hour, applicators must use ¾ swath displacement upwind at the downwind edge of the 
field. 
• Do not apply when wind speeds exceed 15 mph at the application site. If the wind speed 
is greater than 10 mph, the boom length must be 65% or less of the wingspan for fixed 
wing aircraft and 75% or less of the rotor diameter for helicopters. Otherwise, the boom 
length must be 75% or less of the wingspan for fixed-wing aircraft and 90% or less of the 
rotor diameter for helicopters. 
• Do not apply during temperature inversions. 
 
 
7.3.1 Spray Drift Advisories 
 
THE APPLICATOR IS RESPONSIBLE FOR AVOIDING OFF-SITE SPRAY DRIFT. BE 
AWARE OF NEARBY NON-TARGET SITES AND ENVIRONMENTAL CONDITIONS.

20 
 
7.3.2 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. 
7.3.3 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. 
7.3.4 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. 
7.3.5 Boom Height - Ground Boom 
• For ground equipment, the boom should remain level with the crop and have minimal 
bounce. 
7.3.6 Boom Height - Aircraft 
• Higher release heights increase the potential for spray drift. 
7.3.7 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. 
7.3.8 Temperature and Humidity 
• When making applications in hot and dry conditions, use larger droplets to reduce effects 
of evaporation
 
7.3.9 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.

21 
 
• 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. 
7.3.10 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. 
7.3.11 Sensitive Areas 
• Only apply A23372 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). 
7.3.12 Handheld Technology Applications 
• Take precautions to minimize spray drift. 
 
8.0 WEEDS CONTROLLED OR PARTIALLY CONTROLLED BY 
A23372 HERBICIDE 
8.1 Weeds Controlled by A23372 Herbicide in Soybeans 
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.
 
Common Name Scientific Name 
Weed 
Type 
Control (C) or Partial 
Control (PC) 
Barnyardgrass Echinochloa crus-galli (L.) P. Beauv. Grass C 
Bluegrass, annual Poa annua Grass C 
Crabgrass, large Digitaria sanguinalis Grass C 
Crabgrass, smooth Digitaria ischaemum Grass C 
Crowfootgrass Dactyloctenium aegyptium Grass C 
Cupgrass, Prairie Eriochloa contracta Grass C 
Cupgrass, Southwestern Eriochloa acuminate Grass C 
Cupgrass, Woolly Eriochloa villosa Grass PC 
Foxtail, bristly Setaria verticillate Grass C 
Foxtail, giant Setaria faberi Grass C

22 
 
Common Name Scientific Name 
Weed 
Type 
Control (C) or Partial 
Control (PC) 
Foxtail, green Setaria viridis Grass C 
Foxtail, millet Setaria italica Grass C 
Foxtail, yellow Setaria pumila Grass C 
Goosegrass Eleusine indica Grass C 
Johnsongrass (seedling) Sorghum halepense Grass PC 
Junglerice Echinochloa colona Grass C 
Millet, wild—proso Panicum miliaceum Grass PC 
Panicum, fall Panicum dichotomiflorum Grass C 
Panicum, Texas Urocholoa texana Grass PC 
Rice, red Oryza sative Grass C 
Ryegrass, Italian Lolium perenne Grass C 
Sanbur, field Cenchrus spinifex Grass PC 
Sandbur, Southern Cenchrus echinatus Grass PC 
Shattercane Sorghum bicolor Grass PC 
Signalgrass, broadleaf Urochloa platyphylla Grass C 
Witchgrass Panicum capillare Grass C 
 
Amaranth, Palmer Amaranthus palmeri Broadleaf C 
Amaranth, Powell Amaranthus powellii Broadleaf C 
Amaranth, spiny Amaranthus spinosus Broadleaf C 
Amaranth, slender Amaranthus viridis Broadleaf C 
Amaranth, spleen Amaranthus dubius Broadleaf C 
Anoda, spurred Anoda cristata Broadleaf C 
Beggarweed, Florida Desmodium tortuosum Broadleaf C 
Carpetweed Mollugo verticillata Broadleaf C 
Chickweed, common Stellaria media Broadleaf C 
Copperleaf, hophornbeam Acalypha ostryifolia Broadleaf C 
Cocklebur, common Xanthium strumarium Broadleaf C 
Dayflower, Benghal Commelina benghalensis Broadleaf C 
Eclipta Eclipta prostrata Broadleaf PC 
Galinsoga, hairy Galinsoga quadriradiata Broadleaf C 
Galinsoga, smallflower Galinsoga parviflora Broadleaf C 
Galinsoga species Galinsoga spp. C 
Henbit Lamium amplexicaule Broadleaf C 
Horseweed (marestail) Erigeron canadensis Broadleaf C 
Jimsonweed Datura stramonium Broadleaf C 
Knotweed species Polygonum spp. Broadleaf C 
Kochia Kochia scoparia 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

23 
 
Common Name Scientific Name 
Weed 
Type 
Control (C) or Partial 
Control (PC) 
Morningglory, entireleaf Ipomoea heeracea Broadleaf C 
Morningglory, ivyleaf Ipomoea hederacea Broadleaf C 
Morningglory, Palmleaf Ipomoea wrightii Broadleaf C 
Morningglory, pitted Ipomoea lacunosa Broadleaf C 
Morningglory, red Ipomoea coccinea Broadleaf C 
Morningglory, scarlet Ipomoea, hederifolia Broadleaf C 
Morningglory, small flower Jacquemontia tamnifolia Broadleaf C 
Morningglory, tall Ipomoea purpurea Broadleaf C 
Mustard species Brassica spp. Broadleaf C 
Mustard, wild Sinapis arvensis Broadleaf C 
Nightshade, Eastern black Solanum ptychanthum Broadleaf C 
Nightshade, black Solanum americanum Broadleaf C 
Nightshade, hairy Solanum physalifolium Broadleaf C 
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 scarbra Broadleaf C 
Ragweed, common Ambrosia artemisiifolia Broadleaf C 
Ragweed, giant Ambrosia trifida Broadleaf C 
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 
Sida, arrowleaf Sida rhombifolia Broadleaf C 
Smartweed, Pennsylvania Persicaria pensylvanica Broadleaf C 
Spurge, spotted Euphorbia maculata Broadleaf C 
Starbur, bristly Acanthospermum hispidum Broadleaf C 
Sunflower, common Helianthus annuus Broadleaf C 
Thistle, Russian Salsola tragus Broadleaf C 
Velvetleaf Abutilon theophrasti Broadleaf C 
Waterhemp, common Amaranthus rudis Broadleaf C 
Waterhemp, tall Amaranthus tuberculatus Broadleaf C 
 
Nutsedge, yellow Cyperus esculentus Sedge C 
Procedures that might improve control of weeds listed above: 
• Thoroughly till soil to destroy germinating and emerged weeds or use a suitable burndown herbicide. 
• If A23372 Herbicide is to be used preemergence, apply at planting or immediately after planting.

24 
 
Common Name Scientific Name 
Weed 
Type 
Control (C) or Partial 
Control (PC) 
• 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. 
 
9.0 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 
• Silty clay loam soils are transitional soils and may be classified as medium -textured soils in some 
regions of the U.S. When using A23372 Herbicide, treat this soil as “fine-textured”. 
 
Foundation Program for Planned 2-Pass Weed Control Systems 
A23372 herbicide may be applied preplant incorporated or preemergence on all soils to 
reduce competition from the weeds listed in Section 8.0 when followed by a planned 
postemergence weed control treatment. Permitted postemergence treatments include any 
product or combination of products labeled to control the specific weeds remaining in the field 
including glyphosate, glufosinate, dicamba, or 2,4-D brands. Follow all application directions 
for A23372 herbicide used alone, either preplant incorporated or preemergence. For the 
postemergence herbicide application, consult the selected postemergence herbicide 
manufacturer’s label for weeds controlled, weed size, application rate, additional use 
directions, precautions, and limitations before use.

25 
 
9.1 Soybeans (except California) 
9.1.1 Preplant Surface, Preplant Incorporated, or Preemergence 
Applications 
Crops (including cultivars, varieties, and/or hybrids of these) 
Soybean 
Application Timing Rate Use Directions 
Preplant Surface 
 
 
Preplant Incorporated 
 
 
Preemergence 
For all applications use the 
rate for the specific soil texture 
as follows: 
 
Coarse Soil: 
1.2-1.50 qt/A 
 
Medium Soil: 
1.50-2.10 qt/A 
 
Fine Soil: 
1.75-2.35 qt/A 
 
Please see “Use 
Precautions” section for 
additional information 
regarding applications on 
coarse soils. 
Dry weather following preplant or 
preemergence application of A23372 
herbicide 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 
reaches30 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: 
A23372 herbicide may be applied up 
to 30-45 days before planting. 
 
For applications 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 may 
be added to the tank mixes (see 
Burndown Weed Control information 
section 9.1.2 below). Refer to the 
tank mix product labels for specific 
rates and use directions. 
 
Preplant Incorporated Application: 
Apply within 14 days of planting. 
 
Apply to the soil and incorporate into 
the top 2 inches of soil using an 
implement capable of providing 
uniform incorporation. 
 
Use a preplant incorporated 
application if furrow irrigation is used 
or when a period of dry weather after 
application is expected. 
 
If crop will be planted on beds, apply 
and incorporate after bed formation, 
unless specified otherwise.

26 
 
 
Preemergence Application: 
Apply during planting or after planting 
but before crop emergence. 
 Tank Mix or Sequential Application Options: 
• Refer to Section 9.1.2 for tank-mix options. 
Resistance Management: 
• Refer to Section 3.1. 
Precautions: 
• For preplant surface application, to the extent possible, avoid moving treated soil out of the row or 
moving untreated soil to the surface during planting or weed control will be diminished. 
• Injury to soybean may occur when this product is used under the following conditions: 
o When soils have a calcareious 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 A23372 herbicide) before 
using A23372 herbicide. 
o When applied in conjunction with soil-applied organophosphate pesticides. 
o Uneven application or improper incorporation of A23372 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 specified on this label. 
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 A23372 herbicide is 
applied preemergence. 
o Where high soil levels of atrazine are present. 
o When using poor quality soybean seed. 
• Application of A23372 herbicide to emerged soybeans will result in crop injury. 
• Use on coarse textured soils, such as loamy sand or sand, with less than 1% organic matter m 
result in crop injury. 
• For preplant incorporated application, use the lower rate for the soil texture and organic matter. 
USE RESTRICTIONS 
1) Refer to Section 7.1 for additional product use restrictions. 
1) Maximum Single Application Rate: 2.35 qt/A (2.04 lb S-metolachlor, 0.04 lb cloransulam-
methyl, 0.38 lb metribuzin) 
2) DO NOT make more than one application of this product per year. 
3) Maximum Annual Rate: 2.35 qt/A/year 
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. 
c. DO NOT exceed 0.04 lb ai/A/year of cloransulam-methyl containing products. 
4) DO NOT apply to frozen ground. 
5) DO NOT graze, feed forage from treated areas or harvest for hay for 40 days following application. 
6) Preharvest Interval (PHI): 75 days

27 
 
9.1.2 Tank-Mix Combinations for Soybeans 
Application Tank-Mix Brands Use Directions 
Burndown Weed 
Control 
2,4-D brands 
Dicamba brands 
Paraquat brands 
Glyphosate brands 
Glufosinate brands 
 
Apply before, during or after planting, but before 
soybeans emerges. 
 
Add a non-ionic surfactant or crop oil concentrate (or 
equivalent). 
Precautions: 
• A23372 herbicide in any tank mixture for soybean may be applied in water or fluid fertilizer before 
soybeans emerge. 
• Do not apply A23372 herbicide or tank mixtures that contain A23372 herbicide after soybean 
emergence. 
TANK-MIX USE RESTRICTIONS 
1) All application rates, precautions, and use restrictions cited in Section 9.1.1 for A23372 herbicide 
solo apply to tank-mixes with A23372 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. 
 
10.0 STORAGE AND DISPOSAL 
 
STORAGE AND DISPOSAL 
 
Do not contaminate water, food, or feed, by storage or disposal. 
 
Pesticide Storage 
Store above 32°F in original containers only. If product freezes, return to room temperature 
and agitate to reconstitute. Keep container closed when not in use. Do not store near food 
or feed. In case of spill or leak on floor or paved surfaces, soak up with sand, earth or 
synthetic absorbent. Remove to chemical waste area. 
 
Pesticide Disposal 
Pesticide wastes are acutely hazardous. Improper disposal of excess pesticide, spray 
mixture or rinsate is a violation of Federal Law. If these wastes cannot be disposed of by use 
according to label instructions, contact your State Pesticide or Environmental Control Agency, 
or the Hazardous Waste Representative at the nearest EPA Regional Office for guidance.

28 
 
Container Handling (less than or equal to 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 and drain for 10 seconds after the flow begins to 
drip. Fill the container ¼ 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 offer for 
recycling if available or puncture and dispose of in a sanitary landfill, or by incineration, 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 
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 offer for recycling if available or puncture and 
dispose of in a sanitary landfill, or by incineration, 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 percent 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 incineration, or by other procedures approved by state and local authorities. 
 
CONTAINER IS NOT SAFE FOR FOOD, FEED, OR DRINKING WATER.

29 
 
11.0 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. 
 
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.

30 
 
Tendovo®, and the Syngenta logo are Trademarks of a Syngenta Group Company 
 
Viton® is a trademark of Corteva Agriscience 
 
Agsorb® is a trademark of Oil-Dri Corporation 
 
Clorox® is a trademark of The Clorox Company 
 
Celatom® is a trademark of Eagle-Picher Minerals, Inc. 
 
©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 
 
A23372 Herbicide NEW-E NOV2020-CL - di – 12/15/21 
000100-0XXXX.20201119E.A23372_Herbicide.NEW.NOV2020-CL.pdf