crop-chem-docs/corpus/epa_ppls/100-1675.md

# A23011 Herbicide

- EPA Reg No: **100-1675**
- Registrant: SYNGENTA CROP PROTECTION, LLC
- Signal word: Caution
- Active ingredients: Bicyclopyrone (0.94%); S-Metolachlor (19.7%); Mesotrione (1.97%); Glyphosate (19.7%)
- Label accepted: 2025-01-16
- Source PDF: https://www3.epa.gov/pesticides/chem_search/ppls/000100-01675-20250116.pdf

---
January 16, 2025
SENT BY EMAIL
Amanda M. Foderaro
amanda.m.foderaro@syngenta.com
SYNGENTA CROP PROTECTION, LLC
Subject: Labeling Notification per Pesticide Registration Notice (PRN) 98-10 - Add a marketing
statement
Product Name: A23011 Herbicide
Admin Number: 100-1675
EPA Receipt Date: 10/21/2024
Action Case Number: 00634332
Dear Amanda M. Foderaro:
The U.S. Environmental Protection Agency is in receipt of your application for notification under Pesticide
Registration Notice 98-10 for the above referenced product. The EPA has conducted a review of this request
for its applicability under PRN 98-10 and finds that the action requested falls within the scope of PRN 98-10.
The labeling submitted with this application has been stamped "Notification" and will be placed in our records.
Should you wish to add/retain a reference to your company’s website on your label, then please be aware that
the website becomes labeling under the Federal Insecticide, Fungicide, and Rodenticide Act and is subject to
review by the EPA. If the website is false or misleading, the product will be considered to be misbranded and
sale or distribution of the product is unlawful under FIFRA section 12(a)(1)(E). 40 CFR § 156.10(a)(5) lists
examples of statements the 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 EPA find or if it is brought to
our attention that a website contains statements or claims substantially differing from statements or claims
made in connection with obtaining a FIFRA section 3 registration, the website will be referred to the EPA’s
Office of Enforcement and Compliance Assurance.
 If you have questions, please contact Jenna Wiegand via email at wiegand.jenna@epa.gov.
Sincerely,
Kable Bo Davis, Senior Advisor 
HB, RD
Office of Pesticide Programs
Kable Bo Davis

1 
 
Sale, use and distribution of this product in Nassau and Suffolk Counties in the State 
of New York is prohibited. 
BICYCLOPYRONE GROUP 27 HERBICIDE 
GLYPHOSATE GROUP 9 HERBICIDE 
MESOTRIONE GROUP 27 HERBICIDE 
S-METOLACHLOR GROUP 15 HERBICIDE 
 
A23011 HERBICIDE 
 
[ABN: Acuron® GT Herbicide] 
 
A Postemergence Herbicide for Weed Control in Glyphosate-Resistant Field Corn 
 
Active Ingredient: 
S-metolachlor1: ...................................................................................................... 19.70% 
Glyphosate2: .......................................................................................................... 19.70% 
Mesotrione3: ............................................................................................................ 1.97% 
Bicyclopyrone4: ........................................................................................................ 0.94% 
Other Ingredients: 57.69% 
Total: 100.0% 
 
1CAS No. 87392-12-9 
2CAS No. 1071-83-6 
3CAS No. 104206-82-8 
4CAS No. 352010-68-5 
 
A23011 Herbicide is formulated as a ZC formulation and contains 2.00 lb S-metolachlor, 2.00 
lb glyphosate acid, 0.200 lb mesotrione and 0.095 lb bicyclopyrone per gallon. 
 
KEEP OUT OF REACH OF CHILDREN 
 
CAUTION/PRECAUCIÓN 
 
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]. 
 
DoseLock™ Formulation Technology 
 
EPA Reg. No. 100-1675 
EPA Est. 
 
__________ 
Net Contents 
 
[Batch Code: _____ ] (For nonrefillables only.) 
100-1675
01/16/2025

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 User Safety Recommendations 
2.5 Environmental Hazards 
2.5.1 Groundwater Advisory 
2.5.2 Surface Water Advisory 
2.5.3 Non-Target Organism Advisory 
2.5.4 Reporting Ecological Incidents 
2.5.5 Mixing and Loading Restrictions 
2.6 Physical or Chemical Hazards 
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 
4.2 Application Equipment 
4.3 Application Volume and Spray Coverage 
4.4 Mixing Directions 
4.4.1 A23011 Herbicide Alone 
4.4.2 Tank-Mix Precautions 
4.4.3 Tank-Mix Compatibility 
4.4.4 A23011 Herbicide in Tank Mixtures 
4.4.5 Spray Additives 
4.5 Sprayer Cleanout 
5.0 REPLANT AND ROTATIONAL CROPS 
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 Ground Boom Applications

3 
 
7.4 Spray Drift Advisories 
7.4.1 Importance of Droplet Size 
7.4.2 Controlling Droplet Size - Ground Boom 
7.4.3 Boom Height - Ground Boom 
7.4.4 Shielded Sprayers 
7.4.5 Temperature and Humidity 
7.4.6 Temperature Inversions 
7.4.7 Wind 
7.4.8 Handheld Technology Applications 
8.0 WEEDS CONTROLLED BY A23011 HERBICIDE 
8.1 Weeds Controlled with Postemergence Applications of A23011 Herbicide 
9.0 CROP USE DIRECTIONS 
9.1 Corn 
9.1.1 Postemergence Application 
9.1.2 Tank-Mix Combinations 
10.0 STORAGE AND DISPOSAL 
11.0 CONDITIONS OF SALE AND LIMITATION OF WARRANTY AND LIABILITY 
12.0 APPENDIX 
12.1 A23011 Herbicide Tank-Mix Table

4 
 
 
1.0 FIRST AID 
FIRST AID 
If swallowed • Call a poison control center or doctor immediately for treatment 
advice. 
• Have person sip a glass of water if able to swallow. 
• Do not induce vomiting unless told to do so by the poison control 
center or doctor. 
• 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 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 inhaled • Move person to fresh air. 
• If person is not breathing, call 911 or an ambulance, and 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/PRECAUCIÓN 
Harmful if swallowed. Harmful if absorbed through skin. Causes moderate eye irritation. 
Avoid contact with skin, eyes or clothing. This product may cause skin sensitization reactions 
in some people.

5 
 
2.2 Personal Protective Equipment (PPE) 
Applicators and other handlers must wear: 
• Coveralls over short-sleeved shirt and short pants 
• Chemical-resistant gloves made of any waterproof material 
• Chemical-resistant footwear plus socks 
• Chemical-resistant headgear for overhead exposure 
• Chemical-resistant apron when cleaning equipment, mixing, or loading 
 
2.3 User Safety Requirements 
Follow manufacturer's instructions for cleaning and/or maintaining PPE. If there are no such 
instructions for washables, clean with detergent and hot water. Keep and wash PPE 
separately from other laundry. 
 
2.4 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. 
 
2.5 Environmental Hazards 
For terrestrial uses, do not apply directly to water, or to areas where surface water is present, 
or to intertidal areas below the mean high-water mark. Do not contaminate water when 
disposing of equipment washwater or rinsate. 
 
2.5.1 Groundwater Advisory 
The active ingredients S-metolachlor, mesotrione and bicyclopyrone are 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.

6 
 
 
2.5.2 Surface Water Advisory 
This product may impact surface water quality due to runoff of rain water and through ground 
spray drift. This is especially true for poorly draining soils and soils with shallow groundwater. 
This product is classified as having high potential for reaching surface water via runoff for 
several months or more after application. 
A level, well maintained vegetative buffer strip between areas to which this product is applied 
and surface water features such as ponds, streams, and springs will reduce the potential 
loading of S-metolachlor and mesotrione from runoff water and sediment. Runoff of this 
product will be reduced by avoiding applications when rainfall is forecasted to occur within 48 
hours. 
 
2.5.3 Non-Target Organism Advisory 
This product is toxic to plants and may adversely impact the forage 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. 
2.5.4 Reporting Ecological Incidents 
To report ecological incidents, including mortality, injury, or harm to plants and animals, call 
1-800-888-8372. 
 
2.5.5 Mixing and Loading Restrictions 
Take care when using this product to prevent back siphoning into wells, spills, or improper 
disposal of excess pesticide, spray mixtures, or rinsates. Check valves or anti-siphoning 
devices must be used on mixing equipment. This product may not be mixed/loaded or used 
within 50 ft of 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 
washwater, and rainwater 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.

7 
 
 
2.6 Physical or Chemical Hazards 
Do not mix or allow contact with oxidizing agents, as a hazardous chemical reaction may 
occur. 
 
Do not use or store near heat or open flame. Do not store, mix, or apply this product or spray 
solutions of this product in unlined steel containers (except stainless steel), galvanized steel 
containers, or sprayer tanks. This product or spray solutions of this product will react with 
these containers and tanks and produce hydrogen gas which may form a highly combustible 
mixture. This gas mixture could flash or explode, causing serious personal injury, if ignited by 
spark, open flame, lighted cigarette, welder torch, or other ignition source. Mix, store and 
apply spray solutions of this product using only stainless steel, fiberglass, plastic, or plastic-
lined steel containers. 
 
DIRECTIONS FOR USE 
It is a violation of Federal Law to use this product in a manner inconsistent with its labeling. 
 
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. 
 
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 THE DIRECTIONS FOR USE AND PRECAUTIONS ON THIS 
LABEL MAY RESULT IN POOR WEED CONTROL, CROP INJURY, OR ILLEGAL 
RESIDUES. 
 
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 (REI). The requirements in this box only

8 
 
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 24 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: 
 
• Coveralls over short-sleeved shirt and short pants 
• Chemical-resistant gloves made of any waterproof material 
• Chemical-resistant footwear plus socks 
• Chemical-resistant headgear for overhead exposure 
 
3.0 PRODUCT INFORMATION 
A23011 Herbicide is a systemic, postemergence herbicide for the control of weeds in 
glyphosate-resistant field corn. A23011 Herbicide is a combination of the herbicides S-
metolachlor, glyphosate, mesotrione and bicyclopyrone. A23011 Herbicide is specifically 
formulated for postemergence use in glyphosate-resistant field corn. This product does not 
contain the safener benoxacor, therefore, A23011 Herbicide is not recommended for preplant 
or preemergence applications. 
Following a postemergence application of A23011 Herbicide, susceptible weeds take up the 
herbicide through the treated foliage and cease growth soon after application, but complete 
death of weeds may take up to 2 weeks. Also, A23011 Herbicide is absorbed by the roots 
and shoots of weeds, prior to emergence in the soil, which provides approximately 3-4 weeks 
of residual control of newly emerging susceptible weeds, with a minimum activating rainfall or 
overhead irrigation. 
Glyphosate works by targeting an enzyme that is essential for plant growth. 
3.1 Weed Resistance Management 
BICYCLOPYRONE GROUP 27 HERBICIDE 
GLYPHOSATE GROUP 9 HERBICIDE 
MESOTRIONE GROUP 27 HERBICIDE 
S-METOLACHLOR GROUP 15 HERBICIDE 
 
Naturally occurring biotypes of certain weed species with resistance to triazines, ALS, PPO, 
Glycine (glyphosate) and HPPD-inhibiting herbicides are known to exist. If biotypes of weeds 
resistant to triazines, ALS, PPO and glycine inhibitors are present in the field, this herbicide 
should control them if they are listed in Section 8.0.

9 
 
 
To reduce the risk of weeds developing resistance to HPPD-inhibiting herbicides, implement 
a program including both preemergence and postemergence herbicides that provide effective 
control of all weeds using multiple modes of action. This includes scouting fields before 
application to ensure the herbicide will be appropriate for the weeds present. Scout fields 
and eliminate weed escapes. If suspected weed resistance is observed against a particular 
weed species contact your Syngenta or retailer representative or call Syngenta Customer 
Service (1-800-334-9481). Lack of weed control is not necessarily an indicator of weed 
resistance. 
 
Consider weed resistance management strategies that include two or more modes of action 
where a minimum of two modes of action are effective at controlling the target weed when 
either are applied alone. 
 
Read and follow all label directions. 
 
A23011 Herbicide contains four herbicide active ingredients and three modes of action and 
can be an effective component of a weed resistance management strategy. 
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.

10 
 
Do not overuse the technology 
• Do not use 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 the 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 
o Failure to control a weed species normally controlled by the herbicide at the dose 
applied, especially if control is achieved on adjacent weeds; 
o A spreading patch of non-controlled plants of a particular weed species; and 
o 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(a) (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 A23011 Herbicide alone or in tank mixtures are permitted by ground only, 
as specified below and in Section 9.0. Apply as a postemergence treatment for weed control 
in glyphosate-resistant field corn only. 
4.2 Application Equipment 
• Configure spray equipment to provide accurate and uniform coverage of the target area 
and minimize potential for spray drift.

11 
 
• To ensure accuracy, calibrate sprayer before each use. 
• For information on spray equipment and calibration, consult spray equipment 
manufacturers and/or state recommendations. 
• All application equipment must be properly maintained. 
• For ground applications: 
o Use spray nozzles that provide medium to coarse droplet size to provide good 
coverage and avoid drift. 
o Do not use flood jet nozzles or controlled droplet application equipment for 
applications of A23011 Herbicide. 
o Nozzles may be angled forward or backward 45° to enhance penetration of the crop 
and provide better coverage. 
o Ensure that all in-line strainer and nozzle screens in the sprayer are 50-mesh or 
coarser. 
o Use a pump that can maintain a pressure of at least 35-40 psi at the nozzles (check 
nozzle manufacturer’s instructions) and provide proper agitation within the tank to 
keep the product dispersed. 
o Lower pressures may be used with extended range or drift reduction nozzles. 
 
4.3 Application Volume and Spray Coverage 
• Good weed coverage is essential for optimum weed control. 
• Ensure that spray nozzles are uniformly spaced, the same size and type, and provide 
accurate and uniform application. 
• Apply A23011 Herbicide in a spray volume of 10-30 gal/A. 
• When weed foliage is dense, use a minimum of 15 gal/A. 
• Always ensure that agitation is maintained until spraying is completed, even if spraying is 
stopped for brief periods. 
• If the agitation is stopped for more than 5 minutes, resuspend the spray solution by 
running on full agitation prior to spraying. 
 
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. Keep product container tightly closed when not in use. 
4. Agitate the spray solution before and during application. 
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. 
 
4.4.1 A23011 Herbicide Alone 
1. Fill tank ½ full of clean water and start agitation. 
2. Add spray-grade ammonium sulfate (AMS). 
3. Add nonionic surfactant (NIS). 
4. Add A23011 Herbicide. 
5. Fill tank with water to the desired level.

12 
 
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 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. 
• Tank-mixes of A23011 Herbicide with other pesticides, fertilizers, or any other additives 
not specifically labelled for use with A23011 Herbicide may result in tank-mix 
incompatibility or unsatisfactory performance. In such cases, always check tank-mix 
compatibility by conducting a jar test according to guidance in Section 4.4.3 before actual 
tank mixing. 
 
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 as liquid fertilizer to the jar. 
• Next, add the appropriate amount of pesticide(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 to 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 
label 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 A23011 Herbicide in Tank Mixtures 
1. When adding products to the spray tank, make sure each product is added separately and 
thoroughly agitated before adding the next product. 
2. If using an induction tank, add only one product at a time. For example, add water, then 
add atrazine to the induction tank and transfer to spray tank, rinse induction tank with 
water, then add A23011 Herbicide. 
3. Fill tank ½ full of clean water and start agitation. 
4. Add ammonium sulfate (AMS). 
5. Add nonionic surfactant (NIS). 
6. If applicable, add any water-dispersible or water-soluble dry formulated type product(s). 
7. If applicable, add atrazine – make sure atrazine is fully dispersed before other products 
are added to the mix. 
8. If applicable, add any water soluble liquid formulated type product(s). 
9. Add A23011 Herbicide.

13 
 
10. If applicable, add EC products (e.g. insecticides) last. Be aware that adding any EC type 
product will increase the risk for crop injury. 
11. Fill tank with water to the desired level. 
 
4.4.5 Spray Additives 
When an adjuvant is to be used with this product, the use of an adjuvant that meets the 
standards of the Chemical Producers and Distributors Association (CPDA) adjuvant 
certification program is recommended. 
For postemergence applications to glyphosate-resistant field corn 
• Add a nonionic surfactant (NIS) at 1-2 qt/100 gallons of water (0.25-0.5% v/v) to the spray 
solution. 
• Only use the higher rate of NIS when weeds are growing under stress conditions (e.g. 
cool temperatures, dry weather, etc.). 
• In addition to NIS add spray grade ammonium sulfate (AMS) at 8.5-17 lb/100 gal of water. 
• When using liquid AMS products, use a rate that delivers an AMS equivalent of 8.5-17 
lb/100 gal of water. 
• The use of compatibility agents, drift retardants, crop oil concentrates (COC) or high 
surfactant oil concentrates (HSOC) additives may result in temporary crop injury. In 
severe cases, injury can persist and result in crop stunting. 
• Do not use methylated seed oil (MSO) or urea ammonium nitrate (UAN) with A23011 
Herbicide, or when A23011 Herbicide is applied as a postemergence tank mixture with 
other products, unless directed for a specific tank-mix on this label or as part of a 
supplemental A23011 Herbicide label. 
 
4.5 Sprayer Cleanout 
Special attention must be given to cleaning equipment before spraying a crop other than 
glyphosate-resistant field corn. Mix only as much spray solution as needed. 
1. Flush tank, hoses, boom, and nozzles with clean water. 
2. Prepare a cleaning solution of 1 gal of household ammonia per 25 gal of water. Many 
commercial spray tank cleaners may be used. 
3. 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. If a pressure 
washer is not available, 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 recirculate the cleaning solution for at 
least 15 minutes. Remove all visible deposits from the spraying system. 
4. Flush hoses, spray lines, and nozzles for at least 1 minute with the cleaning solution. 
5. Dispose of rinsate from steps 1 to 4 in an appropriate manner. 
6. Repeat steps 2 to 5. 
7. Remove nozzles, screens, and strainers and clean separately in the ammonia solution 
after completing the above procedures.

14 
 
8. Rinse the complete spraying system with clean water. 
 
5.0 REPLANT AND ROTATIONAL CROPS 
When A23011 Herbicide is applied as directed on this label, follow the crop replant/rotational 
intervals shown below. If A23011 Herbicide is tank mixed with other products, follow the 
most restrictive product’s crop rotation interval. The replant/rotational interval is the time 
between the last application of A23011 Herbicide and planting of the replant/rotational crop. 
Crop Replant/Rotational Interval 
Field corn 
Seed corn 
Popcorn 
Sweet corn 
Anytime 
Small grains including wheat, barley, rye and oats 4 1/2 months 
Alfalfa (see rotational crop restrictions below) 
Cotton 
Peanuts 
Potato 
Rice 
Soybeans 
Sorghum (all types) 
10 months 
All other rotational crops 18 months 
ROTATIONAL CROP USE PRECAUTIONS 
If applied after June 30th, rotating to crops other than corn (all types) may result in crop injury. 
ROTATIONAL CROP USE RESTRICTIONS 
• The 10-month rotation to alfalfa applies only if the soil pH is 6.0 or greater and a minimum of 18” 
of rainfall or equivalent irrigation has been received between application and planting of alfalfa . 
Otherwise the alfalfa rotational interval is 18 months. 
 
 
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 an A23011 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.

15 
 
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 A23011 Herbicide. Plant the cover crop strips 
perpendicular to the direction of the product application. Locate the strips 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. 
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 apply A23011 Herbicide through any type of irrigation system. 
• DO NOT apply A23011 Herbicide with suspension fertilizers. 
• DO NOT apply A23011 Herbicide to ground that has been or will be treated with another 
bicyclopyrone-containing product in the same season. 
• DO NOT use aerial application to apply A23011 Herbicide. 
 
7.2 Use Precautions 
• Applications should not be made 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 soils when conditions are favorable for wind 
erosion. Under these conditions, ensure that the soil surface is settled by rainfall or 
irrigation first. 
o Avoid making applications to impervious substrates such as paved or highly 
compacted surfaces. 
• Avoid the use of tailwater from the first flood or furrow irrigation of treated fields to treat non-
target crops unless at least ½ inch of rainfall has occurred between application and the first 
irrigation. 
• When weeds are stressed due to drought, heat, lack of fertility, flooding, or prolonged cool 
temperatures, control can be reduced or delayed since the weeds are not actively growing. 
Weed escapes or re -growth may occur when application is made under prolonged stress 
conditions. Optimum weed control will be obtained if an application of A23011 Herbicide is 
made following label directions when weeds are actively growing.

16 
 
• Avoid drift onto adjacent crops. Severe damage or destruction may be caused by contact 
of A23011 Herbicide to any vegetation (including leaves, green stems, exposed non-woody 
roots, or fruit) of crops, trees, and other desirable plants to which treatment is not intended. 
• A23011 Herbicide may be applied with Besiege®, Warrior® brands or other solo pyrethroid 
insecticides. 
• Circulate before dispensing. 
• To avoid contamination, ensure that the spray system is thoroughly cleaned with water and 
a commercial tank cleaner before and after each use. 
 
7.3 Spray Drift Management 
 
7.3.1 Ground Boom Applications 
MANDATORY SPRAY DRIFT 
Ground Boom Applications: 
• Do not release spray at a height greater than 3 ft above the ground or crop canopy. 
• Applicators are required to select the nozzles and pressure that deliver medium or coarser 
droplet size in accordance with American Society of Agricultural & Biological Engineers 
Standard 572 (ASABE S572.1). 
• Do not apply when wind speeds exceed 15 mph at the application site. 
• Do not apply during temperature inversions. 
 
7.4 Spray Drift Advisories 
THE APPLICATOR IS RESPONSIBLE FOR AVOIDING OFF SITE SPRAY DRIFT. 
BE AWARE OF NEARBY NON-TARGET SITES AND ENVIROMENTAL CONDITIONS. 
7.4.1 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. 
 
7.4.2 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. 
 
7.4.3 Boom Height - Ground Boom 
• For ground equipment, the boom should remain level with the crop and have minimal

17 
 
bounce. 
 
 
7.4.4 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. 
 
7.4.5 Temperature and Humidity 
• When making applications in hot and dry conditions, use larger droplets to reduce effects 
of evaporation. 
 
7.4.6 Temperature Inversions 
• Drift potential is high during a temperature inversion. 
• Temperature inversions are characterized by increasing temperature with altitude and are 
common on nights with limited cloud cover and light to no wind. 
• The presence of an inversion can be indicated by ground fog or by the movement of 
smoke from a ground source or an aircraft smoke generator. 
• Smoke that layers and moves laterally in a concentrated cloud (under low wind 
conditions) indicates an inversion, while smoke that moves upward and rapidly dissipates 
indicates good vertical air mixing. 
• Avoid applications during temperature inversions. 
 
7.4.7 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. 
• 
 
7.4.8 Handheld Technology Applications 
• Take precautions to minimize drift.

18 
 
8.0 WEEDS CONTROLLED BY A23011 HERBICIDE 
For best results, apply A23011 Herbicide postemergence to actively growing weeds. For the 
best protection of the corn crop’s yield potential, apply A23011 Herbicide postemergence 
before the weeds exceed 4 inches in height, length, or diameter. A23011 Herbicide will 
provide 3-4 weeks of residual control of newly emerging susceptible weeds through root and 
shoot absorption. 
8.1 Weeds Controlled with Postemergence Applications of A23011 
Herbicide 
Common Name 
Weed Type 
 
B = Broadleaf 
G = Grass 
S = Sedge 
Scientific Name 
A23011 Herbicide at 3.75 pt/A 
plus NIS plus AMS 
 
C = Control 
 
Apply to weeds less than 4” in 
height, length or diameter 
Amaranth, Palmer (See 
precautions section below) 
B Amaranthus palmeri C 
Amaranth, Powell B Amaranthus powellii C 
Amaranth, spiny (See 
precautions section below) 
B Amaranthus spinosus C 
Anoda, spurred B Anoda cristata C 
Atriplex prostrata B Atriplex calotheca C 
Barnyardgrass G Echinochloa crus-galli C 
Beggarweed, Florida B Desmodium tortuosum C 
Bluegrass, annual G Poa annua C 
Brome, downy G Bromus tectorum C 
Buckwheat, wild (See 
precautions section below) 
B Fallapia convolvulus C 
Buffalobur B Solanum rostratium C 
Burcucumber (See precautions 
section below) 
B Sicyos angulatus C 
Carpetweed B Mollugo verticillata C 
Cheat G Bromus secalinus C 
Chickweed, common B Stellaria media C 
Chickweed, mouseear B Cerastium fontanum C 
Cocklebur, common B Xanthium strumarium C 
Copperleaf, hophornbeam B Acalypha ostryifolia C 
Corn, volunteer (non-
glyphosate-resistant) (See 
precautions section below) 
G Zea mays 
C 
Crabgrass, large G Digitaria sanguinalis C 
Crabgrass, smooth G Digitaria ischaemum C 
Crotalaria, showy B Crotalaria spectabilis C 
Croton, tropic B Croton glandulosus C 
Crowfootgrass G Dactyloctenium aegyptium C 
Cupgrass, woolly G Eriochloa villosa C 
Dandelion, common B Taraxacum officinale C 
Dock, curly B Rumex crispus C 
Eclipta B Eclipta prostrata C 
Foxtail, bristly G Setaria verticillata C

19 
 
Common Name 
Weed Type 
 
B = Broadleaf 
G = Grass 
S = Sedge 
Scientific Name 
A23011 Herbicide at 3.75 pt/A 
plus NIS plus AMS 
 
C = Control 
 
Apply to weeds less than 4” in 
height, length or diameter 
Foxtail, giant G Setaria faberii C 
Foxtail, green G Setaria viridis C 
Foxtail, yellow G Setaria pumila C 
Galinsoga, smallflower B Galinsoga parviflora C 
Goosegrass G Eleusine indica C 
Groundcherry, smooth B Physalis longifolia C 
Groundsel, common B Senecio vulgaris C 
Hemp (See precautions section 
below) 
B Cannabis sativa C 
Henbit B Lamium amplexicaule C 
Horseweed (marestail) (See 
precautions section below) 
B Erigeron canadensis C 
Jimsonweed B Datura stramonium C 
Johnsongrass B Sorghum halepense C 
Knotweed, prostrate B Polygonum aviculare C 
Kochia (See precautions section 
below) 
B Bassia scoparia C 
Lambsquarters, common B Chenopodium album C 
Mallow, Venice B Hibiscus trionum C 
Marshelder B Cyclachaene xanthiifolia C 
Millet, wild-proso G Panicum miliaceum C 
Morningglory, ivyleaf (See 
precautions section below) 
B Ipomoea hederacea C 
Morningglory, pitted (See 
precautions section below) 
B Ipomoea lacunose C 
Morningglory, tall (See 
precautions section below) 
B Ipomoea purpurea C 
Mustard, wild B Sinapis arvensis C 
Nightshade, black B Solanum nigrum C 
Nightshade, Eastern black B Solanum ptycanthum C 
Nightshade, hairy B Solanum phsalifolium C 
Nutsedge, yellow S Cyperus esculentus C 
Nutsedge, purple S Cyperus rotundus C 
Oat, wild G Avena fatua C 
Panicum, fall G Panicum dichotomiflorum C 
Pennycress, field B Thlaspi arvense C 
Pigweed, prostrate B Amaranthus blitoides C 
Pigweed, redroot B Amaranthus retroflexus C 
Pigweed, smooth B Amaranthus hybridus C 
Pigweed, tumble B Amaranthus albus C 
Pokeweed, common B Phytolacca americana C 
Potato, volunteer B Solanum spp. C 
Puncturevine B Tribulus terrestris C 
Purslane, common B Portulaca oleracea C 
Pusley, Florida B Richardia scabra C 
Ragweed, common (See 
precautions section below) 
B Ambrosia artemisiifolia C

20 
 
Common Name 
Weed Type 
 
B = Broadleaf 
G = Grass 
S = Sedge 
Scientific Name 
A23011 Herbicide at 3.75 pt/A 
plus NIS plus AMS 
 
C = Control 
 
Apply to weeds less than 4” in 
height, length or diameter 
Ragweed, giant (See 
precautions section below) 
B Ambrosia trifida C 
Sandbur, field G Cenchrus spinifex C 
Sandbur, southern G Cenchrus echinatus C 
Senna, coffee B Senna occidentalis C 
Sesbania, hemp B Sesbania herbacea C 
Shattercane G Sorghum bicolor C 
Shepherd’s-purse B Capsella bursa-pastoris C 
Sicklepod B Senna obtusifolia C 
Sida, prickly (teaweed) B Sida spinosa C 
Signalgrass, broadleaf G Urochloa platyphylla C 
Signalgrass, browntop G Urochloa fusca C 
Smartweed, ladysthumb B Persicaria maculosa C 
Smartweed, pale B Persicaria lapathifolium C 
Smartweed, Pennsylvania B Persicaria pensylvanicum C 
Sorghum, grain (milo) G Sorghum bicolor C 
Spurge, prostrate B Euphorbia prostrata C 
Spurge, spotted B Euphorbia maculata C 
Starbur, bristly G Ancanthospornum 
hispidum 
C 
Stinkgrass G Eragrostis cilianensis C 
Sunflower, common B Helianthus annuus C 
Thistle, Canada B Circium arvense C 
Thistle, Russian (See 
precautions section below) 
B Salsola tragus C 
Velvetleaf B Abutilon theophrasti C 
Waterhemp (See precautions 
section below) 
B Amaranthus tuberculatus C 
Witchgrass G Panicum capillare C 
Precautions 
• For improved control of glyphosate-resistant broadleaf weeds or broadleaf weeds in the upper end of the 
labeled height, length, or diameter, the addition of atrazine is recommended for weeds such as: Amaranth, 
Palmer; Amaranth, spiny; Buckwheat, wild; Burcucumber; Hemp; Horseweed (marestail); Kochia; 
Morningglory, ivyleaf; Morningglory, pitted; Morningglory, tall; Ragweed, common; Ragweed, giant; Thistle, 
Russian; and Waterhemp. Refer to Section 4.4.4 for additional atrazine tank-mix directions. 
• For improved control of glyphosate and HPPD resistant broadleaf weeds such as: Amaranth, Palmer and 
Waterhemp, the addition of atrazine plus a solo dicamba-containing product is recommended for improved 
control. Refer to Section 4.4.4 for additional atrazine and solo dicamba-containing products tank-mix 
directions. 
• Will not control glyphosate-resistant volunteer corn. 
• Control may be reduced at the button stage or when less than 2 inches in height for Kochia and Thistle, 
Russian.

21 
 
9.0 CROP USE DIRECTIONS 
9.1 Corn 
9.1.1 Postemergence Application 
Crops (including cultivars, varieties, and/or hybrids of these) 
Field Corn (Glyphosate-Resistant) 
Application Timing Rate Use Directions 
Glyphosate-Resistant 
Field Corn 
(Postemergence) 
3.75 pt/A 
 
 
Apply only in glyphosate-resistant field corn 
for control of the weeds listed in Section 8.1. 
 
Apply A23011 Herbicide to actively growing 
weeds listed in Section 8.1. 
 
Apply from corn emergence up to 30 inches 
in height or no later than the 8-leaf stage of 
corn growth. 
 
For the best protection of the field corn’s 
yield potential, apply A23011 Herbicide 
before weeds exceed 4 inches in height, 
length or diameter. 
 
When glyphosate-resistant field corn is 
grown under no-till conditions, control all 
emerged weeds at the time of field corn 
planting with a glyphosate or paraquat based 
burndown herbicide program. 
 
Visible effects on annual weeds occur within 
2-4 days after application; effects on 
perennial weeds may take 7 days or longer. 
 
Weeds susceptible to S-metolachlor, 
mesotrione and bicyclopyrone which emerge 
soon after application of A23011 Herbicide 
may be controlled after they absorb the 
herbicides from the soil. 
 
Will provide 3-4 weeks of residual control, if 
an activating rainfall is received within 7 to 
10 days after applications. 
 
Apply A23011 Herbicide with a non-ionic 
surfactant (NIS) and ammonium sulfate 
(AMS). Refer to Section 4.4.5. 
Glyphosate-Resistant 
Field Corn (Preplant or 
preemergence products 
followed by A23011 
Herbicide postemergence) 
3.75 pt/A 
 
 
Use of a preplant or preemergence residual 
herbicide followed by A23011 Herbicide 
postemergence is highly recommended to 
protect the crop’s yield potential and for 
weed resistance management. 
 
Recommended Preplant or Preemergence 
residual herbicides followed by A23011 
Herbicide postemergence:

22 
 
Bicep II Magnum® - Bicep Lite II Magnum® 
Dual II Magnum® 
Lexar® EZ 
Lumax® EZ 
 
If one of these products is used preplant or 
preemergence followed by A23011 Herbicide 
postemergence, refer to the specific product 
label for additional rate information and 
restrictions. 
 
Do not apply A23011 Herbicide at less than 
3.75 pt/A, when applied in a sequential 
program with these products. 
 
Apply A23011 Herbicide with a non-ionic 
surfactant (NIS) and ammonium sulfate 
(AMS). Refer to Section 4.4.5. 
 Tank-Mix Application Options: 
• Refer to Section 9.1.2 for tank-mix options. 
Resistance Management: 
• Refer to Section 3.1. 
• Using reduced rates of A23011 Herbicide increases the risk for the development of weed resistant 
biotypes. 
Precautions: 
• An application of A23011 Herbicide to a field corn hybrid that is not glyphosate-resistant will result in crop 
death. 
• Extremely cool or cloudy weather following treatment may slow activity. 
• If an activating rain (0.25 inches) is not received within 7-10 days after the postemergence application, 
residual weed control will be reduced. 
• Applying A23011 Herbicide at rates less than 3.75 pt/A may result in incomplete weed control, as well as 
less residual weed control. 
• Temporary crop response (transient bleaching) from postemergence applications to glyphosate-resistant 
field corn may occur under extreme weather conditions or when the crop is suffering from stress. Corn 
quickly outgrows these effects and develops normally. 
• The use of A23011 Herbicide with urea ammonium nitrate (UAN) will result in postemergence glyphosate -
resistant field corn injury and reduced grass weed control. 
• Do not cultivate corn within 7 days before or after an A23011 Herbicide application as weed control from 
the A23011 Herbicide application may be reduced. 
• Severe corn injury resulting in yield loss may occur if applied postemergence to corn crops that were 
treated with Counter®, Lorsban® or other organophosphate-containing soil insecticides. 
• Severe corn injury resulting in yield loss may occur if any foliar organophosphate or carbamate insecticide 
is applied postemergence within 7 days before or 7 days after A23011 Herbicide application. 
• Severe corn injury may occur if A23011 Herbicide is applied postemergence in a tank-mix with 
emulsifiable concentrate (EC formulation) products. 
USE RESTRICTIONS 
1) Refer to Section 7.1 for additional product use restrictions. 
2) Maximum Single Application Rate: 3.75 pt/A 
a. Maximum Single Application Rate of s-metolachlor is 0.94 lb ai/A 
b. Maximum Single Application Rate of bicyclopyrone is 0.045 lb ai/A 
c. Maximum Single Application Rate of mesotrione is 0.09 lb ai/A 
d. Maximum Single Application Rate of glyphosate is 0.94 lb ae/A 
3) Maximum Annual Rate: 3.75 pt/A 
a. DO NOT exceed 0.24 lb ai/A/year of mesotrione-containing products. 
b. DO NOT exceed 3.71 lb ai/A/year of S-metolachlor-containing products. 
c. DO NOT exceed 5.9 lb ae/A/year of glyphosate-containing products.

23 
 
d. DO NOT exceed 0.045 lb ai/A/year of bicyclopyrone-containing products. 
4) DO NOT make more than 1 application per year. 
5) DO NOT make applications of A23011 Herbicide past the 8-leaf stage of growth (or >30 inches tall) in 
glyphosate-resistant field corn. 
6) DO NOT graze or feed forage from treated areas for 45 days following application. 
7) Preharvest Interval (PHI): 45 days 
 
9.1.2 Tank-Mix Combinations 
Application Tank-Mix Brands Use Directions 
Glyphosate-Resistant Field 
Corn 
(Postemergence tank-mixes) 
 
AAtrex® brands or other 
solo atrazine products 
 
Atrazine may be tank mixed with A23011 
Herbicide for improved control of glyphosate-
resistant broadleaf weeds, difficult to control 
broadleaf weeds or broadleaf weeds larger than 
4 inches. 
 
If a solo atrazine product is tank mixed with 
A23011 Herbicide, refer to the specific solo 
atrazine-containing product label for rates and 
restrictions. 
 
Atrazine rates above 0.5 lb ai/A may result in 
glyphosate antagonism and reduced grass 
control. 
 
In a tank-mix with A23011 Herbicide plus AAtrex 
brands or other solo atrazine products, use a 
non-ionic surfactant (NIS) and ammonium 
sulfate (AMS). Refer to Section 4.4.5 for rates. 
Clarity® 
Distinct® 
Status® 
 
 
For improved control of herbicide resistant 
broadleaf weeds, difficult to control broadleaf 
weeds or broadleaf weeds larger than 4 inches, 
the addition of one of these dicamba-containing 
products may be tank-mixed with A23011 
Herbicide. 
 
If one of these dicamba-containing products is 
tank mixed with A23011 Herbicide, refer to the 
specific dicamba-containing product label for 
rates and restrictions. 
 
In a tank-mix with A23011 Herbicide plus 
Clarity, Distinct or Status, use a nonionic 
surfactant (NIS) at 1 qt/100 gal of spray solution 
and spray grade ammonium sulfate (AMS) at 
8.5 -17 lb/100 gal of spray solution. 
Solo glyphosate brands 
registered for 
postemergence use on 
glyphosate-resistant field 
corn 
For improved control of broadleaf and grass 
weeds larger than 4 inches, the addition of a 
solo glyphosate-containing product may be 
tank-mixed with A23011 Herbicide. 
 
If additional glyphosate is tank mixed with 
A23011 Herbicide refer to the specific 
glyphosate label for rates and restrictions.

24 
 
In a tank-mix with A23011 Herbicide plus solo 
glyphosate brands, use a non-ionic surfactant 
(NIS) at 1 qt/100 gal of spray solution and spray 
grade ammonium sulfate (AMS) at 8.5 - 17 
lb/100 gal of spray solution. 
Peak® or other solo 
prosulfuron products 
For improved control of difficult to control 
broadleaf weeds, such as burcucumber, the 
addition of Peak or other solo prosulfuron 
products may be tank-mixed with A23011 
Herbicide. 
 
If Peak or other solo prosulfuron products are 
tank mixed with A23011 Herbicide, refer to the 
specific product label for rates and restrictions. 
 
In a tank-mix with A23011 Herbicide plus Peak 
or other solo prosulfuron products, use a non-
ionic surfactant (NIS) and ammonium sulfate 
(AMS). Refer to Section 4.4.5 for rates 
Besiege 
Warrior II with Zeon 
Technology® 
For control of insects, the addition of Besiege or 
Warrior brands may be tank-mixed with A23011 
Herbicide. 
 
If Besiege or Warrior brands are tank mixed with 
A23011 Herbicide refer to the specific product 
label for rates and restrictions. 
 
In a tank-mix with A23011 Herbicide plus 
Besiege or Warrior brands use a non-ionic 
surfactant (NIS) and ammonium sulfate (AMS). 
Refer to Section 4.4.5 for rates. 
TANK-MIX USE RESTRICTIONS 
1) All use restrictions cited in Section 9.1.1 for A23011 Herbicide solo apply to tank-mixes with A23011 
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. 
3) Atrazine Restrictions: 
a. When tank mixing or sequentially applying atrazine or products containing atrazine with A 23011 
Herbicide to glyphosate-resistant field corn, do not exceed an application rate of 2.0 pounds 
active ingredient of atrazine per acre for any single application and the total pounds of atrazine 
applied (lb ai per acre) must not exceed 2.5 pounds active ingredient per acre per year. 
b. DO NOT apply any atrazine formulation if the corn is greater than 12 inches tall. 
c. If no atrazine was applied prior to corn emergence, apply a maximum of 2.0 lb ai/A broadcast. If 
a postemergence treatment is required following an earlier herbicide application, the total 
atrazine applied may not exceed 2.5 lb ai/A per year.

25 
 
10.0 STORAGE AND DISPOSAL 
STORAGE AND DISPOSAL 
Do not contaminate water, food, or feed by storage and disposal. 
Pesticide Storage 
Keep container tightly closed when not in use. Product can be stored at temperatures as low 
as -10°F. Do not store near seeds, fertilizers, or food stuffs. Keep away from heat and 
flame. 
Pesticide Disposal 
Open dumping is prohibited. Waste resulting from the use of this product must be disposed 
of on site or at an approved waste disposal facility. Thoroughly rinse the spray equipment 
after use. 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 
as described above, contact your State Pesticide or Environmental Control Agency, or the 
Hazardous Waste Representative at the nearest EPA Regional Office for guidance. 
Container Handling [less than or equal to 5 gallons] 
Non-refillable container. Do not reuse or refill this container. Offer for recycling if available. 
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 
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 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 use 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 refiller. 
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. If the 
container is damaged, leaking or obsolete, contact Syngenta Crop Protection, LLC at 1-800-
888-8372. 
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

26 
 
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. 
For minor spills, leaks, etc., follow all precautions indicated on this label and clean up 
immediately. Take special care to avoid contamination of equipment and facilities during 
cleanup procedures and disposal of wastes. 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. 
 
11.0 CONDITIONS OF SALE AND LIMITATION OF WARRANTY 
AND LIABILITY 
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

27 
 
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. 
 
12.0 APPENDIX 
12.1 A23011 Herbicide Tank-Mix Table 
 
Product Name EPA Registration Number Active Ingredient(s) 
Bicep II Magnum® 100-817 S-metolachlor + atrazine 
Bicep Lite II Magnum® 100-827 S-metolachlor + atrazine 
Dual II Magnum® 100-818 S-metolachlor 
Lexar® EZ 100-1414 S-metolachlor + atrazine + 
mesotrione 
Lumax® EZ 100-1442 S-metolachlor + atrazine + 
mesotrione 
AAtrex® 4L 100-497 atrazine 
Atrazine Nine-O 100-585 atrazine 
Clarity® 7969-137 dicamba 
Distinct® 7969-150 dicamba + diflufenzopyr 
Status® 7969-242 dicamba + diflufenzopyr 
Peak® 100-763 prosulfuron

28 
 
Besiege® 100-1402 chlorantraniliprole + lambda-
cyhalothrin 
Warrior II with Zeon 
Technology® 
100-1295 lambda-cyhalothrin 
Counter® 5481-562 terbufos 
Lorsban® 62719-591 chorpyifos 
 
AAtrex®, Besiege®, Bicep II Magnum®, Bicep Lite II Magnum®, DoseLock™, Dual II 
Magnum®, Lexar® EZ, Lumax® EZ, Warrior II with Zeon Technology ®, the ALLIANCE 
FRAME, the SYNGENTA Logo, and the PURPOSE ICON are Trademarks of a Syngenta 
Group Company 
 
Clarity®, Counter®, Distinct®, and Status® are trademarks of BASF Corporation 
 
Lorsban® is a trademark of Corteva Agriscience 
 
Peak® is a trademark of Gowan Company, LLC. 
 
©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 
 
A23011 HERBICIDE 1675 MAS 0123 NOTIF.OCT2024-HI – di – 10/17/2024 
000100-01675.20241025.A23011_HERBICIDE.NOTIF.OCT2024-HI