crop-chem-docs/corpus/epa_ppls/100-1465.md

# SYN-A16003 HERBICIDE

- EPA Reg No: **100-1465**
- Registrant: SYNGENTA CROP PROTECTION, LLC
- Signal word: Caution
- Active ingredients: Bicyclopyrone (18.5%)
- Label accepted: 2024-02-16
- Source PDF: https://www3.epa.gov/pesticides/chem_search/ppls/000100-01465-20240216.pdf

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February 16, 2024
Amanda M. Foderaro
Regulatory Manager, Herbicides
Syngenta Crop Protection, LLC
P.O. Box 18300
Greensboro, NC 27419
Subject: Approval of Label Amendment; Only Indicated Changes Reviewed – Changes
includes the addition of New York Nassau and Suffolk County restriction 
statement.
 Product Name: SYN-A16003 Herbicide
 EPA Registration Number: 100-1465
 Application Date: 07/21/2022
 Case Number: 00483999
Dear Amanda M. Foderaro:
The amended label referred to above, submitted in connection with registration under the 
Federal Insecticide, Fungicide, and Rodenticide Act (FIFRA), as amended, is acceptable.
However, EPA reviewed only the label changes highlighted, marked, or otherwise indicated on 
the submitted label. Any other changes to the previously approved label that were not clearly 
highlighted, marked, or otherwise indicated in your submission were not reviewed and may 
form the basis of regulatory and/or enforcement action if later discovered by the Agency. 
Further, submission of a label amendment application with unidentified changes may be 
considered a knowing submission of false information to the Agency. This approval does not 
affect any conditions that were previously imposed on this registration. You continue to be 
subject to existing conditions on your registration and any deadlines connected with them.
The label submitted with the application has been stamped “Accepted Only Indicated Revisions 
Reviewed” and is enclosed for your records. 
This labeling supersedes all previously accepted labeling. You must submit one copy of the final 
printed labeling before you release the product for shipment with the new labeling. In 
accordance with 40 C.F.R. § 152.130(c), you may distribute or sell this product under the 
previously approved labeling for 18 months from the date of this letter. After 18 months, you 
may only distribute or sell this product if it bears this new revised labeling or subsequently

Page 2 of 2
EPA Reg. No. 100-1465
Case Number 00483999
approved labeling. “To distribute or sell” is defined under FIFRA section 2(gg) and its 
implementing regulation at 40 C.F.R. § 152.3. 
Should you wish to add/retain a reference to the company’s website on your label, then please 
be aware that the website becomes labeling under FIFRA and is subject to review by the 
Agency. If the website contains any false or misleading statement, design, or graphic, the 
product may be misbranded and unlawful to sell or distribute under FIFRA Sections 2(q)(1)(A) 
and 12(a)(1)(E). 40 C.F.R. § 156.10(a)(5) lists examples of statements EPA may consider false or 
misleading. In addition, regardless of whether a website is referenced on the product label, 
claims made as part of the product’s sale or distribution may not substantially differ from those 
claims approved through the registration process under FIFRA Section 12(a)(1)(B). 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 
product will be referred to the EPA’s Office of Enforcement and Compliance Assurance. 
 
Your release for shipment of the product constitutes acceptance of these conditions. If these 
conditions are not complied with, the registration will be subject to cancellation in accordance 
with FIFRA section 6. 
 
If you have any questions, please contact Francisco Llarena-Arias at 202-566-2816 or at llarena-
arias@epa.gov. 
 
 
 
 
 
 
 
 
Francisco Llarena-Arias For 
Lydia Crawford, 
Acting Product Manager 24 
Fungicide & Herbicide Branch 
Registration Division (7505P) 
Office of Pesticide Programs 
 
 
 
 
 
Enclosure

BICYCLOPYRONE GROUP 27 HERBICIDE 
 
Sale, use and distribution of this product in Nassau and Suffolk Counties in the State 
of New York is prohibited. 
 
SYN-A16003 Herbicide 
 
[Alternate Brand Name: Optogen] 
 
For Weed Control in Banana, Broccoli, Corn (Field and Seed), Garlic, Hops, Horseradish, 
Lemongrass, Onion (dry bulb), Onion (green), Papaya, Plantain, Rosemary, Sweet Corn, 
Strawberry, Sweet Potato, Timothy grown for seed, Watermelon, Wormwood, and Yellow 
Popcorn. 
 
Active Ingredients: 
Bicyclopyrone* .......................................................................................................... 18.5% 
Other Ingredients: 81.5% 
Total: 100.0% 
 
 *CAS No. 352010-68-5 
 
This product contains 1.67 pounds of active ingredient bicyclopyrone per gallon. 
 
KEEP OUT OF REACH OF CHILDREN. 
 
CAUTION 
 
See additional precautionary statements and directions for use [on label] [inside booklet]. 
 
EPA Reg. No. 100-1465 
 
EPA Est. 
 
__________ 
Net Contents 
 
[Batch Code: _____] (For nonrefillables only.)

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 
2.7 Physical or Chemical Hazards 
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 
4.2 Application Equipment 
4.3 Application Volume and Spray Coverage 
4.4 Mixing Directions 
4.4.1 SYN-A16003 Herbicide Alone 
4.4.2 Tank-Mix Precautions 
4.4.3 Tank-Mix Compatibility 
4.4.4 SYN-A16003 Herbicide in Tank Mixtures 
4.4.5 Spray Additives 
4.5 Sprayer Cleanout 
5.0 REPLANT AND ROTATIONAL CROPS 
5.1 Replant and Rotational Crops 
6.0 COVER CROPS 
6.1 Field Bioassay for Cover Crops 
7.0 RESTRICTIONS 
7.1 Use Restrictions 
7.2 Spray Drift Management 
7.3 Spray Drift Advisories 
7.3.1 Importance of Droplet Size 
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. 
7.3.2 Controlling Droplet Size

7.3.3 Boom Height
7.3.4 Shielded Sprayers 
7.3.5 Temperature and Humidity 
7.3.6 Temperature Inversions 
7.3.7 Wind 
7.3.8 Buffer Zone 
8.0 WEEDS CONTROLLED OR PARTIALLY CONTROLLED BY SYN-A16003 Herbicide 
8.1 Weeds Controlled or Partially Controlled with a Soil Application of SYN-A16003 
Herbicide 
8.2 Weeds Controlled or Partially Controlled with Postemergence Application of SYN-
A16003 Herbicide 
9.0 CROP USE DIRECTIONS 
9.1 Banana, Plantain, and Papaya 
9.2 Broccoli 
9.3 Corn 
9.3.1 Preemergence or Postemergence Applications 
9.3.2 Tank Mix Combinations for Corn 
9.4 Garlic 
9.5 Hops 
9.6 Horseradish 
9.7 Lemongrass 
9.7.1 Preplant, Preplant Incorporated or Postemergence Applications 
9.8 Onion 
9.8.1 Preemergence, Row Middle or Post-Directed Applications 
9.8.2 Postemergence Applications [New York Only] 
9.9 Rosemary 
9.9.1 Preplant, Preplant Incorporated or Postemergence Applications 
9.10 Strawberry 
9.11 Sweet Potato 
9.12 Timothy grown for seed 
9.13 Watermelon 
9.14 Wormwood 
9.14.1 Pre-Greenup, Post-Greenup or Postemergence Applications 
10.0 STORAGE AND DISPOSAL 
11.0 CONDITIONS OF SALE AND LIMITATION OF WARRANTY AND LIABILITY 
12.0 APPENDIX 
12.1 Tank Mix Product Information 
12.2 SYN-A16003 Herbicide Use Summary Table [Optional Text]

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 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. 
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. 
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. Avoid contact with 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.

2.2 Personal Protective Equipment (PPE) 
Applicators and other handlers must wear: 
Long-sleeved shirt and long pants 
Shoes plus socks 
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 VitonTM® >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 or enclosed cabs in a manner that meets the 
requirements listed in the Worker Protection Standard (WPS) for agricultural pesticides (40 
CFR 170.240(d)(4-6)), the handler PPE requirements may be reduced or modified as 
specified in the WPS. 
 
2.5 User Safety Recommendations 
User Safety Recommendations 
Users should: 
 Remove clothing/PPE immediately if pesticide gets inside. Then wash thoroughly 
and put on clean clothing. 
 Remove 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 
wash water or rinsate.

2.6.1 Groundwater Advisory
This product is known to leach through soil into ground water under certain conditions as a 
result of label use. This chemical may leach into ground water if used in areas where soils 
are permeable, particularly where the water table is shallow. 
 
2.6.2 Surface Water Advisory 
This product has a 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 including as ponds, streams, and 
springs will reduce the potential loading of bicyclopyrone 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. 
2.7 Physical or Chemical Hazards 
DO NOT use or store near heat or open flame. 
 
DIRECTIONS FOR USE 
It is a violation of federal law to use this product in a manner inconsistent with its labeling. 
Use SYN-A16003 Herbicide only in accordance with specifications on this label or in 
separately EPA approved labeling instructions for this 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 DIRECTIONS AND PRECAUTIONS ON THIS LABEL MAY 
RESULT IN CROP INJURY, POOR WEED CONTROL, AND/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. The requirements in this box only apply 
to uses of this product that are covered by the Worker Protection Standard. 
DO NOT enter or allow worker entry into treated areas during the restricted entry 
interval (REI) of 24 hours.

PPE required for early entry to treated areas that is permitted under the Worker 
Protection Standard and that involves contact with anything that has been treated, 
including plants, soil, or water, is: 
 Coveralls 
 Shoes plus socks 
 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 
 
3.0 PRODUCT INFORMATION 
SYN-A16003 Herbicide is a systemic preemergence and postemergence herbicide for the 
selective contact and residual control of broadleaf weeds. When used preemergence, weeds 
take up the product through the soil during germination and emergence. Dry conditions 
following application may reduce the preemergence activity of SYN-A16003 Herbicide. If an 
activating rain (0.25 inches) is not received within 7-10 days after a preemergence 
application, where appropriate, rotary hoeing is suggested to activate the herbicide. When 
used postemergence, susceptible weeds take up the herbicide through the treated foliage 
and cease growth soon after application. Complete death of the weeds may take up to two 
weeks. The product is absorbed through the soil and/or by the foliage of emerged weeds. 
SYN-A16003 Herbicide can be used in combination with a burndown herbicide, prior to 
planting, to provide added burndown and residual weed control 
 
3.1 Resistance Management 
BICYCLOPYRONE GROUP 27 HERBICIDE 
 
SYN-A16003 Herbicide is a Group 27 Herbicide (contains the active ingredient 
bicyclopyrone). 
 
Naturally occurring biotypes of certain weed species with resistance to triazines, ALS, PPO, 
Glycine (glyphosate) and HPPD herbicides are known to exist. If biotypes of weeds resistant 
to triazines, ALS, PPO and glycine inhibitors are present in the field, this herbicide controls 
them if they are listed in Section 8.0. 
 
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.

Scout fields 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 including 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 
Plant fields with difficult to control weeds 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, including 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 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, example, 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 this mode of action are present in your area. If resistant 
biotypes have been reported, use the full labeled rate of this product, apply at the labeled 
timing, and tank-mix with a 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 SYN-A16003 Herbicide alone or in tank mixtures are permitted by ground 
application. Preemergence and postemergence applications are allowed as specified in 
Section 9.0 unless otherwise restricted in Section 7.0. 
 
4.2 Application Equipment 
Configure spray equipment to provide accurate and uniform coverage of the target area and 
minimize potential for spray drift. 
To ensure accuracy, calibrate sprayer before each use. 
For information on spray equipment and calibration, consult spray equipment 
manufacturers and/or state specifications. 
All ground application equipment must be properly maintained. 
Spray nozzles must be uniformly spaced; the same size and type, and must provide 
accurate and uniform application. 
Use spray nozzles that provide medium to coarse droplet size to provide good coverage 
and avoid drift. 
specified pressure at the nozzles and 
provide proper agitation within the tank to keep the product dispersed. 
Lower pressures may be used with extended range or drift reduction nozzles. 
Nozzles may be angled forward 45° to enhance penetration of the crop and provide better 
coverage. 
Ensure that all in line strainer and nozzle screens in the sprayer are 50-mesh or coarser. 
For postemergence applications, boom height for broadcast over-the-top applications 
must be based on the height of the crop at least 15 inches above the crop canopy. 
For postemergence applications, flat fan nozzles of 80° or 110° are advised. 
DO NOT use floodjet nozzles or controlled droplet application equipment for 
postemergence applications.

4.3 Application Volume and Spray Coverage 
Good weed coverage is essential for optimum weed control. 
For preemergence applications, apply SYN-A16003 Herbicide preemergence with a 
carrier volume of 10-60 gal/A using water or up to 80 gal/A using liquid fertilizer (excluding 
suspension fertilizers) as the carrier. 
For postemergence applications, apply in a spray volume of 10-30 gal/A using water as a 
carrier. 
For postemergence applications, when weed foliage is dense, use a minimum of 20 gal. 
 
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. 
 
4.4.1 SYN-A16003 Herbicide Alone 
1. For postemergence applications, use only clean water for the spray solution. 
2. Liquid fertilizer (excluding suspension fertilizers) may be used as the carrier for 
preemergence (i.e. before crop emergence) applications. 
3. Begin to fill sprayer tank or premix tank with clean water and engage agitator. 
4. Agitation must be continued throughout the entire mixing and spraying procedure. 
5. If the agitation is stopped for more than 5 minutes, resuspend the spray solution by 
running on full agitation prior to spraying. 
6. When the sprayer or premix tank is half full of water, add AMS (if needed or allowed) and 
agitate until completely dispersed. 
7. Next add SYN-A16003 Herbicide slowly and agitate until completely dissolved. 
8. Wait at least 1 minute after the last of the SYN-A16003 Herbicide has been added to the 
tank to allow for complete dispersion. 
9. A longer agitation period may be required to disperse SYN-A16003 Herbicide when using 
cold water from sources including deep drilled wells. 
10. Finally, add adjuvant if needed, and then continue to fill tank to desired level with water. 
 
4.4.2 Tank-Mix Precautions 
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. 
Tank mixes of SYN-A16003 Herbicide with other pesticides, fertilizers, or any other 
additives not specifically labelled for use with SYN-A16003 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 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 1530 minutes and then examine for signs of 
incompatibility including 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 SYN-A16003 Herbicide in Tank Mixtures 
1. For postemergence applications, use only clean water for the spray solution. 
2. Liquid fertilizer (excluding suspension fertilizers) may be used as the carrier for 
preemergence (i.e. before crop emergence) applications. 
3. Begin to fill sprayer tank or premix tank with clean water and engage agitator. 
4. Agitation must be continued throughout the entire mixing and spraying procedure. 
5. If the agitation is stopped for more than 5 minutes, suspend the spray solution by running 
on full agitation prior to spraying. 
6. When the sprayer or premix tank is half full of water, add AMS and agitate until completely 
dispersed. 
7. Next add SYN-A16003 Herbicide slowly and agitate until completely dissolved. 
8. Wait at least 1 minute after the last of the SYN-A16003 Herbicide has been added to the 
tank to allow for complete dispersion. 
9. A longer agitation period may be required to disperse SYN-A16003 Herbicide when using 
cold water from sources including deep drilled wells. 
10. Add the tank mix product. 
11. Finally, add adjuvant and UAN, if needed, and then continue to fill tank to desired level 
with water.

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 advised. 
 
Preemergence Adjuvants 
For preplant or preemergence applications, and where weeds are present, the use of any 
adjuvant for agricultural use is permitted. 
In these situations, methylated seed oil (MSO) type adjuvants are typically better than 
crop oil concentrate (COC) type adjuvants, which are typically better than nonionic 
surfactant (NIS) type adjuvants for enhancing weed control. 
Spray grade ammonium sulfate (AMS) can be added and typically provides better weed 
control and consistency of control. 
If SYN-A16003 Herbicide is being tank mixed with another registered herbicide in this 
situation, refer to the tank mix partner label for adjuvant precautions and restrictions. 
 
Postemergence Adjuvants 
For postemergence applications made after the crop has emerged or been transplanted, 
refer to the crop use directions (Section 9.0) for specific instructions. 
 
4.5 Sprayer Cleanout 
Special attention must be given to cleaning equipment before spraying a crop other than 
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. All visible 
deposits must be removed 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 1-3 in an appropriate manner. 
6. Repeat steps 2-5. 
7. Remove nozzles, screens, and strainers and clean separately in the ammonia solution 
after completing the above procedures. 
8. Rinse the complete spraying system with clean water.

5.0 REPLANT AND ROTATIONAL CROPS 
5.1 Replant and Rotational Crops 
If a crop treated with SYN-A16003 Herbicide is lost, any crop on this label, or on a 
supplemental SYN-A16003 Herbicide label, may be replanted or rotated at any interval 
provided that the rate of SYN-A16003 Herbicide applied to the previous crop was not 
greater than the labeled rate for the crop to be replanted. 
The crops listed in the table below may be planted at the specified interval following 
application of SYN-A16003 Herbicide. 
Crop Replant/Rotational Interval 
Corn (field, seed) 
Corn, sweet 
Garlic 
Horseradish 
Lemongrass 
Onion, bulb 
Onion, green 
Rosemary 
Strawberry 
Sweet Potato 
Timothy grown for seed 
Watermelon 
Wormwood 
Yellow popcorn 
Anytime 
Small grain cereals including wheat, barley and rye 4 Months 
Alfalfa 
Cotton 
Peanuts 
Potato 
Rice 
Sorghum 
Soybeans 
10 Months 
All other rotational crops 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 a SYN-A16003 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 including 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 SYN-A16003 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 including 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 
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 this product through any type of irrigation system. 
DO NOT use aerial application to apply SYN-A16003 Herbicide.

7.2 Spray Drift Management 
Mandatory Spray Drift Requirements 
Ground Applications 
Apply with the nozzle height specified by the manufacturer, but no more than 3 feet above 
the ground or crop canopy. 
For all applications, applicators are required to use a medium or coarser spray droplet 
size (ASABE S572.1). 
DO NOT apply when wind speeds exceed 10 miles per hour at the application site. 
DO NOT apply during temperature inversions. 
 
7.3 Spray Drift Advisories 
THE APPLICATOR IS RESPONSIBLE FOR AVOIDING OFF-SITE SPRAY DRIFT. 
BE AWARE OF NEARBY NON-TARGET SITES AND ENVIRONMENTAL CONDITIONS. 
7.3.1 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. 
7.3.2 Controlling Droplet Size 
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 directed 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. 
 
7.3.3 Boom Height 
Use the lowest boom height that is compatible with the spray nozzles that will provide 
uniform coverage. 
For ground equipment, the boom should remain level with the crop and have minimal 
bounce. 
 
7.3.4 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. 
 
7.3.5 Temperature and Humidity 
When making applications in hot and dry conditions, use larger droplets to reduce effects 
of evaporation. 
 
7.3.6 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. 
 
7.3.7 Wind 
Drift potential 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. 
 
7.3.8 Buffer Zone 
Leave a 25 foot buffer downwind of the application to avoid drift to non-target areas. 
 
8.0 WEEDS CONTROLLED OR PARTIALLY CONTROLLED BY 
SYN-A16003 Herbicide 
Where reference is made to weeds partially controlled, partial control can either mean erratic 
control from good to poor, or inconsistent control at a level below that isconsidered 
acceptable for commercial weed control.

C = Control, PC = Partial Control
 
8.1 Weeds Controlled or Partially Controlled with a Soil Application of 
SYN-A16003 Herbicide 
SYN-A16003 Herbicide applied as instructed in this label will provide 3-4 weeks of residual 
weed control or partial control of the weeds listed. 
Common Name Scientific Name 
Weed 
Type 
Control (C) or 
Partial Control 
(PC) 
Barnyardgrass Echinochloa crus-galli Grass PC 
Crabgrass, large Digitaria ischaemum Grass PC 
Crabgrass, smooth Digitaria sanguinalis Grass PC 
Goosegrass Elucine indica Grass PC 
Foxtail, giant Setaria faberi Grass PC 
Panicum, fall Panicum dichotomiflorum Grass PC 
Amaranth, Palmer Amaranthus palmeri Broadleaf PC 
Amaranth, slender Amaranthus viridis Broadleaf PC 
Carpetweed Mollugo verticillata Broadleaf C 
Chickweed, common Stellaria media Broadleaf PC 
Cocklebur, common Xanthium strumarium Broadleaf PC 
Galinsoga, hairy Galinsoga quadriradiata Broadleaf C 
Jimsonweed Datura stramonium Broadleaf C 
Kochia Bassia scoparia Broadleaf C 
Ladysthumb Persicaria maculosa Broadleaf PC 
Lambsquarters, common Chenopodium album Broadleaf C 
Mallow, Venice Hibiscus trionum Broadleaf PC 
Morningglory, entireleaf Ipomoea hederacea Broadleaf PC 
Morningglory, ivyleaf Ipomoea hederacea Broadleaf PC 
Mustard, wild Sinapis arvensis Broadleaf PC 
Nightshade, Eastern black Solanum ptychanthum Broadleaf C 
Pigweed, prostrate Amaranthus blitoides Broadleaf C 
Pigweed, redroot Amaranthus retroflexus Broadleaf C 
Pigweed, smooth Amaranthus hybridus Broadleaf C 
Purslane, common Portulaca oleracea Broadleaf PC 
Purslane, horse Trianthema portulacastrum Broadleaf C 
Ragweed, common Ambrosia artemisiifolia Broadleaf C 
Ragweed, giant Ambrosia trifida Broadleaf PC 
Smartweed, Pennsylvania Persicaria pensylvanica Broadleaf PC 
Thistle, Russian Salsola tragus Broadleaf C 
Velvetleaf Abutilon theophrasti Broadleaf C

Common Name Scientific Name 
Weed 
Type 
Control (C) or 
Partial Control 
(PC) 
Waterhemp Amaranthus tuberculatus Broadleaf PC 
Procedures that might improve control of weeds listed above: 
 Thoroughly till soil to destroy germinating and emerged weeds. 
 If SYN-A16003 HerbicideA16003E Herbicide is to be used preemergence, apply at 
planting or immediately after planting. 
 If available, sprinkler irrigate within 2 days after application. 
 If irrigation is not possible and rain does not occur within 2 days after application, weed 
control may be decreased. 
 
8.2 Weeds Controlled or Partially Controlled with Postemergence 
Application of SYN-A16003 Herbicide 
SYN-A16003 Herbicide applied postemergence as instructed in this label will provide control 
or partial control of the weeds listed. Unless instructed otherwise, apply SYN-A16003 
HerbicideA16003 Herbicide to weeds that are 4 inches in height or less. 
 
Common Name Scientific Name 
Weed 
Type 
Control (C) or 
Partial Control 
(PC) 
Barnyardgrass Echinochloa crus-galli Grass PC 
Crabgrass, large Digitaria ischaemum Grass PC 
Foxtail, giant Setaria faberi Grass PC 
Foxtail, yellow Setaria pumila Grass PC 
Amaranth, Palmer Amaranthus palmeri Broadleaf PC 
Cocklebur, common Xanthium strumarium Broadleaf PC 
Henbit Lamium amplexicaule Broadleaf C 
Kochia Bassia scoparia Broadleaf PC 
Lambsquarters, common Chenopodium album Broadleaf PC 
Mallow, Venice Hibiscus trionum Broadleaf PC 
Morningglory, entireleaf Ipomoea hederacea Broadleaf PC 
Morningglory, ivyleaf Ipomoea hederacea Broadleaf PC 
Nightshade, Eastern black Solanum ptychanthum Broadleaf C 
Pigweed, prostrate Amaranthus blitoides Broadleaf C 
Pigweed, redroot Amaranthus retroflexus Broadleaf C 
Pigweed, smooth Amaranthus hybridus Broadleaf C 
Purslane, common Portulaca oleracea Broadleaf C 
Ragweed, common Ambrosia artemisiifolia Broadleaf C 
Ragweed, giant Ambrosia trifida Broadleaf C 
Sicklepod Senna obtusifolia Broadleaf PC 
Thistle, Russian Salsola tragus Broadleaf C

Common Name Scientific Name 
Weed 
Type 
Control (C) or 
Partial Control 
(PC) 
Velvetleaf Abutilon theophrasti Broadleaf C 
Waterhemp Amaranthus tuberculatus Broadleaf PC 
 Apply to Palmer amaranth and waterhemp before they reach 2 inches in height. 
 If environmental conditions result in stressed weeds, SYN-A16003 Herbicide applied at 
less than 3.5 fl oz/A (0.045 lb ai/A) as a postemergence treatment may not provide control 
or partial control of the weeds listed in Section 8.2. 
 
 
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 categorized as follows: 
Coarse Medium Fine 
 
Loamy sand 
Sand 
Sandy loam 
 
Loam 
Silt 
Silt loam 
 
Clay 
Clay loam 
Sandy clay 
Sandy clay loam 
Silty clay 
Silty clay loam 
 
 
9.1 Banana, Plantain, and Papaya 
Crop 
Banana Plantain Papaya 
Application 
Timing 
Rate 
fl oz/A 
[lb ai/A] 
Use Directions 
Row Middle or 
Post-Directed 
 
3.5 
[0.045] 
Apply to established planting of banana, plantain, and 
papaya. 
 
Avoid contacting the crop with spray or crop injury may 
occur.. 
 
Using a hooded or shielded sprayer will minimize 
potential crop injury when applying as a post-directed 
application. 
 
Add a nonionic surfactant (NIS) at 1 qt/100 gallons of 
water (0.25% v/v) or a crop oil concentrate (COC) at the 
rate of 1 gal/100 gallons of water (1.0% v/v).

In addition to NIS or COC, dry spray grade ammonium 
sulfate (AMS) may be added at a rate of 8.5 to 17 lb/gal of 
water. Liquid AMS may be substituted at an equivalent 
rate. The use of AMS will improve the consistency level 
of weed control. 
 
weeds. 
For Weed Control: 
 Refer to Section 8.0 for list of weeds controlled or partially controlled. 
Resistance Management: 
 Refer to Section 3.1. 
Precautions: 
 Avoid direct or indirect spray contact to foliage and bark or injury may occur. 
 Under adverse weather conditions (cool, wet, poor crop growth), temporary crop bleaching may be 
observed following application. 
USE RESTRICTIONS 
1) Refer to Section 7.1 for additional product use restrictions. 
2) Maximum Single Application Rate: 3.5 fl oz/A (0.045 lb ai/A) 
3) Minimum Application Interval: NA 
4) Maximum Annual Rate: 3.5 fl oz/A/year (0.045 lb ai/A) 
a. DO NOT exceed 0.045 lb ai/A/year of bicyclopyrone-containing products. 
5) DO NOT make more than 1 application per crop per year. 
6) Pre-harvest Interval (PHI): 1 day 
 
9.2 Broccoli 
Crop 
Broccoli 
Application 
Timing 
Rate 
fl oz/A 
[lb ai/A] 
Use Directions 
Row Middle or 
Post-Directed 
 
3.5 
[0.045] 
Apply after broccoli emergence or transplanting as either 
a row middle or post-directed application. 
 
Avoid contacting the broccoli foliage during application or 
crop injury will occur. 
 
Using a hooded or shielded sprayer will minimize 
potential crop injury when applying as row middle or post-
directed applications. 
 
Add a nonionic surfactant (NIS) at 1 qt/100 gallons of 
water (0.25% v/v) or a crop oil concentrate (COC) at the 
rate of 1 gal/100 gallons of water (1.0% v/v). 
 
In addition to NIS or COC, dry spray grade ammonium 
sulfate (AMS) may be added at a rate of 8.5 to 17 lb/gal of 
water. Liquid AMS may be substituted at an equivalent 
rate. The use of AMS will improve the consistency level 
of weed control. 
 
weeds.

For Weed Control: 
 Refer to Section 8.0 for list of weeds controlled or partially controlled. 
Resistance Management: 
 Refer to Section 3.1. 
Precautions: 
 Under adverse weather conditions (cool, wet, poor crop growth), temporary crop bleaching may be 
observed following application. 
USE RESTRICTIONS 
1) Refer to Section 7.1 for additional product use restrictions. 
2) Maximum Single Application Rate: 3.5 fl oz/A (0.045 lb ai/A) 
3) Minimum Application Interval: NA 
4) Maximum Annual Rate: 3.5 fl oz/A/year (0.045 lb ai/A) 
a. DO NOT exceed 0.045 lb ai/A/year of bicyclopyrone-containing products. 
5) DO NOT use preemergence on mineral soils. 
6) DO NOT make more than 1 application per crop per year. 
7) Pre-harvest Interval (PHI): 14 days 
 
9.3 Corn 
9.3.1 Preemergence or Postemergence Applications 
Crops (including cultivars, varieties, and/or hybrid of these) 
Field Corn Popcorn Seed Corn Sweet Corn 
Application 
Timing 
Rate 
fl oz/A 
[lb ai/A]] 
Use Directions 
Preemergence 3.5 
[0.045] 
Apply after planting but before crop emerges. 
 
If weeds are emerged at the time of application, add a 
nonionic surfactant (NIS) at 1 qt/100 gallons of water 
(0.25% v/v) or a crop oil concentrate (COC) at the rate of 
1 gal/100 gallons of water (1.0% v/v). 
 
In addition to NIS or COC, dry spray grade ammonium 
sulfate (AMS) may be added at a rate of 8.5 to 17 lb/gal 
of water. Liquid AMS may be substituted at an 
equivalent rate. The use of AMS will improve the 
consistency level of weed control. 
 
Refer to seed company directions for use on seed corn 
inbred lines. 
 
Postemergence 
In Field Corn and 
Seed Corn 
 
3.5 
[0.045] 
 
Apply after corn emergence up to 30 inches in height or 
the 8-leaf stage of corn growth. 
 
For best results, apply a postemergence application to 
actively growing weeds. 
 
Susceptible weeds which emerge soon after application 
of SYN-A16003 Herbicide may be controlled after they 
absorb the herbicide from the soil. 
 
For postemergence applications, add a nonionic 
surfactant (NIS) at 1 qt/100 gallons of water (0.25% v/v)

or a crop oil concentrate (COC) at the rate of 1 gal/100 
gallons of water (1.0% v/v). 
 
In addition to NIS or COC, dry spray grade ammonium 
sulfate (AMS) may be added at a rate of 8.5 to 17 lb/gal 
of water. Liquid AMS may be substituted at an 
equivalent rate. The use of AMS will improve the 
consistency level of weed control. 
 
For optimal contr
weeds. 
Postemergence 
In Popcorn and 
Sweet Corn 
 
3.5 
[0.045] 
Apply after popcorn or sweet corn emergence up to 30 
inches in height or the 8-leaf stage of corn growth. 
 
For best results, apply a postemergence application to 
actively growing weeds. 
 
Susceptible weeds which emerge soon after application 
of SYN-A16003 Herbicide may be controlled after they 
absorb the herbicide from the soil. 
 
For postemergence applications, add a nonionic 
surfactant (NIS) at 1 qt/100 gallons of water (0.25% v/v). 
 
Crop oil concentrate (COC) may be used at a rate of 1 
gal/100 gallons of water (1% v/v) instead of NIS. The use 
of COC will increase the level of weed control achieved, 
especially under dry growing conditions, but the risk of 
crop injury is increased significantly under lush growing 
conditions. 
 
Herbicide sensitivity to postemergence application in 
yellow popcorn and sweet corn varies widely, and all 
yellow popcorn and sweet corn hybrids have not been 
tested. Contact your popcorn or sweet corn company, 
Fieldman, or University Specialist about hybrid directions 
before making a postemergence application to yellow 
popcorn or sweet corn. 
 
Optimum control in yellow popcorn and sweet corn is 
achieved with the addition of atrazine wherever rotational 
or local atrazine restrictions allow. 
 
weeds. 
For Weed Control: 
 Refer to Section 8.0 for list of weeds controlled or partially controlled. 
Tank Mix or Sequential Application Options: 
 Refer to Section 9.1.2 for tank-mix options. 
 Resistance Management: 
 Refer to Section 3.1. 
Precautions: 
 Dry weather following preemergence application may reduce residual weed control effectiveness. If 
irrigation is available, apply ½ to 1 inch of water after preemergence application. If irrigation is not 
available, a uniform shallow cultivation is advised as soon as weeds emerge. 
 Use on peat or muck soils will results in reduced weed control. 
USE RESTRICTIONS

1) Refer to Section 7.1for additional product use restrictions.
2) DO NOT add UAN or AMS (nitrogen based adjuvants) when making postemergence applications of SYN-
A16003 Herbicide to yellow popcorn or sweet corn, or severe crop injury may occur. 
3) Maximum Single Application Rate: 3.5 fl oz/A (0.045 lb ai/A) 
a. DO NOT exceed 0.045 lb ai/A per single application 
4) Minimum Application Interval: 14 days 
5) Maximum Annual Rate: 3.5 fl oz/A/year (0.045 lb ai/A) 
b. DO NOT exceed 0.045 lb ai/A/year of bicyclopyrone-containing products. 
6) DO NOT make more than 2 applications of SYN-A16003 Herbicide per year. 
7) DO NOT make more than 1 postemergence application per year. 
8) DO NOT feed or harvest forage or sweet corn ears within 45 days after application. 
9) Pre-harvest Interval (PHI): Not Applicable 
 
9.3.2 Tank Mix Combinations for Corn 
Application Tank-Mix Brands Use Directions 
Burndown plus 
residual weed 
control 
Gramoxone® brands 
Glyphosate brands 
Roundup® brands 
Dicamba brands 
2,4-D brands 
 
 
For improved broadleaf weed control with 
limited residual control prior to planting corn 
and before corn emergence. 
 
Use the adjuvant system specified by the 
burndown herbicide. 
Preemergence AAtrex® 4L 
AAtrex® Nine-O® 
Bicep II Magnum® 
Bicep Lite II Magnum® 
Dual II Magnum® 
Princep® 4L 
Princep® Caliber® 90 
These tank mixes may be used for 
preemergence residual weed control. 
Postemergence 
 
AAtrex4L 
AAtrex Nine-O 
Bicep II Magnum 
Bicep Lite II Magnum 
Peak® 
 
Apply these tank mixtures for improved 
postemergence weed control. 
 
Postemergence 
application to 
Glyphosate 
Resistant Corn 
 
Glyphosate brands 
Roundup brands 
For use only in glyphosate resistant corn. 
 
Add spray-grade ammonium sulfate (AMS) 
at a rate that delivers 8.5-17.0 lb of 
AMS/100 gallons of water. 
 
DO NOT add urea ammonium nitrate (UAN) 
or methylated seed oil (MSO) type 
adjuvants to this tank mixture or crop injury 
may occur. 
 
Application to corn that is not resistant to 
glyphosate will result in crop death. 
Postemergence 
Application to 
Glufosinate 
Resistant Corn 
Liberty® Use this tank mixture only on glufosinate 
resistant corn. 
 
DO NOT use crop oil concentrate (COC) as 
an adjuvant for this mixture or severe crop 
injury may occur.

Application to corn that is not resistant to 
glufosinate will result in crop death. 
Tank Mix Product Information: 
 Refer to Section 12.1 for tank mix product information. 
Precautions: 
 Severe corn injury resulting in yield loss may occur if SYN-A16003 Herbicide is applied foliar 
postemergence to corn in a tank mix with any organophosphate or carbamate insecticide. 
TANK-MIX USE RESTRICTIONS 
1) All use restrictions cited in Section 9.1.1 for SYN-A16003 Herbicide solo apply to tank mixtures. 
2) For all tank mixtures, refer to individual product labels for precautionary statements, restrictions, rates, 
approved uses, rotational restrictions and a list of weeds controlled. Follow the most restrictive label. 
3) DO NOT add urea ammonium nitrate (UAN) or methylated seed oil (MSO) type adjuvants to this tank 
mixture or crop injury may occur. 
4) Unless specified otherwise, DO NOT apply SYN-A16003 Herbicide postemergence in corn at less than 
3.5 fl oz/A-(0.045 lb ai/A). 
5) DO NOT apply SYN-A16003 Herbicide postemergence in a tank mix with emulsifiable concentrate grass 
herbicides, unless specifically instructed to do so, or injury may occur. 
 
9.4 Garlic 
Crop 
Garlic 
Application 
Timing 
Rate 
fl oz/A 
[lb ai/A] 
Use Directions 
Preplant 2.6 - 3.5 
[0.034-0.045] 
Apply before transplanting garlic. 
 
Minimize the movement of treated soil during the 
transplanting process. If a significant amount of treated 
soil is moved, weed control in the garlic row will be 
reduced. 
Row Middle or 
Post-Directed 
 
3.5 
[0.045] 
Apply after transplanting as either a row middle or post-
directed application. 
 
Avoid contacting the garlic foliage during application or 
crop injury will occur. 
 
Using a hooded or shielded sprayer will minimize 
potential crop injury when applying as row middle or post-
directed applications. 
 
Add a nonionic surfactant (NIS) at 1 qt/100 gallons of 
water (0.25% v/v) or a crop oil concentrate (COC) at the 
rate of 1 gal/100 gallons of water (1.0% v/v). 
 
In addition to NIS or COC, dry spray grade ammonium 
sulfate (AMS) may be added at a rate of 8.5 to 17 lb/gal of 
water. Liquid AMS may be substituted at an equivalent 
rate. The use of AMS will improve the consistency level 
of weed control. 
 
weeds.

For Weed Control: 
 Refer to Section 8.0 for list of weeds controlled or partially controlled. 
Resistance Management: 
 Refer to Section 3.1. 
Precautions: 
 Tank mixtures with other herbicides may increase the risk of crop injury. Before applying these tank 
mixtures, test on a small portion of the field to ensure the mixture will be safe. 
 There is an increased risk of unacceptable crop injury following preplant applications, including stunting 
where herbicide application overlap occurs. 
 Under adverse weather conditions (cool, wet, poor crop growth), temporary crop bleaching may be 
observed following application. 
USE RESTRICTIONS 
1) Refer to Section 7.1 for additional product use restrictions. 
2) Maximum Single Application Rate: 3.5 fl oz/A (0.045 lb ai/A) 
3) Minimum Application Interval: NA 
4) Maximum Annual Rate: 3.5 fl oz/A/year (0.045 lb ai/A) 
a. DO NOT exceed 0.045 lb ai/A/year of bicyclopyrone-containing products. 
5) DO NOT use preemergence on mineral soils. 
6) DO NOT make more than 1 application per crop per year. 
7) Pre-harvest Interval (PHI): 45 days 
 
9.5 Hops 
Crop 
Hops 
Application 
Timing 
Rate 
fl oz/A 
[lb ai/A] 
Use Directions 
Row Middles or 
Post-Directed 
3.5 
[0.045] 
Using a hooded or shielded sprayer will minimize 
potential crop injury when applying as a post-directed 
application. 
 
Add a nonionic surfactant (NIS) at 1 qt/100 gallons of 
water (0.25% v/v) or a crop oil concentrate (COC) at the 
rate of 1 gal/100 gallons of water (1.0% v/v). 
 
In addition to NIS or COC, dry spray grade ammonium 
sulfate (AMS) may be added at a rate of 8.5 to 17 lb/gal of 
water. Liquid AMS may be substituted at an equivalent 
rate. The use of AMS will improve the consistency level 
of weed control. 
 
weeds. 
For Weed Control: 
 Refer to Section 8.0 for list of weeds controlled or partially controlled. 
Resistance Management: 
 Refer to Section 3.1. 
Precautions: 
 Tank mixtures with other herbicides may increase the risk of crop injury. Before applying these tank 
mixtures, test on a small portion of the field to ensure the mixture will be safe. 
 Under adverse weather conditions (cool, wet, poor crop growth), temporary crop bleaching may be 
observed following application.

USE RESTRICTIONS 
1) Refer to Section 7.1 for additional product use restrictions. 
2) Maximum Single Application Rate: 3.5 fl oz/A (0.045 lb ai/A) 
3) Minimum Application Interval: NA 
4) Maximum Annual Rate: 3.5 fl oz/A/year (0.045 lb ai/A) 
a. DO NOT exceed 0.045 lb ai/A/year of bicyclopyrone-containing products. 
5) DO NOT make more than 1 application per crop per year. 
6) Pre-harvest Interval (PHI): 30 days 
 
9.6 Horseradish 
Crop 
Horseradish 
Application 
Timing 
Rate 
fl oz/A 
[lb ai/A] 
Use Directions 
Preemergence 2.6 - 3.5 
[0.034-0.045] 
 
Use the higher rate on 
medium and fine textured 
soils and the lower rate 
on coarse textured soils 
Apply after planting but at least 3 days prior to 
horseradish emergence. 
 
For additional weed control, SYN-A16003 Herbicide can 
be tank mixed with Dual Magnum. 
Row Middle or 
Post-Directed 
3.5 
[0.045] 
Apply after horseradish emergence or up to 30 days after 
emergence as either a row middle or post-directed 
application. 
 
Avoid contacting the horseradish foliage during 
application or crop injury will occur. 
 
Using a hooded or shielded sprayer will minimize crop 
injury when applying as row middle or post-directed 
applications. 
 
Add a nonionic surfactant (NIS) at 1 qt/100 gallons of 
water (0.25% v/v) or a crop oil concentrate (COC) at the 
rate of 1 gal/100 gallons of water (1.0% v/v). 
 
In addition to NIS or COC, dry spray grade ammonium 
sulfate (AMS) may be added at a rate of 8.5 to 17 lb/gal of 
water. Liquid AMS may be substituted at an equivalent 
rate. The use of AMS will improve the consistency level 
of weed control. 
 
weeds. 
For Weed Control: 
 Refer to Section 8.0 for list of weeds controlled or partially controlled. 
Resistance Management: 
 Refer to Section 3.1. 
Precautions: 
 Application at 0-3 days prior to horseradish emergence will result in increased risk of unacceptable crop 
injury. The increased injury risk is attributed to herbicide uptake by crop tissue at the soil surface during 
crop emergence.

If SYN-A16003 Herbicide is applied following the cultural practice of tillage to bury the horseradish plants 
after emergence, significant crop injury can occur. Applying SYN-A16003 Herbicide after this tillage 
practice must be avoided. 
 Preemergence tank mixtures with herbicides other than Dual Magnum increase the risk of crop injury. 
Before applying these tank mixtures, test on a small portion of the field to ensure the mixture will be safe. 
 Avoid preplant incorporation applications or unacceptable crop injury can occur. 
 There is an increased risk of unacceptable crop injury, including stunting where herbicide application 
overlap occurs. 
 Applications in muck soils will result in reduced residual weed control. 
USE RESTRICTIONS 
1) Refer to Section 7.1 for additional product use restrictions. 
2) Maximum Single Application Rate: 3.5 fl oz/A (0.045 lb ai/A) 
3) Minimum Application Interval: NA 
4) Maximum Annual Rate: 3.5 fl oz/A/year (0.045 lb ai/A) 
a. DO NOT exceed 0.045 lb ai/A/year of bicyclopyrone-containing products. 
5) DO NOT make more than 1 application per crop per year. 
6) DO NOT apply SYN-A16003 Herbicide as a preplant incorporated (PPI) treatment. 
7) Unless applying with a hooded or shielded sprayer, DO NOT apply SYN-A16003 Herbicide as a row 
middle or post-directed application when wind will result in drift onto the horseradish row. 
8) Pre-harvest Interval (PHI): NA 
a. DO NOT apply more than 30 days after emergence. 
 
9.7 Lemongrass 
9.7.1 Preplant, Preplant Incorporated or Postemergence Applications 
Crop 
Lemongrass 
Application 
Timing 
Rate 
fl oz/A 
[lb ai/A] 
Use Directions 
Preplant 3.5 
[0.045] 
 
Apply before transplanting lemongrass. 
 
Minimize the movement of treated soil during the 
transplanting process. If a significant amount of 
treated soil is moved, weed control in the 
lemongrass row will be reduced. 
 
Preplant 
Incorporated 
(PPI) 
3.5 
[0.045] 
 
Apply before transplanting lemongrass. 
 
Avoid incorporating to a depth of more than 2 
inches. Weed control can be reduced if the 
incorporation depth is greater than 2 inches. 
 
For best weed control results, preemergence 
applications are more consistent and more effective 
than preplant incorporated applications. 
Postemergence 
 
3.5 
[0.045] 
 
Apply as a broadcast treatment after transplanting 
lemongrass. 
 
Application can also be made to a direct seeded 
crop provided the lemongrass is at least 5 inches in 
height.

Add a nonionic surfactant (NIS) at 1 qt/100 gallons 
of water (0.25% v/v) or a crop oil concentrate 
(COC) at the rate of 1 gal/100 gallons of water 
(1.0% v/v). 
 
In addition to NIS or COC, dry spray grade 
ammonium sulfate (AMS) may be added at a rate of 
8.5 to 17 lb/gal of water. Liquid AMS may be 
substituted at an equivalent rate. The use of AMS 
will improve weed control consistency. 
 
weeds. 
 
For Weed Control: 
 Refer to Section 8.0 for list of weeds controlled or partially controlled. 
 Resistance Management: 
 Refer to Section 3.1. 
Precautions: 
 Preplant, preplant incorporated or preemergence applications to direct seeded lemongrass can 
result in significant injury including stunting and in severe cases, plant death. 
 Applications to muck soils will result in reduced residual weed control. 
 Under adverse weather conditions (cool, wet, poor crop growth), temporary crop bleaching may be 
observed following postemergence application. 
USE RESTRICTIONS 
7) Refer to Section 7.1 for additional product use restrictions. 
8) Maximum Single Application Rate: 3.5 fl oz/A (0.045 lb ai/A) 
a. DO NOT exceed 0.045 lb ai/A per single application 
9) Minimum Application Interval: Not Applicable 
10) Maximum Annual Rate: 3.5 fl oz/A/year (0.045 lb ai/A) 
a. DO NOT exceed 0.045 lb ai/A/year of bicyclopyrone-containing products. 
11) DO NOT make more than 1 application per year. 
12) Pre-harvest Interval (PHI): 60 days

9.8 Onion 
9.8.1 Preemergence, Row Middle or Post-Directed Applications 
Crop 
Onion, dry bulb Onion, green 
Application 
Timing 
Rate 
fl oz/A 
[lb ai/A] 
Use Directions 
Preemergence 2.6 - 3.5 
[0.034-0.045] 
Apply after planting and before onion emergence. 
 
Use on muck soils. Use on mineral soil will result in crop 
injury. 
 
Minimize the movement of treated soil during the 
transplanting process. If a significant amount of treated 
soil is moved, weed control in the lemongrass row will be 
reduced. 
Row Middle or 
Post-Directed 
 
3.5 
[0.045] 
Apply after onion emergence or transplanting as either a 
row middle or post-directed application. 
 
Avoid spray contact with the onion foliage during 
application or crop injury will occur. 
 
Use on muck soils. Use on mineral soil will result in crop 
injury. 
 
Using a hooded or shielded sprayer will minimize 
potential crop injury when applying as row middle or post-
directed applications. 
 
Add a nonionic surfactant (NIS) at 1 qt/100 gallons of 
water (0.25% v/v) or a crop oil concentrate (COC) at the 
rate of 1 gal/100 gallons of water (1.0% v/v). 
 
In addition to NIS or COC, dry spray grade ammonium 
sulfate (AMS) may be added at a rate of 8.5 to 17 lb/gal of 
water. Liquid AMS may be substituted at an equivalent 
rate. The use of AMS will improve the consistency level 
of weed control. 
 
weeds. 
For Weed Control: 
 Refer to Section 8.0 for list of weeds controlled or partially controlled. 
Resistance Management: 
 Refer to Section 3.1. 
Precautions: 
 Tank mixtures with other herbicides may increase the risk of crop injury. Before applying these tank 
mixtures, test on a small portion of the field to ensure the mixture will be safe. 
 There is an increased risk of unacceptable crop injury following preplant applications, including stunting 
where herbicide application overlap occurs. 
 Under adverse weather conditions (cool, wet, poor crop growth), temporary crop bleaching may be 
observed following application.

USE RESTRICTIONS 
1) Refer to Section 7.1 for additional product use restrictions. 
2) Maximum Single Application Rate: 3.5 fl oz/A (0.045 lb ai/A) 
3) Minimum Application Interval: NA 
4) Maximum Annual Rate: 3.5 fl oz/A/year (0.045 lb ai/A) 
a. DO NOT exceed 0.045 lb ai/A/year of bicyclopyrone-containing products. 
5) DO NOT use preemergence on mineral soils. 
6) DO NOT make more than 1 application per crop per year. 
7) Pre-harvest Interval (PHI): 
a. Onion, green: 21 days 
b. Onion, dry bulb:45 days 
 
9.8.2 Postemergence Applications [New York Only] 
Crop 
Onion, dry bulb Onion, green 
Application 
Timing 
Rate 
fl oz/A 
[lb ai/A] 
Use Directions 
Postemergence 
 
2.6 - 3.5 
[0.034-0.045] 
 
[For postemergence weed control in New York only.] 
 
Apply as a broadcast treatment after transplanting onion. 
 
For additional residual control, SYN-A16003 Herbicide 
can be tank mixed with Dual Magnum. 
 
Add a nonionic surfactant (NIS) at 1 qt/100 gallons of 
water (0.25% v/v) or a crop oil concentrate (COC) at the 
rate of 1 gal/100 gallons of water (1.0% v/v). 
 
weeds. 
 
For Weed Control: 
 Refer to Section 8.0 for list of weeds controlled or partially controlled. 
Resistance Management: 
 Refer to Section 3.1.

Precautions: 
 Tank mixtures with other herbicides may increase the risk of crop injury. Before applying these tank 
mixtures, test on a small portion of the field to ensure the mixture will be safe. 
 There is an increased risk of unacceptable crop injury following preplant applications, including stunting 
where herbicide application overlap occurs. 
 Under adverse weather conditions (cool, wet, poor crop growth), temporary crop bleaching may be 
observed following application. 
USE RESTRICTIONS 
1) Refer to Section 7.1 for additional product use restrictions. 
2) Maximum Single Application Rate: 3.5 fl oz/A (0.045 lb ai/A) 
3) Minimum Application Interval: NA 
4) Maximum Annual Rate: 3.5 fl oz/A/year (0.045 lb ai/A) 
a. DO NOT exceed 0.045 lb ai/A/year of bicyclopyrone-containing products. 
5) DO NOT make more than 1 application per crop per year. 
6) Pre-harvest Interval (PHI): 
a. Onion, green: 21 days 
b. Onion, dry bulb:45 days 
 
9.9 Rosemary 
9.9.1 Preplant, Preplant Incorporated or Postemergence Applications 
Crop 
Rosemary 
Application 
Timing 
Rate 
fl oz/A 
[lb ai/A] 
Use Directions 
Preplant 3.5 
[0.045] 
 
Apply before transplanting rosemary. 
 
Minimize the movement of treated soil during the 
transplanting process. If a significant amount of 
treated soil is moved, weed control in the Rosemary 
row will be reduced. 
 
Preplant 
Incorporated 
(PPI) 
3.5 
[0.045] 
 
Apply before transplanting rosemary. 
 
Avoid incorporating to a depth of more than 2 
inches. Weed control will be reduced if the 
incorporation depth is greater than 2 inches. 
 
For best weed control results, preemergence 
applications are more consistent and more effective 
than preplant incorporated applications. 
Postemergence 
 
3.5 
[0.045] 
 
Apply as a broadcast treatment after transplanting 
rosemary. 
 
Application can also be made to a direct seeded 
crop provided the rosemary is at least 4 inches tall. 
 
Add a nonionic surfactant (NIS) at 1 qt/100 gallons 
of water (0.25% v/v) or a crop oil concentrate 
(COC) at the rate of 1 gal/100 gallons of water 
(1.0% v/v).

When using NIS, Dry spray grade ammonium 
sulfate (AMS) may be added at a rate of 8.5 to 17 
lb/gal of water. 
 
Where AMS is used, liquid AMS may be substituted 
at an equivalent rate. The use of AMS with NIS will 
improve the consistency level of weed control. 
 
 
weeds. 
 
For Weed Control: 
 Refer to Section 8.0 for list of weeds controlled or partially controlled. 
 Resistance Management: 
 Refer to Section 3.1. 
Precautions: 
 Preplant, preplant incorporated or preemergence applications to direct seeded rosemary can 
result in significant injury including stunting and in severe cases, plant death. 
 Crop oil concentrate (COC) tends to provide better weed control and consistency compared to 
nonionic surfactant (NIS) but COC will provide a higher risk for leaf burn. If crop injury occurs from 
an application including COC, the plants will recover. 
 The use of crop oil concentrate (COC) plus ammonium sulfate (AMS) provides a higher risk of crop 
injury that COC alone. If COC plus AMS is applied with SYN-A16003 Herbicide, crop injury 
including leaf burn and plant stunting can occur. 
 Applications to muck soils will result in reduced residual weed control. 
 Under adverse weather conditions (cool, wet, poor crop growth), temporary crop bleaching may be 
observed following postemergence application. 
USE RESTRICTIONS 
1) Refer to Section 7.1 for additional product use restrictions. 
2) Maximum Single Application Rate: 3.5 fl oz/A (0.045 lb ai/A) 
a. DO NOT exceed 0.045 lb ai/A per single application 
3) Minimum Application Interval: Not Applicable 
4) Maximum Annual Rate: 3.5 fl oz/A/year (0.045 lb ai/A) 
a. DO NOT exceed 0.045 lb ai/A/year of bicyclopyrone-containing products. 
5) DO NOT make more than 1 application per year. 
6) Pre-harvest Interval (PHI): 60 days 
 
 
9.10 Strawberry 
Crop 
Strawberry 
Application 
Timing 
Rate 
fl oz/A 
[lb ai/A] 
Use Directions 
Row Middle or 
Post-Directed 
 
3.5 
[0.045] 
Apply after strawberry emergence or transplanting as 
either a row middle or post-directed application. 
 
Avoid contacting the crop with direct or indirect spray or 
crop injury will occur.

Using a hooded or shielded sprayer will minimize 
potential crop injury when applying as a post-directed 
application. 
 
Add a nonionic surfactant (NIS) at 1 qt/100 gallons of 
water (0.25% v/v) or a crop oil concentrate (COC) at the 
rate of 1 gal/100 gallons of water (1.0% v/v). 
 
In addition to NIS or COC, dry spray grade ammonium 
sulfate (AMS) may be added at a rate of 8.5 to 17 lb/gal 
of water. Liquid AMS may be substituted at an equivalent 
rate. The use of AMS will improve the consistency level 
of weed control. 
 
For optimal contr
weeds. 
For Weed Control: 
 Refer to Section 8.0 for list of weeds controlled or partially controlled. 
Resistance Management: 
 Refer to Section 3.1. 
Precautions: 
 Tank mixtures with other herbicides may increase the risk of crop injury. Before applying these tank 
mixtures, test on a small portion of the field to ensure the mixture will be safe. 
 Under adverse weather conditions (cool, wet, poor crop growth), temporary crop bleaching may be 
observed following application. 
USE RESTRICTIONS 
1) Refer to Section 7.1 for additional product use restrictions. 
2) Maximum Single Application Rate: 3.5 fl oz/A (0.045 lb ai/A) 
3) Minimum Application Interval: NA 
4) Maximum Annual Rate: 3.5 fl oz/A/year (0.045 lb ai/A) 
a. DO NOT exceed 0.045 lb ai/A/year of bicyclopyrone-containing products. 
5) DO NOT allow direct or indirect spray to contact plant foliage. 
6) DO NOT make more than 1 application per crop per year. 
7) Pre-harvest Interval (PHI): 30 days 
 
9.11 Sweet Potato 
Crop 
Sweet potato 
Application 
Timing 
Rate 
fl oz/A 
[lb ai/A] 
Use Directions 
Pre-Transplant 2.6 - 3.5 
[0.034-0.045] 
 
Use the 3.5 fl oz/A on 
medium and fine textured 
soils and 2.6 fl oz/A on 
coarse textured soils 
 
Apply before transplanting sweet potato. 
 
Minimize the movement of treated soil during the 
transplanting process. If a significant amount of treated 
soil is moved, weed control in the sweet potato row will be 
reduced. 
 
For best results, apply irrigation prior to transplanting and 
avoid tillage after application.

Exposed sweet potato roots could result in unacceptable 
crop injury if irrigation or rainfall moves the herbicide into 
the root zone. 
Row Middle 
 
2.6 - 3.5 
[0.034-0.045] 
 
Use the 3.5 fl oz/A on 
medium and fine textured 
soils and 2.6 fl oz/A on 
coarse textured soils 
Apply after transplanting to row middles. 
 
Avoid contacting the sweet potato foliage during 
application or crop injury will occur. 
 
Using a hooded or shielded sprayer will minimize crop 
injury when applying as row middle treatment. 
 
Add a nonionic surfactant (NIS) at 1 qt/100 gallons of 
water (0.25% v/v) or a crop oil concentrate (COC) at the 
rate of 1 gal/100 gallons of water (1.0% v/v). 
 
weeds. 
 
For Weed Control: 
 Refer to Section 8.0 for list of weeds controlled or partially controlled. 
Resistance Management: 
 Refer to Section 3.1. 
Precautions: 
 The 3.5 fl oz/A rate may be used on coarse textured soils for extended weed control but the risk for 
unacceptable crop injury is higher than with the 2.6 fl oz/A rate. 
 If sweet potato roots are not sealed prior to herbicide application, irrigation or rainfall within 2-3 days after 
application increases the risk of unacceptable crop injury. 
 Application to sweet potatoes grown on sandy loam soils with <1% organic matter (OM) are at a higher 
risk for unacceptable crop injury than soils with >1% OM. 
 Tank mixtures with other herbicides may increase the risk of crop injury. Before applying these tank 
mixtures, test on a small portion of the field to ensure the mixture will be safe. 
 Under adverse weather conditions (cool, wet, poor crop growth), temporary crop bleaching may be 
observed following application. 
USE RESTRICTIONS 
1) Refer to Section 7.1 for additional product use restrictions. 
2) Maximum Single Application Rate: 3.5 fl oz/A (0.045 lb ai/A) 
3) Minimum Application Interval: NA 
4) Maximum Annual Rate: 3.5 fl oz/A/year (0.045 lb ai/A) 
a. DO NOT exceed 0.045 lb ai/A/year of bicyclopyrone-containing products. 
5) DO NOT make more than 1 application per crop per year. 
6) DO NOT apply to sweet potatoes grown on sand or loamy sand soils with <1% organic matter (OM). 
7) DO NOT apply to greenhouse grown transplants. 
8) Pre-harvest Interval (PHI): 60 days

9.12 Timothy grown for seed 
Crop 
Timothy grown for seed 
Application 
Timing 
Rate 
fl oz/A 
[lb ai/A] 
Use Directions 
Preplant 3.5 
[0.045] 
Apply prior to planting. 
 
Minimize the movement of treated soil during the planting 
process. If a significant amount of treated soil is moved, 
weed control in the crop row will be reduced. 
Preemergence 3.5 
[0.045] 
Apply after planting but prior to crop emergence. 
Postemergence 3.5 
[0.045] 
Apply as a broadcast treatment when timothy grown for 
seed has a minimum of 2 leaves but before timothy 
 
 
Add a nonionic surfactant (NIS) at 1 qt/100 gallons of 
water (0.25% v/v) or a crop oil concentrate (COC) at the 
rate of 1 gal/100 gallons of water (1.0% v/v). 
 
weeds. 
For Weed Control: 
 Refer to Section 8.0 for list of weeds controlled or partially controlled. 
Resistance Management: 
 Refer to Section 3.1. 
Precautions: 
 Avoid preplant incorporation applications or unacceptable crop injury can occur. 
 Temporary crop bleaching and/or stunting may be observed after application to cool, wet soils or during 
poor crop growth. 
 Tank mixtures with other herbicides may increase the risk of crop injury. Before applying these tank 
mixtures, test on a small portion of the field to ensure the mixture will be safe. 
 Crop oil concentrate (COC) provides increased and more consistent weed control compared to non-ionic 
surfactant (NIS) but COC will provide a higher risk for temporary leaf burn. 
 Adding a nitrogen-containing fertilizer to a postemergence application of SYN-A16003 may cause 
temporary crop bleaching or leaf burn. 
 There is an increased risk of temporary crop injury where herbicide application overlap occurs. 
 Applications to muck soils will result in reduced residual weed control. 
USE RESTRICTIONS 
1) Refer to Section 7.1 for additional product use restrictions. 
2) Maximum Single Application Rate: 3.5 fl oz/A (0.045 lb ai/A) 
3) Minimum Application Interval: NA 
4) Maximum Annual Rate: 3.5 fl oz/A/year (0.045 lb ai/A) 
a. DO NOT exceed 0.045 lb ai/A/year of bicyclopyrone-containing products. 
5) DO NOT make more than 1 application per crop per year. 
6) Pre-harvest Interval (PHI): NA 
a. DO NOT .

9.13 Watermelon 
Crop 
Watermelon 
Application 
Timing 
Rate 
fl oz/A 
[lb ai/A] 
Use Directions 
Pre-Transplant 3.5 
[0.045] 
Apply before transplanting watermelon. 
 
Minimize the movement of treated soil during the 
transplanting process. If a significant amount of treated 
soil is moved, weed control in the watermelon row will be 
reduced. 
Row Middle 2.6 - 3.5 
[0.034-0.045] 
 
Apply to row middles of watermelon. 
 
Avoid contacting the watermelon foliage during 
application or crop injury will occur. 
 
Using a hooded or shielded sprayer will minimize crop 
injury when applying as row middle treatment. 
 
Add a nonionic surfactant (NIS) at 1 qt/100 gallons of 
water (0.25% v/v) or a crop oil concentrate (COC) at the 
rate of 1 gal/100 gallons of water (1.0% v/v). 
 
weeds. 
For Weed Control: 
 Refer to Section 8.0 for list of weeds controlled or partially controlled. 
Resistance Management: 
 Refer to Section 3.1. 
Precautions: 
 Preemergence tank mixtures with other herbicides may increase the risk of crop injury. Before applying 
these tank mixtures, test on a small portion of the field to ensure the mixture will be safe. 
 There is an increased risk of unacceptable crop injury following preplant applications, including stunting 
where herbicide application overlap occurs. 
 Under adverse weather conditions (cool, wet, poor crop growth), temporary crop bleaching may be 
observed following application. 
USE RESTRICTIONS 
1) Refer to Section 7.1 for additional product use restrictions. 
2) Maximum Single Application Rate: 3.5 fl oz/A (0.045 lb ai/A) 
3) Minimum Application Interval: NA 
4) Maximum Annual Rate: 3.5 fl oz/A/year (0.045 lb ai/A) 
a. DO NOT exceed 0.045 lb ai/A/year of bicyclopyrone-containing products. 
5) DO NOT make more than 1 application per crop per year. 
6) Pre-harvest Interval (PHI): 14 days

9.14 Wormwood 
9.14.1 Pre-Greenup, Post-Greenup or Postemergence Applications 
Crop 
Wormwood 
Application 
Timing 
Rate 
fl oz/A 
[lb ai/A] 
Use Directions 
Pre-Greenup or 
Post-Greenup 
on Established 
Wormwood 
3.5 
[0.045] 
Apply to wormwood that has been established for at 
least one year. 
 
Make the pre-Greenup application while wormwood 
is dormant and prior to spring green up. 
 
Make the post-Greenup application after wormwood 
has broken dormancy. 
 
If weeds are emerged at the time application, add a 
nonionic surfactant (NIS) at 1 qt/100 gallons of 
water (0.25% v/v) or a crop oil concentrate (COC) 
at the rate of 1 gal/100 gallons of water (1.0% v/v). 
 
In addition to NIS or COC, dry spray grade 
ammonium sulfate (AMS) may be added at a rate of 
8.5 to 17 lb/gal of water. The use of AMS will 
improve the weed control consistency versus NIS 
or COC alone. 
 
weeds. 
 
Postemergence 
on Newly Planted 
Wormwood 
 
3.5 
[0.045] 
A newly planted crop is any wormwood that is less 
than one year old. 
 
 
 
If weeds are emerged at the time application, add a 
nonionic surfactant (NIS) at 1 qt/100 gallons of 
water (0.25% v/v) or a crop oil concentrate (COC) 
at the rate of 1 gal/100 gallons of water (1.0% v/v). 
 
In addition to NIS or COC, dry spray grade 
ammonium sulfate (AMS) may be added at a rate of 
8.5 to 17 lb/gal of water. The use of AMS will 
improve the weed control consistency versus NIS 
or COC alone. 
 
For best optimal control, make application to small 
 
 
For Weed Control: 
 Refer to Section 8.0 for list of weeds controlled or partially controlled. 
 Resistance Management: 
 Refer to Section 3.1. 
Precautions:

Preplant incorporated or preemergence applications at the time of wormwood planting can result in 
significant injury including stunting and in severe cases, plant death. 
 For newly planted wormwood postemergence applications, the use of ammonium sulfate (AMS) 
will improve the level and consistency of weed control but will also increase the risk of crop injury. 
 For fall planted crops, the use of AMS in the fall is of higher risk than a spring application. 
 For newly planted wormwood, there is an increased risk of postemergence crop injury, including 
stunting where herbicide application overlap occurs. The wormwood plants will fully recover. 
 Applications to muck soils will result in reduced residual weed control. 
 Under adverse weather conditions (cool, wet, poor crop growth), temporary crop bleaching may be 
observed following postemergence application. 
USE RESTRICTIONS 
1) Refer to Section 7.1 for additional product use restrictions. 
2) Maximum Single Application Rate: 3.5 fl oz/A (0.045 lb ai/A) 
a. DO NOT exceed 0.045 lb ai/A per single application 
3) Minimum Application Interval: Not Applicable 
4) Maximum Annual Rate: 3.5 fl oz/A/year (0.045 lb ai/A) 
a. DO NOT exceed 0.045 lb ai/A/year of bicyclopyrone-containing products. 
5) DO NOT make more than 1 application per year. 
6) Pre-harvest Interval (PHI): 60 days 
 
10.0 STORAGE AND DISPOSAL 
DO NOT contaminate water, food, or feed by storage and disposal. 
 
Pesticide Storage 
Keep container tightly closed when not in use. DO NOT store near seeds, fertilizers, or 
foodstuffs. Keep away from heat and flame. 
 
Pesticide Disposal 
Open dumping is prohibited. Waste resulting from the use of this product may be disposed of 
on site or at an approved waste disposal facility. 
 
Container Handling [less than or equal to 5 gallons] 
Non-refillable container. DO NOT reuse or refill this container. Triple rinse container (or 
equivalent) promptly after emptying. Triple rinse as follows: Empty the remaining contents 
into application equipment or 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 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 allowed 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 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 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 allowed 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 contain spills, leaks, and other accidents to prevent further 
exposure of facilities and equipment. Absorb spilled product with absorbing materials and 
dispose of in an approved waste disposal facility. In the event of a major spill, fire, or other 
emergency, call 1-800-888-8372, day or night. 
 
CONTAINER IS NOT SAFE FOR FOOD, FEED OR DRINKING WATER. 
 
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. 
 
12.0 APPENDIX 
12.1 Tank Mix Product Information 
Product Name EPA Reg. No. Active Ingredient(s) 
AAtrex 4L 100-497 Atrazine 
Aatrex Nine-O 100-585 Atrazine 
Bicep II Magnum 100-817 Atrazine, S-metolachlor 
Bicep Lite II Magnum 100-827 Atrazine, S-metolachlor 
Dual II Magnum 100-818 S-metolachlor 
Princep 4L 100-526 Simazine 
Princep Caliber 90 100-603 Simazine 
Peak 100-763 Prosulfuron 
Liberty 264-829 Glufosinate ammonium

12.2 SYN-A16003 Herbicide Use Summary Table [Optional Text] 
[Start of Optional Text] 
IMPORTANT: The table below is a summary of the Crop Use Directions for 
SYN-A16003 Herbicide However, it is important for the user to read and 
follow the complete instructions contained within this label. 
NA = Not Applicable 
Crop or Crop 
Group 
Subgroup 
with 
examples 
Maximum 
Rate Per 
Application 
(lb ai/A) 
Maximum 
Rate Per 
Application 
(fl oz/A) 
Maximum 
Annual 
Application 
Rate (lb 
ai/A/year) 
Maximum 
Annual 
Application 
Rate 
(fl oz) 
Minimum 
Application 
Interval 
Days 
Pre-Harvest 
Interval (PHI) 
Days 
Banana 0.045 3.5 0.045 3.5 NA 1 
Broccoli 0.045 3.5 0.045 3.5 NA 14 
Corn 0.045 3.5 0.045 3.5 14 45 
Garlic 0.045 3.5 0.045 3.5 NA 45 
Hops 0.045 3.5 0.045 3.5 NA 30 
Horseradish 0.045 3.5 0.045 3.5 NA NA 
Onion (dry 
bulb) 
0.045 3.5 0.045 3.5 NA 45 
Onion 
(green) 
0.045 3.5 0.045 3.5 NA 21 
Papaya 0.045 3.5 0.045 3.5 NA 1 
Plantain 0.045 3.5 0.045 3.5 NA 1 
Strawberry 0.045 3.5 0.045 3.5 NA 30 
Sweet 
Potato 
0.045 3.5 0.045 3.5 NA 60 
Timothy 
grown for 
seed 
0.045 3.5 0.045 3.5 NA NA 
Watermelon 0.045 3.5 0.045 3.5 NA 14 
 
[End of Optional Text]

AAtrex®, AAtrex® Nine-O®, Bicep II Magnum®, Bicep Lite II Magnum®, Dual II Magnum®, 
Gramoxone®, Peak®, Princep®, Princep® Caliber® 90, the ALLIANCE FRAME, the 
SYNGENTA Logo and the PURPOSE ICON are Trademarks of a Syngenta Company 
 
Viton is a trademark of The Chemours Company FC, LLC Viton® is a trademark of E. I. du 
Pont de Nemours and Company 
 
Liberty® is a trademark of BASF Ag Products 
 
Roundup® is a trademark of Monsanto Company 
 
©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 
 
SYN-A16003 Herbicide 1465 MAS 0322.AMEND-B.JUL2022-HI - di 11/14/2023 
000100-01465B.SYN-A16003-HERB.AMEND.JUL2022-HI