crop-chem-docs/corpus/epa_ppls/264-1064.md

# WG 63 HERBICIDE

- EPA Reg No: **264-1064**
- Registrant: BAYER CROPSCIENCE, LLC
- Signal word: Warning
- Active ingredients: Thiencarbazone-methyl (21%)
- Label accepted: 2026-02-10
- Source PDF: https://www3.epa.gov/pesticides/chem_search/ppls/000264-01064-20260210.pdf

---
F
ebruary 10, 2026 
Art
hur Toscano 
Senior Regulatory Affairs Manager 
Bayer Crop Science LLC 
700 Chesterfield Pkwy W 
Chesterfield, MO 63017 
Su
bject: Label Amendment - Registration Review Mitigation for Thiencarbazone-methyl 
Product Name: WG 63 Herbicide 
E
PA Registration Number: 264-1064 
Case Number: 475207 
Application Date: 10/26/2020 
Dear Arthur Toscano: 
The Agency, in accordance with the Federal Insecticide, Fungicide, and Rodenticide Act (FIFRA), 
as amended, has completed reviewing all the information submitted with your application to 
support the Registration Review of the above referenced product in connection with the 
Thiencarbazone-methyl Interim Decision, and has concluded that your submission is 
acceptable. The label referred to above, submitted in connection with registration under FIFRA, 
as amended, is acceptable. 
Should you wish to add/retain a reference to the company’s website on your label, then please 
be aware that the website becomes labeling under the Federal Insecticide, Fungicide, and 
Rodenticide Act and is subject to review by the Agency. If the website is false or misleading, the 
product would be misbranded and unlawful to sell or distribute under FIFRA section 12(a)(1)(E). 
40 CFR 156.10(a)(5) list examples of statements EPA may consider false or misleading. In 
addition, regardless of whether a website is referenced on your product’s label, claims made on 
the website may not substantially differ from those claims approved through the registration 
process. Therefore, should the Agency find or if it is brought to our attention that a website 
contains false or misleading statements or claims substantially differing from the EPA approved 
registration, the website will be referred to the EPA’s Office of Enforcement and Compliance 
Assurance. 
A
 stamped copy of your labeling is enclosed for your records. This labeling supersedes 
all previously accepted labeling and must be used at your next label printing. You must 
submit one copy of the final printed labeling before you release the product for

Page 2 of 2 
EPA Reg. No. 264-1064 
Case No. 475207 
 
shipment with the new labeling. In accordance with 40 CFR 152.130(c), you may 
distribute or sell this product under the previously approved labeling for 12 months 
from the date of this letter. After 12 months, you may only distribute or sell this 
product if it bears this new revised labeling or subsequently approved labeling. “To 
distribute or sell” is defined under FIFRA section 2(gg) and its implementing regulation 
at 40 CFR 152.3. 
 
If you have any questions about this letter, please contact Lauren Weissenborn by email at 
weissenborn.lauren@epa.gov. 
 
 Sincerely, 
 
 
Cathryn Britton 
Chief, Risk Management and Implementation 
Branch V 
Pesticide Re-evaluation Division (7508M) 
Office of Pesticide Programs 
 
 
ENCLOSURE: Stamped label

1 
WG 63 Herbicide 
For selective control of weeds in corn.
ACTIVE INGREDIENT: 
THIENCARBAZONE-METHYL* * 
(Methyl 4-[[[(4,5-dihydro-3-methoxy-4-methyl-5-oxo-1H-1,2,4-triazol-1-yl)carbonyl]amino]sulfonyl]-5-
methyl-3-thiophenecarboxylate)............................................................................................................................................ 21.0 
OTHER INGREDIENTS: ................................................................................................................................................79.0
TOTAL:………………………………………………………………………………………………………………………….100.0%
*THIENCARBAZONE-METHYL Herbicide is formulated as a water dispersible granule containing the active ingredient 
THIENCARBAZONE-METHYL at a total of 21% by weight. 
EPA Reg. No. 264-1064 EPA Est. No. 264-MO-02
KEEP OUT OF REACH OF CHILDREN
WARNING/AVISO
Si usted no entiende la etiqueta, busque a alguien para que se la explique a usted en detalle.
(If you do not understand the label, find someone to explain it to you in detail.)
For MEDICAL And TRANSPORTATION Emergencies ONLY Call 24 Hours A Day 1-800-334-7577
For PRODUCT USE Information Call 1-800-331-2867
Please refer to back panel for additional precautionary statements and directions for use. [Note to reviewer: 
Location of additional precautionary statements and directions for use will vary between those listed, depending 
on container type/size.]
Net Contents: 
[Batch Code:]
Produced for
Bayer CropScience LLC
800 N. Lindbergh Blvd.
St. Louis, MO 63167
1-866-99BAYER (1-866-992-2937)
THIENCARBAZONE-METHYL GROUP 2 HERBICIDE
02/10/2026
264-1064

2 
 
FIRST AID 
IF IN EYES: x Hold eye open and rinse slowly and gently with water for 15-20 minutes. 
x Remove contact lenses, if present, after the first 5 minutes, then continue rinsing eye. 
x Call a poison control center or doctor for treatment advice. 
IF ON SKIN OR 
CLOTHING: 
x Take off contaminated clothing. 
x Rinse skin immediately with plenty of water for 15 – 20 minutes. 
x Call a poison control center or doctor for treatment advice. 
IF SWALLOWED: x Call a poison control center or doctor. 
x Have person sip a glass of water if able to swallow. 
x DO NOT induce vomiting unless told to do so by a poison control center or doctor. 
x DO NOT give anything by mouth to an unconscious person. 
IF INHALED: x Move person to fresh air. 
x If person is not breathing, call 911 or an ambulance, then give artificial respiration, preferably by mouth-to-
mouth, if possible. 
x Call a poison control center or doctor for treatment advice. 
NOTE TO PHYSICIAN: No specific antidote is available. All treatments should be based on observed signs and symptoms of distress 
in the patient. Overexposure to materials other than this product may have occurred. 
Have the product container or label with you when calling a poison control center or doctor or going for treatment. 
PRECAUTIONARY STATEMENTS 
HAZARD TO HUMANS AND DOMESTIC ANIMALS 
WARNING 
Causes substantial but temporary eye injury. Harmful if absorbed through skin. Harmful if swallowed. Do not get in eyes or clothing. Wear 
protective eyewear (goggles, face shield, or safety glasses). Wash thoroughly with soap and water after handling and before eat ing, 
drinking, chewing gum, using tobacco, or using the toilet. Remove and wash contaminated clothing before reuse. 
PERSONAL PROTECTIVE EQUIPMENT (PPE) 
Applicators and other handlers must wear: 
x Long-sleeved shirt and long pants 
x Shoes plus socks 
x Chemical- UHVLVWDQWJORYHVPDGHRIZDWHUSURRIPDWHULDOEDUULHUODPLQDWHEXW\OUXEEHU•PLOVQDWXUDOUXEEHU•PLOVQHRSUHQH
UXEEHU•PLOVQLWULOHUXEEHU•PLOVSRO\HWK\OHQHSRO\YLQ\OFKORULGH39&•PLOVRUYLWRQ•PLOV 
x Protective eye wear (goggles, face shield, or safety glasses) 
Follow manufacturer's instructions for cleaning/maintaining PPE. If no such instructions for washable exist, use detergent and hot water. 
Keep and wash PPE separately from other laundry. 
 
ENGINEERING CONTROLS 
When handlers use closed systems, enclosed cabs or aircraft in a manner that meets the requirements listed in the Worker Protec tion 
Standard (WPS) for agricultural pesticides [(40 CFR §170.607(d-f)], the handler PPE requirements may be reduced or modified as 
specified in the WPS. 
USER SAFETY RECOMMENDATIONS 
x Remove clothing/PPE immediately if pesticide gets inside. Then wash thoroughly and put on clean clothing. 
x 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. 
 
ENVIRONMENTAL HAZARDS 
Do not apply directly to water or to areas where surface water is present or to intertidal areas below the mean high water mark . Do not 
contaminate water when disposing of equipment washwater or rinsate. 
 
NON-TARGET ORGANISM ADVISORY 
This product is toxic to plants and may adversely impact the forage and habitat of non-target organisms, including pollinators, in areas 
adjacent to the treated site. Protect the forage and habitat of non-target organisms by following label directions intended to minimize 
spray drift.

3 
 
 
SURFACE WATER ADVISORY 
This product may impact surface water quality due to runoff of rain water. This is especially true for poorly draining soils and soils with 
shallow ground water. This product is classified as having high potential for reaching surface water via runoff for several days 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 thiencarbazone-methyl from runoff water and sediment. Runoff of this 
product will be reduced by avoiding applications when rainfall or irrigation is expected to occur within 48 hours. 
 
GROUND WATER ADVISORY 
This chemical has properties and characteristics associated with chemicals detected in ground water. This chemical may leach in to 
ground water if used in areas where soils are permeable, particularly where the water table is shallow. 
 
ENDANGERED AND THREATENED SPECIES PROTECTION REQUIREMENTS 
Before using this product, you must obtain any applicable Endangered Species Protection Bulletins (‘Bulletins’) within six months prior 
to or on the day of application. To obtain Bulletins, go to Bulletins Live! Two (BLT) at https://www.epa.gov/pesticides/bulletins. When 
using this product, you must follow all directions and restrictions contained in any applicable Bulletin(s) for the area where you are 
applying the product, including any restrictions on application timing if applicable. It is a violation of Federal law to use this product in a 
manner inconsistent with its labeling, including this labeling instruction to follow all directions and restrictions contained in any 
applicable Bulletin(s). For general questions or technical help, call 1-844-447-3813, or email ESPP@epa.gov.

4 
 
DIRECTIONS FOR USE 
It is a violation of Federal law to use this product in a manner inconsistent with its labeling. 
Read entire label before using 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 same area during application. For any requirements specific to your State or Tribe, consult the agency responsible for pesticides. 
Do not drain or rinse equipment near desirable vegetation. 
Avoid spray drift from treated area. Refer to the Spray Drift Management section of this label for additional information. 
Non-target plants may be adversely affected if the pesticide is allowed to drift from areas of application. To prevent damage to crops and 
other desirable plants, read and follow all directions and precautions on this label before using. 
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 
intervals. The requirements in this box only apply to uses of this product that are covered by the Worker Protection Standard. 
Do not enter or allow worker entry into treated areas during the restricted entry interval (REI) of 12 hours. 
PPE required for early entry to treated areas that is permitted under the Worker Protection Standard and that involves contact 
with anything that has been treated such as plants, soil or water, is: 
x Coveralls over long-sleeved shirt and long pants 
x Shoes plus socks 
x Chemical- UHVLVWDQWJORYHVPDGHRIZDWHUSURRIPDWHULDOEDUULHUODPLQDWHEXW\OUXEEHU•PLOVQDWXUDOUXEEHU•PLOVQHRSUHQH
UXEEHU•PLOVQLWULOHUXEEHU•PLOVSRO\HWK\OHQHSRO\YLQ\OFKORULGH39&•PLOVRUYLWRQ•PLOV 
x Protective eyewear 
 
NON-AGRICULTURAL USE REQUIREMENTS 
The requirements in this box apply to uses of this product that are not within the scope of the Worker Protection Standard for agricultural 
pesticides (40 CFR Part 170). The WPS applies when this product is used to produce agricultural plants on farms, forests, nurse ries, or 
greenhouses. Keep unprotected persons out of the treated areas until sprays have dried. 
 
USE INFORMATION 
WG 63 Herbicide is a selective herbicide for control of important broadleaf and grassy weeds infesting field corn, sweet corn and 
popcorn. WG 63 Herbicide can be used in corn grown for silage, grain or seed. WG 63 Herbicide can be applied for post harvest or 
postemergence uses. 
 
WG 63 Herbicide is effective in controlling triazine resistant populations of weed species which are listed in the “BROADLEAF AND 
GRASS WEEDS CONTROLLED BY WG 63 HERBICIDE” tables below on this label.
 
 
Corn hybrids and certain male pollinators within blended corn varieties vary in their response to WG 63 Herbicide. Not all hybrids or 
male pollinators within blended corn varieties have been tested for sensitivity to WG 63 Herbicide. You should consult with your seed 
provider, your local Bayer CropScience representative and/or other knowledgeable agricultural professionals for advice on tolerance of 
hybrids or varieties containing male pollinator lines before applying WG 63 Herbicide. If the tolerance of a hybrid or variety containing 
male pollinator lines is not known, you should apply WG 63 Herbicide to a small area to first determine if the hybrid is tolerant prior to 
spraying large acreages of that hybrid. 
 
WG 63 Herbicide also contains a safener, which greatly reduces or prevents the temporary yellowing or stunting crop response associated 
with the contained this herbicide chemistry. If symptoms appear, corn quickly outgrows the effect and develops normally. 
 
WEED RESISTANCE MANAGEMENT 
For resistance management, WG 63 Herbicide is a Group 2 herbicide. Any weed population may contain or develop plants naturally resistant 
to WG 63 Herbicide and other Group 2 herbicides. The resistant biotypes may dominate the weed population if these herbicides are used 
repeatedly in the same field. Appropriate resistance management strategies should be followed. 
To delay herbicide resistance take one or more of the following steps: 
• Rotate the use of WG 63 Herbicide or other Group 2 herbicides within a growing season sequence or among growing seasons with 
different herbicide groups that control the same weeds in a field. 
• Use tank mixtures with herbicides from a different group if such use is permitted; where information on resistance in target weed 
species is available, use the less resistance-prone partner at a rate that will control the target weed(s) equally as well as the more 
resistance-prone partner. Consult your local extension service or certified crop advisor if you are unsure as to which active 
ingredient is currently less prone to resistance.

5 
 
• Adopt an integrated weed-management program for herbicide use that includes scouting and uses historical information related to 
herbicide use and crop rotation, and that considers tillage ( or other mechanical control methods), cultural ( e.g., higher crop seeding 
rates; precision fertilizer application method and timing to favor the crop and not the weeds), biological (weed-competitive crops or 
varieties) and other management practices. 
• Scout after herbicide application to monitor weed populations for early signs of resistance development. Indicators of possib le 
herbicide resistance include: (1) failure to control a weed species normally controlled by the herbicide at the dose applied, especially 
if control is achieved on adjacent weeds; (2) a spreading patch of non-controlled plants of a particular weed species; (3) surviving 
plants mixed with controlled individuals of the same species. If resistance is suspected, prevent weed seed production in the 
affected area by an alternative herbicide from a different group or by a mechanical method such as hoeing or tillage. Prevent 
movement of resistant weed seeds to other fields by cleaning harvesting and tillage equipment when moving between fields, and 
planting clean seed. 
• If a weed pest population continues to progress after treatment with this product, discontinue use of this product, and switc h to 
another management strategy or herbicide with a different mode of action, if available. 
• Contact your local extension specialist or certified crop adv isors for additional pesticide resistance-management and/or integrated 
weed-management recommendations for specific crops and weed biotypes. 
• For further information or to report suspected resistance contact Bayer CropScience at 1-866-99BAYER (1-866-992-2937). You ca n 
also contact your pesticide distributor or university extension specialist to report resistance. 
MANDATORY SPRAY DRIFT 
 
Aerial Applications: 
• Do not release spray at a height greater than 10 ft above the ground or vegetative canopy; unless a greater application height 
is necessary for pilot safety. 
• Applicators are required to use a medium or coarser droplet si ze in accordance with the most current version of the American 
Society of Agricultural & Biological Engineers Standard 641 (ASABE S641) for all applications. 
• If the wind speed is 10 miles per hour or less, applicators must use ½ swath displacement upwind at the downwind edge of 
the field. When the wind speed is between 11-15 miles per hour, applicators must use ¾ swath displacement upwind at the 
downwind edge of the field. 
• Do not apply when wind speeds exceed 15 mph at the application site. If the wind speed is greater than 10 mph, the boom 
length must be 65% or less of the wingspan for fixed wing aircraft and 75% or less of the rotor diameter for helicopters. 
Otherwise, the boom length must be 75% or less of the wingspan for fixed- wing aircraft and 90% or less of the rotor diameter 
for helicopters. 
• Do not apply during temperature inversions. 
 
Ground Boom Applications: 
• User must only apply with the release height recommended by the manufacturer, but no more than 4 feet above the ground o r
crop canopy. 
• Applicators are required to use a medium or coarser droplet size in accordance with the most current version of the America n
Society of Agricultural & Biological Engineers Standard 572 (ASAE S572). 
x Do not apply when wind speeds exceed 15 miles per hour at the application site. 
x Do not apply during temperature inversions. 
 
SPRAY DRIFT ADVISORIES 
7+($33/,&$725,65(63216,%/()25$92,',1*2))-SITE SPRAY DRIFT. BE AWARE OF NEARBY NON-TARGET SITES 
$1'(19,5210(17$/&21',7,216 
 
IMPORTANCE OF DROPLET SIZE 
An effective way to reduce spray drift is to apply large droplets. Use the largest droplets that provide target pest control. While applying 
larger droplets will reduce spray drift, the potential for drift will be greater if applications are made improperly or under unfavorable 
environmental conditions. 
 
Controlling Droplet Size – Ground Boom 
x 9ROXPH- 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. 
x Pressure - Use the lowest spray pressure recommended for the nozzle to produce the target spray volume and droplet size. 
x Spray Nozzle - Use a spray nozzle that is designed for the intended application. Consider using nozzles designed to reduce 
drift. 
BOOM HEIGHT – Ground Boom 
For ground equipment, the boom should remain level with the crop and have minimal bounce. 
 
Controlling Droplet Size – Aircraft 
Adjust Nozzles - Follow nozzle manufacturers’ recommendations for setting up nozzles. Generally, to reduce fine droplets, nozzles 
should be oriented parallel with the airflow in flight.

6 
 
 
RELEASE HEIGHT - Aircraft 
Higher release heights increase the potential for spray drift. 
 
SHIELDED SPRAYERS 
6KLHOGLQJWKHERRPRULQGLYLGXDOQR]]OHVFDQUHGXFHVSUD\GULIW&RQVLGHUXVLQJVKLHOGHGVSUD\HUV9HULI\WKDWWKHVKLHOGVDUe not 
interfering with the uniform deposition of the spray on the target area. 
 
TEMPERATURE AND HUMIDITY 
When making applications in hot and dry conditions, use larger droplets to reduce effects of evaporation. 
 
TEMPERATURE INVERSIONS 
Drift potential is high during a temperature inversion. Temperature inversions are characterized by increasing temperature with altitude 
and are common on nights with limited cloud cover and light to no wind. The presence of an inversion can be indicated by ground fog or 
by the movement of smoke from a ground source or an aircraft smoke generator. Smoke that layers and moves laterally in a 
concentrated cloud (under low wind conditions) indicates an inversion, while smoke that moves upward and rapidly dissipates indicates 
good vertical air mixing. Avoid applications during temperature inversions. 
 
WIND 
'ULIWSRWHQWLDOJHQHUDOO\LQFUHDVHVZLWKZLQGVSHHG$92,'$33/,&$7,216'85,1**867<:,1'&21',7,216 
Applicators need to be familiar with local wind patterns and terrain that could affect spray drift. 
RESTRICTIONS AND PRECAUTIONS FOR USE 
x Plant corn at least 1½ inches deep. Corn seed must be completely covered with soil and furrow firmed. 
x Do not apply this product through any type of irrigation system. 
x Do not apply more than 0.04 pounds per acre of the THIENCARBAZONE-METHYL active ingredient from all sources per 365 
day period, or exceed maximum labeled rates for any given soil type in a single application. 
x DO NOT apply WG 63 Herbicide postemergence to corn with liquid fertilizers as the primary spray carrier. Only apply 
postemergence to corn with water as the primary spray carrier plus recommended adjuvants. See Spray Additives section. 
x Apply WG 63 Herbicide spray mixtures within 24 hours of mixing to avoid product degradation. 
x Avoid spray drift from treated areas. Refer to the Spray Drift Management section of this label for additional information. 
x DO NOT apply more than two postemergence applications of WG 63 Herbicide to corn in one growing season. 
x Do not apply more than one application of WG 63 Herbicide during the post-harvest application period (from harvest of precedin g 
crop to 30 days prior to planting of next crop). 
x Allow at least 14 days between applications of WG 63 Herbicide. 
x When weeds are stressed due to drought, heat, lack of fertilit y, flooding, or prolonged cool temperatures control can be reduced 
or delayed because weeds are not actively growing. To obtain optimum weed control with an application of WG 63 Herbicide 
follow label directions and use when weeds are actively growing. 
x Weed control may be reduced if the application is made when weeds are dust covered or in the presence of heavy dew, fog, 
and mist/rain or when weeds are under stress due to drought. 
x Tank contamination can cause severe damage to other crops. Careful management of tank clean out is required. See Tank 
Cleanout section for complete instructions. 
x DO NOT graze livestock, or harvest corn forage or sweet corn ears within 45 days of application of WG 63 Herbicide. 
INSECTICIDE INTERACTION INFORMATION 
Soil applied insecticide interaction information 
When WG 63 Herbicide and certain organophosphate (OP) or carbamate insecticides are applied to corn, injury can result. DO NOT 
USE WG 63 Herbicide in the same season as Lorsban®, Counter® 15G, Counter® 20G, Dyfonate®, or Thimet®. 
For all corn hybrids, the following table describes the uses of soil-applied insecticides prior to an application of WG 63 Herbicide: 
Soil Applied Insecticide Use Pattern Use of WG 63 Herbicide in the 
Same Season 
Aztec®, Regent®Tefluthrin (e.g. Force®) All No use precautions 
Chlorpyrifos (e.g.Lorsban® 15G), Terbufos (e.g. Counter® 
15G, Counter® 20CR), Phorate (e.g Thimet®), Fonophos 
(e.g Dyfonate) 
All Do Not Use 
 
Foliar Insecticide Interaction Information 
Foliar applications of an organophosphate or carbamate insecticide should not be made within 7 days of an application of WG 63 
Herbicide or crop injury may result.

7 
 
ROTATIONAL CROP RESTRICTIONS 
Rotational crops vary in their crop response to low concentrations of WG 63 Herbicide remaining in the soil. The amount of WG 6 3 
Herbicide that may be present in the soil depends on soil moisture, soil temp, application rate, elapsed time since application and other 
environmental factors. When WG 63 Herbicide is used in combination with other products, always follow the most restrictive rota tional 
crop requirements. 
The active ingredient, thiencarbazone-methyl is used in multiple products. When determining rotational crop intervals the total 
application rate of thiencarbazone-methyl from all sources should be included on an equivalent basis to WG 63 Herbicide rates when 
determining crop rotation intervals from Tables 1 and 2. 
The following rotational crops may be planted after applying WG 63 Herbicide in corn: 
Table 1. Minimum recropping intervals for various crops following WG 63 Herbicide application at rates totaling greater than 
1.0 ounce of product per acre. 
Rotational 
Interval (elapsed 
time) Crop Minimum precipitation requirement 1 
0 Months 2 Yellow field corn None 
3 Months2 Wheat None 
9 Months2 Barley, Cotton, Soybean, Sweet corn 3, Popcorn3, White field 
corn3 
15 inches of cumulative precipitation from 
application to planting of rotational crop 
17 Months3 Alfalfa, Green and Dry Beans, Sorghum, Oats, Sunflower, 
Canola, Potato, Sugar beet and All other crops 
30 inches of cumulative precipitation from 
application to planting of rotational crop 
1The amount of cumulative precipitation required before planting a rotational crop is in addition to the required rotational interval given in months. Furrow or 
flood irrigation not to be included in total. No more than 7 inches of overhead irrigation included in total. 
2Crop varieties planted back at intervals of one year or less should not have known acute sensitivity to ALS-inhibiting and/or SU herbicides. 
3When soil pH is 7.5 or above crop plant back should be delayed to the next interval, and to 24 months for crops listed in the 17 month interval above. 
 
Table 2. Minimum recropping intervals for various crops following WG 63 Herbicide application at rates totaling 1.0 ounce of 
product per acre or less. 
Rotational 
Interval (elapsed 
time) Crop Minimum precipitation requirement1 
0 Months2 Yellow Field Corn None 
2 Months2, 3 Soybean None 
3 Months2 Wheat None 
9 Months2 Barley, Cotton, Sorghum 4, Sweet corn4, Popcorn4, White field 
corn4 
15 inches of cumulative precipitation from 
application to planting of rotational crop 
17 Months4 Alfalfa 4, Green and Dry Beans4, Oats, Sunflower4, Canola4, 
Potato4, Sugar beet4 and All other crops4 
30 inches of cumulative precipitation from 
application to planting of rotational crop 
1The amount of cumulative precipitation required before planting a rotational crop is in addition to the required rotational interval given in months. Furrow or 
flood irrigation not to be included in total. No more than 7 inches of overhead irrigation included in total. 
2Crop varieties planted back at intervals of one year or less should not have known acute sensitivity to ALS-inhibiting and/or SU herbicides. 
3When soil pH is 7.5 or above soybean plant back should be delayed to the 9 month interval. 
4When soil pH is 7.5 or above crop plant back should be delayed to the next interval, and to 24 months for crops listed in the 17 month interval above. 
 
MIXING INSTRUCTIONS 
Application with water carrier or liquid fertilizer (prior to crop emergence ONLY) carrier: Fill the spray tank 1/4 to 1/2 of the required 
volume of water or liquid fertilizer prior to the addition of WG 63 Herbicide, and begin agitation. Slowly add the proper amoun t of WG 63 
Herbicide, and begin bringing the water or liquid fertilizer to the desired level. Maintain sufficient agitation to ensure a un iform spray 
mixture during application. If WG 63 Herbicide is applied in a tank mixture with other pesticides, add WG 63 Herbicide to the s pray tank 
first and ensure it is thoroughly dispersed before adding other pesticides. If ammonium sulfate (AMS) is the nitrogen fertilizer source, it is 
preferred that the AMS go into the tank after the WG 63 Herbicide and before other pesticide tank mix partners. If UAN is the n itrogen 
fertilizer source, it should be added to the tank after other pesticide tank mix partners. Add surfactants to the tank last. Continue to fill the 
tank with carrier to the desired volume while agitating. CONTINUE AGITATION DURING APPL ICATION TO ENSURE A UNIFORM 
SPRAY MIXTURE. 
Re-suspending WG Products in Spray Solution: Like other water dispersible granules (WG’s), WG 63 Herbicide will settle if left 
standing without agitation. If the spray solution is allowed to settle for one hour or more, reagitate the spray solution for a minimum of 
10 minutes before application.

8 
 
TANK CLEANUP PROCEDURE 
Cleaning Equipment After WG 63 Herbicide Application 
Special attention must be given to cleaning equipment before spraying a crop other than corn. Mix only as much cleaning solution as 
needed. 
1. Flush tank, hoses, boom and nozzles with clean water. 
2. Use a pressure washer with a high quality commercial spray tank cleaner in water to clean the inside of the spray tank. 
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. 
3. Flush hoses, spray lines, and nozzles for at least 1 minute with the cleaning solution. 
4. Dispose of rinsate from steps 1-3 in an appropriate manner. 
5. Repeat steps 2-4. 
6. Remove nozzles, screens and strainers and clean separately in the cleaning solution after completing the above 
procedures. 
7. Rinse the complete spraying system with clean water. 
8. Cleanup should be conducted on an approved rinse pad or the field site where an approved crop is to be grown. 
TANK MIXTURES 
WG 63 Herbicide can be applied in tank mixture with many other pesticides registered for use on approved crops. Refer to “Tank Mix 
Combination” section for rates and other restrictions. 
COMPATIBILITY 
If WG 63 Herbicide is to be tank mixed with liquid fertilizers or other pesticides, compatibility should be tested prior to mix ing. To test for 
compatibility, use a small container and mix a small amount (0.5 to 1 qt) of spray, combining all ingredients in the same ratio as the 
anticipated use. If any indications of physical incompatibility develop, do not use this mixture for spraying. Indications of i ncompatibility 
usually will appear within 5-15 minutes after mixing. Read and follow all parts of the label of each tank-mix product. 
APPLICATION PROCEDURES 
APPLICATION TIMING 
WG 63 Herbicide may be: 
x Used in either conventional, conservation tillage, or no-till crop management systems. 
x Applied postemergence to corn. 
x Used during the non-cropped period from harvest of preceding crop to 30 days prior to planting of next crop. 
Postemergence: 
 Broadcast: WG 63 Herbicide alone and/or in certain tank mixtures may be applied broadcast to corn from spiking through the 6th 
leaf collar growth stage (9the first leaf has a rounded tip) at rates as defined under the Specific Use Directions section of this label. Do 
QRWPDNHEURDGFDVWDSSOLFDWLRQVWRFRUQEH\RQGWKH9JURZWKVWDJH 
 
 Directed: Applications of WG 63 Herbicide PD\EHDSSOLHGZKHQFRUQLVJUHDWHUWKDQ9DQGOHVVWKDQ9VWDJHRIJURZWKDVD
directed postemergence spray. Drop Nozzles must be used for applications of WG 63 +HUELFLGHDIWHUWKH9VWDJHRIJURZWK. Do not 
DSSO\WRFRUQWKDWLVPRUHPDWXUHWKDQ9LHPRUHWKDQYLVLEOHOHDIFROODUVVWDJHRIJURZWK$SSOLFDWLRQVRIWG 63 Herbicide on 
FRUQWKDWLV9WR9LQFUHDVHVWKHSRWHQWLDOIRUFURSUHVSRQVH7KHULVNPD\EHJUHDWO\UHGXFHGEXWQRWHOLPLQDWHGE\ using drop 
nozzles properly placed between corn rows to optimize coverage on the weeds and minimize spray contact in the whorl and the leaf 
axles of the corn stalks. Use drop nozzles and appropriate spacing to direct spray below the corn whorl and upper leaves. The top of 
the target weed canopy must be sufficiently below the whorl and upper leaves of the crop to permit this application and provide 
adequate spray coverage. The height differential required between the crop and weed canopy will depend on the specific equipment 
used. 
DO NOT graze livestock, or harvest corn forage or sweet corn ears within 45 days of application of WG 63 Herbicide. 
 
Post-Harvest: WG 63 Herbicide may be used alone or in combination with other registered herbicides as a fall to early spring-applied 
ground broadcast application for burn down and residual control of certain winter annual broadleaf and other weeds listed on this label. 
 
Apply WG 63 Herbicide to unfrozen ground from harvest of preceding crop to 30 days prior to planting of next crop. Applications of WG 
63 Herbicide should start at the beginning of emergence of any of the winter annual broadleaf weeds listed on this label. This 
application will reduce weed cover before spring planting. A fall application of WG 63 Herbicide is not intended to provide weed control 
throughout the succeeding cropping period, but is part of a weed management program to remove weed covers that rob residual 
moisture and nutrients from the soil, slow soil warming, and hamper field preparation for and planting of succeeding crops. Weed 
control in succeeding crops will require additional applications of residual and/or postemergence herbicides for season-long control. 
 
Apply 1.0 to 2.5 oz of WG 63 Herbicide plus adjuvants (see spray additives section on this label) for burndown of labeled weeds 6” or 
less in height. Weed growth ceases within hours after WG 63 Herbicide is applied. Weed death generally occurs within 7 to 14 days 
after application but is progressively slower as weeds approach the 6-inch height. For post-harvest applications, methylated seed oil

9 
 
(MSO) can be substituted for crop oil concentrate (COC) as an adjuvant. For optimum control, weeds must be in vegetative stages of 
growth. The length of residual control will increase with the application rate of WG 63 Herbicide. 
 
If emerged weeds are present and are greater than 6 inches in height or diameter, use 2,4-D or an appropriate alternative 
postemergence herbicide in the tank mixture. 
 
Control of established common dandelion requires a tank mixture containing at least 1 pint/acre (4-pound/gallon) of 2,4-D, and/or a 
tank-mixture with AUTUMN™ Herbicide. 
 
Field corn, soybean and other crops can only be planted at the intervals specified in the “Rotational Crop Restrictions” section of this 
label after a post-harvest application of WG 63 Herbicide. 
 
 
Read and follow the entire label for the most restrictive directions of the respective tank mix partner. 
 
SPRAY ADDITIVES 
WG 63 Herbicide is a water dispersible granule that requires the use of an external adjuvant and a nitrogen fertilizer source to achieve 
optimum weed control. 
 
Crop Oil Concentrate 
Use Crop Oil concentrate (COC) at 1 gallon per 100 gallons of water (1% v/v), with a minimum of 1.25 pt/A. COC should contain at 
least 80% crop oil and 10% emulsifier or greater. The use of adjuvants such as non-ionic surfactants or refined vegetable oils will result 
in unacceptable or erratic weed control.
 
 
Ammonium Nitrogen Fertilizer 
Use 1.5 qt/A of a high-quality urea ammonium nitrate (UAN), or 1.5 lb/A minimum (or 8.5 lb per 100 gallons) of a spray-grade 
ammonium sulfate (AMS). Use UAN under conditions of low relative humidity for greater weed control. 
 
For tank mixtures with Ignite® 280 SL Herbicide 
WG 63 Herbicide can be tank mixed with Ignite® 280 SL Herbicide. Ignite® 280 SL Herbicide can only be used on corn seed designated 
as LibertyLink®. Do not use MSO/ESO or COC adjuvants in this mixture, only add AMS at 8.5 lbs/100 gallons (1.5 lb/A minimum). 
Follow all other directions for adjuvants as listed on the Ignite® 280 SL label. Follow the most restrictive directions for use and 
precautions as defined on both herbicide labels. 
 
For tank mixtures with Glyphosate (including Roundup® and Touchdown® branded products) 
WG 63 Herbicide can be tank mixed with glyphosate for use on glyphosate-tolerant corn. WG 63 Herbicide will enhance broadleaf 
control, combat glyphosate-resistant weeds and reduce glyphosate induced weed shifts. Do not use MSO/ESO or COC adjuvants in 
this mixture. Add AMS at 8.5 lbs/100 gallons (1.5 lb/A minimum) and any additional surfactant as recommended on the Glyphosate 
label. Follow the most restrictive directions for use and precautions as defined on both herbicide labels. 
 
GROUND APPLICATION 
DO NOT 29(5/$3 SPRAY PATTERNS BEYOND EQUIPMENT MANUFACTURERS’ $6 (;&(66,9( 5$7(6 0$< 5(68/7 ,1
$'9(56(&5235(63216(. 
 
Apply WG 63 Herbicide alone or in tank mixtures by ground equipment in a minimum of 10 gallons of spray mixture per acre. Unifo rm, 
thorough spray coverage is important to achieve consistent weed co ntrol. Use sprayers that provide accurate and uniform applica tion. 
For emerged weed control in dense weed populations or under adverse growing conditions, 15 to 20 gallons of water per acre is 
recommended. Good coverage is essential to achieve optimum control of emerged weeds. 
 
To minimize spray drift to non-target areas, apply this product using nozzles which deliver a medium to coarser spray droplet as defined 
by ASAE standard S-572 and as shown in nozzle manufacturer’s catalogues. Keep the spray boom at the lowest possible spray height 
above the target surface. Refer to nozzle manufacturer’s recommendations for proper nozzle, pressure setting and sprayer speed for 
optimum product performance and minimal spray drift. Apply with nozzle height no more than 4 feet above the ground or crop canopy. 
 
Over applications, uneven application, sprayers not properly cali brated, boom overlapping or improper incorporation may decreas e the 
level of weed control and/or increase the level of adverse crop response. 
Maintain constant ground speed while applying product to ensure proper distribution. 
MAINTAIN ADEQUATE AGITATION AT ALL TIMES, INCLUDING MOMENTARY STOPS.

10 
 
AERIAL APPLICATION 
Calibrate the spray equipment prior to use. Apply WG 63 Herbicide in a minimum of 5 gallons of water per broadcast acre. The use of 
nozzles and spray pressure that deliver MEDIUM spray droplets as indicated in the nozzle manufacturer’s catalogs and in accordance 
with ASAE Standard S-572 are highly recommended for optimum spray coverage and canopy penetration. DO NOT use raindrop 
nozzles. Aerial applications of this product should be made at a maximum height of 10 feet above the top of the largest plants unless a 
greater height is required for aircraft safety. Making applications at the lowest height that is safe reduces exposure of droplets to 
evaporation and wind. Aerial applications of this product should also be made with low drift nozzles at a maximum pressure of 40 psi. 
Uniform, thorough spray coverage is important to achieve consistent weed control. 
 
See the Spray Drift Management section of this label for additional information on proper application of WG 63 Herbicide. 
 
SPECIFIC DIRECTIONS FOR USE IN CORN 
Postemergence Rates 
x Apply WG 63 Herbicide to emerged weeds at 1.0 oz of product per acre per application. Always add appropriate adjuvants to the 
spray tank (see Spray Additives Section of this label). 
x Applications of WG 63 Herbicide at rates less than 1.0 oz of product per acre postemergence may result in incomplete weed 
control and reduction in residual activity. 
x Broadcast applications of WG 63 Herbicide may be made to corn from spiking through the 6- OHDIFROODUVWDJHRIJURZWK9, the first 
leaf has a rounded tip)'RQRWDSSO\EURDGFDVWWRFRUQWKDWLVPRUHPDWXUHWKDQWKH9VWDJHRIJURZWK 
x Directed postemergence applications of WG 63 Herbicide can be made to corn from the 6-leaf collar stage through the 12-leaf 
FROODUVWDJH9RIJURZWK'RQRWDSSO\WRFRUQWKDWLVPRUHPDWXUHWKDQWKH9VWDJHRIJURZWK 
x Follow all precautions and warnings for using ALS-inhibiting or Sulfonyl urea (SU) herbicides on a particular hybrid/inbred. 
x Best results with WG 63 Herbicide used postemergence are obtained when it is applied to young actively growing weeds. WG 63 
Herbicide will affect weeds that are larger than the recommended height, however such applications may result in incomplete weed 
control. 
x Do not exceed 1.0 oz of product per acre of WG 63 Herbicide per postemergence application beyond a 2-leaf collar growth stage 
of corn 9. 
x DO NOT apply more than two postemergence applications of WG 63 Herbicide to the corn crop in one growing season. 
x Allow at least 14 days between applications of WG 63 Herbicide. 
x DO NOT graze livestock, or harvest corn forage or sweet corn ears within 45 days of application of WG 63 Herbicide. 
 
TANK MIX COMBINATIONS 
Tank mix combinations may be used and applied at the same timings as WG 63 Herbicide unless otherwise specified in the tank-mix 
partner label. Multiple tank mixtures are allowed unless otherwise specified by the respective product labels. Check all tank-m ix product 
labels for proper rates and compatibilities for multiple tank-mixes. 
WG 63 MAY BE TANK-MIXED WITH THESE HERBICIDES FOR CONTROL OF CERTAIN BROADLEAF AND GRASS WEEDS IN 
CORN. 
Tank-mixes with WG 63 Herbicide are not limited to the tank-mix partners mentioned in below lists. Refer and follow the label of each 
tank-mix partner used for precautionary statements, directions for use, geographic and other restrictions.
 
TANK-MIX PARTNERS 
2,4-D 
Atrazine 
Autumn™ Herbicide 
Define™ SC 
Balance® FLEXX Herbicide 
Glyphosate (including Roundup® and Touchdown® branded products) 
Paraquat (including Gramoxone® branded products) 
LAUDIS™ Herbicide 
Ignite® 280 SL Herbicide

11 
 
BROADLEAF AND GRASS WEEDS CONTROLLED BY WG 63 HERBICIDE 
ANNUAL GRASS WEEDS 
Barnyardgrass 
Crabgrass, large 
Foxtail, giant 
Foxtail, green 
Foxtail, yellow 
Millet, wild proso 
Oat, wild 
Panicum, fall 
Sandbur, field1 
Shattercane 
Signalgrass, broadleaf 
ANNUAL BROADLEAF WEEDS 
Amaranth, Palmer1, 2 
Lambsquarters, common 
Morningglory, ivyleaf 
Morningglory, pitted 
1 
 
Pigweed, redroot 2 
Purselane, common 
Ragweed, common2 
Sesbania, hemp 
Sida, prickly 1 
Sunflower, wild 
9HOYHWOHDI 
 
1These weeds will be suppressed / or be reduced in competition. Reduced competition weeds will be stunted in growth 
and / or be of reduced populations as compared to non-treated areas. Commercially acceptable control may require the 
application of an appropriate tank mixture or sequential herbicide treatment. 
2WG 63 Herbicide may not provide acceptable control of ALS-resistant biotypes. 
 
 
STORAGE AND DISPOSAL 
Do not contaminate water, food or feed by storage or disposal. 
PESTICIDE STORAGE 
Store unused product in original container only, out of reach of children and animals. NEVER TRANSFER THIS PRODUCT TO 
ANOTHER CONTAINER FOR STORAGE. 
PESTICIDE DISPOSAL 
Dispose of wastes resulting from the use of this product on site or at an approved waste disposal facility. 
CONTAINER DISPOSAL 
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 1/4 full with water and recap. Shake for 10 seconds. Pour rinsate into 
application equipment or a mix tank or store rinsate for later use or disposal. Drain for 10 seconds after the flow begins to drip. Repeat 
this procedure two more times. Then puncture and dispose of in a sanitary landfill, or by incineration; or, if allowed by State and local 
authorities, by burning. If burned, stay out of smoke

12 
 
IMPORTANT NOTICE – PLEASE READ: LIMITATIONS OF WARRANTIES, 
LIABILITY, AND REMEDIES 
This Notice of Limitation of Warranties, Liability, and Remedies (“Notice”) and instructions to the purchaser and/or user 
(“Purchaser”) contained in this produc t (“Product”) label, including withou t limitation under Directions for Use 
(collectively, “Directions for Use”), are included in the terms of sale of this Product. Please read the Directions for Use 
and this Notice entirely before using this Product. The Purchaser accepts, acknowledges, and agrees to be bound by the 
Directions for Use and the terms of this Notice upon use of the Product. If Purchaser does not accept such terms, 
Purchaser must return the unopened Product container immediat ely. Any use and/or transfer of this Product must be 
authorized by Bayer CropScience LLC and accompanied by this Notice. 
INHERENT RISKS OF USE : The Directions for Use of this Product are believed to be adequate, and Purchaser must carefully 
follow the Directions for Use. However, it is impossible to el iminate all risks associated with the use of this Product. Crop i njury, 
ineffectiveness, or other unintended consequences may result because of factors and conditions beyond the control of Bayer 
CropScience LLC and its authorized Product di stributors ("Seller"), including, among other things, adverse weather conditions, 
presence of other materials, and the manner of use or application. To the extent consistent with applicable law, Purchaser assumes 
all such risks. 
To the extent the Product is a seed treatment product, Purchaser acknowledges that treatment of damaged seed (including, 
without limitation, highly mechanically dam aged seed) or seed of low vigor or poor quality may result in reduced germination or 
seed and seedling vigor. Prior to use of this Product, Purchaser should inspect seed for damage and treat and conduct germination 
tests on a small portion of seed before treating a full seed lot with any seed treatment product. 
EXPRESS WARRANTY: Seller’s sole and exclusive warranty (“Exclusive Warranty”) on the Product is the statements made on 
this Product label. 
DISCLAIMER OF WARRANTIES727+((;7(17&216,67(17:,7+$33/,&$%/(/$:(;&(37)257+((;&/86,9(
:$55$17<6(7)257+$%29(6(//(5',6&/$,06$1<$1'$//:$55$17,(6:,7+5(63(&7727+,6352'8&7
WHETHER EXPRESS OR IMPLIED (EITHER IN FACT OR BY OPERATION OF LAW), INCLUDING BUT NOT LIMITED TO: (A) 
THE IMPLIED WARRANTY OF MERCHANTABILITY; (B) THE IMPLIED WARRANTY OF FITNESS FOR A PARTICULAR 
PURPOSE; (C) THE IMPLIED WARRANTY AGAINST NONINFRINGEMENT (FOR THIS PRODUCT ALONE OR IN 
COMBINATION WITH ANY OTHER PRODUCTS); AND (D) ANY WARRANTIES OF CROP PERFORMANCE OR, IF 
$33/,&$%/(&$55<29(56(('3(5)250$1&( 
LIMITATION OF LIABILITY AND REMEDIES: TO THE EXTENT CONSISTENT WITH APPLICABLE LAW: 
6(//(5
6727$//,$%,/,7<$1'385&+$6(5
6(;&/86,9(5(0('<)25$1<$1'$///266(6,1-85,(6$1'25
DAMAGES ARISING FROM THE PURCHASE, USE, OR HANDLING OF THIS PRODUCT, OR OTHERWISE ARISING OUT OF 
$ %5($&+ %< 6(//(5 2) 7+( (;&/86,9( :$55$17< +2:(9(5 68&+ LIABILITY MAY ARISE, WHETHER SUCH 
&/$,06$5(%$6('21&2175$&71(*/,*(1&(675,&7/,$%,/,7<725725$1<27+(57+(25<2)5(&29(5<
OR REMEDY, SHALL BE, AT THE ELECTION OF SELLER OR SELLER'S DELEGATE, AN AMOUNT NOT TO EXCEED THE 
PURCHASE PRICE PAID BY PUR &+$6(5)257+,6352'8&7$66(7)257+,17+($33/,&$%/(,192,&(257+(
REPLACEMENT OF THE PRODUCT. 
2. SELLER SHALL NOT BE LIABLE TO PURCHASER AND/OR ANY THIRD PARTY FOR ANY INCIDENTAL, 
&216(48(17,$/ 5(/,$1&( 5(027( (;(03/$5< 381,7,9( 63(&,$/25 ,1',5(&7 '$0$*(6 ,1&855(' 25
EXPENDED IN THE PURCHASE, USE OR HANDLING OF THIS PRODUCT. 
3. PURCHASER AGREES THAT IF THE PURCHASE PRICE PAID BY PURCHASER FOR THIS PRODUCT OR REPLACEMENT 
352'8&7 ,6 3529,'(' 7+( 5(0('<6(7 )257+ ,1 7+,6 127,&( :,// 127 +$9( )$,/(' 2) ,76 (66(17,$/
PURPOSE. 
PROMPT NOTICE OF CLAIMS REQUIRED: To the extent consistent with applicable law, as a condition to receiving Purchaser's 
limited remedy set forth above, any and all claims brought against the Seller must be brought within 30 days after the condition or 
event giving rise to the claim is discovered or should have been discovered, or prior to the harvest of any crop to which the Product 
was applied, whichever comes first, so that the claim can be investigated, and the Product or crop inspected. 
MISCELLANEOUS: Purchaser agrees that this Notice is the entire agreem ent between Seller and Purchaser regarding Seller’s 
warranty and liability for this Product. No modi fication of, addition to, or waiver of any of the terms of this Notice shall be binding 
unless set forth in writing and signed by an authorized representative of Bayer CropScience LLC. If any portion of this Notice not 
material to the remaining portions shall be held illegal, void, or ineffective by a governmental authority, the remaining portions shall 
remain in full force and effect. If any portion of this Notice is in conflict with any applicable statute or rule of law, then such portion 
shall be deemed to be modified to conform to such statute or rule of law.

13 
 
 
NET CONTENTS: 20 oz container 
 
 
 
Balance Pro and Roundup are registered trademarks of Bayer Group. 
Gramoxone Max is a registered trademark of Syngenta Group Company. 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
WG 63 Herbicide (Pending) 10/26/2020, 02/25/2021, 02/26/2021, 03/03/2021, 04/01/2021, 02/03/2026, 02/05/2026