crop-chem-docs/corpus/epa_ppls/100-1282.md

# Halex® GT Herbicide

- EPA Reg No: **100-1282**
- Registrant: SYNGENTA CROP PROTECTION, LLC
- Signal word: Caution
- Active ingredients: S-Metolachlor (20.5%); Mesotrione (2.05%); Glyphosate (20.5%)
- Label accepted: 2025-01-15
- Source PDF: https://www3.epa.gov/pesticides/chem_search/ppls/000100-01282-20250115.pdf

---
January 15, 2025
SENT BY EMAIL
Amanda M. Foderaro
amanda.m.foderaro@syngenta.com
SYNGENTA CROP PROTECTION, LLC
Subject: Labeling Notification per Pesticide Registration Notice (PRN) 98-10 - Addition of a marketing
statement
Product Name: Halex
Admin Number: 100-1282
EPA Receipt Date: 10/21/2024
Action Case Number: 00634342
Dear Amanda M. Foderaro:
The U.S. Environmental Protection Agency is in receipt of your application for notification under Pesticide
Registration Notice 98-10 for the above referenced product. The EPA has conducted a review of this request
for its applicability under PRN 98-10 and finds that the action requested falls within the scope of PRN 98-10.
The labeling submitted with this application has been stamped "Notification" and will be placed in our records.
Should you wish to add/retain a reference to your company’s website on your label, then please be aware that
the website becomes labeling under the Federal Insecticide, Fungicide, and Rodenticide Act and is subject to
review by the EPA. If the website is false or misleading, the product will be considered to be misbranded and
sale or distribution of the product is unlawful under FIFRA section 12(a)(1)(E). 40 CFR § 156.10(a)(5) lists
examples of statements the EPA may consider false or misleading. In addition, regardless of whether a
website is referenced on your product’s label, claims made on the website may not substantially differ from
those claims approved through the registration process. Therefore, should the EPA find or if it is brought to
our attention that a website contains statements or claims substantially differing from statements or claims
made in connection with obtaining a FIFRA section 3 registration, the website will be referred to the EPA’s
Office of Enforcement and Compliance Assurance.
 If you have questions, please contact Jenna Wiegand via email at wiegand.jenna@epa.gov.
Sincerely,
Emily Schmid, Product Manager 25
HB, RD
Office of Pesticide Programs

Halex GT Herbicide 
Page 1 
 
[Master label] 
 
Sale, use, and distribution of this product in Nassau and Suffolk Counties in the 
State of New York is prohibited. 
 
S-METOLACHLOR GROUP 15 HERBICIDE 
GLYPHOSATE GROUP 9 HERBICIDE 
MESOTRIONE GROUP 27 HERBICIDE 
 
Halex® GT Herbicide 
 
A Postemergence Herbicide for Weed Control in Glyphosate Tolerant (GT) Field Corn 
and Preemergence Weed Control in Grain Sorghum 
 
Active Ingredients: 
S-metolachlor* ....................................................................................................... 20.50% 
Glyphosate, N-(phosphonomethyl) glycine ............................................................ 20.50% 
Mesotrione** ............................................................................................................ 2.05% 
Other Ingredients: 56.95% 
Total: 100.00% 
 
Active ingredients per U.S. gallon: S-metolachlor 2.09 pounds, glyphosate acid 2.09 
pounds and mesotrione 0.209 pounds. 
 
 *CAS No. 87392-12-9 
**CAS No. 104206-82-8 
 
KEEP OUT OF REACH OF CHILDREN. 
 
CAUTION/PRECAUCIÓN 
 
Si usted no entiende la etiqueta, busque a alguien para que se la explique a usted en 
detalle. (If you do not understand the label, find someone to explain it to you in detail.) 
 
See additional precautionary statements and directions for use inside booklet. 
 
DoseLock™ Formulation Technology 
 
EPA Reg. No. 100-1282 
 
EPA Est. No. 
 
 
___________ 
Net Contents 
 
100-1282
1/15/2025

Halex GT Herbicide 
Page 2 
 
FIRST AID 
If inhaled • Move person to fresh air. 
• If person is not breathing, call 911 or an ambulance, and then give 
artificial respiration, preferably mouth-to-mouth, if possible. 
• Call a poison control center or doctor for further treatment advice. 
If in eyes • Hold eye open and rinse slowly and gently with water for 15 -20 
minutes. 
• Remove contact lenses, if present, after the first 5 minutes, then 
continue rinsing eye. 
• Call a poison control center or doctor for treatment advice. 
If swallowed • Call a poison control center or doctor immediately for treatment 
advice. 
• Have person sip a glass of water if able to swallow. 
• Do not induce vomiting unless told to do so by the poison control 
center or doctor. 
• Do not give anything by mouth to an unconscious person. 
If on skin or 
clothing 
• Take off contaminated clothing. 
• Rinse skin immediately with plenty of water for 15-20 minutes. 
• Call a poison control center or doctor for treatment advice. 
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 
 
Hazards to Humans and Domestic Animals 
 
CAUTION/PRECAUCIÓN 
 
Harmful if inhaled. Causes moderate eye irritation. Avoid breathing spray mist. Avoid 
contact with eyes or clothing. This product may cause skin sensitization reactions in 
some people.

Halex GT Herbicide 
Page 3 
 
Personal Protective Equipment (PPE) 
 
Applicators and other handlers must wear: 
• Coveralls over short-sleeved shirt and short pants 
• Chemical-resistant gloves made of barrier laminate, butyl rubber ≥ 14 mils, nitrile 
rubber ≥ 14 mils, neoprene rubber ≥ 14 mils, natural rubber ≥ 14 mils, polyethylene, 
polyvinyl chloride (PVC) ≥ 14 mils, or Viton® ≥ 14 mils. 
• Chemical-resistant footwear plus socks 
• Chemical-resistant headgear for overhead exposure 
• Chemical-resistant apron when cleaning equipment, mixing, or loading 
 
Follow manufacturer's instructions for cleaning and/or maintaining PPE. If there are no 
such instructions for washables, clean with detergent and hot water. Keep and wash 
PPE separately from other laundry. 
 
Engineering Control Statements 
 
Mixers and loaders supporting aerial applications are required to use closed systems. 
The closed system must be used in a manner that meets the requirements listed in the 
Worker Protection Standard (WPS) for agricultural pesticides (40 CFR 170.240(d)(4-6)). 
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. 
 
User Safety Recommendations 
Users should: 
• Wash hands thoroughly with soap and water after handling and before eating, 
drinking, chewing gum, using tobacco, or using the toilet. 
• Remove clothing/PPE immediately if pesticide gets inside. Then wash thoroughly 
and put on clean clothing. 
• Remove PPE immediately after handling this product. Wash the outside of gloves 
before removing. As soon as possible, wash thoroughly and change into clean 
clothing. 
 
ENVIRONMENTAL HAZARDS 
 
For terrestrial uses, do not apply directly to water, or to areas where surface water is 
present, or to intertidal areas below the mean high water mark. Do not contaminate 
water when disposing of equipment wash water or rinsate. 
 
GROUNDWATER ADVISORY 
 
Mesotrione and S-metolachlor are known to leach through soil into groundwater under 
certain conditions as a result of label use. These chemical may leach into groundwater 
if used in areas where soils are permeable, particularly where the water table is shallow.

Halex GT Herbicide 
Page 4 
 
 
SURFACE WATER ADVISORY 
 
This product may impact surface water through ground spray drift and due to runoff of 
rainwater. 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 months or more after application. 
 
A level, well maintained vegetative buffer strip between areas to which this product is 
applied and surface water features such as ponds, streams, and springs will reduce the 
potential loading of mesotrione and S-metolachlor from runoff water and sediment. 
Runoff of this product will be reduced by avoiding applications when rainfall or irrigation 
is expected to occur within 48 hours. Sound erosion control practices will reduce this 
product’s contribution to surface water contamination. 
 
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. 
 
Reporting Ecological Incidents 
 
To report ecological incidents, including mortality, injury, or harm to plants and animals, 
call 1-800-888-8372. 
 
Mixing and Loading Instructions 
 
Take care when using this product to prevent back siphoning into wells, spills, or 
improper disposal of excess pesticide, spray mixtures, or rinsates. 
 
Check valves or anti-siphoning devices must be used on mixing equipment. 
 
This product may not be mixed/loaded or used within 50 ft of wells, including 
abandoned wells, drainage wells, and sink holes. Operations that involve mixing, 
loading, rinsing, or washing of this product into or from pesticide handling or application 
equipment or containers within 50 ft of any well are prohibited, unless conducted on an 
impervious pad constructed to withstand the weight of the heaviest load that may be 
positioned on or moved across the pad. Such a pad shall be designed and maintained 
to contain any product spills or equipment leaks, container or equipment rinse or wash 
water, and rain water that may fall on the pad. Surface water shall not be allowed to 
either flow over or from the pad, which means the pad must be self-contained. The pad 
shall be sloped to facilitate material removal. An unroofed pad shall be of sufficient 
capacity to contain at a minimum 110% of the capacity of the largest pesticide container 
or application equipment on the pad. A pad that is covered by a roof of sufficient size to

Halex GT Herbicide 
Page 5 
 
completely exclude precipitation from contact with the pad shall have a minimum 
containment capacity of 100% of the capacity of the largest pesticide container or 
application equipment on the pad. Containment capacities as described above shall be 
maintained at all times. The above-specified minimum containment capacities do not 
apply to vehicles when delivering pesticide shipments to the mixing/loading site. 
 
Physical and Chemical Hazards 
 
Do not use or store near heat or open flame. 
 
Do not store, mix or apply this product or spray solutions of this product in unlined steel 
(except stainless steel), galvanized steel containers, or sprayer tanks. This product or 
spray solutions of this product will react with these containers and tanks and produce 
hydrogen gas which may form a highly combustible mixture. This gas mixture could 
flash or explode, causing serious personal injury, if ignited by spark, open flame, lighted 
cigarette, welder torch, or other ignition source. 
 
Mix, store and apply spray solutions of this product using only stainless steel, fiberglass, 
plastic, or plastic-lined steel containers. 
 
DIRECTIONS FOR USE 
 
It is a violation of federal law to use this product in a manner inconsistent with its 
labeling. 
 
Endangered Species Protection Requirements 
 
It is a federal offense to use any pesticide in a manner that results in an unauthorized 
“take” (e.g., kill or otherwise harm) of an endangered species and certain threatened 
species, under the Endangered Species Act section 9. When using this product, you 
must follow the measures contained in the Endangered Species Protection Bulletin for 
the area in which you are applying the product. You must obtain a Bulletin no earlier 
than six months before using this product. To obtain Bulletins, consult 
http://www.epa.gov/espp/, call 1-844-447-3813, or email ESPP@epa.gov. You must use 
the Bulletin valid for the month in which you will apply the product. 
 
 
Do not apply this product in a way that will contact workers or other persons, either 
directly or through drift. Only protected handlers may be in the area during application. 
For any requirements specific to your state or tribe, consult the agency responsible for 
pesticide regulation. 
 
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

Halex GT Herbicide 
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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. Exception: If the product is soil-injected or soil-
incorporated, the Worker Protection Standard, under certain circumstances, allows 
workers to enter the treated area if there will be no contact with anything that has 
been treated. 
 
PPE required for early entry to treated areas that is permitted under the Worker 
Protection Standard and that involves contact with anything that has been treated, 
such as plants, soil, or water, is: 
 
o Coveralls over short-sleeved shirt and short pants 
o 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. 
o Chemical-resistant footwear plus socks 
o Chemical-resistant headgear for overhead exposure 
 
FAILURE TO FOLLOW THE DIRECTIONS FOR USE AND PRECAUTIONS ON THIS 
LABEL MAY RESULT IN POOR WEED CONTROL, CROP INJURY, OR ILLEGAL 
RESIDUES. 
 
Sale, use, and distribution of this product in Nassau and Suffolk Counties in the 
State of New York is prohibited. 
 
PRODUCT INFORMATION 
 
Halex® GT Herbicide is a systemic, postemergence herbicide for contact followed by 
residual control of weeds in Glyphosate Tolerant (GT) field corn. Halex GT is also a 
preemergence herbicide for control of weeds in grain sorghum. Halex GT is a 
combination of the herbicides glyphosate, mesotrione and S-metolachlor.

Halex GT Herbicide 
Page 7 
 
WEED RESISTANCE MANAGEMENT 
 
To reduce the risk of weeds developing resistance to HPPD inhibitors, do not apply 
other postemergence HPPD inhibitor herbicides (e.g., Callisto, Impact®, or Laudis®) in 
the same season or on the same field where Halex GT Herbicide has been applied 
Consider weed resistance management strategies that include two or more modes of 
action where a minimum of two modes of action are effective at controlling the target 
weed when either are applied alone. 
 
Read and follow all label directions. 
 
Halex GT Herbicide contains three herbicide active ingredients and three modes of 
action and can be an effective component of a weed resistance management strategy. 
 
Triazine and Acetolactate Synthase (ALS) Resistance 
 
Naturally occurring biotypes of certain broadleaf and grass weed species with 
resistance to triazine or ALS herbicides are known to exist. If weed biotypes resistant to 
triazine or ALS inhibitors are present in the field, Halex GT Herbicide will control them if 
they are listed in Table 1. 
 
Glyphosate Resistance 
 
Some naturally occurring weed biotypes resistant to glyphosate may exist through 
normal genetic variability in any weed population. The repeated use of herbicides with 
the same mode of action is known to lead, under certain conditions, to a selection of 
resistant weeds. Certain agronomic practices reduce the likelihood that resistant weed 
populations will develop and integrated strategies are known to manage such problem 
weeds. 
 
Glyphosate is one of the active ingredients in Halex GT Herbicide, so glyphosate 
resistance management is critical. Halex GT Herbicide will control broadleaf weeds that 
are showing increased tolerance or resistance to glyphosate. When applying Halex GT 
Herbicide to broadleaf weeds that are suspected or known to be resistant to glyphosate, 
tank mix with atrazine or dicamba to provide an additional mode of action. Follow all 
label directions and restrictions for the atrazine product tank mixed with Halex GT 
Herbicide. 
 
Halex GT Herbicide will not provide control of emerged grasses that are resistant to 
glyphosate. For control of glyphosate resistant grass weeds, a weed control program 
that includes a preemergence grass herbicide will reduce the dependence on 
glyphosate. 
 
The Best Weed Management practice includes the diversification of glyphosate-
dependent weed control programs with alternative mode of action herbicides or cultural 
practices.

Halex GT Herbicide 
Page 8 
 
 
a. In Roundup Ready (RR™) corn and RR soybean systems do not use more than 
two applications of a glyphosate based herbicide over a two-year period. 
Diversify with alternative mode of action herbicides and/or cultural practices. 
b. In RR cotton, a maximum of three applications of a glyphosate based herbicide 
may be used if employing in-crop cultivation and/or residual herbicides. 
c. Use alternative (non-glyphosate) burndown and/or residual herbicides for RR 
crops likely to require more than one application of glyphosate. 
d. To help manage RR resistant volunteers rotate RR crops with conventional or 
non-RR crops. 
 
Principles of Herbicide Resistant Weed Management 
 
Scout and know your field 
• Know weed species present in the field to be treated through scouting and field 
history. An understanding of weed biology is useful in designing a resistance 
management strategy. Ensure the weed management program will control all 
weeds present. 
• Fields should be scouted prior to application to determine species present and 
growth stage. Always apply this herbicide at the full labeled rate and correct timing 
for the weeds present in the field. 
• Utilize non-herbicidal practices to add diversity 
• Use diversified management tactics such as cover crops, mechanical weed control, 
harvest weed seed control, and crop rotation as appropriate. 
• Use good agronomic practices, start clean and stay clean 
• Use good agronomic practices that enhance crop competitiveness. 
• Plant into weed-free fields utilizing tillage or an effective burndown herbicide for 
control of emerged weeds. 
• Sanitize farm equipment to avoid spreading seed or vegetative propagules prior to 
leaving fields. 
 
Difficult to control weeds 
• Fields with difficult to control weeds should be planted in rotation with crops that 
allow the use of herbicides with an alternative mode of action or different 
management practices. 
• Difficult to control weeds may require sequential applications, such as a broad 
spectrum preemergence herbicide followed by one or more postemergence 
herbicide applications. Utilize herbicides containing different modes of action 
effective on the target weeds in sequential applications. 
 
Do not overuse the technology 
• Do not use 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.

Halex GT Herbicide 
Page 9 
 
• Scout and inspect fields following application 
• Prevent an influx of weeds into the field by controlling weeds in field borders. 
• Scout fields after application to verify that the treatment was effective. 
• Suspected herbicide-resistant weeds may be identified by these indicators 
o Failure to control a weed species normally controlled by the herbicide at the 
dose applied, especially if control is achieved on adjacent weeds; 
o A spreading patch of non-controlled plants of a particular weed species; and 
o Surviving plants mixed with controlled individuals of the same species. 
• Report non-performance of this product to your Syngenta retailer, Syngenta 
representative, or call 1-866-Syngent(a) (866-796-4368). If resistance is suspected 
ensure weed escapes are controlled using an herbicide with an effective mode of 
action and/or use non-chemical means to prevent further seed production. 
 
Prevent weed escapes before, during, and after harvest 
• Do not allow weed escapes to produce seed or vegetative structures such as tubers 
or stolons which contribute to spread and survival. Consider harvest weed seed 
management and control weeds post-harvest to prevent seed production. 
 
Resistant Weeds 
• Contact your local Syngenta representative, retailer, crop advisor or extension agent 
to determine if weeds resistant to modes of action contained in this product are 
present in your area. 
• Do not assume that each listed weed is being controlled by multiple modes of action. 
Premixes are intended to broaden the spectrum of weeds that are controlled. Some 
weeds may be controlled by only one of the active ingredients in this product. 
• If resistant biotypes have been reported, use the full labeled rate of this product, 
apply at the labeled timing, and tank-mix with an additional different mode of action 
product so there are multiple effective modes of application for each suspected 
resistant weed. 
 
Following a postemergence application of Halex GT Herbicide, susceptible weeds take 
up the herbicide through the treated foliage and cease growth soon after application. 
Halex GT Herbicide is also absorbed through the soil and/or by the foliage of emerged 
weeds. Complete death of the weeds may take up to 2 weeks. 
 
When applied to glyphosate-tolerant corn, Halex GT Herbicide provides 3-4 weeks of 
residual control of newly emerging susceptible weeds (see Table 1) through root and 
shoot absorption. 
 
Do not apply under conditions which favor runoff or wind erosion of soil containing this 
product to nontarget areas. To prevent off-site movement due to runoff or wind erosion, 
avoid treating powdery dry or light soils when conditions are favorable for wind erosion. 
Under these conditions, ensure that the soil surface is settled by rainfall or irrigation 
first. Do not apply to impervious substrates such as paved or highly compacted 
surfaces. Do not use tailwater from the first flood or furrow irrigation of treated fields to 
treat nontarget crops unless at least ½ inch of rainfall has occurred between application

Halex GT Herbicide 
Page 10 
 
and the first irrigation. 
 
USE RESTRICTIONS 
 
1. Do not cultivate corn within 7 days before or after a Halex GT Herbicide 
application as weed control from the Halex GT Herbicide application may be 
reduced. 
 
2. Do not apply Halex GT Herbicide through any type of irrigation system. 
 
3. Do not apply Halex GT Herbicide with suspension fertilizers. 
 
4. Do not apply Halex GT Herbicide to glyphosate-tolerant corn with urea 
ammonium nitrate (UAN) as the carrier. 
 
5. Do not apply more than 4 pt of Halex GT Herbicide per acre per year to 
glyphosate-tolerant corn. 
 
6. Do not apply more than 6 pt of Halex GT Herbicide per acre per year to grain 
sorghum. 
 
7. Do not apply Halex GT Herbicide to ground that has been or will be treated with 
Callisto® in the same season. 
 
USE PRECAUTIONS 
 
1. Halex GT Herbicide can be applied postemergence to Glyphosate Tolerant (e.g. 
Roundup Ready®, Agrisure™ GT) corn only. An application of Halex GT 
Herbicide to a corn hybrid that is not Glyphosate Tolerant will result in crop 
death. 
 
2. When weeds are stressed due to drought, heat, lack of fertility, flooding, or 
prolonged cool temperatures, control can be reduced or delayed since the weeds 
are not actively growing. Weed escapes or re-growth may occur when 
application is made under prolonged stress conditions. Optimum weed control 
will be obtained if an application of Halex GT Herbicide is made following label 
directions when weeds are actively growing. 
 
3. If an activating rain (0.25 inches) is not received within 7-10 days after the 
postemergence application, residual weed control will be reduced. 
 
4. Avoid drift onto adjacent crops. Severe damage or destruction may be caused 
by contact of Halex GT Herbicide to any vegetation (including leaves, green 
stems, exposed non-woody roots, or fruit) of crops, trees, and other desirable 
plants to which treatment is not intended.

Halex GT Herbicide 
Page 11 
 
5. Severe corn injury resulting in yield loss may occur if Halex GT Herbicide is 
applied postemergence to corn crops that were treated with Counter®, Lorsban® 
or other organophosphate containing soil insecticides. 
 
6. Severe corn injury resulting in yield loss may occur if Halex GT Herbicide is 
applied foliar postemergence in a tank mix with any organophosphate or 
carbamate insecticide. 
 
7. Severe corn injury resulting in yield loss may occur if any foliar organophosphate 
or carbamate insecticide is applied postemergence within 7 days before or 7 
days after Halex GT Herbicide application. 
 
8. Severe corn injury may occur if Halex GT Herbicide is applied postemergence in 
a tank mix with emulsifiable concentrate (EC formulation) products. 
 
9. Halex GT Herbicide may be applied with pyrethroid insecticides such as 
Warrior®. 
 
10. Circulation before dispensing is required. 
 
11. To avoid contamination, ensure that the spray system is thoroughly cleaned with 
water and a commercial tank cleaner before and after each use. 
 
 
WEEDS CONTROLLED 
 
For best results, apply Halex GT Herbicide to actively growing weeds. For the best 
protection of the corn crop’s yield potential, apply Halex GT Herbicide before the weeds 
exceed 4 inches in height or length. Susceptible weeds which emerge soon after an 
application of Halex GT Herbicide will be controlled for an additional 3-4 weeks. 
 
Table 1. Weeds Controlled with Postemergence Applications of Halex GT 
Herbicide 
 
 
3.6-4.0 pt/A 
plus NIS 
plus AMS 
3.6-4.0 pt/A 
plus AAtrex 4L 
(or equivalent) 
plus NIS plus 
AMS 
Common Name 
Weed 
Type1 Scientific Name 
Apply to 
weeds less 
than 4” in 
height or 
length 
Apply to weeds 
4-10” in height 
or length 
Amaranth, palmer B Amaranthus palmeri C2,3 C 
Amaranth, Powell B Amaranthus powellii C C 
Amaranth, spiny B Amaranthus spinosus C C 
Anoda, spurred B Anoda cristata C C 
Atriplex B Chenopodium orach C C

Halex GT Herbicide 
Page 12 
 
 
3.6-4.0 pt/A 
plus NIS 
plus AMS 
3.6-4.0 pt/A 
plus AAtrex 4L 
(or equivalent) 
plus NIS plus 
AMS 
Common Name 
Weed 
Type1 Scientific Name 
Apply to 
weeds less 
than 4” in 
height or 
length 
Apply to weeds 
4-10” in height 
or length 
Barnyardgrass G Echinochloa crus-galli C C 
Beggarweed, Florida B Desmodium tortuosum C C 
Bluegrass, annual G Poa annua C C 
Brome, downy G Bromus tectorum C C 
Buckwheat, wild B Polygonum convolvulus C4 PC2 
Buffalobur B Solanum rostratium C C 
Burcucumber B Sicyos angulatus C PC 
Carpetweed B Mollugo verticillata C C 
Cheat G Bromus secalinus C C 
Chickweed, common B Stellaria media C C 
Chickweed, mouseear B Cerastium vulgatum C C 
Cocklebur, common B Xanthium strumarium C C 
Copperleaf, hophornbeam B Acalypha ostryifolia C C 
Corn, volunteer (non-GT) G Zea mays C5 C5 
Crabgrass, large G Digitaria sanguinalis C C 
Crabgrass, smooth G Digitaria ischaemum C C 
Crotalaria, showy B Crotalaria spectabilis C C 
Croton, tropic B Croton glandulosus C C 
Crowfootgrass G Dactyloctenium aegyptium C C 
Cupgrass, woolly G Eriochloa villosa C6 C6 
Dandelion, common B Taraxacum officinale C7 PC 
Dock, curly B Rumex crispus C PC 
Eclipta B Eclipta prostrata C C 
Foxtail, bristly G Setaria verticillata C C 
Foxtail, giant G Setaria faberii C C 
Foxtail, green G Setaria viridis C C 
Foxtail, yellow G Setaria pumila C C 
Galinsoga B Galinsoga parviflora C C 
Goosegrass G Eleusine indica C C 
Groundcherry, smooth B Physalis longifolia C PC 
Groundsel, common B Senecio vulgaris C C 
Hemp B Cannabis sativa C C 
Henbit B Lamium amplexicaule C C 
Horseweed (marestail) B Conyza canadensis C3 C 
Jimsonweed B Datura stramonium C C 
Johnsongrass B Sorghum halepense C C 
Knotweed, prostrate B Polygonum aviculare C C 
Kochia B Kochia scoparia C8 PC 
Lambsquarters, common B Chenopodium album C C 
Mallow, Venice B Hibiscus trionum C C 
Marshelder B Iva xanthifolia C C 
Millet, wild-proso G Panicum miliaceum C C 
Morningglory, entireleaf B Ipomoea hederacea C4 PC

Halex GT Herbicide 
Page 13 
 
 
3.6-4.0 pt/A 
plus NIS 
plus AMS 
3.6-4.0 pt/A 
plus AAtrex 4L 
(or equivalent) 
plus NIS plus 
AMS 
Common Name 
Weed 
Type1 Scientific Name 
Apply to 
weeds less 
than 4” in 
height or 
length 
Apply to weeds 
4-10” in height 
or length 
Morningglory, ivyleaf B Ipomoea hederacea C4 PC 
Morningglory, pitted B Ipomoea lacunose C4 PC 
Morningglory, tall B Ipomoea purpurea C4 PC 
Mustard, wild B Brassica kaber C C 
Nightshade, black B Solanum nigrum C C 
Nightshade, Eastern black B Solanum ptycanthum C C 
Nightshade, hairy B Solanum sarrachoides C C 
Nutsedge, yellow S Cyperus esculentus C PC 
Nutsedge, purple S Cyperus rotundus C PC 
Oat, wild G Avena fatua C C 
Panicum, fall G Panicum dichotomiflorum C C 
Panicum, Texas G Panicum texanum C C 
Pennycress, field B Thlaspi arvense C C 
Pigweed, prostrate B Amaranthus blitoides C C 
Pigweed, redroot B Amaranthus retroflexus C C 
Pigweed, smooth B Amaranthus hybridus C C 
Pigweed, tumble B Amaranthus albus C C 
Pokeweed, common B Phytolacca americana C C 
Potato, volunteer B Solanum spp. C C 
Puncturevine B Tribulus terrestris C PC 
Purslane, common B Portulaca oleracea C C 
Pusley, Florida B Richardia scabra C PC 
Ragweed, common B Ambrosia artemisiifolia C3 C 
Ragweed, giant B Ambrosia trifida C3 C 
Sandbur, field G Cenchrus incertus C C 
Sandbur, southern G Cenchrus echinatus C C 
Senna, coffee B Senna occidentalis C C 
Sesbania, hemp B Sesbania exaltata C C 
Shattercane G Sorghum bicolor C C 
Shepherdspurse B Capsella bursa-pastoris C C 
Sicklepod B Senna obtusifolia C6 C6 
Sida, prickly (teaweed) B Sida spinosa C PC 
Signalgrass, broadleaf G Brachiaria platyphylla C C 
Smartweed, ladysthumb B Polygonum persicaria C C 
Smartweed, pale B Polygonum lapathifolium C C 
Smartweed, Pennsylvania B Polygonum pensylvanicum C C 
Sorghum, grain (milo) G Sorghum bicolor C C 
Spurge, prostrate B Euphorbia humistrata C C 
Spurge, spotted B Euphorbia maculata C C 
Starbur, bristly G Ancanthospornum 
hispidum 
C C 
Stinkgrass G Eragrostis cilianensis C C 
Sunflower, common B Helianthus annuus C C

Halex GT Herbicide 
Page 14 
 
 
3.6-4.0 pt/A 
plus NIS 
plus AMS 
3.6-4.0 pt/A 
plus AAtrex 4L 
(or equivalent) 
plus NIS plus 
AMS 
Common Name 
Weed 
Type1 Scientific Name 
Apply to 
weeds less 
than 4” in 
height or 
length 
Apply to weeds 
4-10” in height 
or length 
Thistle, Canada B Circium arvense C C 
Thistle, Russian B Salsola iberica C8 C 
Velvetleaf B Abutilon theophrasti C C 
Waterhemp, common B Amaranthus rudis C3 C 
Waterhemp, tall B Amaranthus tuberculatus C3 C 
Witchgrass G Panicum capillare C C 
1 B = Broadleaf, G = Grass, S = Sedge 
2 C = Control, PC = Partial Control 
3 For glyphosate resistant weeds such as common ragweed, giant ragweed, horseweed (marestail), 
Palmer amaranth and waterhemp, the addition of atrazine will improve control 
4 Maximum runner length of <4” 
5 Will not control Glyphosate-Tolerant volunteer corn 
6 Will not provide residual control 
7 Plant diameter of <4” for control 
8 Control may be reduced at the button stage or when less than 2 inches in height 
 
ROTATIONAL CROPS 
 
If the corn or grain sorghum crop is lost or destroyed following an application of Halex 
GT Herbicide, follow the rotational guidelines below. If Halex GT Herbicide is applied 
sequentially or in a tank mix with other herbicides, refer to the rotational guidelines on 
all other herbicide labels and follow the most restrictive guidelines. 
 
Table 2. Time Interval Between Halex GT Application and Replanting or Planting 
of Rotational Crop 
 
Crop Replant/Rotational Interval 
Corn (all types) 
Sweet sorghum 
Grain sorghum (Concep® treated only) 
Anytime 
Barley 
Oats 
Rye 
Wheat 
4 ½ months 
Alfalfa 
Asparagus 
Cotton 
Kentucky bluegrass grown for seed 
Peanuts 
Peas1,2 
10 Months

Halex GT Herbicide 
Page 15 
 
Crop Replant/Rotational Interval 
Potato 
Rhubarb 
Rice 
Ryegrass (perennial and annual) grown for seed 
Snap beans1,2 
Soybeans 
Sunflowers 
Tall fescue grown for seed 
Tobacco 
Canola 
Flax 12 Months 
All other rotational crops 18 Months 
 
1Plant these rotational crops only if the following criteria below have been met. If all 
criteria are not met, plant peas and snap beans a minimum of 18 months following 
Halex GT application. 
• A minimum of 20” of rainfall plus irrigation has been received between application 
and planting of the rotational crop. 
• Soil pH is 6.0 or greater. 
• Application of Halex GT applied no later than June 30th the year preceding rotational 
crop planting. 
• No other HPPD herbicides (e.g., Callisto, Callisto® Xtra, Lexar® EZ, Lumax® EZ, 
Zemax®, Armezon™, Balance® Flexx, Capreno®, Corvus®, Impact, or Laudis) 
were applied the year prior to planting peas and snap beans. 
2Do not plant peas or snap beans on sand, sandy loam or loamy sand soils in 
Minnesota or Wisconsin. 
 
APPLICATION PROCEDURES 
 
Refer to the CROP USE DIRECTIONS section for specific crop instructions. and listed 
tank mixes. 
 
For Ground Applications: 
 
Flat fan (of 80 or 110) or Turbo Tee Jet nozzles will provide optimum coverage. Do 
not use flood jet nozzles or controlled droplet application equipment for applications of 
Halex GT Herbicide. 
 
Nozzles may be angled forward or backward 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. 
 
Apply Halex GT Herbicide in a spray volume of 10-30 gal/A. Use a pump that can 
maintain a pressure of at least 35-40 psi at the nozzles (check nozzle manufacturer’s 
instructions) and provide proper agitation within the tank to keep the product dispersed.

Halex GT Herbicide 
Page 16 
 
Lower pressures may be used with extended range or drift reduction nozzles. When 
weed foliage is dense, use a minimum of 15 gal/A. 
 
Always ensure that agitation is maintained until spraying is completed, even if spraying 
is stopped for brief periods. If the agitation is stopped for more than 5 minutes, 
resuspend the spray solution by running on full agitation prior to spraying. 
 
For Aerial Applications: 
 
Halex GT may be applied aerially for postemergence weed control in Glyphosate 
Tolerant corn and preplant or preemergence weed control in grain sorghum only in the 
following states: Alabama, Arizona, Arkansas, California, Colorado, Connecticut, 
Delaware, Florida, Georgia, Idaho, Illinois, Indiana, Iowa, Kansas, Kentucky, Louisiana, 
Maine, Maryland, Massachusetts, Michigan, Minnesota, Mississippi, Missouri, Montana, 
Nevada, New Hampshire, New Jersey, New Mexico, New York, North Carolina, North 
Dakota, Nebraska, Ohio, Oklahoma, Oregon, Pennsylvania, Rhode Island, South 
Carolina, South Dakota, Tennessee, Texas, Utah, Vermont, Virginia, Washington, West 
Virginia, Wisconsin and Wyoming. 
 
Aerial applications must be made in a minimum of 2 gallons of water per acre. 
 
 
MIXING PROCEDURES 
 
Always refer to labels of other pesticide products for mixing directions and precautions 
which may differ from those outlined here. Use in accordance with the most restrictive 
of label limitations and precautions. Do not exceed any label dosage rates. This 
product cannot be mixed with any product containing a label prohibition against such 
mixing. Do not tank mix Halex GT Herbicide with any other insecticide, fungicide, 
fertilizer solution, or adjuvant not listed on the label without testing compatibility, as poor 
mixing may result. Test the compatibility of any tank-mix combination on a small scale 
such as a jar test before actual tank mixing. 
 
It is the pesticide user’s responsibility to ensure that all products are registered for the 
intended use. Read and follow the applicable restrictions and limitations and directions 
for use on all product labels involved in tank mixing. Users must follow the most 
restrictive directions for use and precautionary statements of each product in the tank 
mixture. 
 
Follow the mixing instructions for adding Halex GT Herbicide to the spray tank: 
 
Only use sprayers in good running condition with good agitation. Ensure the sprayer is 
cleaned according to instructions on label of the product used prior to Halex GT 
Herbicide. Use only clean water for the spray solution. Ensure that all in-line strainer 
and nozzle screens in the sprayer are 50-mesh or coarser. Avoid using screens finer 
than 50-mesh.

Halex GT Herbicide 
Page 17 
 
 
When adding products to the spray tank, make sure each product is added separately 
and thoroughly agitated before adding the next product. If using an induction tank, add 
only one product at a time. For example, add water, then add atrazine to the induction 
tank and transfer to spray tank, rinse induction tank with water, then add Halex GT. 
 
1. Fill tank ½ full of clean water and start agitation. 
 
2. Add ammonium sulfate (AMS). 
 
3. Add nonionic surfactant (NIS). 
 
4. Add atrazine – make sure atrazine is fully dispersed before other products are 
added to the mix. 
 
5. Add fungicide (if applicable). 
 
6. Add Halex GT. 
 
7. Add EC products (e.g. insecticides) last. Be aware that adding any EC type 
product will increase the risk for crop injury. 
 
8. Fill tank with water to the desired level. 
 
 
ADJUVANTS 
 
For postemergence applications to Glyphosate Tolerant (GT) corn or burndown 
applications to grain sorghum, add a nonionic surfactant (NIS) at 1-2 qt/100 gallons of 
water (0.25-0.5% v/v) to the spray solution. Use the higher rate of NIS when weeds are 
growing under stress conditions (e.g. cool temperatures, dry weather, etc.). 
 
In addition to NIS add spray grade ammonium sulfate (AMS) at 8.5-17.0 lb/100 gallons 
of water. When using liquid AMS products, use a rate that delivers an AMS equivalent 
of 8.5-17.0 lb/100 gallons of water. 
 
The use of Halex GT Herbicide with urea ammonium nitrate (UAN) instead of 
ammonium sulfate (AMS) will result in postemergence glyphosate-tolerant corn injury 
and reduced grass weed control. 
 
CLEANING EQUIPMENT AFTER APPLICATION 
For best results, quantifiably pattern test each specific aerial application vehicle used for 
aerial application of Halex GT initially and every year thereafter.

Halex GT Herbicide 
Page 18 
 
Special attention must be given to cleaning equipment before spraying a crop other than 
Glyphosate Tolerant corn or grain sorghum. Mix only as much spray solution as 
needed. 
 
Flush tank, hoses, boom, and nozzles with clean water. 
 
1. Prepare a cleaning solution of 1 gallon of household ammonia per 25 gal of 
water. Many commercial spray tank cleaners may be used. 
 
2. 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 re-circulate the 
cleaning solution for at least 15 minutes. Remove all visible deposits 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 2-5. 
 
6. Remove nozzles, screens, and strainers and clean separately in the ammonia 
solution after completing the above procedures. 
 
7. Rinse the complete spraying system with clean water.

Halex GT Herbicide 
Page 19 
 
SPRAY DRIFT MANAGEMENT 
 
MANDATORY SPRAY DRIFT MANAGEMENT 
 
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 select nozzle and pressure that deliver medium or 
coarser droplets in accordance with American Society of Agricultural & 
Biological Engineers Standard 641 (ASABE S641). 
• If the windspeed is 10 miles per hour or less, applicators must use ½ swath 
displacement upwind at the downwind edge of the field. When the windspeed 
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 
windspeed 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: 
• Do not release spray at a height greater than 3 feet above the ground or crop 
canopy. 
• Applicators are required to select nozzle and pressure that deliver medium or 
coarser droplets in accordance with American Society of Agricultural & 
Biological Engineers Standard 572 (ASABE S572). 
• Do not apply when wind speeds exceed 15 mph at the application site. 
• Do not apply during temperature inversions. 
 
Boomless Ground Applications: 
• Applicators are required to select nozzle and pressure that deliver medium or 
coarser droplets in accordance with American Society of Agricultural & 
Biological Engineers Standard 572 (ASABE S572). 
• Do not apply when wind speeds exceed 15 miles per hour at the application 
site. 
• Do not apply during temperature inversions.

Halex GT Herbicide 
Page 20 
 
SPRAY DRIFT ADVISORIES 
THE APPLICATOR IS RESPONSIBLE FOR AVOIDING OFF-SITE SPRAY DRIFT. 
BE AWARE OF NEARBY NON-TARGET SITES AND ENVIRONMENTAL 
CONDITIONS. 
 
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 
• Volume - Increasing the spray volume so that larger droplets are produced will 
reduce spray drift. Use the highest practical spray volume for the application. If a 
greater spray volume is needed, consider using a nozzle with a higher flow rate. 
• Pressure - Use the lowest spray pressure recommended for the nozzle to produce 
the target spray volume and droplet size. 
• Spray Nozzle - Use a spray nozzle that is designed for the intended application. 
Consider using nozzles designed to reduce drift. 
 
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. 
 
BOOM HEIGHT – Ground Boom 
• For ground equipment, the boom should remain level with the crop and have 
minimal bounce. 
 
RELEASE HEIGHT - Aircraft 
• Higher release heights increase the potential for spray drift. 
 
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. 
 
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.

Halex GT Herbicide 
Page 21 
 
• The presence of an inversion can be indicated by ground fog or by the movement of 
smoke from a ground source or an aircraft smoke generator. 
• Smoke that layers and moves laterally in a concentrated cloud (under low wind 
conditions) indicates an inversion, while smoke that moves upward and rapidly 
dissipates indicates good vertical air mixing. 
• Avoid applications during temperature inversions. 
 
WIND 
• Drift potential generally increases with wind speed. 
• AVOID APPLICATIONS DURING GUSTY WIND CONDITIONS. 
• Applicators need to be familiar with local wind patterns and terrain that could affect 
spray drift. 
 
Boomless Ground Applications 
• Setting nozzles at the lowest effective height will help to reduce the potential for 
spray drift. 
 
Handheld Technology Applications 
• Take precautions to minimize spray drift. 
 
 
CROP USE DIRECTIONS – GLYPHOSATE TOLERANT FIELD CORN 
 
Halex GT Herbicide may be applied postemergence only in Glyphosate Tolerant (e.g. 
Roundup Ready, Agrisure GT) corn for control of the weeds listed in Table 1. 
 
When Glyphosate Tolerant corn is grown under no-till conditions, control all emerged 
weeds at the time of corn planting with a glyphosate or paraquat based herbicide 
program. Following a burndown weed control application and after Glyphosate Tolerant 
corn emergence, Halex GT Herbicide can be applied postemergence to control the 
weeds listed in Table 1. 
 
PREEMERGENCE 
 
Halex GT Herbicide is specifically formulated for postemergence in crop use and does 
not contain a corn safener. Therefore, Halex GT Herbicide is not labeled for early 
preplant or preemergence applications. 
 
POSTEMERGENCE – HALEX GT HERBICIDE ALONE 
 
Halex GT Herbicide may be applied at a rate of 3.6-4.0 pt/A from corn emergence up to 
30 inches in height or the 8-leaf stage of corn growth. Apply Halex GT Herbicide to 
actively growing weeds listed in Table 1. For the best protection of the corn crops yield 
potential, apply Halex GT Herbicide before weeds exceed 4 inches in height, length or 
diameter. Use the higher end of the Halex GT Herbicide use rate range (4.0 pt/A) when 
weeds are stressed or weed populations are dense.

Halex GT Herbicide 
Page 22 
 
 
Apply Halex GT Herbicide with a non-ionic surfactant (NIS) and ammonium sulfate 
(AMS). See the ADJUVANTS section for specific adjuvant instructions. 
 
Visible effects on annual weeds occur within 2-4 days after application; effects on 
perennial weeds may take 7 days or longer. Extremely cool or cloudy weather following 
treatment may slow activity. 
 
Weeds susceptible to S-metolachlor or mesotrione which emerge soon after application 
of Halex GT Herbicide will be controlled after they absorb the herbicides from the soil. 
The active ingredients in Halex GT Herbicide are in adequate amounts to provide 3-4 
weeks of residual weed control extending through crop canopy. If an activating rain 
(0.25 inches) is not received within 7-10 days after the postemergence application, 
residual weed control will be reduced. 
 
Applying Halex GT Herbicide at rates less than 3.6 pt/A may result in incomplete weed 
control, as well as less residual weed control. Using reduced rates of Halex GT 
Herbicide also increases the risk for the development of weed resist biotypes. See the 
WEED RESISTANCE MANAGEMENT section of this label for specific instructions. 
 
HALEX GT HERBICIDE – SEQUENTIAL WEED CONTROL 
 
Halex GT Herbicide may be applied as the postemergence component of a two-pass 
weed control program. Apply Zemax (1.6 qt/A maximum rate), Lexar (2.25 qt/A 
maximum rate) or Lumax (2 qt/A maximum rate) preemergence and follow with a 
postemergence application of Halex GT Herbicide at 3.6-4.0 pt/A. Do not reduce the 
rate of Halex GT Herbicide when applied in a sequential program with these mesotrione 
containing products. 
 
Halex GT Herbicide can also be applied at a rate of 3.6-4.0 pt/A postemergence 
following a preemergence application of Expert®, Bicep II Magnum®, Bicep Lite II 
Magnum® and Dual II Magnum®. 
 
Apply Halex GT Herbicide with a non-ionic surfactant (NIS) and ammonium sulfate 
(AMS). See the ADJUVANTS section for specific adjuvant instructions. 
 
HALEX GT HERBICIDE – TANK MIX WITH AATREX® 4L OR AATREX® NINE-O® 
 
In tank mix with AAtrex, apply Halex GT Herbicide at 3.6-4.0 pt/A. If weeds are more 
than 4 inches tall, or for improved broadleaf weed control add AAtrex 4L or AAtrex 
Nine-O. Atrazine rates above 0.5 lb ai/A may result in glyphosate antagonism and 
reduced grass control.

Halex GT Herbicide 
Page 23 
 
Apply the tank mix of Halex GT Herbicide plus AAtrex with a non-ionic surfactant (NIS) 
and ammonium sulfate (AMS). See the ADJUVANTS section of this label for specific 
instructions. 
 
When tank mixing or sequentially applying atrazine or products containing atrazine with 
Halex GT Herbicide to Glyphosate Tolerant corn, do not exceed an application rate of 
2.0 pounds active ingredient of atrazine per acre for any single application and the total 
pounds of atrazine applied (lb ai per acre) must not exceed 2.5 pounds active ingredient 
per acre per year. 
 
If no atrazine was applied prior to corn emergence, apply a maximum of 2.0 lb ai/A 
broadcast. If a postemergence treatment is required following an earlier herbicide 
application, the total atrazine applied may not exceed 2.5 lb ai/A per calendar year. 
 
Do not apply any atrazine formulation if the corn is greater than 12 inches tall. 
 
HALEX GT HERBICIDE – TANK MIX WITH NORTHSTAR® CUSTOMPAK, 
CLARITY®, DISTINCT® OR STATUS® HERBICIDES 
 
Tank mix Halex GT at 3.6 to 4 pt/A + Northstar CustomPak herbicide or Clarity herbicide 
or Distinct herbicide or Status herbicide + nonionic surfactant (NIS) at 1 qt/100 gal + 
spray grade ammonium sulfate (AMS) for improved control of difficult broadleaf weeds 
as a postemergence application in GT corn. Refer to applicable tank mixture product 
label for specific application rates, precautions and restrictions. 
 
CORN USE RESTRICTIONS 
 
1. Pre-Grazing Interval (PGI): Do not graze or feed forage from treated areas for 45 
days following application. 
 
2. Pre-Harvest Interval (PHI): Do not harvest forage, grain, or stover within 45 days 
after application. 
 
3. Do not apply more than 4 pt per acre per year (0.1 lb ai/A mesotrione, 1.05 lb 
ai/A s-metolachlor, and 1.05 lb ae/A glyphosate). 
 
4. Do not make more than 1 application per year. 
 
5. Do not make applications of Halex GT Herbicide past the 8-leaf stage of growth 
(or >30 inches tall) in glyphosate-tolerant corn. 
 
6. It is the pesticide user’s responsibility to ensure that all products are registered 
for the intended use. Read and follow the applicable restrictions and limitations 
and directions for use on all product labels involved in tank mixing. Users must 
follow the most restrictive directions for use and precautionary statements of 
each product in the tank mixture.

Halex GT Herbicide 
Page 24 
 
 
CORN USE PRECAUTIONS 
 
1. Temporary crop response (transient bleaching) from postemergence applications 
to Glyphosate Tolerant corn may occur under extreme weather conditions or 
when the crop is suffering from stress. Corn quickly outgrows these effects and 
develops normally. 
 
2. If additional glyphosate is tank mixed or applied sequentially with Halex GT 
Herbicide as a postemergence treatment in Glyphosate Tolerant corn, refer to 
the specific glyphosate label for in crop rate restrictions. 
 
Refer to individual product labels for precautionary statements, restrictions, rates, 
approved uses, and a list of weeds controlled. 
 
GRAIN SORGHUM USE DIRECTIONS 
 
Halex GT can be applied preplant non-incorporated (up to 21 days before planting) up 
through preemergence for weed control in sorghum. Halex GT will control the emerged 
weeds listed in the Table 1 and will provide residual control of the weeds listed in Table 
3. 
 
The sorghum seed must be treated with a protectant that is effective for safening 
S-metolachlor to sorghum. Applying Halex GT preplant or preemergence to sorghum 
that is not seed protected for applications to S-metolachlor will result in crop death. 
Applying Halex GT postemergence to sorghum will result in crop death. 
 
Apply Halex GT as a broadcast non-incorporated spray at a rate of 4-6 pt/A beginning at 
21 days before planting and up through planting but prior to sorghum emergence. 
Applying Halex GT less than 7 days before sorghum planting will increase the risk of 
crop injury, especially if irrigation or rainfall is received following the application. Injury 
symptoms include temporary bleaching of newly emerging sorghum leaves or in 
extreme conditions, stunting or partial stand loss. Applying Halex GT more than 7 days 
(but not more than 21) prior to sorghum planting will reduce the risk of crop injury. 
 
If Halex GT is applied prior to planting, minimize disturbance of the herbicide treated soil 
barrier during the planting process in order to lessen the potential for poor weed control 
in the disturbed soil zone. 
 
Halex GT Sorghum Split Application: Halex GT may also be applied as a split 
application to grain sorghum. For a split application program, apply the first application 
as a non-incorporated early preplant (7-21 days before planting) treatment followed by a 
second Halex GT application as a preemergence application prior to sorghum 
emergence. The total amount of Halex GT applied in the split application program 
cannot exceed 6 pt/A per season.

Halex GT Herbicide 
Page 25 
 
For control of emerged weeds listed in Table 1, add a nonionic surfactant (NIS) type 
adjuvant at a rate of 0.25 to 0.5% v/v (1-2 qt/100 gallons) to the spray solution. Use the 
higher NIS rate of 0.5% v/v under adverse environmental conditions (high temperatures 
and/or low humidity). In addition to NIS, a spray grade AMS at a rate of 8.5-17 lb/100 
gallons of spray may be added to the solution for improved control of emerged weeds. 
 
Halex GT can be applied sequentially or in tank mixture with other herbicides registered 
for use in grain sorghum. Always refer to labels of the tank mix partners for use 
directions, precautions and restrictions. 
 
Restrictions: 
 
1. Do not apply more than 6 pt per acre per year (s-metolachlor 1.57 ai lb/A + 
mesotrione 0.16 lb ai/A + glyphosate 1.57 lb ae/A). 
 
2. Do not apply Halex GT to sorghum grown on sandy soils (sand, sandy loam or 
loamy sand). 
 
3. Do not apply Halex GT to emerged grain sorghum or plant death will occur. 
 
4. Do not use Halex GT in the production of forage sorghum, sweet sorghum 
(sorgo), sudangrass, sorghum-sudangrass hybrids, or dual purpose sorghum. 
 
5. Sorghum seed must be treated with Concep® III herbicide safener prior to 
planting, or severe crop injury may occur. 
 
 
WEEDS CONTROLLED IN GRAIN SORGHUM 
 
When applied as directed in this label at 6 pt/A, Halex GT will provide preemergence 
control or partial control the weeds listed in Table 3. Optimum weed control will be 
obtained if Halex GT is applied according to all label directions. 
 
If a significant rainfall does not occur within 7 days after application, weed control may 
be decreased. If irrigation is available, apply ½ to 1 inch of water. If irrigation is not 
available, a uniform shallow cultivation as soon as weeds emerge will provide improved 
control.

Halex GT Herbicide 
Page 26 
 
Table 3. Weeds Controlled or Partially Controlled by Preemergence Applications 
of Halex GT 
 
Common Name 
Weed 
Type1 Scientific Name 
Control or Partial 
Control2 
Amaranth, Palmer B Amaranthus palmeri C 
Amaranth, Powell B Amaranthus powellii C 
Barnyardgrass G Echinochloa crus-galli C 
Buffalobur B Solanum rostratum C 
Carpetweed B Mollugo verticillata C 
Cocklebur, common B Xanthium strumarium PC 
Crabgrass, large G Digitaria sanguinalis C 
Crowfootgrass G Dactyloctenium aegyptium C 
Cupgrass, prairie G Eriochloa contracta C 
Cupgrass, Southwestern G Eriochloa acuminata C 
Cupgrass, woolly G Eriochloa villosa PC 
Foxtail, giant G Setaria faberi C 
Foxtail, green G Setaria viridis C 
Foxtail, robust (purple, white) G Setaria viridis C 
Foxtail, yellow G Setaria pumila C 
Galinsoga B Galinsoga parviflora C 
Goosegrass G Eleusine indica C 
Horseweed (marestail) B Conyza canadensis PC 
Jimsonweed B Datura stramonium C 
Johnsongrass, seedling G Sorghum halepense PC 
Kochia B Kochia scoparia PC 
Lambsquarters, common B Chenopodium album C 
Millet, foxtail G Setaria italica C 
Millet, wild proso G Panicum miliaceum PC 
Morningglory, ivyleaf B Ipomoea hederacea PC 
Morningglory, entireleaf B Ipomoea hederacea PC 
Nightshade, black B Solanum nigrum C 
Nightshade, Eastern black B Solanum ptycanthum C 
Nightshade, hairy B Solanum sarachoides C 
Nutsedge, yellow S Cyperus esculentus C 
Panicum, browntop G Panicum fasciculatum C 
Panicum, fall G Panicum dichotomiflorum C 
Panicum, Texas G Panicum texanum PC 
Pigweed, redroot B Amaranthus retroflexus C 
Pigweed, smooth B Amaranthus hybridus C 
Purslane, common B Portulaca oleracea C 
Pusley, Florida B Richardia scabra C 
Ragweed, common B Ambrosia artemisiifolia PC 
Ragweed, giant B Ambrosia trifida PC 
Rice, red G Oryza sativa C 
Sandbur, field G Cenchrus incertus PC 
Shattercane G Sorghum bicolor PC 
Sida, prickly B Sida spinosa PC 
Signalgrass, broadleaf G Brachiaria platyphylla PC

Halex GT Herbicide 
Page 27 
 
Common Name 
Weed 
Type1 Scientific Name 
Control or Partial 
Control2 
Smartweed, ladysthumb B Polygonum persicaria C 
Smartweed, Pennsylvania B Polygonum pensylvanicum C 
Sprangletop, red G Leptochloa filiformis C 
Velvetleaf B Abutilon theophrasti C 
Waterhemp, common B Amaranthus rudis C 
Waterhemp, tall B Amaranthus tuberculatus C 
Witchgrass G Panicum capillare C 
1 B=Broadleaf, G=Grass, S=Sedge 
2 C = Control, PC = Partial Control 
 
STORAGE AND DISPOSAL 
 
Do not contaminate water, food, or feed by storage and disposal. 
 
Pesticide Storage 
 
Keep container tightly closed when not in use. Product can be stored at temperatures 
as low as -10°F. Do not store near seeds, fertilizers, or food stuffs. Keep away from 
heat and flame. 
 
Pesticide Disposal 
 
Open dumping is prohibited. Waste resulting from the use of this product must be 
disposed of on site or at an approved waste disposal facility. Thoroughly rinse the 
spray equipment after use. Pesticide wastes are acutely hazardous. Improper disposal 
of excess pesticide, spray mixture, or rinsate is a violation of Federal Law. If these 
wastes cannot be disposed of as described above, contact your State Pesticide or 
Environmental Control Agency, or the Hazardous Waste Representative at the nearest 
EPA Regional Office for guidance. 
 
Container Handling [equal to or less than 5 gallons] 
 
Non-refillable container. Do not reuse or refill this container. Offer for recycling if 
available. Triple rinse container (or equivalent) promptly after emptying. Triple rinse as 
follows: Empty the remaining contents into application equipment or a mix tank and 
drain for 10 seconds after the flow begins to drip. Fill the container ¼ full with water and 
recap. Shake for 10 seconds. Pour rinsate into application equipment or a mix tank or 
store rinsate for later use and disposal. Drain for 10 seconds after the flow begins to 
drip. Repeat this procedure two more times. Then offer for recycling if available or 
puncture and dispose of in a sanitary landfill, or by incineration, or by other procedures 
approved by state and local authorities.

Halex GT Herbicide 
Page 28 
 
Container Handling [greater than 5 gallons] 
 
Refillable container. Refill this container with pesticide only. Do not use this container 
for any other purpose. Cleaning the container before final disposal is the responsibility 
of the person disposing of the container. Cleaning before refilling is the responsibility of 
the refiller. To clean container before final disposal, empty the remaining contents from 
this container into application equipment or mix tank. Fill the container about 10 percent 
full with water. Agitate vigorously or recirculate water with the pump for 2 minutes. 
Pour or pump rinsate into application equipment or rinsate collection system. Repeat 
this rinsing procedure two more times. Then offer for recycling if available or puncture 
and dispose of in a sanitary landfill, or by incineration, or by other procedures approved 
by state and local authorities. If the container is damaged, leaking or obsolete, contact 
Syngenta Crop Protection, LLC at 1-800-888-8372. 
 
Container Handling [greater than 5 gallons] 
 
Non-refillable container. Do not reuse or refill this container. Triple rinse container (or 
equivalent) promptly after emptying. Triple rinse as follows: Empty the remaining 
contents into application equipment or a mix tank. Fill the container ¼ full with water. 
Replace and tighten closures. Tip container on its side and roll it back and forth, 
ensuring at least one complete revolution, for 30 seconds. Stand the container on its 
end and tip it back and forth several times. Turn the container over onto its other end 
and tip it back and forth several times. Empty the rinsate into application equipment or 
a mix tank or store rinsate for later use or disposal. Repeat this procedure two more 
times. Then offer for recycling if available or puncture and dispose of in a sanitary 
landfill, or by incineration, or by other procedures approved by state and local 
authorities. 
 
For minor spills, leaks, etc., follow all precautions indicated on this label and clean up 
immediately. Take special care to avoid contamination of equipment and facilities 
during cleanup procedures and disposal of wastes. In the event of a major spill, fire, or 
other emergency, call 1-800-888-8372, day or night. 
 
CONTAINER IS NOT SAFE FOR FOOD, FEED, OR DRINKING WATER. 
 
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

Halex GT Herbicide 
Page 29 
 
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. 
 
 
AAtrex®, Agrisure™ GT, Bicep II Magnum®, Bicep Lite II Magnum®, Callisto®, 
Callisto® Xtra, Concep®, DoseLock™, Dual II Magnum®, Expert®, Halex® GT, 
Lexar®, Lexar® EZ, Lumax®, Lumax® EZ, Northstar®, Warrior®, Zemax®, the 
ALLIANCE FRAME, the SYNGENTA Logo, and the PURPOSE ICON are Trademarks 
of a Syngenta Group Company 
 
Armezon™, Clarity®, Counter®, Distinct®, and Status® are trademarks of BASF 
Corporation 
 
Impact® is a trademark of Amvac Chemical Corporation 
 
Balance® Flexx, Capreno®, Corvus® and Laudis® are trademarks of Bayer 
CropScience

Halex GT Herbicide 
Page 30 
 
 
Lorsban® is a trademark of Dow AgroSciences 
 
Roundup Ready® 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 
 
 
 
Halex GT Herbicide 1282 MAS 0123 NOTIF.OCT2024-HI – di – 10/17/2024 
000100-01282.20241025.Halex_GT_ Herbicide.NOTIF.OCT2024-HI