crop-chem-docs/corpus/epa_ppls/7969-262.md

# ARMEZON HERBICIDE

- EPA Reg No: **7969-262**
- Registrant: BASF AGRICULTURAL SOLUTIONS US, LLC
- Signal word: Caution
- Active ingredients: Topramezone (29.7%)
- Label accepted: 2024-11-18
- Source PDF: https://www3.epa.gov/pesticides/chem_search/ppls/007969-00262-20241118.pdf

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1 
November 18, 2024 
Matt Feinberg 
Product Registration Manager 
BASF CORPORATION 
26 DAVIS DRIVE 
P.O. Box 13528 
RESEARCH TRIANGLE PARK, NC 27709 
Subject: Label Amendment – Revise label and add Topramezone registration review 
Product Name: ARMEZON HERBICIDE 
EPA Registration Number: 7969-262 
Application Date: 03/2ϵ/2022; 05/0Ϯ/2024 
Case Number: 00475901; 00610710 
Dear Matt Feinberg: 
The amended label referred to above, submitted in connection with registration under the 
Federal Insecticide, Fungicide, and Rodenticide Act (FIFRA), as amended, is acceptable. This 
approval does not affect any conditions that were previously imposed on this registration. You 
continue to be subject to existing conditions on your registration and any deadlines connected 
with them. 
The Agency, in accordance with the Federal Insecticide, Fungicide and Rodenticide Act (FIFRA), 
as amended, has completed reviewing all of the information submitted with your application to 
support the Registration Review of the above referenced product in connection with the 
Topramezone Final and/or Interim Decision, and has concluded that your submission is 
acceptable. 
A stamped copy of your labeling is enclosed for your records. This labeling supersedes all 
previously accepted labeling. You must submit one copy of the final printed labeling before you 
release the product for shipment with the new labeling. In accordance with 40 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.

Page 2 of 2 
EPA Reg. No. 7969-262 
Case No. 00475901; 00610710 
 
Should you wish to add/retain a reference to the company’s website on your label, then please 
be aware that the website becomes labeling under FIFRA and is subject to review by the 
Agency. If the website is false or misleading, the product would be misbranded and unlawful to 
sell or distribute under FIFRA section 12(a)(1)(E). 40 CFR 156.10(a)(5) lists 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. 
 
Your release for shipment of the product constitutes acceptance of these conditions. If these 
conditions are not complied with, the registration will be subject to cancellation in accordance 
with FIFRA section 6. 
 
If you have any questions, please contact Hector Escobar at 202-566-1371 or at 
escobar.hector@epa.gov. 
 
Sincerely, 
 
 Kable Bo Davis 
Senior Advisor 
Office of Pesticide Programs 
Registration Division, Immediate Office 
 
Enclosure

For postemergence weed control in all types of field corn, 
popcorn, sweet corn, sugarcane, between crop applications, 
and African marigold production
Active Ingredient:
topramezone: [3-(4,5-dihydro-isoxazolyl)-2-methyl-4-(methylsulfonyl)
phenyl](5-hydroxy-1-methyl-1H-pyrazol-4-yl)methanone ................... 29.7%
Other Ingredients: .............................................. 70.3%
Total: ......................................................... 100.0%
1 gallon contains 2.8 pounds of topramezone free acid.
EPA Reg. No. 7969-262 EPA Est. No.
KEEP OUT OF REACH OF CHILDREN
CAUTION/PRECAUCION
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 inside booklet for complete First Aid, Precautionary Statements, Directions For 
Use, Conditions of Sale and Warranty, and state-specific crop and/or use site 
restrictions.
In case of an emergency endangering life or property involving this product,
call day or night 1-800-832-HELP (4357).
Net Contents:
BASF Corporation
26 Davis Drive, Research Triangle Park, NC 27709
Topramezone Group 27 Herbicide
{NOTE TO REVIEWER: Text within [brackets] indicates optional text.}
11/18/2024
7969-262

2
Precautionary Statements
Hazards to Humans and Domestic Animals
CAUTION. Causes moderate eye irritation. Harmful if 
swallowed or absorbed through the skin. Avoid contact 
with skin, eyes, or clothing. Wash thoroughly with soap 
and water after handling.
Personal Protective Equipment (PPE)
Applicators and other handlers must wear:
• Long-sleeved shirt and long pants
• Chemical-resistant gloves made of barrier laminate, 
butyl rubber ≥ 14 mils, nitrile rubber ≥ 14 mils, neoprene 
rubber ≥ 14 mils, natural rubber (includes natural rubber 
blends and laminates) ≥ 14 mils, polyethylene, polyvinyl 
chloride (PVC) ≥ 14 mils, or viton ≥ 14 mils
• Shoes plus socks
Discard clothing and other absorbent materials that have 
been drenched or heavily contaminated with this product’s 
concentrate. DO NOT reuse them. Follow manufacturer’s 
instructions for cleaning and maintaining PPE. If no such 
instructions for washables exist, use detergent and hot 
water. Keep and wash PPE separately from other laundry.
USER SAFETY RECOMMENDATIONS
Users should:
• Wash hands 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.
Engineering Controls
When handlers use closed systems, enclosed cabs, or air-
craft 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.
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. DO NOT apply this 
product through any type of irrigation system.
Product must be used in a manner which will prevent 
back-siphoning in wells, spills or improper disposal of 
excess pesticide, spray mixtures, or rinsate.
Nontarget Organism Advisory
This product is toxic to plants and may adversely impact 
the forage and habitat of nontarget organisms, including 
pollinators, in areas adjacent to the treated site. Protect the 
forage and habitat of nontarget organisms by following 
label directions intended to minimize spray drift.
Groundwater Advisory
This chemical has properties and characteristics associat-
ed with chemicals detected in groundwater. This chemical 
may leach into groundwater if used in areas where soils 
are permeable, particularly where the water table is 
shallow.
Surface Water Advisory
This product may impact surface water quality due to run-
off of rain water. This is especially true for poorly draining 
soils and soils with shallow groundwater. This product is 
classified as a high potential for reaching both surface 
water and aquatic sediment via runoff for several months 
or more after application. A level, well-maintained vegeta-
tive 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 
FIRST AID
If in eyes
• Hold eyes open and rinse slowly and gently with water for 15 to 20 minutes.
• Remove contact lenses, if present, after first 5 minutes; then continue rinsing.
• Call a poison control center or doctor for treatment advice.
If swallowed
• Call a poison control center or doctor immediately for treatment advice.
• Have a person sip a glass of water if able to swallow.
• DO NOT induce vomiting unless told to do so by a poison control center or doctor.
• DO NOT give anything to an unconscious person.
If on skin
• Take off contaminated clothing.
• Rinse skin immediately with plenty of water for 15 to 20 minutes.
• Call a poison control center or doctor for treatment advice.
HOTLINE NUMBER
Have the product container or label with you when calling a poison control center or doctor or going for treatment. 
You may also contact BASF Corporation for emergency medical treatment information: 1-800-832-HELP (4357).

3
topramezone and its transformation products 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.
Directions For Use 
It is a violation of federal law to use this product in a man-
ner inconsistent with its labeling. This label must be in the 
possession of the user at time of herbicide application.
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 applica-
tion. For any requirements specific to your state or tribe, 
consult the agency responsible for pesticide regulation.
Observe all precautions and limitations in this label and the 
labels of products used in combination with Armezon
® 
herbicide. The use of Armezon not consistent with this 
label can result in injury to crops, animals, or persons. 
Keep containers closed to avoid spills and contamination.
Unless otherwise directed in supplemental labeling, all 
applicable directions, restrictions, precautions, and 
 Conditions of Sale and Warranty are to be followed.
BASF Corporation does not recommend or authorize the 
use of this product in manufacturing, processing, or pre-
paring custom blends with other products for application in 
crops.
AGRICULTURAL USE REQUIREMENTS
Use this product only in accordance with its labeling and 
with the Worker Protection Standard, 40 CFR Part 170. 
This standard contains requirements for the protection of 
agricultural workers on farms, forests, nurseries, and 
greenhouses, and handlers of agricultural pesticides. It 
contains requirements for training, decontamination, 
notification, and emergency assistance. It also contains 
specific instructions and exceptions pertaining to the 
statements on this label about personal protective 
equipment (PPE) and restricted-entry interval. The 
requirements in this box only apply to uses of this prod-
uct 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 per-
mitted under the Worker Protection Standard and that 
involves contact with anything that has been treated, 
such as plants, soil, or water, is:
• Coveralls
• Chemical-resistant gloves such as barrier laminate, 
butyl rubber ≥ 14 mils, nitrile rubber ≥ 14 mils, 
 neoprene rubber ≥ 14 mils, natural rubber (includes 
natural rubber blends and laminates) ≥ 14 mils, 
 polyethylene, polyvinyl chloride (PVC) ≥ 14 mils, or 
viton ≥ 14 mils
• Shoes plus socks
STORAGE AND DISPOSAL
DO NOT contaminate water, food or feed by storage or 
disposal.
Pesticide Storage
Store product in original container only. Store product in 
a cool, dry place. DO NOT store this product under wet 
conditions. If this product has been stored where freez-
ing temperatures have occurred, agitate or mix contents 
of container well before use. Avoid cross-contamination 
with other pesticides.
Pesticide Disposal
Wastes resulting from the use of this product may be 
disposed of on-site or at an approved waste disposal 
facility. Improper disposal of excess pesticide, spray mix, 
or rinsate is a violation of federal law. If these wastes 
cannot be disposed of according to label instructions, 
contact the state agency responsible for pesticide regu-
lation or the Hazardous Waste representative at the 
nearest EPA Regional Office for guidance.
Container Handling
Nonrefillable [Plastic] Container. DO NOT reuse or 
refill this container. Triple rinse or pressure rinse con-
tainer (or equivalent) promptly after emptying; then offer 
for recycling, if available, or reconditioning, if appropriate, 
or puncture and dispose of in a sanitary landfill, or by 
incineration, or by other procedures approved by state 
and local authorities.
Triple rinse [plastic] containers small enough to 
shake (capacity ≤ 5 gallons) 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.
Triple rinse [plastic] containers too large to shake 
 (capacity > 5 gallons) as follows: Empty the remain-
ing contents into application equipment or a mix tank. 
Fill the container 1/4 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.
(continued)

4
STORAGE AND DISPOSAL (continued)
Container Handling (continued)
Pressure rinse as follows: Empty the remaining con-
tents into application equipment or mix tank and 
continue to drain for 10 seconds after the flow begins to 
drip. Hold container upside down over application 
equipment or mix tank, or collect rinsate for later use or 
disposal. Insert pressure rinsing nozzle in the side of the 
container and rinse at about 40 PSI for at least 30 sec-
onds. Drain for 10 seconds after the flow begins to drip.
Refillable Container. Refill this container with pesticide 
only. DO NOT reuse this container for any other pur-
pose. Triple rinsing the container before final disposal is 
the responsibility of the person disposing of the contain-
er. Cleaning before refilling is the responsibility of the 
refiller.
Triple rinse as follows: To clean the container before 
final disposal, empty the remaining contents from this 
container into application equipment or mix tank. Fill the 
container about 10% full with water. Agitate vigorously or 
recirculate water with the pump for 2 minutes. Pour or 
pump rinsate into application equipment or rinsate col-
lection system. Repeat this rinsing procedure two more 
times.
When this container is empty, replace the cap and seal 
all openings that have been opened during use; return 
the container to the point of purchase or to a designated 
location. This container must only be refilled with a pesti-
cide product. Prior to refilling, inspect carefully for 
damage such as cracks, punctures, abrasions, worn-out 
threads and closure devices. Check for leaks after refill-
ing and before transport. DO NOT transport if this 
container is damaged or leaking. If the container is dam-
aged, or leaking, or obsolete and not returned to the 
point of purchase or to a designated location, triple rinse 
emptied container and offer for recycling, if available, or 
dispose of container in compliance with state and local 
regulations.
Spills
In case of large-scale spill of this product, call:
• CHEMTREC 1-800-424-9300
• BASF Corporation 1-800-832-HELP (4357)
Steps to take if this material is released into the 
environment or spilled:
• Wear Personal Protective Equipment (PPE) and 
avoid exposure when managing a spill. (See 
 Precautionary Statements section of this label for 
required PPE.)
• Dike and contain the spill with inert material (sand, earth, 
etc.) and transfer liquid and solid diking material to sepa-
rate containers for disposal.
• Remove contaminated clothing, and wash affected skin 
areas with soap and water. Wash clothing before reuse.
• Keep spill out of all sewers and open bodies of water.
Product Information
Armezon® herbicide is a suspension concentrate (SC) 
herbicide providing systemic postemergence control or 
growth suppression of emerged broadleaf and grass 
weeds in field corn (grown for grain, silage, or seed), pop-
corn (grown for ear, kernel, or seed), sweet corn (grown for 
ear, kernel, or seed), sugarcane, between crop applica-
tions, and African marigold production. This product may 
be used on conventional and herbicide-resistant/tolerant 
corn hybrids. BASF has not tested all inbred lines for toler-
ance to Armezon. Before using Armezon, refer to seed 
company instructions for use on inbred lines of field corn, 
popcorn, and sweet corn.
When applied postemergence as directed, Armezon will 
control or suppress the broadleaf weeds listed in Table 1 
and the grass weeds listed in Table 2.
To increase weed control spectrum for use in corn, tank 
mix Armezon with 0.25 lb to 1.5 lbs active ingredient of 
atrazine herbicide per acre. Use the lower rates of atrazine 
for added burndown of emerged weeds and the higher 
labeled rates for added weed residual control.
Armezon applications must include spray additives. See 
Additives and Mixing Order for details.

5
Table 1. Broadleaf Weeds Controlled Postemergence Broadcast
(including ALS-resistant1, glyphosate-resistant, PPO-resistant, auxin agonist-resistant, and triazine-resistant biotypes)
Common Name Scientific Name
Armezon® herbicide Application Rate
0.5 fl oz/A 0.75 to 2.0 fl ozs/A
Maximum Weed Size 2 
(inches)
Amaranth, Palmer Amaranthus palmeri 46
Amaranth, Powell Amaranthus powellii 46
Burcucumber Sicyos angulatus 46
Canola, volunteer Brassica spp. 4 6
Carpetweed Mollugo verticillata 46
Chickweed, common Stellaria media 24
Cocklebur, common Xanthium strumarium 58
Dandelion Taraxacum officinale –6 *
Galinsoga, hairy Galinsoga ciliata 46
Henbit Lamium amplexicaule 34
Horseweed (Marestail) Conyza canadensis 46
Jimsonweed Datura stramonium 46
Kochia Kochia scoparia 46
Lambsquarters, common Chenopodium album 46
Lettuce, prickly Latuca serriola 24
Mallow, common
Mallow, Venice
Malva neglecta
Hibiscus trionum
2
2*
3
3*
Morningglory Ipomoea spp. 4* 6*
Mustard Brassica spp. 4 6
Nightshade, black
Nightshade, Eastern black
Nightshade, hairy
Solanum nigrum
Solanum ptycanthum
Solanum sarrachoides
4
4
4
6
6
6
Pigweed, prostrate
Pigweed, redroot
Pigweed, smooth
Pigweed, tumble
Amaranthus blitoides
Amaranthus retroflexus
Amaranthus hybridus
Amaranthus album
4
4
4
2
6
6
6
4
Pusley, Florida Richardia scabra 23
Ragweed, common
Ragweed, giant
Ambrosia artemisiifolia
Ambrosia trifida
4
5
6
8
Shepherd’s-purse Capsella bursa-pastoris 24
Sida, prickly Sida spinosa 23
Smartweed, ladysthumb
Smartweed, Pennsylvania
Polygonum persicaria
Polygonum pensylvanicum
2
2
3
3
Sunflower, volunteer
Sunflower, wild (common)
Helianthus spp.
Helianthus annuus
5
5
8
8
Thistle, Canada
Thistle, Russian
Cirsium arvense
Salsola iberica
4*
2
6*
4
Velvetleaf Abutilon theophrasti 48
Waterhemp, common
Waterhemp, tall
Amaranthus rudis
Amaranthus tuberculatus
4
4
6
6
1 ALS (acetolactate synthase)-resistant weeds include those weeds re sistant to imidazolinone, sulfonamide, and/or sulfonylurea he rbicides.
2 For best performance, spray before weeds exceed the maximum stem height or vine length listed in this table.
* Partial control or suppression

6
Table 2. Grass Weeds Controlled or Suppressed 2 Postemergence Broadcast
(including ALS-resistant1, glyphosate-resistant, ACCase-resistant, and triazine-resistant biotypes)
Common Name Scientific Name Maximum Weed Leaf 
Stage3
Maximum Weed Size 3
(inches)
Barnyardgrass Echinochloa crus-galli 44
Crabgrass, large
Crabgrass, smooth
Digitaria sanguinalis
Digitaria ischaemum
4
4
3
3
Crowfootgrass Dactyloctenium aegyptium 43
Cupgrass, woolly Eriochloa villosa 3* 3*
Foxtail, giant
Foxtail, green
Foxtail, yellow
Setaria faberi
Setaria viridis
Setaria lutescens
4
3*
3*
4
3*
3*
Goosegrass Eleusine indica 43
Johnsongrass, seedling Sorghum halepense 3* 4*
Millet, wild proso Panicum miliaceum 33
Panicum, fall
Panicum, Texas
Panicum dichotomiflorum
Urochloa texana
3*
3*
3*
3*
Sandbur, field Cenchrus spp. 3* 3*
Shattercane Sorghum bicolor 3* 4*
Signalgrass, broadleaf Brachiaria platyphylla 3* 3*
1 ALS-resistant weeds include those weeds resistant to imidazolinone and/or sulfonylurea herbicides.
2 Growth suppression at 0.5 fl oz/A
3 For best performance, use a rate of 2.0 fl ozs/A and spray before grass exceeds the maximum leaf stage and/or height listed in t his table.
* Growth suppression at 0.75 fl oz/A; control at 1.0 fl oz/A
Mode of Action
Armezon® herbicide is absorbed by leaves, roots, and 
shoots and translocated to the growing points of sensitive 
weeds to control emerged weeds. Armezon controls 
weeds by inhibiting carotenoid biosynthesis (HPPD- 
inhibitor Group 27). Temperatures and moisture conditions 
for active plant growth are important for optimum 
 Armezon activity. Armezon application to weeds during 
periods of stress conditions, such as cold temperatures 
and/or drought, may result in reduced performance.
Herbicide Resistance Management
For resistance management, Armezon contains a 
Group 27 herbicide. Any weed population may contain 
plants naturally resistant to Group 27 herbicides. The 
resistant individuals may dominate the weed population if 
these herbicides are used repeatedly in the same fields. 
Appropriate resistant-management strategies should be 
followed.
To delay herbicide resistance consider:
• Avoiding the consecutive use of herbicides that have a 
similar target-site-of-action on the same weed species.
• Using tank mixes or premixes with herbicides from differ-
ent target-site-of-action groups as long as the involved 
products are all registered for the same use, have differ-
ent sites of action, and are both effective at the tank mix 
or prepack rate on the weed(s) of concern.
• Basing herbicide use on a comprehensive IPM (Integrat-
ed Pest Management) program including cultural and 
mechanical methods.
• Monitoring treated weed populations for loss of field effi-
cacy, and control of escapes with effective alternative 
herbicides or mechanical methods.
• Identify weeds present in the field through scouting and 
field history and understand their biology. The weed- 
control program needs to consider all of the weeds 
present.
• Scout fields prior to application to identify the weed spe-
cies present and their growth stage to determine if the 
intended application will be effective.
• Scout fields after application to verify the treatment was 
effective.
• Suspected herbicide-resistance weeds may be identified 
by these indicators:
1. Failure to control a weed species normally controlled 
by the herbicide at the dose applied, especially if con-
trol is achieved on adjacent weeds;
2. A spreading patch of non-controlled plants of a partic-
ular weed species; and
3. Surviving plants mixed with controlled individuals of 
the same species.
• If resistance is suspected, treat weed escapes with an 
herbicide with a different MOA and/or use nonchemical 
methods to remove escapes, as practical, with the goal 
of preventing further seed production.
• Report any incidence of non-performance of this product 
against a particular weed species to your BASF 
representative.
• Contacting your local extension specialist, certified crop 
advisors, and/or manufacturer for herbicide resistance 
management and/or integrated weed management 
directions for specific crops and resistant weed biotypes.

7
Crop Tolerance
Apply Armezon® herbicide during favorable growing 
conditions for optimum crop tolerance and weed control. 
Crops under environmental stress are more likely to show 
injury from any herbicide application. Rarely, plants under 
these conditions treated with Armezon may show tran-
sient bleaching of the portion of the leaves intercepting the 
spray application. These symptoms are temporary and 
occur infrequently; crop growth is not affected.
Cultivation
Avoid disturbing (e.g. cultivation) treated areas for at least 
7 days following an application of Armezon to allow best 
herbicide uptake, translocation, and weed control.
Insecticide Information
Armezon may be used sequentially or in combination with 
soil or foliar applied insecticides registered for use in corn.
Application Instructions
Armezon is effective for post emergence control of annual 
weeds in conservation or conventional tillage production 
systems.
DO NOT apply Armezon within 30 feet of the downwind 
edge of native plant communities.
The applicator is responsible for any loss or damage that 
results from spraying Armezon in a manner other than 
directed in this label. In addition, applicator must follow all 
applicable state and local regulations and ordinances for 
spraying.
Application Timing
• Apply Armezon as a postemergence treatment when 
weeds are actively growing.
• For optimal weed control, apply Armezon before weeds 
exceed labeled height.
• Apply Armezon a minimum of one hour before rainfall or 
overhead irrigation.
Ground Application Methods and Equipment
Uniformly apply with properly calibrated ground equipment 
in 10 or more gallons of water per acre. Use higher water 
volumes treating larger weeds and/or high-density weed 
infestation. Weeds must be thoroughly covered with spray. 
Dense leaf canopies shelter small weeds and can prevent 
adequate spray coverage. Armezon applications should 
be made with drop nozzles if the crop canopy prevents 
adequate weed coverage.
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 great-
er application height is necessary for pilot safety.
• Applicators are required to select a nozzle and pres-
sure that deliver a medium or coarser droplet size 
(ASABE S641).
• If the wind speed is 10 mph or less, applicators must 
use 1/2 swath displacement upwind at the downwind 
edge of the field. When the wind speed is between 
11 to 15 mph, applicators must use 3/4 swath 
displacement.
• 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.
Ground Boom Applications:
• User must only apply with the release height recom-
mended by the manufacturer, but no more than 3 ft 
above the ground or crop canopy.
• Applicators are required to select a nozzle and pres-
sure that deliver a medium or coarser droplet size 
(ASABE S572).
• DO NOT apply when wind speeds exceed 15 mph at 
the application site.
• DO NOT apply during temperature inversions.
Spray Drift Advisories
The applicator is responsible for avoiding off-site spray 
drift. Be aware of nearby nontarget sites and environmen-
tal 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 recommend-
ed 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.

8
Controlling Droplet Size - Aircraft
• Adjust Nozzles - Follow nozzle manufacturer’s recom-
mendations 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 Inversion
Drift potential is high during a temperature inversion. Tem-
perature 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.
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.
Additives
Postemergence applications of Armezon® herbicide 
require the addition of an adjuvant and nitrogen fertilizer for 
optimum weed control.
Agriculturally approved drift-reducing additives may be 
used in applications with Armezon.
When an adjuvant is to be used with this product, BASF 
recommends the use of Chemical Producers and Distribu-
tors Association certified adjuvant.
Adjuvants
Unless specific tank mix directions are given in Crop- 
specific Information , always use a methylated seed oil 
(MSO) or a petroleum-based or vegetable seed-based oil 
concentrate (COC) with Armezon. For best performance 
across a wide range of environmental conditions, including 
when weeds are under moisture and/or temperature 
stress, use an MSO adjuvant. Apply these oilbased adju-
vant concentrates at 1.0 to 1.5 gallons per 100 gallons of 
water (1.0% to 1.5% volume/volume [v/v]). Use the higher 
rate when applying during periods of hot, dry weather.
AND
Nitrogen Fertilizer
Recommended nitrogen-based fertilizers include urea 
ammonium nitrate (UAN; 28% to 34%) or ammonium 
 phosphate (10-34-0) at 1.25 to 2.5 gallons per 100 gallons 
of water (1.25% to 2.5% v/v). Instead of a liquid fertilizer, 
spray grade ammonium sulfate (AMS) at a minimum rate of 
8.5 to 17 pounds per 100 gallons of water may be used. 
Use the higher rate when applying during periods of hot, 
dry weather.
Mixing Instructions
For product containers 5 gallons or less, shake well before 
use. For product containers more than 5 gallons, recircu-
late before use.
DO NOT use liquid fertilizer as a carrier for postemergence 
applications. Use only water as a carrier.
1. Water - Fill the spray tank 1/2 to 3/4 full with clean water 
and start agitation.
2. Armezon - Add required amount to spray tank while 
agitating.
3. After the Armezon has visibly dispersed, add spray 
additives and fill the remainder of the tank with water.
Maintain agitation throughout mixing and application until 
spraying is completed. Limit the amount of spray mixture 
prepared to that needed for immediate use.
Tank Mixing Order
When tank mixing Armezon with recommended herbi-
cides, add the other herbicides and other components in 
the following order. Maintain agitation throughout mixing 
and application until spraying is completed. If the spray 
mixture is allowed to settle for any period of time, thorough 
agitation is essential to resuspend the mixture before 
spraying is resumed. Continue agitation while spraying.
1. Water - Fill tank 1/2 to 3/4 full with clean water and start 
agitation.
2. Inductor - If an inductor is used, rinse it thoroughly 
after each component has been added.
3. Products in PVA bags - Place any product contained 
in water-soluble PVA bags into the mixing tank. Wait 
until all water-soluble PVA bags have fully dissolved and 
the product is evenly mixed in the spray tank before 
continuing.
4. Water-soluble additives (including dry and liquid fer-
tilizers such as AMS or UAN)
5. Water-dispersible products (such as dry flowables, 
wettable powders, suspension concentrates, or 
suspo-emulsions)
6. Water-soluble products
7. Emulsifiable concentrates (including MSO adjuvants)
8. Remaining quantity of water

9
Cleaning Spray Equipment
To avoid injury to sensitive crops, drain and clean applica-
tion equipment thoroughly using a strong detergent or 
commercial sprayer cleaner according to the manufactur-
er’s directions. Triple rinse equipment before and after 
applying this product.
Tank Mixing Information
Armezon® herbicide may be applied sequentially or tank 
mixed with other herbicides as part of a complete weed 
control program. Tank mix recommendations are for use 
only in states where the sequential or tank mix product 
and application site are registered. Refer to Crop-specific 
Information for more details and for specific tank mix 
restrictions. Read and follow the applicable restrictions and 
precautions and Directions For Use on all products 
included in any tank mix. The most restrictive labeling 
applies to tank mixes.
Rotational Crop Restrictions
The following rotational crops may be planted after apply-
ing Armezon at the specified rate. Planting earlier than the 
specified interval may result in crop injury. Avoid overappli-
cation by minimizing overlap of spray swaths and by 
switching off spray boom when turning (end rows).
For rotational crops following the use of sequential applica-
tions of Armezon, the rotational interval begins after the 
last Armezon application.
Rotational Crop
Rotational Interval 
(months)
Armezon Application Rate 
(fl oz/A)
0.5 0.75 1.0 to 
2.0***
Corn (all) 000
Sugarcane 000
AxantTM Flex 
[cotton]
000
Cereal grains 333
Grass grown for 
seed
333
Rice 333
Alfalfa 999
Cotton 
(non Axant Flex)
[9] [12****] [9] [12****] [9] [12****]
Grain sorghum [9] [12****] [9] [12****] [9] [12****]
Peanut [9] [12****] [9] [12****] [9] [12****]
Potato 999
Soybean [9] [12****] [9] [12****] [9] [12****]
Sunflower [9] [12****] [9] [12****] [9] [12****]
(continued)
Rotational Crop 
(continued)
Rotational Interval 
(months)
Armezon Application Rate 
(fl oz/A)
0.5 0.75 1.0 to 
2.0***
Canola 99 1 8
Lima bean, 
succulent
99 1 8
Dry beans1 99 * 1 8 * *
Pea 99 1 8 * *
Snap/Garden 
bean
99 * , † 18
Sugar beet 9* 9* 18**
All Other Crops 18 18 18
 1 For cranberry beans in Idaho, Utah, and the area east of the Cascade 
Mountains in Oregon and Washington, follow the guidelines for snap/
garden bean.
 *
 18 months for the following states: Colorado, Michigan, Minnesota, 
Montana, Nebraska (west of Highway 83), North Dakota, 
South  Dakota, Wisconsin, and Wyoming
 **
 9 months for Idaho, Oregon, and Washington
 † 18 months for Idaho, Utah, and the area east of the Cascade 
 Mountains in Oregon and Washington.
***
 Rotational crop injury may occur (other than for corn, sugarcane, or 
Axant Flex [cotton]) when more than 1.0 fl oz/A Armezon (0.022 lb 
topramezone per acre) per year is applied to soils with pH greater 
than 7 and/or under conditions with below normal seasonal 
precipitation.
[****
 12 months for areas with cumulative rainfall <25 inches]
Crop-specific Information
Corn 
(field corn, popcorn, seed corn, sweet corn)
Apply Armezon postemergence on all corn types includ-
ing conventional, Roundup Ready ®, and LibertyLink ® 
hybrids. In addition, Armezon may be applied on inbred 
lines used in field corn, popcorn and sweet corn seed pro-
duction. Refer to seed company instructions before use on 
inbred lines.
Armezon may be used in tank mixes or sequential appli-
cations with other herbicides registered for use in corn. If 
Armezon is tank mixed with other herbicides, follow label 
restrictions for the most restrictive tank mix products. It is 
the pesticide user’s responsibility to ensure that all prod-
ucts 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 pre-
cautionary statements of each product in the tank mixture.

10
Corn Restrictions
• DO NOT apply more than 2.0 fl ozs/A Armezon® 
 herbicide (0.0438 lb topramezone per acre) per year in 
corn.
• In the event of a crop loss because of weather, any corn 
type can be replanted following an application of 
 Armezon. If Armezon was tank mixed with other herbi-
cides, the label restrictions for these herbicides must 
also be followed.
• DO NOT apply Armezon within 45 days of corn harvest 
(fresh market sweet corn, silage, fodder, or grain) or after 
the V8 stage of corn growth, whichever comes first.
• DO NOT graze or feed treated corn forage, silage, fod-
der, or grain for at least 45 days after an application of 
Armezon.
Tank Mixes
Armezon may be tank mixed or applied sequentially with 
one or more of, but not limited to, the following herbicide 
products:
• Outlook
® herbicide [EPA Reg. No. 7969-156; 
Dimethenamid-P]
• Prowl® H2O herbicide [EPA Reg. No. 241-418; 
Pendimethalin]
• Status® herbicide [EPA Reg. No. 7969-242; 
 Diflufenzopyr-sodium and Dicamba, sodium salt]
• SurtainTM herbicide [EPA Reg. No. 7969-501; 
 Pyroxasulfone and Saflufenacil]
• Zidua® SC herbicide [EPA Reg. No. 7969-374; 
Pyroxasulfone]
• atrazine
• glyphosate (e.g. Roundup® herbicide)
Armezon tank mixes or sequential applications with prod-
ucts containing mesotrione are not recommended.
Sequential Herbicide Combinations 
and Uses
In addition to control of many emerged broadleaf weeds, 
Armezon controls or suppresses growth of several 
emerged grass weed species. To target a broader spec-
trum of grasses, use Armezon as a sequential 
postemergence treatment following a preemergence grass 
herbicide such as Outlook, Prowl H2O, Surtain, or 
Zidua SC. Armezon may also be used in sequential pro-
grams with registered burndown herbicides.
Armezon may be applied in sequence with products con-
taining isoxaflutole (e.g. Corvus
® herbicide) if the 
isoxaflutole rate used is less than or equal to 0.0625 lb 
active ingredient per acre (equal to 4 fl ozs/A of Corvus).
Between Crop Application (Fallow)
Armezon may be used as a foliar application to control 
emerged broadleaf and grass weeds at any time of the 
year during the fallow period after crop harvest and before 
the following crop is planted. For rotational crops following 
the use of a between crop application of Armezon, the 
rotational interval begins after the last Armezon applica-
tion; see Rotational Crop Restrictions section for 
intervals.
Application Rate and Timing
Apply Armezon as a broadcast spray at 0.5 fl oz/A to 
2.0 fl ozs/A. Best product performance is obtained when 
weeds are small and actively growing. Thorough coverage 
of existing weeds is essential, and higher spray volume 
may be needed for best performance. Sequential applica-
tions may be made with a minimum of 14 days between 
applications. DO NOT apply more than the maximum 
cumulative amount of 2.0 fl ozs/A (0.0438 lb topramezone 
per acre) of Armezon per year.
Sugarcane
Armezon can be applied to plant cane or sugarcane 
grown from stubble (ratoon). Armezon may be used in 
tank mixes or sequential applications with other herbicides 
registered for use in sugarcane such as atrazine, 
 metribuzin, or Prowl H2O. If Armezon is tank mixed with 
other herbicides, follow label restrictions for the most 
restrictive tank mix product. Application of Armezon may 
cause transient discoloration, chlorosis, or yellowing of 
sugarcane.
Armezon may be applied between growing seasons as 
either an early preplant in plant cane or post harvest in 
ratoon cane prior to cane initiating regrowth. Apply 0.5 to 
2.0 fl ozs/A of Armezon with a minimum of 14 days 
between sequential applications. DO NOT apply more 
than 4.0 fl ozs/A (0.0875 lb topramezone per acre) of 
Armezon per year.
Special Weeds Controlled/Suppressed
In addition to the weeds controlled early postemergence 
as described in Table 1 and Table 2, Armezon controls 
or suppresses the following weeds.
• Common Bermudagrass (Cynodon dactylon) - Apply 
early in the season at onset of Bermudagrass greenup or 
emergence of new leaves. Apply 1.0 to 2.0 fl ozs/A of 
Armezon per application. Up to four sequential applica-
tions at 2 to 3 week intervals may be necessary for best 
control. DO NOT apply more than 4.0 fl ozs/A of 
 Armezon (0.0875 lb topramezone per acre) per year. 
Apply using MSO or COC spray adjuvant plus nitrogen 
fertilizer such as AMS or UAN. See Adjuvants and 
Nitrogen Fertilizer sections for details.
• Fall panicum (Panicum dichotomiflorum) - For rescue 
suppression of large fall panicum more than 12-inches 
tall or other annual grasses listed in Table 1 and 
Table 2, apply 2.0 fl ozs/A Armezon and use a mini-
mum of 20 gallons per acre spray volume for proper 
spray coverage. Apply using MSO or COC spray adju-
vant plus nitrogen fertilizer such as AMS or UAN. See 
Adjuvants and Nitrogen Fertilizer sections for details.

11
Sugarcane Restrictions
• DO NOT apply more than 2.0 fl ozs/A of Armezon® 
 herbicide (0.0438 lb topramezone/A) per application in 
sugarcane.
• DO NOT apply more than 4.0 fl ozs/A of Armezon 
(0.0875 lb topramezone/A) per year in sugarcane.
• DO NOT exceed a seasonal total of 2.0 fl ozs/A 
(0.0438 lb topramezone/acre) of Armezon during the 
final year of sugarcane production, prior to rotation to 
another crop.
• DO NOT apply Armezon within 100 days of sugarcane 
harvest.
• DO NOT graze or feed treated sugarcane for at least 
100 days following an application of Armezon.
African Marigold
Armezon is only registered for use in African marigold 
grown for the purpose of lutein and zeaxanthin extraction.
Use Method, Rate, and Timing
Apply Armezon in a single application or sequential appli-
cations after complete crop recovery with an interval of 
14 days or more.
Apply 0.5 to 1.0 fluid ounce of Armezon per acre as a 
ground broadcast spray. Best product performance is 
obtained when weeds are small and actively growing. 
Thorough coverage of existing weeds is essential, and 
higher spray volume may be needed for best performance.
Armezon applications must include spray additives. The 
specific additive (adjuvant plus nitrogen fertilizer ) 
requirements for application in African marigold are 
as follows:
• Crop oil concentrate (COC) at 1.5 gallons per 100 gallons 
of water (1.5% volume/volume), plus
• Spray grade ammonium sulfate (AMS) at 8.5 pounds per 
100 gallons of water or a liquid nitrogen fertilizer such as 
urea ammonium nitrate (UAN, 28% to 34%) or ammoni-
um phosphate (10-34-0) at 1.25 to 2.5 gallons per 
100 gallons of water (1.25% to 2.5% v/v).
• DO NOT use methylated seed oil (MSO) as a substitute 
for COC or severe crop injury may occur.
Postemergence. Apply Armezon over-the-top of African 
marigold when target weeds are actively growing. African 
marigold plants must have at least 2 to 4 full leaves with a 
minimum height of 3 to 5 inches, before an Armezon 
application can be made.
Postemergence-directed. Apply Armezon as a 
postemergence- directed spray beneath the canopy of 
established plants and between rows for postemergence 
weed control.
African Marigold Restrictions
• DO NOT apply more than 1.0 fl oz/A of Armezon 
(0.022 lb topramezone/A) per application in African 
marigold.
• DO NOT apply more than 2.0 fl ozs/A Armezon 
(0.0438 lb topramezone per acre) per year in African 
marigold.
• DO NOT graze livestock in treated fields or feed treated 
plant materials to animals.
• DO NOT apply by air.
• Avoid overlapping spray patterns because crop injury 
can occur.

12
© 2024 BASF Corporation
All rights reserved.
007969-00262.20240430c.NVA 2024-04-0216-0081
Supersedes: NVA 2022-04-0216-0159
Supplemental: NVA 2017-04-216-0214
BASF Corporation
26 Davis Drive
Research Triangle Park, NC 27709
Armezon, Outlook, Prowl, Status, and Zidua are 
registered trademarks of BASF.
Axant and Surtain are trademarks of BASF.
Corvus and LibertyLink are registered trademarks of 
Bayer.
Roundup and Roundup Ready are registered 
trademarks of Monsanto Technology LLC.
[U.S. Patent No. 8,017,556]
Conditions of Sale and Warranty
The Directions For Use of this product reflect the 
 opinion of experts based on field use and tests. The 
 directions are believed to be reliable and must be 
followed carefully. However, 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 
weather conditions, presence of other materials, or 
use of the product in a manner inconsistent with its 
labeling, all of which are beyond the control of BASF 
CORPORATION (“BASF”) or the Seller. To the extent 
consistent with applicable law, all such risks shall be 
assumed by the Buyer.
BASF warrants that this product conforms to the 
chemical description on the label and is reasonably fit 
for the purposes referred to in the Directions For Use , 
subject to the inherent risks, referred to above.
TO THE EXTENT CONSISTENT WITH APPLICABLE 
LAW, BASF MAKES NO OTHER EXPRESS 
OR IMPLIED WARRANTY OF FITNESS OR 
 MERCHANTABILITY OR ANY OTHER EXPRESS OR 
IMPLIED WARRANTY.
TO THE EXTENT CONSISTENT WITH APPLICABLE 
LAW, BUYER’S EXCLUSIVE REMEDY AND BASF’S 
EXCLUSIVE LIABILITY, WHETHER IN CONTRACT, 
TORT, NEGLIGENCE, STRICT LIABILITY, OR 
 OTHERWISE, SHALL BE LIMITED TO REPAYMENT 
OF THE PURCHASE PRICE OF THE PRODUCT.
TO THE EXTENT CONSISTENT WITH APPLICABLE 
LAW, BASF AND THE SELLER DISCLAIM ANY 
 LIABILITY FOR CONSEQUENTIAL, EXEMPLARY, 
SPECIAL OR INDIRECT DAMAGES RESULTING 
FROM THE USE OR HANDLING OF THIS 
PRODUCT.
BASF and the Seller offer this product, and the Buyer 
and User accept it, subject to the foregoing Conditions 
of Sale and Warranty which may be varied only 
by agreement in writing signed by a duly authorized 
representative of BASF. 
1108