crop-chem-docs/corpus/bayer/rimfire-max.md

# Rimfire Max Herbicide

- **Product class:** herbicide
- **EPA Reg No:** 264-1099
- **Active ingredients:** Propoxycarbazone-sodium, Mesosulfuron-Methyl
- **Source:** https://www.cropscience.bayer.us/crop-protection/herbicide/rimfire-max-herbicide
- **Label PDF:** https://cs-assets.bayer.com/is/content/bayer/Rimfire_Max1g_Herbicide_Labelpdf

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US79884087D (120227Dv2) RIMFIRE MAX 90 oz. ETL  02/05/19
Net Contents:
5 lbs. 10 ozs. (90 ozs.)
MAX HERBICIDE
For post-emergence control of certain grasses
and broadleaf weeds in winter and spring wheat
(including durum).
ACTIVE INGREDIENTS: Propoxycarbazone-sodium
 (CAS No. 181274-15-7) . . . . . . . . . . . . . . . . . . . . . . . . . . . .  4.76%
Mesosulfuron-Methyl (CAS No. 208465-21-8) . . . . . . . . . . . 1.91%
INERT INGREDIENTS:  . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  93.33%
Contains petroleum distillates.        TOTAL:  100.00%
This product is a water dispersible granule containing
4.76% Propoxycarbazone-sodium and 1.91%
Mesosulfuron-methyl, by weight
EPA Reg. No. 264-1099                     EPA Est. No. 000264-DEU-001
STOP - Read the label before use
KEEP OUT OF REACH OF CHILDREN
WARNING  AVISO
Si usted no entiende la etiqueta, busque a alguien para que se la
explique a usted en detalle. (If you do not understand the label, find
someone to explain it to you in detail.)
FOR ADDITIONAL PRECAUTIONARY STATEMENTS:
See Inside Booklet.
For MEDICAL And TRANSPORTATION Emergencies ONLY
Call 24 Hours A Day 1-800-334-7577
For PRODUCT USE Information, Call 1-866-99BAYER
(1-866-992-2937)
US79884087D             120227Dv2   02/19
Produced for:
Bayer CropScience LP
800 N. Lindbergh Blvd.
St. Louis, MO 63167
RIMFIRE is a registered trademark of Bayer.
©2019 Bayer CropScience
Product of Germany

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FIRST AID
IF IN EYES: • Hold eye open and rinse slowly and gently with water for 15-20 minutes.
• Remove contact lenses, if present, after the first 5 minutes, then continue rinsing.
• Call a poison control center or doctor for treatment advice.
IF ON SKIN OR
CLOTHING:
• Take off contaminated clothing.
• Rinse skin immediately with plenty of water for 15-20 minutes.
• Call a poison control center or doctor for treatment advice.
IF INHALED: • Move person to fresh air.
• If person is not breathing, call 911 or an ambulance, then give artificial respiration, preferably by
  mouth-to-mouth, if possible.
• Call a poison control center or doctor for further treatment advice.
IF SWALLOWED: • Immediately call a poison control center or doctor for treatment advice.
• Do not induce vomiting unless told to do so by a poison control center or doctor.
• Do not give any liquid to the person.
• Do not give anything by mouth to an unconscious person.
For MEDICAL Emergencies Call 24 Hours A Day 1-800-334-7577.
Have the product container or label with you when calling a poison control center or doctor or going for treatment.
NOTE TO PHYSICIAN: May pose an aspiration pneumonia hazard. Contains petroleum distillate.
PRECAUTIONARY STATEMENTSWARNING
HAZARD TO HUMANS AND DOMESTIC ANIMALS
Causes substantial but temporary eye injury. Harmful if absorbed through skin. Harmful if inhaled. Harmful if swallowed. Avoid
contact with skin, eyes, or clothing. Do not get in eyes or on clothing. Avoid breathing dust. Wear protective eyewear (goggles,
face shield, or safety glasses). Wear long-sleeved shirt and long pants, socks, shoes, and chemical-resistant gloves (such as
Barrier Laminate, Butyl Rubber, Nitrile Rubber, or Viton).
PERSONAL PROTECTIVE EQUIPMENT (PPE)
Some materials that are chemical-resistant to this product are listed below. If you want more options, follow the instructions
for category A on an EPA chemical resistance category selection chart.
Applicators and other handlers must wear: Long-sleeved shirt and long pants, socks, shoes, chemical resistant gloves such
as barrier laminate, butyl rubber > 14 mils, nitrile rubber > 14 mils, or neoprene rubber > 14 mils, and protective eyewear
(safety glasses).  Follow manufacturer’s instructions for cleaning/maintaining PPE. If no such instructions for washables exist,
use detergent and hot water. Keep and wash PPE separately from other laundry.
ENGINEERING CONTROL STATEMENT
When handlers use closed systems, enclosed cabs or aircraft 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.

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USER SAFETY RECOMMENDATIONS
User should:
• Wash thoroughly with soap and water after handling and before eating, drinking, chewing gum, or using tobacco.
Remove and wash contaminated clothing before reuse.
• Remove clothing 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
This pesticide is toxic to fish and aquatic invertebrates. 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 any body of water and do not
apply when/where conditions could favor runoff. Do not contaminate water by cleaning of equipment or disposal of
equipment washwaters or rinsate. Do not allow sprays to drift onto desirable plants. Drift or runoff may adversely affect
non-target plants.
DIRECTIONS FOR USE
It is a violation of Federal law to use this product in a manner inconsistent with its labeling.
Do not use this product until you have read the entire label.
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 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 12 hours.
PPE required for early entry to treated areas that is permitted under the Worker Protection Standard and that involves
contact with anything that has been treated such as plants, soil or water, is coveralls, socks, shoes, chemical resistant
gloves such as barrier laminate, butyl rubber > 14 mils, nitrile rubber > 14 mils, or neoprene rubber > 14 mils, and
protective eye wear.
STORAGE AND DISPOSAL
Do not contaminate water, food, or feed by storage and disposal.
PESTICIDE STORAGE
Store in a cool, dry place.
PESTICIDE DISPOSAL
Wastes resulting from the use of this product may be disposed of on site or at an approved waste disposal facility.
(continued)

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CONTAINER HANDLING
Non-refillable container. Do not reuse or refill this container. Offer for recycling, if available. Offer for reconditioning, if
appropriate.  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 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. Puncture and dispose of in a sanitary landfill, or by incineration; or, if
allowed by State and local authorities, by burning. If burned, stay out of smoke.
PRODUCT INFORMATION
RIMFIRE® Max Herbicide is intended for application as a foliar spray in winter and spring wheat (including durum) for control
of annual grasses and broadleaf weeds.
ENVIRONMENTAL AND BIOLOGICAL ACTIVITY
RIMFIRE Max Herbicide is absorbed by foliage and roots of weeds and offers contact and residual weed control. RIMFIRE
Max Herbicide provides the most consistent control when applied to actively growing weeds. RIMFIRE Max Herbicide is active
against many important grass and broadleaf weeds (see list below for details). Environmental conditions, which support
vigorous growth of crop and weeds, also result in highest herbicidal activity. Following application, symptoms of herbicidal
activity may develop within several days. Speed of herbicide action depends on environmental conditions and increases with
increasing temperature and moisture. Sensitive weeds quickly stop growing and no longer compete with the crop. Visible
signs of activity include cessation of elongation, yellowing and/or reddening of weeds, and finally plant death.
Abnormal environmental conditions (excess soil moisture or drought, extreme cold weather) can influence crop tolerance
and herbicidal activity and may cause temporary response of the crop or reduced levels of weed control. This may result in
weed stunting, rather than weed death. However, weed competition will be greatly reduced, and should permit normal crop
development. Crop response may occur when frost occurs shortly after an application of RIMFIRE Max Herbicide to actively
growing wheat.
CROPS
RIMFIRE Max Herbicide may be used on winter and spring wheat, including durum.
SURFACTANTS
RIMFIRE Max Herbicide is a water dispersible granule that does not include an adjuvant. A recommended adjuvant must be
tankmixed with RIMFIRE Max Herbicide according to the guidelines as described in the MIXING INSTRUCTIONS section.
RIMFIRE Max Herbicide offers the flexibility to choose between three distinct adjuvant systems including 1) methylated seed
oil or 2) “basic blend” type adjuvant, 3) non-ionic surfactant plus ammonium nitrogen fertilizer. A methylated seed oil, basic
blend adjuvant or a non-ionic surfactant (NIS) plus ammonium nitrogen fertilizer must be tankmixed with RIMFIRE Max
Herbicide.
Do not use additives that alter the spray solution below 6.0 pH. Best results are obtained at spray solution pH of 6.0 – 8.0.
Organosilicone-based surfactants or crop oil concentrate surfactants are not recommended for use with RIMFIRE Max
Herbicide.
1) Methylated Seed Oil (MSO)
A methylated seed oil offers the most robust adjuvancy with RIMFIRE Max Herbicide. Select a high quality methylated seed
oil containing at least 80% methylated seed oil and 10% emulsifier or greater. Use 1.3 – 1.5 pt MSO/acre in tankmixture
with RIMFIRE Max Herbicide. The potential for crop response may be increased with the use of MSO compared to non-ionic
surfactant plus ammonium nitrogen fertilizer.
When a methylated seed oil is used, ammonium nitrogen or ammonium sulfate fertilizers are not recommended.

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2) Basic Blend Adjuvants
A basic blend adjuvant is a formulated combination of a non-ionic surfactant or methylated seed oil and a nitrogen source.
Apply a basic blend adjuvant at 1 - 1.25 % v/v in tank mixture with RIMFIRE Max Herbicide. Select the appropriate amount
of basic blend adjuvant per acre depending on local conditions but do not apply less basic blend adjuvant than 0.8 pt/acre.
When a basic blend adjuvant is used, ammonium nitrogen or ammonium sulfate fertilizers are not recommended.
3) Non-ionic Surfactant (NIS) + Ammonium Nitrogen Fertilizer (in water carrier solutions)
Use a non-ionic surfactant at a concentration of 0.25 - 0.5% v/v (1-2 qts per 100 gallons of spray solution) with ammonium
nitrogen fertilizer. At least 80% of the surfactant product must be active non-ionic surfactant. Avoid products that do not
accurately define their ingredients. Use a spray grade quality urea ammonium nitrogen fertilizer (28-0-0 or 30-0-0 or 32-
0-0 at 1 – 2 qt/acre) or ammonium sulfate fertilizer (21-0-0-24 at 1.5 – 3 lbs/acre).
APPLICATION INFORMATION
RIMFIRE Max Herbicide should be applied to actively growing wheat in the spring.
RIMFIRE Max Herbicide provides consistent performance when applied with water as the spray carrier and the appropriate
additive is added to the spray solution. Properly calibrated ground or aerial (fixed wing or helicopter) application equipment
may be used to apply RIMFIRE Max Herbicide postemergence as a foliar spray. Weed infestations should be treated before
they become competitive with the crop.
Thorough coverage of weeds is necessary to obtain good weed control. The use of nozzles and spray pressure that deliver
MEDIUM spray droplets as indicated in the nozzle manufacturer’s catalogs and in accordance with ASAE Standard S-572
are highly recommended for optimum spray coverage and canopy penetration.
Select spray nozzles that provide best spray distribution and weed coverage at the appropriate spray pressure. Avoid
uneven spray distribution, skips, overlaps, and spray drift.
Do not apply RIMFIRE Max Herbicide through any type of irrigation system.
Apply 3 ounces/acre of RIMFIRE Max Herbicide to wheat from emergence (fully expanded first true leaf) up to flag leaf
emergence. Do not apply more than a total of 3 ounces/acre of RIMFIRE Max Herbicide per season.
GROUND APPLICATION
RIMFIRE Max Herbicide can be applied broadcast in 10 or more gallons of water per acre. For weed control in dense weed
canopies, use 15 or more gallons of water per acre. Weed infestations should be treated before they become competitive
with the crop.
The use of 80-degree or 110-degree flat-fan nozzles is highly recommended for optimum spray coverage and canopy
penetration. To get uniform spray coverage, use nozzles and pressure that deliver MEDIUM spray droplets as indicated
in nozzle manufacturer’s catalogs and in accordance with ASAE standard S-572. Use screens that are 50 mesh or larger.
Ground speed for application should not exceed 10 mph.
AERIAL APPLICATION
Calibrate the spray equipment prior to use. RIMFIRE Max Herbicide should be applied in a minimum of 5 gallons of water
per broadcast acre. Weed infestations should be treated before they become competitive with the crop.
To get uniform spray coverage, use nozzles and pressure that deliver MEDIUM spray droplets as indicated in nozzle
manufacturer’s catalogs and in accordance with ASAE standard S-572. DO NOT use raindrop nozzles.
(continued)

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Aerial applications with this product should be made at a maximum height of 10 feet above the crop with low drift
nozzles. Avoid application under conditions where uniform coverage cannot be obtained or where excessive spray drift
may occur.
Flagmen and loaders should avoid inhalation of spray mist and prolonged contact with skin.
See the Spray Drift Management section of this label for additional information on proper application of RIMFIRE Max
Herbicide.
MIXING INSTRUCTIONS
RIMFIRE Max Herbicide must be applied with clean and properly calibrated equipment. Prior to adding RIMFIRE
Max Herbicide to the spray tank, ensure that the spray tank, filters and nozzles have been thoroughly cleaned. In-line
strainers and nozzle screens should be 50 mesh or coarser.
1. Fill the spray tank 1/4 to 1/2 full with clean water and begin agitation or bypass.
2. Add the appropriate rate of RIMFIRE Max Herbicide, as determined under “Recommended Rates,” directly to the
spray tank. Maintain sufficient agitation during both mixing and application.
3. Add a recommended broadleaf weed herbicide, if desired.
4. Add the surfactant.
5. Fill the spray tank with balance of water needed.
6. Continue agitation during RIMFIRE Max Herbicide application to ensure uniform spray coverage. If the mixture is not
continuously agitated, settling may occur. Use spray solution within 24 hours after mixing.
RE-SUSPENDING WDG PRODUCTS IN SPRAY SOLUTION
Like other Water Dispersible Granules or suspension concentrates (SC’s), RIMFIRE Max Herbicide may settle if left
standing without agitation. If the spray solution is allowed to settle for one hour or more, re-agitate the spray solution
for a minimum of 15 minutes before application.
COMPATIBILITY
If RIMFIRE Max Herbicide is to be tank mixed with other herbicides, compatibility should be tested prior to mixing. To
test for compatibility, use a small container and mix a small amount (0.5 to 1 quart) of spray solution, combining all
ingredients in the same ratio as the anticipated use. If any indications of physical incompatibility develop, do not use
this mixture for spraying. Indications of incompatibility usually occur within 5-15 minutes after mixing. Indications of
incompatibility include separation in the mix and either clumping or clabbering of the mixture. Read and follow the
label of each tank mix product used for precautionary statements, directions for use, geographic and other restrictions.

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WEEDS CONTROLLED
RIMFIRE Max Herbicide effectively controls the following weeds1 when applied at the rates and application timings
shown and weeds are actively growing. Best control is achieved when grass weeds are treated at the 1-leaf to 2-tiller
stage of growth and before broadleaf weeds are larger than 2 inches in height.
GRASS WEED
RECOMMENDATIONS
BROADLEAF WEED
RECOMMENDATIONS
Cheat (True cheat)* Bromus secalinus C Blue mustard Chorispora tenella C
Barnyardgrass* Echinochloa crus-galli C Black mustard Brassica nigra C
Downy brome Bromus tectorum PC Catchweed bedstraw Galium aparine PC
Foxtail barley* Hordeum jubatum C Canola (volunteer) Brassica napus C
Green foxtail* Setaria viridis C Common chickweed Stellaria media PC
Japanese brome* Bromus japonicus C Cornflower / Bachelor’s Button Centaurea cyanus PC
Little barley Hordeum pusillum PC Dogfennel Eupatorium capillifolium PC
Persian darnel* Lolium persicum PC Field pennycress Thlaspi arvense PC
Quackgrass Agropyron repens PC Henbit Lamium amplexicaule PC
Smooth brome Bromus inermis PC Ivyleaf speedwell Veronica hederaefolia PC
Wild oat Avena fatua C London rocket Sisymbrium irio C
Yellow Foxtail* Setaria pumila C Mouseear chickweed Cerastium vulgatum PC
Red clover Trifolium pratense PC
Redroot pigweed1 Amaranthus retroflexus PC
Shepherd’s purse Capsella bursa-pastoris PC
Swinecress Coronopus didymus PC
Tansy mustard Descurania pinnata C
Tumble mustard Sisymbrium altissimum C
Wild beet Beta vulgaris C
Wild mustard Sinapis arvensis C
Wild radish Raphanus raphanistrum C
Wild turnip Brassica rapa C
C means Control. PC means Partial Control. Partially controlled weeds will be stunted in growth and/or be reduced in
number as compared to non-treated areas but performance will not be commercially acceptable.
*These weeds will be controlled when RIMFIRE Max Herbicide is applied at the pre-tiller stage of weed growth.
1 Naturally occurring resistant biotypes of weeds are known to occur. Refer to the WEED RESISTANCE section for additional
information regarding management tactics for resistant weeds.
USE RATES
Unless otherwise recommended by Bayer CropScience, do not use less than 3 oz per acre of RIMFIRE Max Herbicide.
Apply RIMFIRE Max Herbicide at 3 ounces/acre to wheat in spring as a single application to actively growing weeds. Do not
exceed a product application rate of 3 ounces/acre in a single application in the spring.

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TANKMIXES
For broad-spectrum control of both annual grasses and broadleaf weeds, RIMFIRE Max Herbicide may be mixed with
broadleaf herbicides and a non-ionic surfactant. RIMFIRE Max Herbicide contains 0.144 pounds of mefenpyr-diethyl per
pound of product. Applying the maximum-labeled rate of RIMFIRE Max Herbicide delivers 0.027 lbs of mefenpyr-diethyl per
acre. Do not apply more than 0.053 pounds of mefenpyr-diethyl per acre per year. With all tank-mix partners, read and follow
use directions, rates, precautions, timing, recropping restrictions, grazing interval restrictions and recommendations on the
broadleaf herbicide and surfactant labels.
Possible tank-mix partners include:
AFFINITY TANKMIX™ 1 HARMONY EXTRA XP®
AFFINITY BROADSPEC™ 1 HUSKIE™
ALLY® MCP Ester 3
ALLY EXTRA® OLYMPUS™ 4
BRONATE ADVANCED™ * 2 STARANE® , STARANE NXT , Starane Ultra5
BUCTRIL® * STINGER®
EXPRESS® WIDEMATCH™ 6
HARMONY®
* Equivalent bromoxynil products may be substituted in a tankmix for these products.
1 Up to 0.6 oz/A of Affinity Tankmix or up to 0.4 oz/A Affinity Broadspec is recommended for use in combination with RIMFIRE
Max Herbicide.
2 Do not exceed 0.8 pt/A of Bronate Advanced in combination with RIMFIRE Max Herbicide.
3 MCP Ester may be added as broadleaf tank mix partner with RIMFIRE Max Herbicide at no more than 0.25 lb ai/A.
4 Refer to Olympus label concerning rate and crop rotation recommendations. 3 oz of RIMFIRE Max contains 0.0088 lb
propoxycarbazone-sodium active ingredient. Do not apply more than 0.0525 lb propoxycarbazone-sodium active ingredient
per acre per crop year. This limit includes all products, which contain propoxycarbazone-sodium used on the same acre.
5 0.3 pt/A of Starane or up to 14 oz of Starane NXT or 2.8 oz Starane Ultra may be used in combination with RIMFIRE Max
Herbicide.
6 Up to 1.0 pt/A of WideMatch may be used in combination with RIMFIRE Max Herbicide.
TANK MIXTURES FOR DISEASE CONTROL
RIMFIRE Max Herbicide may be applied in combination with Stratego®, Tilt®, Headline, or Topsin® M 70WP fungicides for
weed and disease control. Do not apply RIMFIRE Max Herbicide in tank mixture with tebuconazole.
When a fungicide and broadleaf herbicide are added in tankmixture to RIMFIRE Max Herbicide, grass control may be delayed or
reduced. Refer to the specific fungicide label for use directions, application rates, restrictions and a list of diseases controlled.
TANK MIXTURES FOR INSECT CONTROL
RIMFIRE Max Herbicide may be applied with Baythroid® XL, Sevin® XLR Plus, Warrior® Insecticide with Zeon Technology, or
Mustang Max insecticides. Refer to the specific insecticide label for use directions, application rates, restrictions and a list of
insects controlled.
TANK MIX PRECAUTIONS
Always follow the label instructions of the tankmix partner as well as RIMFIRE Max Herbicide. Check the compatibility of RIMFIRE
Max Herbicide and the tankmix partner by mixing all components in the order specified in the Mixing Instructions section, including
adjuvants and water, into a small separate container in order to evaluate compatibility prior to adding them to the tank.

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TANK CLEANUP PROCEDURE
1. Drain the tank completely, and then wash out tank, boom and hoses with clean water. Drain again.
2. Half fill the tank with clean water and add ammonia (i.e., 3% domestic ammonia solution) at a dilution rate of 1% (i.e., 1 gallon
of domestic ammonia for every 100 gallons of rinsate). Complete filling of the tank with water. Agitate/recirculate and flush
through boom and hoses. Leave agitation on for 10 minutes. Drain tank completely.
3. Repeat step 2.
4. Remove nozzles and screens and soak them in a 1% ammonia solution. Inspect nozzles and screens and remove visible
residues.
5. Flush tank, boom, and hoses with clean water.
6. Inspect tank for visible residues. If present, repeat step 2.
CROP ROTATION RESTRICTIONS
To ensure safety of rotational crops, the following rotational intervals must be followed:
North Dakota & Minnesota, Montana & South Dakota Washington, Oregon & Idaho

Crop
Rotation Interval
(Months)

Crop
Rotation Interval
(Months)
Wheat 0 Wheat 0
 Millet 4  Millet 4
Alfalfa 10 Alfalfa 10
Barley 10 Barley 10
Canola 10 Canola 12
Corn-conventional 10 Dry Beans 10
Dry Beans 10 Lentils 10
Flax 10 Peas 10
Lentils 10 Corn-Conventional 18
Peas 10
Safflower 10
Soybeans 10
Sugar Beets 10
Sunflowers 10
• In areas where a crop is not specified, conduct a field bioassay as described in the FIELD BIOASSAY section of this
label.
• In all areas, 24 inches of precipitation and a 12-month rotation interval are required for potatoes, buckwheat, and
onions.
Rotational crops should not be planted on clay or eroded knolls or hillsides following a RIMFIRE Max Herbicide
application without conducting a field bioassay.

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FIELD BIOASSAY
A field bioassay must be conducted for crops not listed on this label and for crops listed on the label for which a shorter
plant-back interval than listed is desired.
To conduct a field bioassay, plant strips of the crop you want to grow the season following RIMFIRE Max Herbicide
application. Monitor the crop for response to RIMFIRE Max Herbicide to determine if the crop can be grown safely in
previously treated RIMFIRE Max Herbicide areas.
Regardless of the bioassay results, do not plant any crop, except fall-sown or winter wheat, closer than 4 months after
a RIMFIRE Max Herbicide application.
WEED RESISTANCE
Mode of Action
The active ingredients in this product, mesosulfuron-methyl, and propoxycarbazone-sodium are Group 2 Herbicides
based on the mode of action classification system of the Weed Science Society of America. Any weed population may
contain plants naturally resistant to Group 2 herbicides. Weeds resistant to Group 2 herbicides may be effectively
managed utilizing another herbicide from a different Group and/or by using cultural or mechanical practices. However, a
herbicide mode of action classification by itself may not adequately address specific weeds that are resistant to specific
herbicides. Consult your local company representative, state cooperative extension service, professional consultants, or
other qualified authorities to determine appropriate actions for treating specific resistant weeds.
Best Management Practices
RIMFIRE Max Herbicide is an acetolactate synthase (ALS) inhibiting herbicide. Repeated use of herbicides with the
same mode of action allows resistant weeds to spread. Proactively implementing diversified weed management
programs may delay the development of resistant weeds. Diversified programs include the use of multiple herbicides
with different modes of action with overlapping weed spectrums as well as the utilization of cultural weed control
practices, such as tillage.
• Use labeled rates of herbicides and carefully follow the directions for use
• Scout fields after a herbicide application to facilitate early detection of weed shifts  and/or weed resistance
• Implement measures to avoid allowing weeds to reproduce by seed or proliferate vegetatively
• Clean equipment between sites and avoid movement of plant material between sites to retard the spread of potentially
resistant weed seed.
The use of RIMFIRE Max Herbicide should conform to resistance management strategies established for the use area.
Consult your agricultural advisor for resistance management strategies and recommended pest management practices
for your area.
SPRAY DRIFT MANAGEMENT
RIMFIRE Max Herbicide is not volatile. Damage to sensitive crops can occur as a result of spray drift. Spray drift can
be managed by several application factors and by spraying under the appropriate climatic conditions. Consequently,
avoidance of spray drift is the responsibility of the applicator and grower.
SENSITIVE AREAS: The pesticide must only be applied when the potential for drift to adjacent sensitive areas (e.g.,
residential areas, bodies of water, known habitats for threatened or endangered species, non-target crops) is minimal
(e.g., when wind is blowing away from the sensitive areas).
Avoiding spray drift at the application site is the responsibility of the applicator and grower. The interaction of many
equipment-and-weather-related factors determine the potential for spray drift. The applicator and the grower are
responsible for considering all these factors when making decisions.
(continued)

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Do not apply under circumstances where possible drift to unprotected persons or to food, forage, or other plantings that
might be damaged or crops thereof rendered unfit for sale, use, or consumption can occur.
The following drift management requirements must be followed to avoid off-target drift movement from aerial applications
to agricultural field crops.
1. The distance of the outer most nozzles on the boom must not exceed 3/4 the length of the wingspan or rotor.
2. Nozzles must always point backward parallel with the air stream and never be pointed downwards more than 45 degrees.
3. All aerial and ground application equipment must be properly maintained and calibrated using appropriate carriers.
Where states have more stringent regulations, they shall be observed. The applicator should be familiar with and take into
account the information covered in the Aerial Drift Reduction Advisory Information.
INFORMATION ON DROPLET SIZE:
The most effective way to reduce drift potential is to apply large droplets. The best drift management strategy is to apply
the largest droplets that provide sufficient coverage and control. Applying larger droplets reduces drift potential, but will not
prevent drift if applications are made improperly, or under unfavorable environmental conditions (see Wind, Temperature
and Humidity, and Temperature Inversions on next page).
Uniform, thorough spray coverage is important to achieve consistent weed control. Select nozzles and pressure that deliver
MEDIUM spray droplets as indicated in nozzle manufacturer’s catalogs and in accordance with ASAE Standard S-572. Nozzles
that deliver COARSE spray droplets may be used to reduce spray drift provided spray volume per acre (GPA) is increased to
maintain coverage of weeds.
CONTROLLING DROPLET SIZE:
• Volume - Use high flow rate nozzles to apply the highest practical spray volume. Nozzles with higher rated flows produce
larger droplets.
• Pressure - Do not exceed the nozzle manufacturer’s recommended pressures. For many nozzle types, lower pressure
produces larger droplets. When higher flow rates are needed, use higher flow rate nozzles instead of increasing pressure.
• Number of nozzles - Use the minimum number of nozzles that provide uniform coverage.
• Nozzle Orientation - Orienting nozzles so that the spray is released parallel to the airstream produces larger droplets than
other orientations and is the recommended practice. Significant deflection from horizontal will reduce droplet size and
increase drift potential.
• Nozzle Type - Use a nozzle type that is designed for the intended application. With most nozzle types, narrower spray angles
produce larger droplets. Consider using low-drift nozzles. Solid stream nozzles oriented straight back produce the largest
droplets and the lowest drift.
BOOM LENGTH:
For some use patterns, reducing the effective boom length to less than 3/4 of the wingspan or rotor length may further reduce
drift without reducing swath width.
APPLICATION HEIGHT:
Applications should not be made at a height greater than 10 feet above the top of the largest plants unless a greater height is
required for aircraft safety. Making applications at the lowest height that is safe reduces exposure of droplets to evaporation
and wind.
For ground boom applications, apply with nozzle height no more than 4 feet above the ground or crop canopy.

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SWATH ADJUSTMENT:
When applications are made with a crosswind, the swath will be displaced downward. Therefore, on the up and downwind
edges of the field, the applicator must compensate for this displacement by adjusting the path of the aircraft upwind. Swath
adjustment distance should increase, with increasing drift potential (higher wind, smaller drops, etc.).
WIND:
Drift potential is lowest between wind speeds of 2 - 10 mph. However, many factors, including droplet size and equipment
type determine drift potential at any given speed. Application should be avoided below 2 mph due to variable wind direction
and high inversion potential. NOTE: Local terrain can influence wind patterns. Every applicator should be familiar with local
wind patterns and how they affect spray drift.
For all non-aerial applications, wind speed must be measured adjacent to the application site, on the upwind side, immediately
prior to application.
TEMPERATURE AND HUMIDITY:
When making applications in low relative humidity, set up equipment to produce larger droplets to compensate for evaporation.
Droplet evaporation is most severe when conditions are both hot and dry. Avoid spraying during conditions of low humidity
and/or high temperatures.
TEMPERATURE INVERSIONS:
Do not make aerial or ground applications into areas of temperature inversions because drift potential is high. Temperature
inversions restrict vertical air mixing, which causes small-suspended droplets to remain in a concentrated cloud. This cloud
can move in unpredictable directions due to the light variable winds common during inversions. Temperature inversions are
characterized by increasing temperatures with altitude and are common on nights with limited cloud cover and light to no
wind. They begin to form as the sun sets and often continue into the morning. Their presence can be indicated by ground fog;
however, if fog is not present, inversions can also be identified 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.
ENDANGERED SPECIES
To avoid adverse effects on endangered plant species, the following mitigation measures will be required where
endangered species occur in Counties listed in the table on the following page.
For ground applications, the applicator must:
1. Apply when there is sustained wind away from native plant communities, OR
2. Leave 50 foot untreated buffer between treatment area and native plant communities.
For aerial applications, the applicator must:
1. Apply only when there is sustained wind away from native plant communities, OR
2. Leave 350 foot untreated buffer between treatment area and native plants.
PRECAUTIONS FOR USE
• Use adjuvants as specified on this label.
• RIMFIRE Max Herbicide is rainfast 4 hours after application to most weed species. Rainfall within 4 hours may result
in reduced weed control.
• Applications should be made to actively growing weeds. Weed control may be reduced when weeds are under stress
due to severe weather conditions, drought, very cold temperatures, etc. Weed control may be reduced if the herbicide
application is made under dry, dusty conditions – especially in the wheel track areas. Ground speed for application
should not exceed 10 mph.

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RESTRICTIONS FOR USE
• Do not apply RIMFIRE Max Herbicide to crops undersown with grass or legume species.
• Do not make more than one application of RIMFIRE Max Herbicide per season.
• Do not apply more than 3 ounces/acre of RIMFIRE Max Herbicide per season.
• Do not apply more than 0.053 pounds of mefenpyr-diethyl per acre per year.
• Do not apply when wind causes drift to off-site vegetation as injury may occur. Small amounts of RIMFIRE Max
Herbicide via drift or tank contamination can cause severe damage to crops other than wheat. Careful management of
spray drifts and tank cleanout is required.
• Do not apply RIMFIRE Max Herbicide in tank mixture with malathion, mancozeb, phosphorodithioate (Di-Syston), or methyl
parathion as unacceptable crop phytotoxicity may occur.
• Do not apply RIMFIRE Max Herbicide in tank mixture with tebuconazole.
• Do not harvest wheat for forage before 30 days or grain and straw 71 days after a RIMFIRE Max Herbicide application.

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IMPORTANT: READ BEFORE USE
Read the entire Directions for Use, Conditions, Disclaimer of Warranties and Limitations of Liability before using
this product. If terms are not acceptable, return the unopened product container at once.
By using this product, user or buyer accepts the following Conditions, Disclaimer of Warranties and Limitations
of Liability.
CONDITIONS: The directions for use of this product are believed to be adequate and must be followed carefully.
However, it is impossible to eliminate all risks 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 the manner of use or application, all of which are beyond the control of Bayer CropScience. All such
risks shall be assumed by the user or buyer.
DISCLAIMER OF WARRANTIES: TO THE EXTENT CONSISTENT WITH APPLICABLE LAW, BAYER CROPSCIENCE
MAKES NO OTHER WARRANTIES, EXPRESS OR IMPLIED, OF MERCHANTABILITY OR OF FITNESS FOR A
PARTICULAR PURPOSE OR OTHERWISE, THAT EXTEND BEYOND THE STATEMENTS MADE ON THIS
LABEL. NO AGENT OF BAYER CROPSCIENCE IS AUTHORIZED TO MAKE ANY WARRANTIES BEYOND THOSE
CONTAINED HEREIN OR TO MODIFY THE WARRANTIES CONTAINED HEREIN. TO THE EXTENT CONSISTENT
WITH APPLICABLE LAW, BAYER CROPSCIENCE DISCLAIMS ANY LIABILITY WHATSOEVER FOR SPECIAL,
INCIDENTAL OR CONSEQUENTIAL DAMAGES RESULTING FROM THE USE OR HANDLING OF THIS PRODUCT.
LIMITATIONS OF LIABILITY: TO THE EXTENT CONSISTENT WITH APPLICABLE LAW, THE EXCLUSIVE REMEDY
OF THE USER OR BUYER FOR ANY AND ALL LOSSES, INJURIES OR DAMAGES RESULTING FROM THE USE
OR HANDLING OF THIS PRODUCT, WHETHER IN CONTRACT, WARRANTY, TORT, NEGLIGENCE, STRICT
LIABILITY OR OTHERWISE, SHALL NOT EXCEED THE PURCHASE PRICE PAID, OR AT BAYER CROPSCIENCE’S
ELECTION, THE REPLACEMENT OF PRODUCT.
Bronate Advanced, Huskie and Olympus are trademarks of Bayer. Baythroid, Buctril, Rimfire, Stratego, Sevin,
and Silverado are registered trademarks of Bayer.
Headline is a registered trademark of BASF Corporation.
Ally, Ally Extra, Affinity Tankmix, Affinity Broadspec, Express, Harmony Extra XP and Harmony are registered
trademarks of E.I. DuPont de Nemours Company.
Topsin is a registered trademark of Cerexagri, Inc.
Starane, Stinger and WideMatch are trademarks of Dow AgroSciences LLC.
Tilt, and Warrior are registered trademarks of Syngenta Crop Protection, Inc.

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RIMFIRE® Max Herbicide
For post-emergence control of certain grasses and
broadleaf weeds in winter and spring wheat (including
durum).
ACTIVE INGREDIENTS: Propoxycarbazone-sodium
 (CAS No. 181274-15-7) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4.76%
Mesosulfuron-Methyl (CAS No. 208465-21-8) . . . . . . . . . . . . . . . . . . 1.91%
INERT INGREDIENTS:  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  93.33%
Contains petroleum distillates.                                             TOTAL:  100.00%
This product is a water dispersible granule containing 4.76%
Propoxycarbazone-sodium and 1.91% Mesosulfuron-methyl,
by weight
EPA Reg. No. 264-1099                                 EPA Est. No. 000264-DEU-001
STOP - Read the label before use
KEEP OUT OF REACH OF CHILDREN
WARNING  AVISO
Si usted no entiende la etiqueta, busque a alguien para que se la explique
a usted en detalle. (If you do not understand the label, find someone to
explain it to you in detail.)
FOR ADDITIONAL PRECAUTIONARY STATEMENTS: See Attached Booklet.
For MEDICAL And TRANSPORTATION Emergencies ONLY
Call 24 Hours A Day 1-800-334-7577
For PRODUCT USE Information, Call 1-866-99BAYER (1-866-992-2937)
FIRST AID
IF IN EYES: • Hold eye open and rinse slowly and gently with water for
  15-20 minutes.
• Remove contact lenses, if present, after the first 5
  minutes, then continue rinsing.
• Call a poison control center or doctor for treatment advice.
IF ON SKIN OR
CLOTHING:
• Take off contaminated clothing.
• Rinse skin immediately with plenty of water for 15-20
  minutes.
• Call a poison control center or doctor for treatment advice.
IF INHALED: • Move person to fresh air.
• If person is not breathing, call 911 or an ambulance,
  then give artificial respiration, preferably by mouth-to-
  mouth, if possible.
• Call a poison control center or doctor for further
  treatment advice.
IF SWALLOWED: • Immediately call a poison control center or doctor
  for treatment advice.
• Do not induce vomiting unless told to do so by a poison
  control center or doctor.
• Do not give any liquid to the person.
• Do not give anything by mouth to an unconscious
  person.
For MEDICAL Emergencies Call 24 Hours A Day 1-800-334-7577.
Have the product container or label with you when calling a poison control
center or doctor or going for treatment.
NOTE TO PHYSICIAN: May pose an aspiration pneumonia hazard. Contains
petroleum distillate.
PRECAUTIONARY STATEMENTS
WARNING
HAZARD TO HUMANS AND DOMESTIC ANIMALS
Causes substantial but temporary eye injury. Harmful if absorbed through
skin. Harmful if inhaled. Harmful if swallowed. Avoid contact with skin, eyes,
or clothing. Do not get in eyes or on clothing. Avoid breathing dust. Wear
protective eyewear (goggles, face shield, or safety glasses). Wear long-sleeved
shirt and long pants, socks, shoes, and chemical-resistant gloves (such as
Barrier Laminate, Butyl Rubber, Nitrile Rubber, or Viton).
FOR ADDITIONAL PRECAUTIONARY STATEMENTS:
See attached label booklet:   Personal Protective Equipment (PPE),
  User Safety Recommendations, and Environmental Hazards
DIRECTIONS FOR USE: See attached booklet.
It is a violation of Federal law to use this product in a manner
inconsistent with its labeling.
Do not use this product until you have read the entire label.

STORAGE AND DISPOSAL
Do not contaminate water, food, or feed by storage and disposal.
PESTICIDE STORAGE
Store in a cool, dry place.
PESTICIDE DISPOSAL
Wastes resulting from the use of this product may be disposed of on site or at
an approved waste disposal facility.
CONTAINER HANDLING
Non-refillable container. Do not reuse or refill this container. Offer for recycling,
if available. Offer for reconditioning, if appropriate. 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
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. Puncture and dispose of in a sanitary landfill, or by incineration;
or, if allowed by State and local authorities, by burning. If burned, stay out
of smoke.
Bayer CropScience LP
800 N. Lindbergh Blvd.
St. Louis, MO 63167
RIMFIRE is a registered trademark of Bayer.
©2019 Bayer CropScience                         US79884087D  120227Dv2   02/19

Net Contents: 5 lbs. 10 ozs. (90 ozs.)