crop-chem-docs/corpus/epa_ppls/264-847.md

RIMFIRE HERBICIDE

• EPA Reg No: 264-847
• Registrant: BAYER CROPSCIENCE, LLC
• Signal word: Warning
• Active ingredients: Mesosulfuron-methyl (2.03%); Propoxycarbazone-sodium (8.14%)
• Label accepted: 2010-08-17
• Source PDF: https://www3.epa.gov/pesticides/chem_search/ppls/000264-00847-20100817.pdf

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9~-I/-LOIO UNITED STATES ENVIRONMENTAL PROTECTION AGENCY WASHINGTON, D.C. 20460 OFFICE OF CHEMICAL SAFETY AND POLLUTION PREVENTION Ms. Laura Phelps Bayer CropScience LP AUG 1 7 2010 P.O. Box 12014,2 T.W. Alexander Dr. Research Triangle Park, NC 27709 Subject: Label Amendment - address mefenpyr-diethyl maximum seasonal use rate Product Name: Rimfire Herbicide EPA Registration Number: 264-847 Decision Number: 434606 The label amendment referred to above, submitted in connection with registration under the Federal Insecticide, Fungicide and Rodenticide Act (FIFRA), as amended is acceptable provided that you make the following change to the product labeling:

1. Revise the section heading, "Container Disposal" with "Container Handling" in the Storage and Disposal section.
2. Replace "General" with "Product" in the section heading, "General Information" on page 3. The word "General" is an implied safety claim that makes all associated text unenforceable.
3. Add the word "per"after "mefenpyr-diethyl" and before "pound" in the safener language of the Tank Mixes section so that it reads as follows: RIMFIRE Herbicide contains 0.121 pounds of mefenpyr-diethyl per pound of product."
4. In the 'Sensitive Areas' section on page 8, replace "should" with "must" in the first sentence. One copy of the master label stamped "Accepted with Comments" is enclosed for your records. Products shipped after 18 months from the date on this notice or the next printing of the label whichever occurs first, must bear the new revised label. If these conditions are not complied with, the registration will be subject to cancellation in accordance with FIFRA. Your release for shipment of this product constitutes acceptance of these conditions. This label supersedes all previous accepted labels. You must submit one copy of the final printed label before the product is released for shipment. Sincerely, ·Kathryn V. Monatgue Product Manager (23) Herbicide Branch Registration Division (7S0SP) J- \L

RlfMFIRETM Herbicide For p:ost-emergence control of certain grasses and broadleaf weeds in winter and spring wheat (including durum). ACTIVE INGREDIENTS: Propoxycarbazone-sodium (CAS No. 181274-15-7) .......................................................................................................................... 8.14% Mesosulfuron-Methyl (CAS No. 208465-21-8) .................................................................................................................................... 2.03% INERT: INGREDIENTS .................................................................................................................................................................... 89.830/0 Contains petroleum distillates. TOTAL: 100.0% This product is a water dispersible granule containing 8.14% Propoxycarbazone-sodium and 2.03% Mesosulfuron-methyl , by weight EPA !Reg. No. 264-847 EPA Est. 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 MEDICAL And TRANSPORTATION Emergencies ONLY Call 24 Hours A Day 1-800-334-7577 For PRODUCT USE Information Call1-866-99BA YER (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 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. .6.':' • '" &:I. IF SWALLOWED: • Immediately call a poison control center or doctor for treatment advice. withCOMME • Do not induce vomiting unless told to do so by a poison control center or doctor. In EPA Letter ~ • Do not give any liquid to the person AUG 1 7 2( • Do not give anything by mouth to an unconscious person. Under the Federal In: ; IFON SKIN OR • Take off contaminated clothing. Fungicide, and RoderulC CLO"tHING: as amended. for the ~ • Rinse skin immediately with plenty of water for 15-20 minutes. registered under EPA Re, • Call a poison control center or doctor for treatment advice. ~ ~. .... ~ For MEDICAL Emergencies Call 24 Hours A Day 1-800-334-7577. ';:;;J.Q'1- ~4l Have the product container or label with you when calling a poison control center or doctor or going for treatment. NOTE TO PHYSICIAN: No specific antidote is available. Contains petroleum distillate. Vomiting may cause aspiration pneumonia. PRECAUTIONARY STATEMENTS WARNING HAZARD TO HUMANS AND DOMESTIC ANIMALS (1.. II ITS ted: 10 ide, ileAc :ide No. Causes substantial but temporary eye injury. Harmful if absorbed through skin, inhaled, or swallowed. Do not get in ~yes, on skin, or clothing. Avoid contact with skin and breathing dust.

-lL PERS:ONAL 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, 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)j, the handler PPE requirements may be reduced or modified as specified in the WPS. USER SAFETY RECOMMENDATIONS User should: • Wash hands before eating, drinking, chewing gum, using tobacco or using the toilet. • 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 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. 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 thi~ 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 pestici<;les. It contains reqUirements for training, decontamination, notification, and emergency assistance. It also contains specific instruc,ions 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 norenter or allow worker entry into treated areas during the restricted entry interval (REI) of 12 hours. PPE re:quired 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 DISOPSAL Wastes resulting from the use of this product may be disposed of on site or at an approved waste disposal facility. CONTAINER DISPOSAL Non-refillable container. Do not reuse or refill this container. Offer for recycling, if available. Offer for reconditionir,g, if appropriate. Triple rinse container (or equivalent) promptly after emptying. Triple rinse as follows: Empty the remainin~ C'Jllid,ltS intc r:ppliation equipment or a mix tank. Fill the container 1/4 full with water and recap. Shake for 10 seconds. Pour rinsate into .3pplicaiion equipment or a miJ tank or store rinsate for later use or disposal. Drain for 10 seconds after the flow begins to drip. Repeat this prC'.eer1ure two more times. Puncture and dispose of in a sanitary landfill, or by incineration; or, if allowed by State and 10ca:·alitfJorities, iJy ;"Jrning. If burned, stay out of smoke. 2

GENERAL INFORMATION RIMFIE Herbicide is intended for application as a foliar spray in winter and spring wheat (including durum) for control of annual grasses and broadleaf weeds. ENVIONMENTAL AND BIOLOGICAL ACTIVITY RIMFI~E Herbicide is absorbed by foliage and roots of weeds and offers contact and residual weed control. RIMFIRE Herbicide provides the most consistent control when applied to actively grOwing weeds. RIMFIRE Herbicide is active against many important grass ~nd 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 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. Abnorr'nal 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 application to actively growing wheat. CROPS RIMFIRE Herbicide may be used on winter and spring wheat, including durum. VARIETIES If RIMFIRE Herbicide is tank-mixed with any other product, refer to the label of the tank-mix partner for further instructions and potential restrictions (timing of application, varietal tolerance). SURFACTANTS RIM FIRE Herbicide is a water dispersible granule that does not include an adjuvant. A recommended adjuvant must be tankmixed with RIMFI8E Herbicide according to the guidelines as described in the MIXING INSTRUCTIONS section. RIMFIRE 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 RIM FIRE Herbicide. Do nor use additives that alter the spray solution below 6.0 pH. Best results are obtained at spray solution pH of 6.0 - S.O. Organosilicone-based surfactants or crop oil concentrate surfactants are not recommended for use with RIM FIRE Herbicide.

1. Methylated Seed Oil (MSO) A metHylated seed oil offers the most robust adjuvancy with Rimfire Herbicide. Select a high quality methylated seed oil containing at least SO% methylated seed oil and 10% emulsifier or greater. Use 1.3 - 1.5 pt MSO/acre in tankmixture with RIMFIRE 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.
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 % vlv in tank mixture with RIMFIRE Herbicide. Select the appropriate amount of basic blend adjuvant per acre depending on local conditions but do not apply less basic blend adjuvant than O.S ptlacre. 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 SO% 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 qtlacre) or ammonium sulfate fertilizer (21-0-0-24 at 1.5 - 3Ibs/acre). APPLICATION INFORMATION RIM FIRE Herbicide should be applied to actively growing wheat in the spring. RIMFIRE 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 Herbiciae 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, overtaps, and spray drift. 3

Do not apply RIMFIRE Herbicide through any type of irrigation system. Apply ,1.75 ounces /Acre of RIMFIRE Herbicide to wheat from emergence (fully expanded first true leaf) up to flag leaf emergence. Under'dry conditions, use a dosage of up to 2.25 ounces /acre for best results. Do nof apply more than a total of 2.25 ounces/acre of RIM FIRE Herbicide per crop year. GRO\iJND APPLICATION l RIMFIRE 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 8O-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. AERIAL APPLICATION Calibrte the spray equipment prior to use. RIMFIRE 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. 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 RIM FIRE Herbicide. MIXING INSTRUCTIONS RIMFIE Herbicide must be applied with clean and properly calibrated equipment. Prior to adding RIMFIRE 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 Herbicide, as determined under "Recommended Rates", directly to the spray tank. Maintain sufficient agitation during both mixing and application.
3. Aqd 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 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 Herbicide will 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 RIMF;IRE 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. 4

WEEDS CONTROLLED RIMFI~E Herbicide effectively controls the following weeds 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 broad leaf weeds 'are larger than 2 inches in height. GRASS WEED BROADLEAF WEED RECOMMENDATIONS RECOMMENDATIONS Cheat (True cheat)* C Blue mustard C Barnyardgrass* C Black mustard C Downy brome PC Catchweed bedstraw PC Foxtail barley* C Canola (volunteer) C Green foxtail* C Common chickweed PC Japanese brome* C Cornflower / Bachelor's PC Button Little barley PC Dogfennel PC Persian darnel** PC Field pennycress PC Quackgrass PC Henbit PC Smooth brome PC Ivyleaf speedwell PC Wild oat C london rocket C Yellow Foxtail* C Mouseear chickweed PC Red clover PC Redroot pigweed 1 PC Shepherd's purse PC Swinecress PC Tansy mustard C Tumble mustard C Wild beet C Wild mustard C Wild radish C Wild turnip C C meal'is 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 Herbicide is applied at the pre-tiller stage of weed growth. ** For control of Persian darnel use 2.25 ozlA of Rimfire Herbicide tankmixed with 0.5 ozlASilverado Herbicide applied pre-tiller. , Naturally occurring resistant biotypes of redroot pigweed 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 1.75 oz per acre of RIM FIRE Herbicide. Apply RIMFIRE Herbicide at 1.75 - 2.25 ounces/acre to wheat in spring as a single application to actively growing weeds. Under dry conditions, use a dosage of up to 2.25 ounces/acre for best results. Do not exceed a product application rate of 2.25 ounces/acre in a single application in the spring. TANKMIXES For broad-spectrum control of both annual grasses and broadleaf weeds, RIM FIRE Herbicide may be mixed with broad leaf herbicides and a rion-ionic surfactant. RIMFIREHerbiCide contains 0.121 pounds 6f mefenpyr-diettlylpound of product Applying the maximum labeledlrate.of RIMFIRE'Herbicide deliverS 0:017 Ibs 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 broad leaf herbicide and surfactant labels. 5 6 -\L

I d Possible tank-mix partners inC U e: AFFIITY TANKMIXTM 1 HARMONY EXTRA XP® AFFIITY BROADSPECTM 1 HUSKIETM ALL yfP MCP Ester 3 ALLY' EXTRA ® OLYMPUSTM 4 BRONATE ADVANCEDTM * 2 SILVERADo®5 BUCTRIL® * STARANE®, STARANE NXT 6 EXPRESS® STINGER® HAR~ONY® WI DEMATCHTM7

• Equialent bromoxynil products may be substituted in a tankmix for these products. 1 Up to 0.6 ozlA of Affinity Tankmix or up to 0.4 ozlA Affinity Broadspec is recommended for use in combination with RIMFIRE. 2 Do not exceed 0.8 ptlA of Bronate Advanced in combination with RIM FIRE. 3 MCPEster may be added as broad leaf tank mix partner with RIMFIRE at no more than 0.25 Ib ai/A. 4 Refer' to Olympus label concerning crop rotation recommendations. Do not apply more than a total of 0.84 ounces of propoxYcarbazone-sodium (a.i.) per crop year. s Use 0.5 oz Silverado/A when tankmixing with RIMFIRE. 6 0.3 ptlA of Starane or up to 14 oz of Starane NXT is recommended for use in combination with RIMFIRE. 7 1.0 ptlA of WideMatch is recommended with for use in combination with RIMFIRE. TANK MIXTURES FOR DISEASE CONTROL RIMFIRE Herbicide may be applied in combination with Stratego®, Headline, Tilt® or Topsin® M 70WP fungicides for weed and disease control; When a fungicide and broad leaf herbicide are added in tankmixture to RIMIFIRE Herbicide, grass control may be delayed or reduce. Refer to the specific fungicide label for use directions, application rates, restrictions and a list of diseases controlled. TANKiMIXTURES FOR INSECT CONTROL RIM FIRE Herbicide may be applied with Baythroid® XL, Sevin® XLR Plus, Warrior® Insecticide with Zeon Technology or Z-Cype 0.8 EC Insecticide. Refer to the specific insecticide label for use directions, application rates, restrictions and a list of insects controlled. TANKMIX PRECAUTIONS Always: follow the label instructions of the tankmix partner as well as RIM FIRE Herbicide. Check the compatibility of RIMFIRE 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. TANKCLEANUP 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 RIMFIRE Herbicide breakdown in the soil is due mainly to microbial actiVity. It can be affected by soil temperature and moisture. Conditions that accelerate the breakdown of RIMFIRE Herbicide include adequate soil moisture and adequate soil temperatures to support microbial activity. Likewise, RIMFIRE Herbicide breakdown can be slowed under dry, cold conditions. When conSidering crop rotations, soil moisture and soil temperature conditions following application should be monitored. 6 7 --(1-

To ensure safety of rotational crops, the following rotational intervals must be followed: North Dakota & Minnesota, Montana & South Dakota Crop Rotation Interval (Months) Wheat 0 Millet 4 Alfalfa 10 Barley 10 Canola 10 Dry Beans 10 Flax 10 Lentils 10 Peas 10 Safflower 10 Soybeans 10 Sugar Beets 10 Sunflowers 10 Com - Conventional 12 W h" t as l"-gl on, o regon &Id h a 0 Crop Rotation Interval (Months) Wheat 0 Millet 4 Alfalfa 10 Barley 10 Canola 12 Dry Beans 10 Lentils 10 Peas 10 Com - Conventional 18 • 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 RIM FIRE Herbicide application without conducting a field bioassay. 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 Herbicide application. Monitor the crop fo~ response to RIMFIRE Herbicide to determine if the crop can be grown safely in previously treated RIMFIRE Herbicide areas. Regard,less of the bioassay results, do not plant any crop, except fall-sown or winter wheat, closer than 4 months after a RIMFIRE Herbicide application. WEED RESISTANCE RIM FIRE Herbicide is an acetolactate synthase (ALS) inhibiting herbicide. Some weed populations may contain plants naturally resistant to RIMFIRE Herbicide or other herbicides with same mode of action (ALS/AHAS enzyme inhibitors). Repeated use of herbicides with the same mode of action allows resistant weeds to spread. To manage the spread of resistant weed populations, use herbicides with different modes of action in tankmixture, rotation, or in conjunction with alternate cultural practices. The use of RIMFIRE 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. 7

SPRAY DRIFT MANAGEMENT , RIMFI~E 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 should 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 weathe:r-related factors determine the potential for spray drift. The applicator and the grower are responsible for considering all these factors 'when making decisions. 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 foliowing 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. AII!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 Advisorv 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 below). 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 COAR$E 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: • VoIume - Use high flow rate nozzles to apply the highest practical spray volume. Nozzles with higher rated flows produce larger droplets. • Prssure - 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 sOlTle 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 aircaft 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. 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.). 8

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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 inversibn 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 inon-aerial applications, wind speed must be measured adjacent to the application site, on the upwind side, immediately prior to application. TEMPERATURE AND HUMIDITY: When inaking 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 notimake 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 rapidlYldissipates 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. Ap'ply 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:
3. Apply only when there is sustained wind away from native plant communities, OR
4. Leave 350 foot untreated buffer between treatment area and native plants . . ~saifJ.€~~A ~~tt7t]d¥ity,:y Oregon Washington Baker Chelan Benton Cowlitz Clackamas Lewis Douglas Jackson Josephine Klamath Lane Linn Marion Polk Union Washington Yamhill 9 ( L

PRECAUTIONS FOR USE • Use adjuvants as specified on this label. • Do' not apply RIM FIRE Herbicide to crops undersown with grass or legume species. • RIMFIRE Herbicide is rainfast 4 hours after application to most weed species. Rainfall within 4 hours may result in reduced weed coiltrol. • • • • • • 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 unaer dry, dusty conditions - especially in the wheel track areas. Do not make more than one application of RIMFIRE Herbicide in one growing season. Do' not apply more than 2.25 ounces/acre of RIMFIRE Herbicide in one growing season. 001 not apply more than 0.053 pOl:lilds of mefehpyr~diethyl per acre per year. Do not apply when wind causes drift to off-site vegetation as injury may occur. Small amounts of RIMFIRE Herbicide via drift or tank contamination can cause severe damage to crops other than wheat. Careful management of spray drift and tank cleanout is required. Wheat may be harvested for forage after 30 days or grain and straw 71 days after a RIM FIRE Herbicide application. Do' not apply RIMFIRE Herbicide in tank mixture with malathion, mancozeb, phosphorodithioate (Di-Syston), or methyl parathion as unacceptable crop phytotoxicity may occur. 10 I ) --(1

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 impos~ible 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 OTHEIR 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 AUTH0RIZED 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, NEGUGENCE, SlRICT UABIUTY OR OTHERVIASE, SHALL NOT EXCEED THE PURCHASE PRICE PAID, OR AT BAYER CROPSCIENCE'S ELECTION, THE REPLACEMENT OF PRODUCT. NET CONTENTS: Bronate Advanced, Huskie and Olympus are trademarks of Bayer. Baythroid, Buctril, Stratego, Sevin, and Silverado are registered trademarks of Bayer. Headline is a registered trademark of BASF Corporation. Ally, Aliy Extra, Affinity Tankmix, Affinity Broadspec, Express, Harmony Extra XP and Harmony are registered trademarks of E., 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. Produced for Efy Bayer CropScience Bayer CropScience LP P.O. Box 12014, 2 T.W. Alexander Drive Research Triangle Park, North Carolina 27709 1-866-99BA YER (1-866-992-2937) RIMFIRETM Herbicide (PENDING) 05/11/10 11 (t -(L