Rimfire MAX

Registered until
Registration number
Active materials

EPA # 0000264-01099-AA-0000000
States Registered: MN MT ND SD WI WY

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 contaminate water, food, or feed by storage and disposal.

Store in a cool, dry place.

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.

RIMFIRE Max Herbicide may be used on winter and spring wheat, including durum.

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.

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.

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.

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.

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.

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.

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.

Registered for culturesRatePreharvest Interval
Winter wheat3 oz71
Spring wheat3 oz71