Herbicide label

RIMFIRE Max Herbicide Label

RIMFIRE Max (EPA 264-1099) is a Group 2 mesosulfuron-methyl and propoxycarbazone herbicide labeled for 4 crops. The label lists 17 controlled weeds, plus partial-control, suppression, and partner-control categories.

“RIMFIRE Max Herbicide is absorbed by foliage and roots of weeds and offers contact and residual weed control.”

— RIMFIRE Max EPA label, Reg. No. 264-1099

RIMFIRE Max label facts

Crops on the RIMFIRE Max label

RIMFIRE Max is labeled for these 4 crops and uses, per the EPA label.

Weeds on the RIMFIRE Max label

The RIMFIRE Max label names 34 weeds and rates each by how the product handles it: full control, partial control, suppression, or control with a tank-mix partner. A weed can fall at more than one level, because control varies by crop, rate, and timing.

Controls

full control17
  • barnyardgrass, common
  • volunteer canola
  • cheat
  • foxtail barley
  • foxtail, green
  • foxtail, yellow
  • mustard, black
  • mustard, blue
  • mustard, tansy
  • mustard, tumble
  • mustard, wild
  • wild oats
  • radish, wild
  • rocket, london
  • turnip, wild
  • beet, wild
  • brome, japanese

Partial control

partial17
  • barley, little
  • bedstraw, catchweed
  • brome, downy
  • bromegrass, smooth
  • chickweed, common
  • chickweed, mouseear
  • clover, red
  • cornflower
  • darnel, persian
  • dogfennel
  • henbit
  • pennycress, field
  • pigweed, redroot
  • quackgrass
  • shepherd's-purse
  • speedwell
  • swinecress

RIMFIRE Max rates and plant-back

The label answers both with a table, not a single number. Here is what drives each answer.

Application rate

Your rate depends on your crop.

Get the rate for your field: build a program and FieldMarshal gives you the exact per-acre rate for your crop from the label line.

Plant-back and rotation

Your interval depends on your application rate and the rotational crop.

Get the interval for your rotation: build a program and FieldMarshal gives you the exact plant-back for your rotational crop from the label line.

RIMFIRE Max FAQ

What weeds does RIMFIRE Max control?

The RIMFIRE Max label names 34 weeds, including common barnyardgrass, volunteer canola, cheat, foxtail barley, green foxtail, and yellow foxtail. Control varies by crop, rate, and timing.

What crops is RIMFIRE Max labeled for?

RIMFIRE Max is labeled for 4 crops and uses, including wheat, winter wheat, spring wheat, and durum wheat.

What is the active ingredient in RIMFIRE Max? Is it a generic?

RIMFIRE Max's active ingredient is mesosulfuron-methyl and propoxycarbazone (MOA Group 2). Other products list the same active ingredient; rates, formulations, and labeled crops differ — verify each on its own label.

Sources

Last updated 2026-09-30.