Herbicide label
Rimfire Herbicide Label
Rimfire (EPA 264-847) 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 Herbicide is absorbed by foliage and roots of weeds and offers contact and residual weed control.”
Rimfire label facts
- Product Rimfire
- EPA Reg. No. 264-847
- Registrant Bayer CropScience, LLC
- Active ingredient mesosulfuron-methyl and propoxycarbazone
- MOA group 2
Crops on the Rimfire label
Rimfire is labeled for these 4 crops and uses, per the EPA label.
Weeds on the Rimfire label
The Rimfire 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
- cheat
- foxtail barley
- foxtail, green
- brome, japanese
- mustard, black
- mustard, blue
- volunteer canola
- foxtail, yellow
- rocket, london
- mustard, tansy
- mustard, tumble
- beet, wild
- mustard, wild
- wild oats
- radish, wild
- turnip, wild
Partial control
partial17- brome, downy
- barley, little
- darnel, persian
- quackgrass
- bromegrass, smooth
- bedstraw, catchweed
- chickweed, common
- cornflower
- dogfennel
- pennycress, field
- henbit
- speedwell
- chickweed, mouseear
- clover, red
- pigweed, redroot
- shepherd's-purse
- swinecress
Controls with a tank-mix partner
needs partner1- darnel, persian
Rimfire 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 FAQ
What weeds does Rimfire control?
The Rimfire label names 34 weeds, including common barnyardgrass, cheat, foxtail barley, green foxtail, japanese brome, and black mustard. Control varies by crop, rate, and timing.
What crops is Rimfire labeled for?
Rimfire is labeled for 4 crops and uses, including wheat, spring wheat, winter wheat, and durum wheat.
What is the active ingredient in Rimfire? Is it a generic?
Rimfire'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.