Herbicide label
Brox-M Ultra Herbicide Label
Brox-M Ultra (EPA 42750-103) is a Group 4 and 6 bromoxynil and mcpa herbicide labeled for 8 crops. The label lists 54 controlled weeds, plus partial-control, suppression, and partner-control categories.
Brox-M Ultra label facts
- Product Brox-M Ultra
- EPA Reg. No. 42750-103
- Registrant Albaugh, LLC
- Active ingredient bromoxynil and mcpa
- MOA group 4 and 6
Crops on the Brox-M Ultra label
Brox-M Ultra is labeled for these 8 crops and uses, per the EPA label.
Weeds on the Brox-M Ultra label
The Brox-M Ultra label names 62 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 control54- buckwheat, tartary
- buckwheat, wild
- cockle, cow
- cocklebur, common
- fiddleneck
- jimsonweed
- ladysthumb
- lambsquarters, common
- marshelder
- mustard, black
- mustard, tumble
- mustard, wild
- nightshade, black
- nightshade, cutleaf
- nightshade, eastern black
- nightshade, hairy
- nightshade, silverleaf
- pennycress, field
- pepperweed
- pigweed, redroot
- poppy, horned
- rocket, london
- rocket, yellow
- sage, lanceleaf
- shepherd's-purse
- smartweed, green
- smartweed, pennsylvania
- sowthistle, annual
- sunflower
- tarweed, common
- thistle, russian
- waterhemp, common
- chamomile, corn
- fumitory
- groundsel, common
- gromwell, corn
- henbit
- knawel
- knotweed, prostrate
- kochia
- mayweed
- morningglory, ivyleaf
- morningglory, tall
- mustard, blue
- mustard, tansy
- pigweed, smooth
- pigweed, spiny
- puncturevine
- radish, wild
- ragweed, common
- ragweed, giant
- sesbania, hemp
- tarweed
- velvetleaf
Suppression
suppression1- thistle, canada
Controls with a tank-mix partner
needs partner7- chickweed
- filaree, broadleaf
- wild oats
- foxtail, green
- foxtail, millet
- barnyardgrass, common
- foxtail, yellow
Brox-M Ultra 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.
Brox-M Ultra FAQ
What weeds does Brox-M Ultra control?
The Brox-M Ultra label names 62 weeds, including tartary buckwheat, wild buckwheat, cow cockle, common cocklebur, fiddleneck, and jimsonweed. Control varies by crop, rate, and timing.
What crops is Brox-M Ultra labeled for?
Brox-M Ultra is labeled for 8 crops and uses, including wheat, barley, spring wheat, winter wheat, and oats.
What is the active ingredient in Brox-M Ultra? Is it a generic?
Brox-M Ultra's active ingredient is bromoxynil and mcpa (MOA Group 4 and 6). 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.