Herbicide label
Authority Maxx Herbicide Label
Authority Maxx (EPA 279-9560) is a Group 2 and 14 chlorimuron and sulfentrazone herbicide labeled for 1 crops. The label lists 33 controlled weeds, plus partial-control, suppression, and partner-control categories.
Authority Maxx label facts
- Product Authority Maxx
- EPA Reg. No. 279-9560
- Registrant FMC Corporation
- Active ingredient chlorimuron and sulfentrazone
- MOA group 2 and 14
Crops on the Authority Maxx label
Authority Maxx is labeled for these 1 crops and uses, per the EPA label.
Weeds on the Authority Maxx label
The Authority Maxx label names 59 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 control33- amaranth, palmer
- amaranth, spiny
- beggarweed, florida
- carpetweed
- copperleaf, hophornbeam
- copperleaf, virginia
- jimsonweed
- kochia
- lambsquarters
- mallow, venice
- morning glory, annual
- morningglory, entireleaf
- morningglory, ivyleaf
- morningglory, smallflower
- morningglory, tall
- mustard, wild
- nightshade, black
- nightshade, eastern black
- nightshade, hairy
- nutsedge, purple
- nutsedge, yellow
- pigweed, redroot
- pigweed, smooth
- poinsettia, wild
- purslane, common
- senna, coffee
- sida, prickly
- smartweed, annual
- spurge, spotted
- star of bethlehem
- thistle, russian
- velvetleaf
- waterhemp, common
Partial control
partial18- barnyardgrass, common
- burcucumber
- cocklebur, common
- crabgrass
- foxtail
- goosegrass
- johnsongrass, seedling
- horseweed
- mexicanweed
- morningglory, pitted
- panicum, fall
- panicum, texas
- ragweed, common
- ragweed, giant
- sesbania, hemp
- sicklepod
- signalgrass, broadleaf
- sunflower, wild
Controls with a tank-mix partner
needs partner12- chickweed
- dandelion
- garlic, wild
- henbit
- prickly lettuce
- horseweed
- mustard, tansy
- pennycress, field
- ragweed, common
- ragweed, giant
- shepherd's-purse
- sunflower, wild
Authority Maxx 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.
Authority Maxx FAQ
What weeds does Authority Maxx control?
The Authority Maxx label names 59 weeds, including palmer amaranth, spiny amaranth, florida beggarweed, carpetweed, hophornbeam copperleaf, and virginia copperleaf. Control varies by crop, rate, and timing.
What crops is Authority Maxx labeled for?
Authority Maxx is labeled for 1 crops and uses, including soybeans.
What is the active ingredient in Authority Maxx? Is it a generic?
Authority Maxx's active ingredient is chlorimuron and sulfentrazone (MOA Group 2 and 14). 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.