Herbicide label
Authority Elite Herbicide Label
Authority Elite (EPA 279-3442) is a Group 14 and 15 metolachlor and sulfentrazone herbicide labeled for 5 crops. The label lists 43 controlled weeds, plus partial-control, suppression, and partner-control categories.
Authority Elite label facts
- Product Authority Elite
- EPA Reg. No. 279-3442
- Registrant FMC Corporation
- Active ingredient metolachlor and sulfentrazone
- MOA group 14 and 15
Crops on the Authority Elite label
Authority Elite is labeled for these 5 crops and uses, per the EPA label.
Weeds on the Authority Elite label
The Authority Elite label names 46 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 control43- amaranth, palmer
- barnyardgrass, common
- foxtail, giant
- foxtail, green
- foxtail, yellow
- kochia
- lambsquarters, common
- morningglory, ivyleaf
- morningglory, tall
- nightshade, black
- nightshade, eastern black
- panicum, fall
- pigweed, redroot
- pigweed, smooth
- thistle, russian
- waterhemp, common
- witchgrass
- amaranth, spiny
- amaranth, spleen
- copperleaf, hophornbeam
- crabgrass
- crowfootgrass
- cupgrass, prairie
- cupgrass, southwestern
- dayflower, benghal
- foxtail, bristly
- foxtail, robust
- galinsoga, hairy
- goosegrass
- groundcherry, cutleaf
- morningglory, entireleaf
- morningglory, palmleaf
- morningglory, pitted
- morningglory, purple
- morningglory, red
- morningglory, scarlet
- morningglory, smallflower
- panicum, texas
- pusley, florida
- sida, prickly
- signalgrass, broadleaf
- smartweed, pennsylvania
- star of bethlehem
Suppression
suppression3- nutsedge, purple
- nutsedge, yellow
- sedge, annual
Authority Elite 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 Elite FAQ
What weeds does Authority Elite control?
The Authority Elite label names 46 weeds, including palmer amaranth, common barnyardgrass, giant foxtail, green foxtail, yellow foxtail, and kochia. Control varies by crop, rate, and timing.
What crops is Authority Elite labeled for?
Authority Elite is labeled for 5 crops and uses, including soybeans, sunflower, field pea, chickpea, and cowpea.
What is the active ingredient in Authority Elite? Is it a generic?
Authority Elite's active ingredient is metolachlor and sulfentrazone (MOA Group 14 and 15). 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.