Herbicide label
Fierce EZ Herbicide Label
Fierce EZ (EPA 59639-237) is a Group 14 and 15 flumioxazin and pyroxasulfone herbicide labeled for 7 crops. The label lists 68 controlled weeds, plus partial-control, suppression, and partner-control categories.
Fierce EZ label facts
- Product Fierce EZ
- EPA Reg. No. 59639-237
- Registrant Valent U. S. A. LLC
- Active ingredient flumioxazin and pyroxasulfone
- MOA group 14 and 15
Crops on the Fierce EZ label
Fierce EZ is labeled for these 7 crops and uses, per the EPA label.
Weeds on the Fierce EZ label
The Fierce EZ label names 82 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 control68- amaranth, palmer
- amaranth, spiny
- anoda, spurred
- barnyardgrass, common
- beggarweed, florida
- bluegrass, annual
- bluegrass, roughstalk
- brome, downy
- carpetweed
- cheat
- chickweed, common
- chickweed, mouseear
- crabgrass, large
- crabgrass, smooth
- crownbeard, golden
- croton, tropic
- cupgrass, southwestern
- dandelion
- eclipta
- eveningprimrose, cutleaf
- rattail fescue
- foxtail, giant
- foxtail, green
- foxtail, yellow
- goosegrass
- henbit
- horseweed
- indigo, hairy
- jimsonweed
- johnsongrass, seedling
- kochia
- lambsquarters, common
- lovegrass, california
- mallow, little
- mallow, venice
- morningglory, entireleaf
- morningglory, ivyleaf
- morningglory, scarlet
- morningglory, smallflower
- morningglory, tall
- mustard, wild
- nightshade, black
- nightshade, eastern black
- nightshade, hairy
- panicum, fall
- panicum, texas
- pigweed, redroot
- pigweed, smooth
- pigweed, tumble
- poinsettia, wild
- puncturevine
- purslane, common
- pusley, florida
- radish, wild
- ragweed, common
- redmaids
- red rice
- ryegrass, italian
- ryegrass, rigid
- senna, coffee
- sesbania, hemp
- shepherd's-purse
- sida, prickly
- signalgrass, broadleaf
- spurge, spotted
- thistle, russian
- velvetleaf
- waterhemp, common
Suppression
suppression7- buckwheat, wild
- copperleaf, hophornbeam
- ragweed, giant
- smartweed, ladysthumb
- smartweed, pennsylvania
- starbur, bristly
- wormwood, biennial
Controls with a tank-mix partner
needs partner7- bindweed, field
- cocklebur, common
- flatsedge, rice
- morningglory, pitted
- plantain, broadleaf
- sicklepod
- smartweed, pale
Fierce EZ 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.
Fierce EZ FAQ
What weeds does Fierce EZ control?
The Fierce EZ label names 82 weeds, including palmer amaranth, spiny amaranth, spurred anoda, common barnyardgrass, florida beggarweed, and annual bluegrass. Control varies by crop, rate, and timing.
What crops is Fierce EZ labeled for?
Fierce EZ is labeled for 7 crops and uses, including field corn, soybeans, wheat, cotton, and grass seed.
What is the active ingredient in Fierce EZ? Is it a generic?
Fierce EZ's active ingredient is flumioxazin and pyroxasulfone (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.