Herbicide label
Fierce XLT Herbicide Label
Fierce XLT (EPA 59639-194) is a Group 2, 14, and 15 chlorimuron, flumioxazin, and pyroxasulfone herbicide labeled for 1 crops. The label lists 67 controlled weeds, plus partial-control, suppression, and partner-control categories.
Fierce XLT label facts
- Product Fierce XLT
- EPA Reg. No. 59639-194
- Registrant Valent U. S. A. LLC
- Active ingredient chlorimuron, flumioxazin, and pyroxasulfone
- MOA group 2, 14, and 15
Crops on the Fierce XLT label
Fierce XLT is labeled for these 1 crops and uses, per the EPA label.
Weeds on the Fierce XLT label
The Fierce XLT label names 74 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 control67- carpetweed
- chickweed, common
- chickweed, mouseear
- dandelion
- eclipta
- eveningprimrose, cutleaf
- pusley, florida
- sesbania, hemp
- henbit
- jimsonweed
- kochia
- lambsquarters, common
- mallow, little
- horseweed
- morningglory, entireleaf
- morningglory, ivyleaf
- morningglory, red
- morningglory, scarlet
- morningglory, smallflower
- morningglory, tall
- mustard, wild
- nightshade, black
- nightshade, eastern black
- nightshade, hairy
- amaranth, palmer
- pigweed, redroot
- pigweed, smooth
- amaranth, spiny
- pigweed, tumble
- sida, prickly
- puncturevine
- purslane, common
- radish, wild
- ragweed, common
- redmaids
- thistle, russian
- shepherd's-purse
- spurge, spotted
- anoda, spurred
- croton, tropic
- velvetleaf
- mallow, venice
- waterhemp, common
- poinsettia, wild
- barnyardgrass, common
- bluegrass, annual
- cheat
- crabgrass, large
- crabgrass, smooth
- cupgrass, southwestern
- brome, downy
- foxtail, giant
- foxtail, green
- foxtail, yellow
- goosegrass
- johnsongrass, seedling
- lovegrass, california
- panicum, fall
- panicum, texas
- red rice
- ryegrass, italian
- ryegrass, rigid
- signalgrass, broadleaf
- senna, coffee
- beggarweed, florida
- crownbeard, golden
- indigo, hairy
Suppression
suppression7- starbur, bristly
- copperleaf, hophornbeam
- ragweed, giant
- smartweed, ladysthumb
- smartweed, pennsylvania
- buckwheat, wild
- wormwood, biennial
Fierce XLT 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 XLT FAQ
What weeds does Fierce XLT control?
The Fierce XLT label names 74 weeds, including carpetweed, common chickweed, mouseear chickweed, dandelion, eclipta, and cutleaf eveningprimrose. Control varies by crop, rate, and timing.
What crops is Fierce XLT labeled for?
Fierce XLT is labeled for 1 crops and uses, including soybeans.
What is the active ingredient in Fierce XLT? Is it a generic?
Fierce XLT's active ingredient is chlorimuron, flumioxazin, and pyroxasulfone (MOA Group 2, 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.