Herbicide label
Perpetuo Herbicide Label
Perpetuo (EPA 59639-242) is a Group 14 and 15 flumiclorac-pentyl and pyroxasulfone herbicide labeled for 3 crops. The label lists 37 controlled weeds, plus partial-control, suppression, and partner-control categories.
Perpetuo label facts
- Product Perpetuo
- EPA Reg. No. 59639-242
- Registrant Valent U. S. A. LLC
- Active ingredient flumiclorac-pentyl and pyroxasulfone
- MOA group 14 and 15
Crops on the Perpetuo label
Perpetuo is labeled for these 3 crops and uses, per the EPA label.
Weeds on the Perpetuo label
The Perpetuo label names 64 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 control37- amaranth, palmer
- amaranth, powell
- barley, little
- barnyardgrass, common
- bluegrass, annual
- canarygrass
- carpetweed
- crabgrass, large
- crabgrass, smooth
- cupgrass, southwestern
- foxtail, bristly
- foxtail, giant
- foxtail, green
- foxtail, yellow
- goosegrass
- johnsongrass
- jimsonweed
- nightshade, black
- nightshade, eastern black
- nightshade, hairy
- panicum, fall
- panicum, texas
- pigweed, prostrate
- pigweed, redroot
- pigweed, smooth
- pigweed, tumble
- sida, prickly
- purslane, common
- pusley, florida
- red rice
- ryegrass, italian
- ryegrass, rigid
- signalgrass, broadleaf
- spurge, spotted
- velvetleaf
- waterhemp, common
- witchgrass
Suppression
suppression24- brome, downy
- brome, japanese
- buckwheat, wild
- cheat
- chickweed, common
- cocklebur, common
- cupgrass, woolly
- fleabane, hairy
- groundsel, common
- henbit
- horseweed
- kochia
- lambsquarters
- lambsquarters, common
- millet, wild-proso
- morningglory, entireleaf
- morningglory, ivyleaf
- morningglory, pitted
- nutsedge, yellow
- wild oats
- ragweed, common
- sandbur, longspine
- shattercane
- orach, spreading
Controls with a tank-mix partner
needs partner3- carolina geranium
- evening-primrose, cutleaf
- smartweed
Perpetuo 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.
Perpetuo FAQ
What weeds does Perpetuo control?
The Perpetuo label names 64 weeds, including palmer amaranth, powell amaranth, little barley, common barnyardgrass, annual bluegrass, and canarygrass. Control varies by crop, rate, and timing.
What crops is Perpetuo labeled for?
Perpetuo is labeled for 3 crops and uses, including field corn, soybeans, and seed corn.
What is the active ingredient in Perpetuo? Is it a generic?
Perpetuo's active ingredient is flumiclorac-pentyl 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.