Herbicide label

Threesidual Herbicide Label

Threesidual (EPA 62719-679-1381) is a Group 2, 4, and 15 acetochlor, clopyralid, and flumetsulam herbicide labeled for 2 crops. The label lists 64 controlled weeds, plus partial-control, suppression, and partner-control categories.

“Threesidual is a preemergence herbicide for which spray adjuvants have little or no influence on performance.”

— Threesidual EPA label, Reg. No. 62719-679-1381

Threesidual label facts

Crops on the Threesidual label

Threesidual is labeled for these 2 crops and uses, per the EPA label.

Weeds on the Threesidual label

The Threesidual 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 control64
  • barnyardgrass, common
  • crabgrass
  • crowfootgrass
  • cupgrass, prairie
  • cupgrass, southwestern
  • cupgrass, woolly
  • foxtail, bristly
  • foxtail, giant
  • foxtail, green
  • foxtail, robust (purple, white)
  • foxtail, yellow
  • goosegrass
  • johnsongrass, seedling
  • foxtail, millet
  • millet, wild-proso
  • nutsedge, yellow
  • panicum, browntop
  • panicum, fall
  • panicum, texas
  • red rice
  • sandbur, field
  • shattercane
  • signalgrass, broadleaf
  • sprangletop, red
  • witchgrass
  • amaranth, palmer
  • beggarweed, florida
  • buckwheat, wild
  • carpetweed
  • chickweed, common
  • clover, red
  • cocklebur, common
  • galinsoga
  • henbit
  • horseweed
  • jimsonweed
  • kochia
  • ladysthumb
  • lambsquarters, common
  • mallow, venice
  • morningglory, ivyleaf
  • morningglory, tall
  • mustard, wild
  • nightshade, black
  • pigweed, redroot
  • pigweed, smooth
  • poinsettia, wild
  • puncturevine
  • purslane, common
  • pusley, florida
  • ragweed, common
  • ragweed, giant
  • shepherd's-purse
  • sicklepod
  • sida, prickly
  • smartweed, pennsylvania
  • spurge, nodding
  • spurge, prostrate
  • spurge, spotted
  • sunflower, annual
  • thistle, canada
  • velvetleaf
  • waterhemp, common
  • wormwood, biennial

Threesidual 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.

Threesidual FAQ

What weeds does Threesidual control?

The Threesidual label names 64 weeds, including common barnyardgrass, crabgrass, crowfootgrass, prairie cupgrass, southwestern cupgrass, and woolly cupgrass. Control varies by crop, rate, and timing.

What crops is Threesidual labeled for?

Threesidual is labeled for 2 crops and uses, including field corn and corn silage.

What is the active ingredient in Threesidual? Is it a generic?

Threesidual's active ingredient is acetochlor, clopyralid, and flumetsulam (MOA Group 2, 4, 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.