Herbicide label

Trisidual

Trisidual (EPA 524-614-1381) is a Group 2, 4, and 15 acetochlor, clopyralid, and flumetsulam herbicide labeled for 3 crops. The label lists 64 controlled weeds, plus partial-control, suppression, and partner-control categories.

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Official EPA label (PDF)

Trisidual label facts

Crops on the Trisidual label

Trisidual is labeled for these 3 crops and uses, per the EPA label.

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Weeds on the Trisidual label

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

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Trisidual 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 and your soil texture.

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.

Trisidual FAQ

What weeds does Trisidual control?

The Trisidual label names 64 weeds, including palmer amaranth, common barnyardgrass, florida beggarweed, wild buckwheat, carpetweed, and common chickweed. Control varies by crop, rate, and timing.

What crops is Trisidual labeled for?

Trisidual is labeled for 3 crops and uses, including field corn, corn silage, and seed corn.

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

Trisidual'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.

What's the plant-back interval after Trisidual?

It depends on your rotational crop, application rate, and region, so the label gives a table, not one number. Build a program and FieldMarshal gives you the exact interval for your rotation from the label line, so you can verify it.

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Can I tank-mix Trisidual?

It depends on your target weeds, crop stage, and which partners the label approves. Build a program and FieldMarshal checks the label for approved partners and gives the condition on each, so you can verify it.

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Sources

Last updated 2026-07-14.