Herbicide label

Stalwart 2W

Stalwart 2W (EPA 60063-63) is a Group 15 and 27 mesotrione and metolachlor herbicide labeled for 5 crops. The label lists 43 controlled weeds, plus partial-control, suppression, and partner-control categories.

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Official EPA label (PDF)

Stalwart 2W label facts

Crops on the Stalwart 2W label

Stalwart 2W is labeled for these 5 crops and uses, per the EPA label.

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Weeds on the Stalwart 2W label

The Stalwart 2W label names 56 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 control43
  • amaranth, palmer
  • amaranth, powell
  • barnyardgrass, common
  • buffalobur
  • carpetweed
  • cocklebur, common
  • crowfootgrass
  • cupgrass, prairie
  • cupgrass, southwestern
  • foxtail, giant
  • foxtail, green
  • foxtail, robust
  • foxtail, yellow
  • galinsoga
  • goosegrass
  • hemp
  • horsenettle
  • horseweed
  • jimsonweed
  • lambsquarters, common
  • foxtail, millet
  • mustard, wild
  • nightshade, black
  • nightshade, eastern black
  • nightshade, hairy
  • nutsedge, yellow
  • panicum, browntop
  • panicum, fall
  • pigweed, redroot
  • pigweed, smooth
  • pokeweed, common
  • potatoes, volunteer
  • purslane, common
  • pusley, florida
  • ragweed, common
  • ragweed, giant
  • red rice
  • smartweed, ladysthumb
  • smartweed, pennsylvania
  • sprangletop, red
  • velvetleaf
  • waterhemp, common
  • witchgrass

Suppression

suppression18
  • cocklebur, common
  • cupgrass, woolly
  • dandelion
  • johnsongrass, seedling
  • kochia
  • millet, wild-proso
  • morningglory, entireleaf
  • morningglory, ivyleaf
  • nutsedge, yellow
  • panicum, texas
  • purslane, common
  • ragweed, common
  • ragweed, giant
  • sandbur, field
  • shattercane
  • sida, prickly
  • signalgrass, broadleaf
  • thistle, canada

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Stalwart 2W 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.

Stalwart 2W FAQ

What weeds does Stalwart 2W control?

The Stalwart 2W label names 56 weeds, including palmer amaranth, powell amaranth, common barnyardgrass, buffalobur, carpetweed, and common cocklebur. Control varies by crop, rate, and timing.

What crops is Stalwart 2W labeled for?

Stalwart 2W is labeled for 5 crops and uses, including field corn, sorghum, seed corn, sweet corn, and popcorn.

What is the active ingredient in Stalwart 2W? Is it a generic?

Stalwart 2W's active ingredient is mesotrione and metolachlor (MOA Group 15 and 27). 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 Stalwart 2W?

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 Stalwart 2W?

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.