Herbicide label

Volunteer

Volunteer (EPA 66222-60-55467) is a Group 1 clethodim herbicide labeled for 26 crops. The label lists 56 controlled weeds, plus partial-control, suppression, and partner-control categories.

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Official EPA label (PDF)

Volunteer label facts

Crops on the Volunteer label

Volunteer is labeled for these 26 crops and uses, per the EPA label.

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Weeds on the Volunteer label

The Volunteer label names 62 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 control56
  • annual and perennial grasses
  • barley
  • barnyardgrass, common
  • bentgrass
  • bermudagrass
  • bluegrass, annual
  • bluegrass, perennial
  • bluegrass, roughstalk
  • brome, california
  • brome, cheat
  • brome, downy
  • brome, ripgut
  • canarygrass
  • corn, field
  • corn, volunteer
  • crabgrass, hairy
  • crabgrass, large
  • crabgrass, smooth
  • crabgrass, southern
  • crowfootgrass
  • cupgrass, southwestern
  • cupgrass, woolly
  • fescue, tall
  • foxtail barley
  • foxtail, giant
  • foxtail, green
  • foxtail, yellow
  • goosegrass
  • rhizome johnsongrass
  • johnsongrass, seedling
  • junglerice
  • lovegrass (stinkgrass)
  • foxtail, millet
  • millet, wild-proso
  • muhly, wirestem
  • oats
  • orchardgrass
  • panicum, fall
  • panicum, texas
  • quackgrass
  • rabbitsfootgrass
  • red rice
  • rye, volunteer
  • ryegrass, hardy
  • ryegrass, italian
  • sandbur, field
  • shattercane
  • signalgrass, broadleaf
  • sorghum, volunteer grain
  • sprangletop, amazon
  • sprangletop, bearded
  • sprangletop, mexican
  • sprangletop, red
  • volunteer wheat
  • wild oats
  • witchgrass

Partial control

partial3
  • bentgrass
  • bluegrass, perennial
  • quackgrass

Suppression

suppression3
  • corn, volunteer sethoxydim-resistant
  • grasses, annual and perennial
  • tall fescue seedheads

Controls with a tank-mix partner

needs partner7
  • barnyardgrass, common
  • foxtail
  • foxtail millet
  • wild oats
  • millet, wild-proso
  • foxtail, yellow
  • volunteer cereals

Want the control level for your crop, or to filter 1,700+ labels by any of these weeds? Use the free label filter.

Volunteer 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.

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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 cites the exact plant-back for your rotational crop to the label line.

Volunteer FAQ

What weeds does Volunteer control?

The Volunteer label names 62 weeds, including annual and perennial grasses, barley, common barnyardgrass, bentgrass, bermudagrass, and annual bluegrass. Control varies by crop, rate, and timing.

What crops is Volunteer labeled for?

Volunteer is labeled for 26 crops and uses, including field corn, soybeans, cotton, sunflower, and potato.

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

Volunteer's active ingredient is clethodim (MOA Group 1). 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 Volunteer?

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

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Can I tank-mix Volunteer?

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 cites the condition on each, so you can verify it.

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Plan in minutes, not evenings.

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Sources

Last updated 2026-07-10.