Herbicide label

Broadhead

Broadhead (EPA 279-3366) is a Group 4 and 14 carfentrazone-ethyl and quinclorac herbicide labeled for 1 crops. The label lists 17 controlled weeds, plus partial-control, suppression, and partner-control categories.

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Official EPA label (PDF)

Broadhead label facts

Crops on the Broadhead label

Broadhead is labeled for these 1 crops and uses, per the EPA label.

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Weeds on the Broadhead label

The Broadhead label names 17 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 control17
  • barnyardgrass, common
  • cocklebur, common
  • copperleaf, hophornbeam
  • crabgrass, large
  • dayflower, spreading
  • eclipta
  • groundcherry, cutleaf
  • jointvetch
  • junglerice
  • morningglory
  • pigweed
  • purslane, common
  • redweed
  • sesbania, hemp
  • signalgrass, broadleaf
  • smartweed, pennsylvania
  • water hyssop

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Broadhead 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.

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Plant-back and rotation

Your interval depends on your application rate and the rotational crop.

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Broadhead FAQ

What weeds does Broadhead control?

The Broadhead label names 17 weeds, including common barnyardgrass, common cocklebur, hophornbeam copperleaf, large crabgrass, spreading dayflower, and eclipta. Control varies by crop, rate, and timing.

What crops is Broadhead labeled for?

Broadhead is labeled for 1 crops and uses, including rice.

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

Broadhead's active ingredient is carfentrazone-ethyl and quinclorac (MOA Group 4 and 14). 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 Broadhead?

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 Broadhead?

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.