Herbicide label

Highcard

Highcard (EPA 66222-289) is a Group 1 quizalofop-p-ethyl 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)

“Highcard® is a systemic herbicide that is rapidly absorbed by treated foliage and translocated to the roots and other growing points of the plant.”

— Highcard EPA label, Reg. No. 66222-289

Highcard label facts

Crops on the Highcard label

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

Need the rate or timing for one of these? Filter every label by your crop, free.

Weeds on the Highcard label

The Highcard 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
  • bermudagrass
  • barnyardgrass, common
  • corn, volunteer
  • crabgrass, large
  • crabgrass, smooth
  • goosegrass
  • rhizome johnsongrass
  • johnsongrass, seedling
  • junglerice
  • panicum, fall
  • panicum, texas
  • red rice
  • shattercane
  • signalgrass, broadleaf
  • sprangletop
  • volunteer rice
  • witchgrass

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

Highcard 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, the rotational crop, and your state or region.

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.

Highcard FAQ

What weeds does Highcard control?

The Highcard label names 17 weeds, including bermudagrass, common barnyardgrass, volunteer corn, large crabgrass, smooth crabgrass, and goosegrass. Control varies by crop, rate, and timing.

What crops is Highcard labeled for?

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

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

Highcard's active ingredient is quizalofop-p-ethyl (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 Highcard?

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 Highcard?

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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Plan in minutes, not hours.

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Sources

Last updated 2026-07-14.