Herbicide label

Whiplash

Whiplash (EPA 91234-46) is a Group 4 clopyralid and fluroxypyr 1-methylheptyl ester herbicide labeled for 7 crops. The label lists 61 controlled weeds, plus partial-control, suppression, and partner-control categories.

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Official EPA label (PDF)

Whiplash label facts

Crops on the Whiplash label

Whiplash is labeled for these 7 crops and uses, per the EPA label.

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Weeds on the Whiplash label

The Whiplash label names 71 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 control61
  • alfalfa
  • jerusalem artichoke
  • bean, volunteer
  • bedstraw, catchweed
  • black medic
  • buckwheat, wild
  • burdock
  • chamomile, false
  • mayweed, chamomile
  • chickweed
  • clover, hop
  • clover, red
  • sweetclover
  • clover, white
  • cocklebur, common
  • coffeeweed
  • cornflower
  • daisy, oxeye
  • dandelion
  • dock, curly
  • dogbane, hemp
  • volunteer flax
  • galinsoga
  • grape
  • groundsel, common
  • hawksbeard, narrowleaf
  • hawkweed, orange
  • hawkweed, yellow
  • horseweed
  • jimsonweed
  • kochia
  • lentil, volunteer
  • prickly lettuce
  • locoweed, lambert
  • locoweed, white
  • mallow, venice
  • marshelder
  • morningglory
  • nightshade, black
  • nightshade, cutleaf
  • nightshade, eastern black
  • nightshade, hairy
  • pea, volunteer
  • potato, volunteer
  • puncturevine
  • purslane, common
  • ragweed, common
  • ragweed, giant
  • salsify, meadow
  • sicklepod
  • sorrel, red
  • sowthistle, annual
  • starthistle, yellow
  • sunflower
  • teasel, common
  • thistle, bull
  • thistle, canada
  • thistle, musk
  • velvetleaf
  • vetch
  • wormwood, biennial

Suppression

suppression11
  • alfalfa
  • bindweed, field
  • buffalobur
  • volunteer canola
  • horsetail, field
  • knapweed, russian
  • knotweed
  • ladysthumb
  • mallow, common
  • pineapple-weed
  • smartweed, green

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

Whiplash 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 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.

Whiplash FAQ

What weeds does Whiplash control?

The Whiplash label names 71 weeds, including alfalfa, jerusalem artichoke, volunteer bean, catchweed bedstraw, black medic, and wild buckwheat. Control varies by crop, rate, and timing.

What crops is Whiplash labeled for?

Whiplash is labeled for 7 crops and uses, including field corn, wheat, barley, oats, and grass seed.

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

Whiplash's active ingredient is clopyralid and fluroxypyr 1-methylheptyl ester (MOA Group 4). 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 Whiplash?

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 Whiplash?

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.