Herbicide label

Arrow 2EC

Arrow 2EC (EPA 66222-60) is a Group 1 clethodim herbicide labeled for 26 crops. The label lists 54 controlled weeds, plus partial-control, suppression, and partner-control categories.

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Official EPA label (PDF)

“Arrow 2EC is a selective postemergence herbicide for control of annual and perennial grasses.”

— Arrow 2EC EPA label, Reg. No. 66222-60

Arrow 2EC label facts

Crops on the Arrow 2EC label

Arrow 2EC is labeled for these 26 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 Arrow 2EC label

The Arrow 2EC label names 55 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 control54
  • foxtail barley
  • barley
  • barnyardgrass, common
  • bentgrass
  • bermudagrass
  • bluegrass, annual
  • bluegrass, kentucky
  • bluegrass, roughstalk
  • brome, california
  • brome, downy
  • brome, ripgut
  • canarygrass
  • cheat
  • corn, volunteer
  • crabgrass, hairy
  • crabgrass, large
  • crabgrass, smooth
  • crabgrass, southern
  • crowfootgrass
  • cupgrass, southwestern
  • cupgrass, woolly
  • fescue, tall
  • foxtail, giant
  • foxtail, green
  • foxtail, yellow
  • goosegrass
  • rhizome johnsongrass
  • johnsongrass, seedling
  • junglerice
  • millet, foxtail
  • millet, wild-proso
  • muhly, wirestem
  • oats
  • wild 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
  • stinkgrass
  • volunteer wheat
  • witchgrass

Suppression

suppression1
  • corn, volunteer sethoxydim-resistant

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Arrow 2EC 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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Arrow 2EC FAQ

What weeds does Arrow 2EC control?

The Arrow 2EC label names 55 weeds, including foxtail barley, barley, common barnyardgrass, bentgrass, bermudagrass, and annual bluegrass. Control varies by crop, rate, and timing.

What crops is Arrow 2EC labeled for?

Arrow 2EC is labeled for 26 crops and uses, including field corn, soybeans, cotton, sunflower, and potato.

What is the active ingredient in Arrow 2EC? Is it a generic?

Arrow 2EC'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.

Can I tank-mix Arrow 2EC?

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.