Herbicide label

Omni Brand Paraquat Dichloride

Omni Brand Paraquat Dichloride (EPA 5905-637) is a Group 22 paraquat herbicide labeled for 21 crops. The label lists 44 controlled weeds, plus partial-control, suppression, and partner-control categories.

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Official EPA label (PDF)

“This product is a contact herbicide for control or suppression of a broad spectrum of emerged weeds including most small annual broadleaf and grass weeds.”

— Omni Brand Paraquat Dichloride EPA label, Reg. No. 5905-637

Omni Brand Paraquat Dichloride label facts

Crops on the Omni Brand Paraquat Dichloride label

Omni Brand Paraquat Dichloride is labeled for these 21 crops and uses, per the EPA label.

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Weeds on the Omni Brand Paraquat Dichloride label

The Omni Brand Paraquat Dichloride label names 57 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 control44
  • barley
  • barnyardgrass, common
  • bluegrass, roughstalk
  • Brachiaria
  • brome, downy
  • brome, rescue
  • chickweed
  • cocklebur, common
  • crabgrass
  • dogfennel
  • foxtail
  • foxtail, giant
  • goosegrass
  • groundcherry, cutleaf
  • groundsel, common
  • henbit
  • johnsongrass, seedling
  • knotweed
  • kochia
  • lambsquarters
  • mallow
  • millet, texas
  • morningglory
  • mustard, tansy
  • wild oats
  • panicum, fall
  • pigweed
  • prickly lettuce
  • purslane
  • ragweed, common
  • ragweed, giant
  • red rice
  • rocket, london
  • ryegrass
  • shepherd's-purse
  • sicklepod
  • sida, prickly
  • signalgrass, broadleaf
  • smartweed
  • smartweed, pennsylvania
  • sowthistle
  • starbur, bristly
  • velvetleaf
  • volunteer wheat

Partial control

partial10
  • barnyardgrass, common
  • brome, downy
  • broadleaf weeds, annual
  • broadleaf weeds, perennial
  • cocklebur, common
  • foxtail
  • grass cover crops
  • morningglory
  • ragweed, giant
  • volunteer wheat

Suppression

suppression6
  • grasses, annual
  • perennial weeds
  • sedges
  • weeds, broadleaf
  • weeds, emerged
  • weeds, perennial

Controls with a tank-mix partner

needs partner12
  • bindweed, hedge
  • broadleaf weeds, annual
  • broadleaf weeds, perennial
  • cocklebur, common
  • dandelion
  • morningglory
  • sicklepod
  • sida, prickly
  • smartweed
  • starbur, bristly
  • thistle, canada
  • witchweed

Weed indexes featuring this label

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Omni Brand Paraquat Dichloride rates and plant-back

The label answers both with a table, not a single number. Here is what drives each answer.

Application rate

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Omni Brand Paraquat Dichloride FAQ

What weeds does Omni Brand Paraquat Dichloride control?

The Omni Brand Paraquat Dichloride label names 57 weeds, including barley, common barnyardgrass, roughstalk bluegrass, brachiaria, downy brome, and rescue brome. Control varies by crop, rate, and timing.

What crops is Omni Brand Paraquat Dichloride labeled for?

Omni Brand Paraquat Dichloride is labeled for 21 crops and uses, including field corn, soybeans, wheat, cotton, and sunflower.

What is the active ingredient in Omni Brand Paraquat Dichloride? Is it a generic?

Omni Brand Paraquat Dichloride's active ingredient is paraquat (MOA Group 22). Other products list the same active ingredient; rates, formulations, and labeled crops differ — verify each on its own label.

Can I tank-mix Omni Brand Paraquat Dichloride?

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.