Herbicide label

Bicep Lite II Magnum

Bicep Lite II Magnum (EPA 100-827) is a Group 5 and 15 atrazine and metolachlor herbicide labeled for 4 crops. The label lists 41 controlled weeds, plus partial-control, suppression, and partner-control categories.

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Official EPA label (PDF)

“Bicep Lite II Magnum is a selective herbicide to be used before planting, before or after emergence (see directions) for control of most annual grasses and broadleaf weeds in corn.”

— Bicep Lite II Magnum EPA label, Reg. No. 100-827

Bicep Lite II Magnum label facts

Crops on the Bicep Lite II Magnum label

Bicep Lite II Magnum is labeled for these 4 crops and uses, per the EPA label.

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Weeds on the Bicep Lite II Magnum label

The Bicep Lite II Magnum label names 46 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 control41
  • barnyardgrass, common
  • carpetweed
  • chickweed
  • cocklebur, common
  • crabgrass
  • crowfootgrass
  • cupgrass, prairie
  • cupgrass, southwestern
  • cupgrass, woolly
  • flixweed
  • foxtail, giant
  • foxtail, green
  • foxtail, yellow
  • galinsoga
  • goosegrass
  • henbit
  • jimsonweed
  • johnsongrass, seedling
  • kochia
  • lambsquarters
  • millet, foxtail
  • morningglory
  • mustards
  • nightshades
  • panicum, browntop
  • panicum, fall
  • pigweed
  • purslane, common
  • pusley, florida
  • ragweed, common
  • ragweed, giant
  • red rice
  • sandbur
  • shattercane
  • sicklepod
  • smartweed
  • sorghum, volunteer
  • sunflower
  • velvetleaf
  • waterhemp, common
  • witchgrass

Partial control

partial3
  • nutsedge, yellow
  • sida, prickly
  • signalgrass

Controls with a tank-mix partner

needs partner2
  • millet, wild-proso
  • panicum, texas

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

Bicep Lite II Magnum 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, the rotational crop, and your state, region, and rainfall — some intervals differ in DE, IA, IL, KS, MD, MO, NE, NJ, NY, PA, SD, TX, VA, and WV.

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Bicep Lite II Magnum FAQ

What weeds does Bicep Lite II Magnum control?

The Bicep Lite II Magnum label names 46 weeds, including common barnyardgrass, carpetweed, chickweed, common cocklebur, crabgrass, and crowfootgrass. Control varies by crop, rate, and timing.

What crops is Bicep Lite II Magnum labeled for?

Bicep Lite II Magnum is labeled for 4 crops and uses, including field corn, sorghum, sweet corn, and fallow.

What is the active ingredient in Bicep Lite II Magnum? Is it a generic?

Bicep Lite II Magnum's active ingredient is atrazine and metolachlor (MOA Group 5 and 15). 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 Bicep Lite II Magnum?

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 Bicep Lite II Magnum?

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.