Herbicide label

Paraquat 43.2% SL

Paraquat 43.2% SL (EPA 85678-58) is a Group 22 paraquat herbicide labeled for 23 crops. The label lists 34 controlled weeds, plus partial-control, suppression, and partner-control categories.

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Official EPA label (PDF)

Paraquat 43.2% SL label facts

Crops on the Paraquat 43.2% SL label

Paraquat 43.2% SL is labeled for these 23 crops and uses, per the EPA label.

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Weeds on the Paraquat 43.2% SL label

The Paraquat 43.2% SL label names 54 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 control34
  • barley
  • barnyardgrass, common
  • bluegrass, annual
  • brome, downy
  • brome, rescue
  • chickweed
  • crabgrass
  • dogfennel
  • fiddleneck
  • foxtail
  • foxtail, giant
  • goosegrass
  • groundcherry, cutleaf
  • groundsel, common
  • henbit
  • johnsongrass, seedling
  • maids, red
  • millet, texas
  • mustard, tansy
  • wild oats
  • panicum, fall
  • pigweed
  • purslane
  • ragweed, common
  • red rice
  • rocket, london
  • ryegrass
  • shepherd's-purse
  • sicklepod
  • signalgrass, broadleaf
  • sowthistle
  • spikeweed
  • volunteer wheat
  • witchweed

Partial control

partial15
  • cocklebur, common
  • horseweed
  • knotweed
  • kochia
  • lambsquarters
  • prickly lettuce
  • mallow
  • morningglory
  • ragweed, giant
  • sedges
  • sida, prickly
  • smartweed
  • smartweed, pennsylvania
  • starbur, bristly
  • velvetleaf

Suppression

suppression5
  • bindweed, hedge
  • dandelion
  • johnsongrass
  • ryegrass, italian
  • thistle, canada

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Paraquat 43.2% SL 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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Plant-back and rotation

Your interval depends on your application rate, the rotational crop, and your state, region, and rainfall — some intervals differ in AK, AL, AR, AZ, CA, CO, CT, DE, FL, GA, HI, IA, ID, IL, IN, KS, KY, LA, MA, MD, ME, MI, MN, MO, MS, MT, NC, ND, NE, NH, NJ, NM, NV, NY, OH, OK, OR, PA, RI, SC, SD, TN, TX, UT, VA, VT, WA, WI, WV, and WY.

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Paraquat 43.2% SL FAQ

What weeds does Paraquat 43.2% SL control?

The Paraquat 43.2% SL label names 54 weeds, including barley, common barnyardgrass, annual bluegrass, downy brome, rescue brome, and chickweed. Control varies by crop, rate, and timing.

What crops is Paraquat 43.2% SL labeled for?

Paraquat 43.2% SL is labeled for 23 crops and uses, including field corn, soybeans, wheat, cotton, and sunflower.

What is the active ingredient in Paraquat 43.2% SL? Is it a generic?

Paraquat 43.2% SL'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.

What's the plant-back interval after Paraquat 43.2% SL?

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 Paraquat 43.2% SL?

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.