Herbicide label

Diuron 4L

Diuron 4L (EPA 19713-36) is a Group 5 diuron herbicide labeled for 15 crops. The label lists 55 controlled weeds, plus partial-control, suppression, and partner-control categories.

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Official EPA label (PDF)

Diuron 4L label facts

Crops on the Diuron 4L label

Diuron 4L is labeled for these 15 crops and uses, per the EPA label.

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Weeds on the Diuron 4L label

The Diuron 4L label names 65 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 control55
  • ageratum
  • barnyardgrass, common
  • bluegrass, annual
  • buckwheat, wild
  • chickweed
  • clover, mexican
  • crabgrass
  • crowfoot
  • dayflower
  • dogfennel
  • fiddleneck
  • foxtail
  • goosegrass
  • gromwell
  • groundcherry, annual
  • hawksbeard
  • horseweed
  • johnsongrass, seedling
  • knawel
  • kyllinga
  • lambsquarters
  • lettuce, wild
  • lovegrass, annual
  • marigold
  • morning glory, annual
  • mustard, wild
  • orchardgrass
  • paintbrush, flora's
  • panicum
  • pennycress, field
  • peppergrass
  • pigweed
  • pineapple-weed
  • pokeweed, common
  • purslane
  • rabbit tobacco
  • radish, wild
  • ragweed, giant
  • rattail fescue
  • ricegrass
  • ryegrass, annual
  • ryegrass, volunteer
  • sandbur
  • shepherd's-purse
  • smartweed, annual
  • sowthistle, annual
  • spanishneedles
  • speedwell, corn
  • sprangletop, red
  • spurry, corn
  • tansymustard
  • velvetgrass
  • velvetleaf
  • vernalgrass, sweet annual
  • windgrass, common

Partial control

partial9
  • cocklebur, common
  • guineagrass
  • horsenettle
  • maidencane
  • pangolagrass
  • quackgrass
  • sesbania
  • sicklepod
  • sida, prickly

Suppression

suppression1
  • rattail fescue

Controls with a tank-mix partner

needs partner1
  • nutsedge

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Diuron 4L 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.

Get the rate for your field: build a program and FieldMarshal cites the exact per-acre rate for your crop to the label line.

Plant-back and rotation

Your interval depends on your application rate, the rotational crop, and your state, region, and rainfall — some intervals differ in AR, AZ, CA, CO, FL, HI, ID, KS, LA, MS, NM, NV, OK, OR, TN, TX, and WA.

Get the interval for your rotation: build a program and FieldMarshal cites the exact plant-back for your rotational crop to the label line.

Diuron 4L FAQ

What weeds does Diuron 4L control?

The Diuron 4L label names 65 weeds, including ageratum, common barnyardgrass, annual bluegrass, wild buckwheat, chickweed, and mexican clover. Control varies by crop, rate, and timing.

What crops is Diuron 4L labeled for?

Diuron 4L is labeled for 15 crops and uses, including field corn, wheat, cotton, barley, and sorghum.

What is the active ingredient in Diuron 4L? Is it a generic?

Diuron 4L's active ingredient is diuron (MOA Group 5). 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 Diuron 4L?

It depends on your rotational crop, application rate, and region, so the label gives a table, not one number. Build a program and FieldMarshal cites the exact interval for your rotation to the label line, so you can verify it.

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Can I tank-mix Diuron 4L?

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 cites the condition on each, so you can verify it.

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Sources

Last updated 2026-07-11.