Herbicide label
Diuron 4L Herbicide Label
Diuron 4L (EPA 66222-54) is a Group 5 diuron herbicide labeled for 14 crops. The label lists 58 controlled weeds, plus partial-control, suppression, and partner-control categories.
Diuron 4L label facts
- Product Diuron 4L
- EPA Reg. No. 66222-54
- Registrant Makhteshim Agan of North America, Inc. d/b/a ADAMA
- Active ingredient diuron
- MOA group 5
Crops on the Diuron 4L label
Diuron 4L is labeled for these 14 crops and uses, per the EPA label.
Weeds on the Diuron 4L label
The Diuron 4L label names 69 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 control58- ageratum
- barnyardgrass, common
- buckwheat, wild
- clover, mexican
- crabgrass
- crotalaria, showy
- crowfoot
- dayflower
- dogfennel
- foxtail
- goosegrass
- gromwell
- groundcherry, annual
- horseweed
- johnsongrass, seedling
- knawel
- kochia
- kyllinga
- lettuce, wild
- lovegrass, annual
- marigold
- morningglory
- morning glory, annual
- orchardgrass
- paintbrush, flora's
- panicum
- panicum, fall
- pennycress, field
- peppergrass
- pineapple-weed
- pokeweed, common
- purslane
- radish, wild
- ragweed, giant
- rabbit tobacco
- ricegrass
- sandbur
- smartweed, annual
- sourgrass
- sowthistle, annual
- needles, spanish
- speedwell, corn
- sprangletop, red
- spurry, corn
- tansymustard
- velvetleaf
- vernalgrass, sweet, annual
- bluegrass, annual
- chickweed
- rattail fescue
- hawksbeard
- velvetgrass
- fiddleneck
- lambsquarters
- mustard, wild
- pigweed
- shepherd's-purse
- ryegrass, annual
Partial control
partial9- cocklebur, common
- guineagrass
- horsenettle
- maidencane
- pangolagrass
- quackgrass
- sesbania
- sicklepod
- sida, prickly
Suppression
suppression1- windgrass, common
Controls with a tank-mix partner
needs partner1- nutsedge
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.
Get the rate for your field: build a program and FieldMarshal gives you the exact per-acre rate for your crop from the label line.
Plant-back and rotation
Your interval depends on your application rate and the rotational crop.
Get the interval for your rotation: build a program and FieldMarshal gives you the exact plant-back for your rotational crop from the label line.
Diuron 4L FAQ
What weeds does Diuron 4L control?
The Diuron 4L label names 69 weeds, including ageratum, common barnyardgrass, wild buckwheat, mexican clover, crabgrass, and showy crotalaria. Control varies by crop, rate, and timing.
What crops is Diuron 4L labeled for?
Diuron 4L is labeled for 14 crops and uses, including field corn, cotton, barley, sorghum, and alfalfa.
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.
Sources
Last updated 2026-09-30.