Herbicide label

Karmex DF Herbicide Label

Karmex DF (EPA 66222-51) is a Group 5 diuron herbicide labeled for 14 crops. The label lists 54 controlled weeds, plus partial-control, suppression, and partner-control categories.

Karmex DF label facts

Crops on the Karmex DF label

Karmex DF is labeled for these 14 crops and uses, per the EPA label.

Weeds on the Karmex DF label

The Karmex DF label names 64 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 control54
  • ageratum
  • barnyardgrass, common
  • buckwheat, wild
  • clover, mexican
  • crabgrass
  • crowfoot
  • dayflower
  • dogfennel
  • foxtail
  • goosegrass
  • gromwell
  • groundcherry, annual
  • horseweed
  • johnsongrass, seedling
  • knawel
  • kochia
  • kyllinga
  • lettuce, wild
  • lovegrass, annual
  • marigold
  • morning glory, annual
  • needles, spanish
  • orchardgrass
  • paintbrush, flora's
  • pennycress, field
  • peppergrass
  • pineapple-weed
  • pokeweed, common
  • purslane
  • radish, wild
  • ragweed, giant
  • ricegrass
  • sandbur
  • smartweed, annual
  • sowthistle, annual
  • speedwell, corn
  • sprangletop, red
  • spurry, corn
  • tansymustard
  • tobacco, rabbit
  • velvetleaf
  • vernalgrass, sweet annual
  • windgrass, common
  • bluegrass, annual
  • chickweed
  • rattail fescue
  • hawksbeard
  • ryegrass, annual
  • velvetgrass
  • fiddleneck
  • lambsquarters
  • mustard, wild
  • pigweed
  • shepherd's-purse

Partial control

partial10
  • cocklebur, common
  • guineagrass
  • horsenettle
  • maidencane
  • nutsedge
  • pangolagrass
  • quackgrass
  • sesbania
  • sicklepod
  • sida, prickly

Karmex DF 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.

Karmex DF FAQ

What weeds does Karmex DF control?

The Karmex DF label names 64 weeds, including ageratum, common barnyardgrass, wild buckwheat, mexican clover, crabgrass, and crowfoot. Control varies by crop, rate, and timing.

What crops is Karmex DF labeled for?

Karmex DF is labeled for 14 crops and uses, including field corn, wheat, cotton, barley, and sorghum.

What is the active ingredient in Karmex DF? Is it a generic?

Karmex DF'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.