Herbicide label

DEVOUR Herbicide Label

DEVOUR (EPA 89167-24-89391) is a Group 22 paraquat herbicide labeled for 24 crops. The label lists 34 controlled weeds, plus partial-control, suppression, and partner-control categories.

DEVOUR label facts

Crops on the DEVOUR label

DEVOUR is labeled for these 24 crops and uses, per the EPA label.

Weeds on the DEVOUR label

The DEVOUR label names 52 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
  • crabgrass
  • fiddleneck
  • foxtail, giant
  • goosegrass
  • groundcherry, cutleaf
  • johnsongrass, seedling
  • maids, red
  • millet, texas
  • panicum, fall
  • pigweed
  • purslane
  • ragweed, common
  • red rice
  • sicklepod
  • signalgrass, broadleaf
  • spikeweed
  • volunteer wheat
  • witchweed
  • bluegrass, annual
  • brome, downy
  • chickweed
  • groundsel, common
  • ryegrass, italian
  • brome, rescue
  • dogfennel
  • foxtail
  • henbit
  • mustard, tansy
  • wild oats
  • rocket, london
  • shepherd's-purse
  • sowthistle

Partial control

partial13
  • cocklebur, common
  • knotweed
  • kochia
  • lambsquarters
  • mallow
  • horseweed
  • morningglory
  • ragweed, giant
  • sida, prickly
  • smartweed, pennsylvania
  • starbur, bristly
  • velvetleaf
  • prickly lettuce

Suppression

suppression5
  • bindweed, hedge
  • dandelion
  • johnsongrass
  • sedges
  • thistle, canada

DEVOUR 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.

DEVOUR FAQ

What weeds does DEVOUR control?

The DEVOUR label names 52 weeds, including barley, common barnyardgrass, crabgrass, fiddleneck, giant foxtail, and goosegrass. Control varies by crop, rate, and timing.

What crops is DEVOUR labeled for?

DEVOUR is labeled for 24 crops and uses, including field corn, soybeans, wheat, cotton, and sunflower.

What is the active ingredient in DEVOUR? Is it a generic?

DEVOUR'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.

Sources

Last updated 2026-09-30.