Herbicide label

Metribuzin 4L Herbicide Label

Metribuzin 4L (EPA 34704-990) is a Group 5 metribuzin herbicide labeled for 13 crops. The label lists 109 controlled weeds, plus partial-control, suppression, and partner-control categories.

Metribuzin 4L label facts

Crops on the Metribuzin 4L label

Metribuzin 4L is labeled for these 13 crops and uses, per the EPA label.

Weeds on the Metribuzin 4L label

The Metribuzin 4L label names 145 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 control109
  • amaranth, spiny
  • amaranth, spleen
  • crotalaria, showy
  • foxtail, bristly
  • groundsel, cressleaf
  • rocket, london
  • anoda, spurred
  • beggarweed, florida
  • copperleaf, hophornbeam
  • crowfootgrass
  • dayflower
  • galinsoga
  • junglerice
  • millet, browntop
  • redweed
  • sandbur
  • sesbania, hemp
  • smartweed
  • spurge, spotted
  • starbur, bristly
  • barley, little
  • brome, japanese
  • pepperweed, virginia
  • rescuegrass
  • barnyardgrass, common
  • ragweed, common
  • bindweed, field
  • bittercress
  • catchfly, conical
  • eveningprimrose, cutleaf
  • falseflax, smallseed
  • fiddleneck
  • filaree, redstem
  • carolina geranium
  • miner's lettuce
  • polemonium, annual
  • radish, wild
  • speedwell
  • tansymustard
  • turnip, wild
  • bluegrass, annual
  • brome, downy
  • cheat
  • mustard, blue
  • mustard, hill
  • wild oats
  • bromegrass, smooth
  • cockle, white
  • deadnettle, purple
  • fleabane, rough
  • flixweed
  • foxtail barley
  • pepperweed
  • rocket, yellow
  • salsify, meadow
  • buckwheat, wild
  • buffalobur
  • ladysthumb
  • mallow, venice
  • sandbur, field
  • sida, prickly
  • velvetleaf
  • carpetweed
  • sicklepod
  • chickweed, common
  • chickweed, mouseear
  • cocklebur, common
  • jimsonweed
  • panicum, fall
  • cowcockle
  • crabgrass
  • crabgrass, large
  • crabgrass, smooth
  • mustard, indian
  • dandelion
  • dogfennel
  • foxtail
  • foxtail, giant
  • foxtail, yellow
  • foxtail, green
  • goosegrass
  • purslane
  • henbit
  • horseweed
  • johnsongrass, seedling
  • knotweed
  • pusley, florida
  • knotweed, prostrate
  • pineapple-weed
  • kochia
  • lambsquarters
  • lambsquarters, common
  • prickly lettuce
  • mayweed
  • mustard, tansy
  • mustard, tumble
  • mustard, wild
  • pennycress, field
  • pigweed
  • pigweed, redroot
  • pigweed, smooth
  • purslane, common
  • shepherd's-purse
  • signalgrass, broadleaf
  • smartweed, pennsylvania
  • sowthistle
  • sunflower
  • thistle, russian
  • volunteer wheat

Partial control

partial2
  • knawel
  • dock, curly

Suppression

suppression16
  • horsenettle
  • poinsettia, wild
  • barley, hare
  • blackgrass
  • bluegrass, bulbous
  • brome, ripgut
  • buttercup
  • vetch
  • windgrass, common
  • morningglory
  • nightshade, hairy
  • nutsedge, yellow
  • morningglory, ivyleaf
  • morningglory, pitted
  • morningglory, tall
  • spurry, corn

Controls with a tank-mix partner

needs partner18
  • amaranth, palmer
  • eclipta
  • burcucumber
  • smartweed, swamp
  • thistle, canada
  • groundsel, common
  • ryegrass
  • morningglory, smallflower
  • red rice
  • sprangletop
  • stinkgrass
  • nightshade, black
  • panicum, texas
  • ragweed, giant
  • senna, coffee
  • shattercane
  • witchgrass
  • waterhemp, common

Metribuzin 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.

Metribuzin 4L FAQ

What weeds does Metribuzin 4L control?

The Metribuzin 4L label names 145 weeds, including spiny amaranth, spleen amaranth, showy crotalaria, bristly foxtail, cressleaf groundsel, and london rocket. Control varies by crop, rate, and timing.

What crops is Metribuzin 4L labeled for?

Metribuzin 4L is labeled for 13 crops and uses, including field corn, soybeans, potato, barley, and alfalfa.

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

Metribuzin 4L's active ingredient is metribuzin (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.