Herbicide label

Clarifier Herbicide Label

Clarifier (EPA 42750-209-1381) is a Group 4 dicamba herbicide labeled for 18 crops. The label lists 214 controlled weeds, plus partial-control, suppression, and partner-control categories.

“CLARIFIER® is readily absorbed by plants through shoot and root uptake, translocates throughout the plant's system, and accumulates in areas of active growth.”

— Clarifier EPA label, Reg. No. 42750-209-1381

Clarifier label facts

Crops on the Clarifier label

Clarifier is labeled for these 18 crops and uses, per the EPA label.

Weeds on the Clarifier label

The Clarifier label names 229 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 control214
  • alfalfa
  • jerusalem artichoke
  • aster, spiny
  • aster, whiteheath
  • bedstraw, smooth
  • bindweed, field
  • bindweed, hedge
  • blueweed, texas
  • bursage, woolly-leaf
  • buttercup, tall
  • campion, bladder
  • chickweed, field
  • chickweed, mouseear
  • chicory
  • clover, hop
  • dandelion
  • dock, broadleaf
  • dock, curly
  • dogbane, hemp
  • dogfennel
  • fern, bracken
  • garlic, wild
  • goldenrod
  • goldenrod, missouri
  • goldenweed, common
  • hawkweed
  • horsenettle
  • ironweed
  • knapweed, black
  • knapweed, diffuse
  • knapweed, russian
  • knapweed, spotted
  • lespedeza, sericea
  • milkweed, common
  • milkweed, honeyvine
  • milkweed, western
  • milkweed, whorled
  • stinging nettle
  • nightshade, silverleaf
  • onion, wild
  • plantain, broadleaf
  • plantain, narrow-leaved
  • pokeweed, common
  • ragweed, western
  • redvine
  • smartweed, swamp
  • snakeweed, broom
  • sorrel, red
  • sowthistle, perennial
  • spurge, leafy
  • sundrop
  • thistle, canada
  • thistle, scotch
  • toadflax, dalmatian
  • tropical soda apple
  • trumpetcreeper
  • vetch
  • waterhemlock, spotted
  • waterprimrose, creeping
  • woodsorrel, creeping
  • woodsorrel, yellow
  • wormwood, louisiana
  • yankeeweed
  • yarrow, common
  • alkanet
  • amaranth, palmer
  • amaranth, powell
  • amaranth, spiny
  • aster, slender
  • bedstraw, catchweed
  • beggarweed, florida
  • broomweed, common
  • buckwheat, tartar
  • buckwheat, wild
  • buffalobur
  • burclover, california
  • burcucumber
  • buttercup, corn
  • buttercup, creeping
  • buttercup, roughseed
  • buttercup, western field
  • carpetweed
  • catchfly, nightflowering
  • chamomile, corn
  • chervil, bur
  • chickweed, common
  • clover species
  • cockle, corn
  • cockle, cow
  • cocklebur, common
  • copperleaf, hophornbeam
  • cornflower
  • croton, tropic
  • croton, woolly
  • daisy, english
  • dragonhead, american
  • eveningprimrose, cutleaf
  • falseflax, smallseed
  • fleabane, annual
  • flixweed
  • fumitory
  • goosefoot, nettleleaf
  • hempnettle
  • henbit
  • jacobs-ladder
  • jimsonweed
  • knawel
  • knotweed, prostrate
  • kochia
  • ladysthumb
  • lambsquarters, common
  • miner's lettuce
  • prickly lettuce
  • mallow, common
  • mallow, venice
  • horseweed
  • mayweed
  • morningglory, ivyleaf
  • morningglory, tall
  • mustard, black
  • mustard, blue
  • mustard, tansy
  • mustard, treacle
  • mustard, tumble
  • mustard, wild
  • mustard, yellowtops
  • nightshade, black
  • nightshade, cutleaf
  • pennycress, field
  • pepperweed, virginia
  • pigweed, prostrate
  • pigweed, redroot
  • pigweed, rough
  • pigweed, smooth
  • pigweed, tumble
  • pineapple-weed
  • poorjoe
  • poppy, red-horned
  • puncturevine
  • purslane, common
  • pusley, florida
  • radish, wild
  • ragweed, common
  • ragweed, giant
  • ragweed, lance-leaf
  • rocket, london
  • rocket, yellow
  • rubberweed, bitter
  • salsify
  • senna, coffee
  • sesbania, hemp
  • shepherd's-purse
  • sicklepod
  • sida, prickly
  • smartweed, green
  • smartweed, pennsylvania
  • sneezeweed, bitter
  • sowthistle, annual
  • sowthistle, spiny
  • needles, spanish
  • spikeweed, common
  • spurge, prostrate
  • spurry, corn
  • starbur, bristly
  • starwort, little
  • sumpweed, rough
  • sunflower, annual
  • sunflower
  • thistle, russian
  • velvetleaf
  • waterhemp, common
  • waterprimrose, winged
  • wormwood
  • aspen
  • basswood
  • cherry
  • chinquapin
  • cottonwood
  • cucumbertree
  • grape
  • hemlock
  • honeylocust
  • honeysuckle
  • hornbeam
  • huckleberry
  • huisache
  • poison ivy
  • maple
  • mesquite
  • oak
  • poplar
  • rabbitbrush
  • serviceberry
  • spicebush
  • spruce
  • sycamore
  • tarbush
  • witchhazel
  • burdock
  • carrot, wild
  • cockle, white
  • eveningprimrose, common
  • carolina geranium
  • gromwell
  • mallow, dwarf
  • plantain, bracted
  • ragwort, tansy
  • starthistle, yellow
  • sweetclover
  • teasel
  • thistle, bull
  • thistle, milk
  • thistle, musk
  • thistle, plumeless

Suppression

suppression15
  • blackberry
  • blackgum
  • brome, downy
  • brome, ripgut
  • cedar, eastern red
  • creosotebush
  • dewberry
  • rattail fescue
  • plum, sand
  • redcedar, eastern
  • rose, mccartney
  • sweetgum
  • windgrass, common
  • yaupon
  • yucca

Clarifier 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.

Clarifier FAQ

What weeds does Clarifier control?

The Clarifier label names 229 weeds, including alfalfa, jerusalem artichoke, spiny aster, whiteheath aster, smooth bedstraw, and field bindweed. Control varies by crop, rate, and timing.

What crops is Clarifier labeled for?

Clarifier is labeled for 18 crops and uses, including field corn, soybeans, wheat, cotton, and barley.

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

Clarifier's active ingredient is dicamba (MOA Group 4). 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.