Herbicide label

TriCor DF Herbicide Label

TriCor DF (EPA 70506-103) is a Group 5 metribuzin herbicide labeled for 15 crops. The label lists 135 controlled weeds, plus partial-control, suppression, and partner-control categories.

TriCor DF label facts

Crops on the TriCor DF label

TriCor DF is labeled for these 15 crops and uses, per the EPA label.

Weeds on the TriCor DF label

The TriCor DF label names 176 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 control135
  • ageratum
  • alexandergrass
  • amaranth, spiny
  • amaranth, spleen
  • cudweed
  • euphorbia, wild
  • fireweed
  • groundsel, cressleaf
  • guineagrass
  • haole koa
  • hilahila
  • oats, winter
  • paintbrush, flora's
  • panicum, broadleaf
  • plushgrass
  • rattlepod
  • richardia
  • ricegrass
  • spurge, garden
  • spurge, graceful
  • tarweed
  • anoda, spurred
  • beggarweed, florida
  • copperleaf, hophornbeam
  • crowfootgrass
  • dayflower
  • galinsoga
  • junglerice
  • mexicanweed
  • millet, browntop
  • redweed
  • sesbania
  • smartweeds
  • spurge, spotted
  • starbur, bristly
  • barley, little
  • pepperweed, virginia
  • barley, mouse
  • bromegrass, smooth
  • canarygrass, littleseed
  • cockle, white
  • deadnettle, purple
  • fleabane, rough
  • flixweed
  • foxtail barley
  • goosefoot, nettleleaf
  • knotweed, silversheath
  • mallow, little
  • pepperweed
  • pepperweed, field
  • rocket, yellow
  • salsify, meadow
  • sowthistle, spiny
  • barnyardgrass, common
  • ragweed, common
  • bindweed, field
  • bittercress
  • catchfly, conical
  • catchweed
  • corncockle
  • eveningprimrose, cutleaf
  • falseflax, smallseed
  • fiddleneck
  • filaree, redstem
  • geranium
  • gromwell, carolina
  • miner's lettuce
  • polemonium, annual
  • radish, wild
  • turnip, wild
  • bluegrass, annual
  • brome, downy
  • cheat
  • brome, japanese
  • rescuegrass
  • buckwheat, wild
  • buffalobur
  • ladysthumb
  • mallow, venice
  • sandbur, field
  • sida, prickly
  • velvetleaf
  • waterhemp, common
  • carpetweed
  • sicklepod
  • chickweed, common
  • chickweed, mouseear
  • cocklebur, common
  • jimsonweed
  • panicum, fall
  • cowcockle
  • crabgrass
  • crabgrass, large
  • crabgrass, smooth
  • johnsongrass, seedling
  • dandelion
  • dogfennel
  • rattail fescue
  • foxtail, bristlegrass
  • foxtail, bristly
  • foxtail
  • foxtail, giant
  • foxtail, yellow
  • foxtail, green
  • goosegrass
  • henbit
  • horseweed
  • knotweed
  • pusley, florida
  • knotweed, prostrate
  • pineapple-weed
  • kochia
  • lambsquarters, common
  • mustard, blue
  • mustard, indian
  • mustard, tansy
  • mustard, tumble
  • mustard, treacle
  • mustard, wild
  • wild oats
  • pennycress, field
  • pigweed
  • pigweed, redroot
  • pigweed, smooth
  • prickly lettuce
  • purslane, common
  • rocket, london
  • sowthistle
  • shepherd's-purse
  • signalgrass, broadleaf
  • smartweed, pennsylvania
  • speedwell
  • sunflower
  • thistle, russian
  • volunteer wheat

Partial control

partial2
  • knawel
  • dock, curly

Suppression

suppression18
  • horsenettle
  • poinsettia, wild
  • barley, hare
  • blackgrass
  • bluegrass, bulbous
  • buttercup
  • vetch, winter
  • whitlowgrass, spring
  • windgrass, common
  • morningglory, entireleaf
  • morningglory, ivyleaf
  • morningglory, pitted
  • morningglory, tall
  • brome, ripgut
  • nightshade, hairy
  • nutsedge, yellow
  • ryegrass
  • spurry, corn

Controls with a tank-mix partner

needs partner21
  • amaranth, palmer
  • eclipta
  • nightshade, eastern black
  • poorjoe
  • barley
  • burcucumber
  • smartweed, swamp
  • thistle, canada
  • senna, coffee
  • cupgrass
  • groundsel, common
  • morningglory, smallflower
  • shattercane
  • witchgrass
  • nightshade, black
  • panicum, texas
  • red rice
  • sorghum, volunteer
  • sprangletop
  • stinkgrass
  • ragweed, giant

TriCor 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.

TriCor DF FAQ

What weeds does TriCor DF control?

The TriCor DF label names 176 weeds, including ageratum, alexandergrass, spiny amaranth, spleen amaranth, cudweed, and wild euphorbia. Control varies by crop, rate, and timing.

What crops is TriCor DF labeled for?

TriCor DF is labeled for 15 crops and uses, including field corn, soybeans, potato, barley, and alfalfa.

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

TriCor DF'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.