Herbicide label

BL2 Herbicide Label

BL2 (EPA 279-9624) is a Group 5 metribuzin herbicide labeled for 7 crops. The label lists 79 controlled weeds, plus partial-control, suppression, and partner-control categories.

BL2 label facts

Crops on the BL2 label

BL2 is labeled for these 7 crops and uses, per the EPA label.

Weeds on the BL2 label

The BL2 label names 104 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 control79
  • anoda, spurred
  • beggarweed, florida
  • copperleaf, hophornbeam
  • crowfootgrass
  • galinsoga
  • goosegrass
  • junglerice
  • knotweed
  • millet, browntop
  • pusley, florida
  • redweed
  • sesbania
  • smartweed
  • spurge, spotted
  • starbur, bristly
  • barnyardgrass, common
  • cocklebur, common
  • crabgrass, large
  • crabgrass, smooth
  • jimsonweed
  • johnsongrass, seedling
  • panicum, fall
  • ragweed, common
  • smartweed, pennsylvania
  • bittercress
  • catchfly, conical
  • catchweed
  • chickweed, mouseear
  • corncockle
  • dogfennel
  • eveningprimrose, cutleaf
  • falseflax, smallseed
  • fiddleneck
  • filaree, redstem
  • geranium
  • gromwell, carolina
  • knotweed, prostrate
  • miner's lettuce
  • pepperweed, virginia
  • pineapple-weed
  • polemonium, annual
  • radish, wild
  • speedwell
  • turnip, wild
  • bluegrass, annual
  • brome, downy
  • cheat
  • cowcockle
  • wild oats
  • buffalobur
  • crabgrass
  • mallow, venice
  • sida, prickly
  • velvetleaf
  • carpetweed
  • purslane
  • sicklepod
  • signalgrass, broadleaf
  • chickweed, common
  • henbit
  • mustard, blue
  • pigweed
  • foxtail, giant
  • foxtail, yellow
  • shepherd's-purse
  • foxtail, green
  • kochia
  • lambsquarters, common
  • mustard, tansy
  • mustard, tumble
  • mustard, wild
  • pennycress, field
  • pigweed, redroot
  • pigweed, smooth
  • thistle, russian
  • mustard, indian
  • sunflower
  • mustard, treacle
  • volunteer wheat

Suppression

suppression17
  • barley, hare
  • barley, little
  • blackgrass
  • bluegrass, bulbous
  • brome, japanese
  • brome, ripgut
  • buckwheat, wild
  • buttercup
  • rescuegrass
  • vetch, winter
  • whitlowgrass, spring
  • windgrass, common
  • horseweed
  • foxtail
  • prickly lettuce
  • nightshade, hairy
  • nutsedge, yellow

Controls with a tank-mix partner

needs partner8
  • dandelion, common
  • ladysthumb
  • morningglory
  • ragweed, giant
  • waterhemp, common
  • sandbur, field
  • shattercane
  • witchgrass

BL2 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.

BL2 FAQ

What weeds does BL2 control?

The BL2 label names 104 weeds, including spurred anoda, florida beggarweed, hophornbeam copperleaf, crowfootgrass, galinsoga, and goosegrass. Control varies by crop, rate, and timing.

What crops is BL2 labeled for?

BL2 is labeled for 7 crops and uses, including field corn, soybeans, wheat, potato, and barley.

What is the active ingredient in BL2? Is it a generic?

BL2'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.