Herbicide label

WAPC 2,4-D Amine 4 Herbicide Label

WAPC 2,4-D Amine 4 (EPA 81927-38-92735) is a Group 4 2,4-d herbicide labeled for 16 crops. The label lists 158 controlled weeds, plus partial-control, suppression, and partner-control categories.

WAPC 2,4-D Amine 4 label facts

Crops on the WAPC 2,4-D Amine 4 label

WAPC 2,4-D Amine 4 is labeled for these 16 crops and uses, per the EPA label.

Weeds on the WAPC 2,4-D Amine 4 label

The WAPC 2,4-D Amine 4 label names 162 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 control158
  • alfalfa
  • bindweed, hedge
  • bittercress, small-flowered
  • bullnettle
  • thistle, canada
  • carolina geranium
  • cinquefoil, common and rough
  • clover, red
  • cocklebur, common
  • dandelion
  • eveningprimrose, cutleaf
  • garlic, wild
  • horseweed or marestail
  • ironweed
  • lambsquarters, common
  • prickly lettuce
  • morning glory, annual
  • mousetail
  • mustard, wild
  • onion, wild
  • pennycress, field
  • purslane, common
  • ragweed, giant
  • ragweed, common
  • shepherd's-purse
  • sowthistle, annual
  • speedwell
  • thistle, bull
  • velvet leaf
  • copperleaf, virginia
  • alligatorweed
  • annual broadleaf weeds
  • annual grasses
  • annual weeds
  • arrowhead
  • artichoke
  • aster
  • austrian fieldcress
  • beggartick
  • biden
  • biennial broadleaf weeds
  • bindweed, field
  • bittercress
  • sneezeweed, bitter
  • bitter wintercress
  • blackeyed susan
  • blessed thistle
  • blue lettuce
  • box elder
  • broadleaf cover crops
  • broadleaf weeds
  • broomweed, annual
  • buckhorn
  • bulrush
  • burdock
  • ragweed, bur
  • buttercup
  • carpetweed
  • catnip
  • chickweed
  • chicory
  • cinquefoil
  • cockle
  • coffee bean
  • coffeeweed
  • common sowthistle
  • creeping jenny
  • croton
  • curly indigo
  • devil's claw
  • dock
  • dogbane
  • flea bane (daisy)
  • flixweed
  • pusley, florida
  • frenchweed
  • galinsoga
  • goatsbeard
  • goldenrod
  • goosefoot
  • ground ivy
  • gumweed
  • heal-all
  • hemp
  • henbit
  • hoary cress
  • honeysuckle
  • horsetail
  • indigo
  • indiana mallow
  • jerusalem artichoke
  • jewelweed
  • jimsonweed
  • johnsongrass, seedling
  • kochia
  • knotweed
  • lambsquarters
  • locoweed
  • lupine
  • mallow
  • many flowered aster
  • marijuana
  • marshelder
  • mexican weed
  • morningglory
  • muskthistle
  • mustard
  • nettle
  • nutgrass
  • orange hawkweed
  • parrot feather
  • parsnip
  • pennywort
  • pepperweed
  • pigweed
  • plantain
  • poison hemlock
  • poison ivy
  • pokeweed, common
  • poorjoe
  • povertyweed
  • primrose
  • puncturevine
  • purslane
  • rush
  • thistle, russian
  • st. johnswort
  • salsify
  • sicklepod
  • smartweed
  • southern wild rose
  • sowthistle
  • spanishneedle
  • stinging nettle
  • stinkweed
  • sunflower
  • sweetclover
  • tanweed
  • tarweed
  • thistle
  • toadflax
  • tumbleweed
  • vervain
  • vetch
  • virginia creeper
  • water plantain
  • water primrose
  • water shield
  • carrot, wild
  • wild lettuce
  • parsnip, wild
  • radish, wild
  • wild rape
  • wild strawberry
  • sweet potato, wild
  • witchweed
  • wormseed
  • rocket, yellow

Partial control

partial3
  • peppergrass
  • smartweed, pennsylvania
  • vetch, hairy

Suppression

suppression1
  • perennial weeds

WAPC 2,4-D Amine 4 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.

WAPC 2,4-D Amine 4 FAQ

What weeds does WAPC 2,4-D Amine 4 control?

The WAPC 2,4-D Amine 4 label names 162 weeds, including alfalfa, hedge bindweed, small-flowered bittercress, bullnettle, canada thistle, and carolina geranium. Control varies by crop, rate, and timing.

What crops is WAPC 2,4-D Amine 4 labeled for?

WAPC 2,4-D Amine 4 is labeled for 16 crops and uses, including field corn, soybeans, wheat, barley, and sorghum.

What is the active ingredient in WAPC 2,4-D Amine 4? Is it a generic?

WAPC 2,4-D Amine 4's active ingredient is 2,4-d (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.