Herbicide label

MCPA-4 Amine Herbicide Label

MCPA-4 Amine (EPA 228-143) is a Group 4 mcpa herbicide labeled for 12 crops. The label lists 73 controlled weeds, plus partial-control, suppression, and partner-control categories.

MCPA-4 Amine label facts

Crops on the MCPA-4 Amine label

MCPA-4 Amine is labeled for these 12 crops and uses, per the EPA label.

Weeds on the MCPA-4 Amine label

The MCPA-4 Amine label names 83 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 control73
  • beggartick
  • bindweed, hedge
  • bindweed, field
  • burcucumber
  • burdock
  • buttercup
  • carpetweed
  • carrot, wild
  • catsear
  • charlock-mustard, yellow
  • cockle, corn
  • cocklebur, common
  • hoary cress
  • croton
  • daisy
  • daisy, yellow
  • dandelion
  • dock
  • dragonhead mint
  • fat hen
  • fennel
  • galinsoga
  • goatsbeard
  • goldenrod
  • gooseberry, wild
  • poison hemlock
  • hempnettle
  • honeysuckle
  • jimsonweed
  • jute, wild
  • kochia
  • knotweed
  • lambsquarters
  • prickly lettuce
  • marigold, wild
  • marshelder
  • morningglory, perennial
  • mustard
  • nettle, dwarf
  • stinging nettle
  • nutgrass
  • pepperweed
  • petunia, wild
  • pigweed
  • plantain
  • plantain, narrowleaf
  • plantain, small
  • poppy, mexican
  • puncturevine
  • purslane
  • radish, wild
  • ragweed, giant
  • redroot
  • ammannia, purple
  • sage, wild
  • saltbush, halbertleaved
  • shepherd's-purse
  • sicklepod
  • sneezeweed, bitter
  • sowthistle
  • spanish needle
  • stinkweed
  • sunflower
  • thistle
  • thistle, canada
  • thornapple
  • vetch
  • whitebrush
  • whitetop
  • witchweed
  • fanweed
  • pennycress, field
  • rocket, yellow

Controls with a tank-mix partner

needs partner10
  • gromwell, corn
  • buckwheat, wild
  • vetch, hairy
  • garlic, wild
  • mustard, blue
  • flixweed
  • mustard, tansy
  • knotweed, prostrate
  • rice, wild
  • knapweed, russian

MCPA-4 Amine 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.

MCPA-4 Amine FAQ

What weeds does MCPA-4 Amine control?

The MCPA-4 Amine label names 83 weeds, including beggartick, hedge bindweed, field bindweed, burcucumber, burdock, and buttercup. Control varies by crop, rate, and timing.

What crops is MCPA-4 Amine labeled for?

MCPA-4 Amine is labeled for 12 crops and uses, including wheat, barley, alfalfa, oats, and cereal rye.

What is the active ingredient in MCPA-4 Amine? Is it a generic?

MCPA-4 Amine's active ingredient is mcpa (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.