Herbicide label
MCPA Ester Herbicide Label
MCPA Ester (EPA 228-267-34704) is a Group 4 mcpa herbicide labeled for 6 crops. The label lists 70 controlled weeds, plus partial-control, suppression, and partner-control categories.
MCPA Ester label facts
- Product MCPA Ester
- EPA Reg. No. 228-267-34704
- Distributor Loveland Products, Inc.
- Active ingredient mcpa
- MOA group 4
Crops on the MCPA Ester label
MCPA Ester is labeled for these 6 crops and uses, per the EPA label.
Weeds on the MCPA Ester label
The MCPA Ester label names 71 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 control70- beggartick
- burcucumber
- burdock
- buttercup
- carpetweed
- catsear
- chervil
- cocklebur, common
- hoary cress
- croton
- daisy
- dandelion
- dock
- fanweed
- fat hen
- fennel
- galinsoga
- goatsbeard
- goldenrod
- goosefoot
- poison hemlock
- hempnettle
- honeysuckle
- jimsonweed
- kochia
- knotweed
- lambsquarters
- miner's lettuce
- prickly lettuce
- marshelder
- dragonhead mint
- morningglory, perennial
- mustard
- nettle, dwarf
- stinging nettle
- pennycress, field
- pepperweed
- pigweed
- plantain, narrowleaf
- plantain, small
- poppy, mexican
- puncturevine
- purslane
- radish, wild
- ragweed, perennial
- red root
- ammannia, purple
- rocket, yellow
- saltbrush, halbertleaved
- shepherd's-purse
- sicklepod
- sneezeweed, bitter
- sowthistle
- spanishneedle
- stinkweed
- sunflower
- thistle, canada
- thornapple
- vetch
- whitebrush
- whitetop
- carrot, wild
- wild gooseberry
- wild jute
- wild marigold
- wild petunia
- wild sage
- witchweed
- yellow charlock-mustard
- yellow daisy
Partial control
partial1- ragweed, giant
MCPA Ester 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 Ester FAQ
What weeds does MCPA Ester control?
The MCPA Ester label names 71 weeds, including beggartick, burcucumber, burdock, buttercup, carpetweed, and catsear. Control varies by crop, rate, and timing.
What crops is MCPA Ester labeled for?
MCPA Ester is labeled for 6 crops and uses, including wheat, barley, durum wheat, cereal rye, and oats.
What is the active ingredient in MCPA Ester? Is it a generic?
MCPA Ester'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.