Herbicide label
Curtail M Herbicide Label
Curtail M (EPA 62719-86) is a Group 4 clopyralid and mcpa herbicide labeled for 7 crops. The label lists 58 controlled weeds, plus partial-control, suppression, and partner-control categories.
“Curtail M contains the active ingredients clopyralid and MCPA, growth regulator (Group 4) herbicides, based on the mode of action classification system of the Weed Science Society of America.”
Curtail M label facts
- Product Curtail M
- EPA Reg. No. 62719-86
- Registrant Corteva Agriscience
- Active ingredient clopyralid and mcpa
- MOA group 4
Crops on the Curtail M label
Curtail M is labeled for these 7 crops and uses, per the EPA label.
Weeds on the Curtail M label
The Curtail M label names 65 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 control58- alfalfa
- jerusalem artichoke
- burdock
- clover, red
- sweetclover
- clover, white
- dandelion
- dock, curly
- groundsel, common
- hawkweed, orange
- hawkweed, yellow
- knapweed, diffuse
- knapweed, spotted
- plantain
- salsify, meadow
- sorrel, red
- teasel, common
- thistle, bull
- thistle, musk
- beans, volunteer
- buckwheat, wild
- chamomile, false
- mayweed, chamomile
- clover, black medic
- clover, hop
- cocklebur, common
- coffeeweed
- cornflower
- hawksbeard, narrowleaf
- horseweed
- jimsonweed
- ladysthumb
- lambsquarters, common
- lentil, volunteer
- prickly lettuce
- mustard, tumble
- mustard, wild
- nightshade, black
- nightshade, cutleaf
- nightshade, eastern black
- nightshade, hairy
- pea, volunteer
- pennycress, field
- pigweed, redroot
- pineapple-weed
- radish, wild
- ragweed, common
- ragweed, giant
- shepherd's-purse
- sicklepod
- smartweed, pennsylvania
- sowthistle, annual
- starthistle, yellow
- sunflower, annual
- thistle, canada
- velvetleaf
- vetch
- wormwood, biennial
Suppression
suppression7- knapweed, russian
- sowthistle, perennial
- buffalobur
- flixweed
- kochia
- tansymustard, pinnate
- thistle, russian
Curtail M 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.
Curtail M FAQ
What weeds does Curtail M control?
The Curtail M label names 65 weeds, including alfalfa, jerusalem artichoke, burdock, red clover, sweetclover, and white clover. Control varies by crop, rate, and timing.
What crops is Curtail M labeled for?
Curtail M is labeled for 7 crops and uses, including wheat, barley, oats, flax, and grass seed.
What is the active ingredient in Curtail M? Is it a generic?
Curtail M's active ingredient is clopyralid and 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.