Herbicide label
Grapple Herbicide Label
Grapple (EPA 71368-121) is a Group 2 rimsulfuron herbicide labeled for 5 crops. The label lists 41 controlled weeds, plus partial-control, suppression, and partner-control categories.
“Grapple Herbicide is a selective herbicide for burndown and residual control of certain annual grass and broadleaf weeds when applied preemergence and postemergence to field corn.”
Grapple label facts
- Product Grapple
- EPA Reg. No. 71368-121
- Registrant Nufarm, Inc.
- Active ingredient rimsulfuron
- MOA group 2
Crops on the Grapple label
Grapple is labeled for these 5 crops and uses, per the EPA label.
Weeds on the Grapple label
The Grapple label names 55 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 control41- alfalfa
- amaranth, palmer
- carpetweed
- cupgrass, woolly
- dandelion
- jimsonweed
- shattercane
- signalgrass, broadleaf
- thistle, russian
- barley
- barnyardgrass, common
- bluegrass, annual
- chamomile, false
- chickweed, common
- cocklebur, common
- crabgrass, large
- filaree, redstem
- foxtail, bristly
- foxtail, giant
- foxtail, green
- foxtail, yellow
- henbit
- kochia
- lambsquarters, common
- morningglory, ivyleaf
- mustard, birdsrape
- mustard, black
- mustard, wild
- wild oats
- panicum, fall
- pigweed, prostrate
- pigweed, redroot
- pigweed, smooth
- purslane, common
- radish, wild
- ragweed, common
- shepherd's-purse
- smartweed, pennsylvania
- thistle, canada
- velvetleaf
- volunteer wheat
Partial control
partial8- ryegrass, italian
- johnsongrass, seedling
- millet, wild-proso
- nightshade, black
- nightshade, hairy
- nutsedge, yellow
- quackgrass
- stinkgrass
Controls with a tank-mix partner
needs partner6- buckwheat, wild
- sandbur, field
- sandbur, longspine
- deadnettle, purple
- ragweed, giant
- waterhemp, common
Grapple 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.
Grapple FAQ
What weeds does Grapple control?
The Grapple label names 55 weeds, including alfalfa, palmer amaranth, carpetweed, woolly cupgrass, dandelion, and jimsonweed. Control varies by crop, rate, and timing.
What crops is Grapple labeled for?
Grapple is labeled for 5 crops and uses, including field corn, soybeans, cotton, potato, and fallow.
What is the active ingredient in Grapple? Is it a generic?
Grapple's active ingredient is rimsulfuron (MOA Group 2). 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.