Herbicide label
Gambit Herbicide Label
Gambit (EPA 81880-27-10163) is a Group 2 halosulfuron-methyl and prosulfuron herbicide labeled for 4 crops. The label lists 65 controlled weeds, plus partial-control, suppression, and partner-control categories.
Gambit label facts
- Product Gambit
- EPA Reg. No. 81880-27-10163
- Distributor Gowan Company, LLC
- Active ingredient halosulfuron-methyl and prosulfuron
- MOA group 2
Crops on the Gambit label
Gambit is labeled for these 4 crops and uses, per the EPA label.
Weeds on the Gambit label
The Gambit label names 89 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 control65- alligatorweed
- amaranth, palmer
- amaranth, spiny
- arrowhead, california
- beggarweed, florida
- buffalobur
- buttercup, hairy
- mayweed, chamomile
- chervil, bur
- cocklebur, common
- spurry, corn
- crownbeard, golden
- dayflower
- dayflower, spreading
- devilsclaw
- ducksalad
- eclipta
- eveningprimrose, cutleaf
- fiddleneck
- flatsedge, rice
- fleabane, philadelphia
- flixweed
- galinsoga
- galinsoga, hairy
- garlic, wild
- goosefoot
- jimsonweed
- jointvetch
- kochia
- ladysthumb
- miner's lettuce
- prickly lettuce
- mallow, venice
- mustard, blue
- mustard, tumble
- mustard, wild
- nutsedge, purple
- nutsedge, yellow
- passionflower, maypop
- pennycress, field
- pigweed, redroot
- pigweed, smooth
- pigweed, tumble
- pineapple-weed
- pokeweed, common
- puncturevine
- pursley, florida
- radish, wild
- ragweed, common
- ragweed, giant
- ammannia, purple
- ricefield bulrush
- sesbania, hemp
- shepherd's-purse
- sicklepod
- smallflower umbrella sedge
- smartweed, annual
- smartweed, pennsylvania
- sunflower
- tansymustard
- texasweed
- thistle, russian
- velvetleaf
- wallflower, bushy
- yellowcress, creeping
Suppression
suppression24- barnyardgrass, common
- bindweed, field
- bindweed, hedge
- burcucumber
- chickweed, common
- chickweed, mouse ear
- gromwell, corn
- henbit
- horseweed
- horsetail
- knotweed, prostrate
- lambsquarter, common
- mallow, common
- milkweed, common
- milkweed, honeyvine
- morningglory, ivyleaf
- morningglory, pitted
- morningglory, smallflower
- morningglory, tall
- pepperweed, field
- pepperweed, virginia
- sida, prickly
- thistle, canada
- waterhemp, common
Gambit 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.
Gambit FAQ
What weeds does Gambit control?
The Gambit label names 89 weeds, including alligatorweed, palmer amaranth, spiny amaranth, california arrowhead, florida beggarweed, and buffalobur. Control varies by crop, rate, and timing.
What crops is Gambit labeled for?
Gambit is labeled for 4 crops and uses, including field corn, sorghum, rice, and proso millet.
What is the active ingredient in Gambit? Is it a generic?
Gambit's active ingredient is halosulfuron-methyl and prosulfuron (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.