Herbicide label
PERMIT Herbicide Label
PERMIT (EPA 81880-2-10163) is a Group 2 halosulfuron-methyl herbicide labeled for 10 crops. The label lists 46 controlled weeds, plus partial-control, suppression, and partner-control categories.
“PERMIT can be absorbed through roots, shoots and foliage and is translocated within the plant.”
PERMIT label facts
- Product PERMIT
- EPA Reg. No. 81880-2-10163
- Distributor Gowan Company, LLC
- Active ingredient halosulfuron-methyl
- MOA group 2
Crops on the PERMIT label
PERMIT is labeled for these 10 crops and uses, per the EPA label.
Weeds on the PERMIT label
The PERMIT label names 56 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 control46- amaranth, spiny
- arrowhead, california
- chickweed, common
- cocklebur, common
- spurry, corn
- dayflower
- deadnettle, purple
- devilsclaw
- eclipta
- flatsedge, rice
- fleabane, philadelphia
- galinsoga
- crownbeard, golden
- goosefoot
- groundsel, common
- horseweed
- jimsonweed
- jointvetch
- kochia
- ladysthumb
- lambsquarters, common
- prickly lettuce
- mallow, common
- mallow, venice
- mayweed, chamomile
- mustard, wild
- nutsedge, yellow
- nutsedge, purple
- passionflower, maypop
- pigweed, redroot
- pigweed, smooth
- plantain, broadleaf
- pokeweed, common
- radish, wild
- ragweed, common
- ragweed, giant
- ammannia, purple
- bulrush, ricefield
- sesbania, hemp
- shepherd's-purse
- sedge, smallflower umbrella
- smartweed, pennsylvania
- sunflower
- velvetleaf
- willowherb
- yellowcress, creeping
Suppression
suppression9- bindweed, hedge
- burcucumber
- horsetail
- milkweed, common
- milkweed, honeyvine
- morningglory, ivyleaf
- morningglory, tall
- purslane, common
- sida, prickly
Controls with a tank-mix partner
needs partner1- foxtail
PERMIT 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.
PERMIT FAQ
What weeds does PERMIT control?
The PERMIT label names 56 weeds, including spiny amaranth, california arrowhead, common chickweed, common cocklebur, corn spurry, and dayflower. Control varies by crop, rate, and timing.
What crops is PERMIT labeled for?
PERMIT is labeled for 10 crops and uses, including field corn, cotton, sorghum, rice, and dry edible bean.
What is the active ingredient in PERMIT? Is it a generic?
PERMIT's active ingredient is halosulfuron-methyl (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.