Herbicide label
Zone Assist Herbicide Label
Zone Assist (EPA 74530-80) is a Group 2 and 14 imazethapyr and sulfentrazone herbicide labeled for 2 crops. The label lists 61 controlled weeds, plus partial-control, suppression, and partner-control categories.
Zone Assist label facts
- Product Zone Assist
- EPA Reg. No. 74530-80
- Registrant Helm Agro US, Inc.
- Active ingredient imazethapyr and sulfentrazone
- MOA group 2 and 14
Crops on the Zone Assist label
Zone Assist is labeled for these 2 crops and uses, per the EPA label.
Weeds on the Zone Assist label
The Zone Assist label names 75 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 control61- amaranth, palmer
- amaranth, spiny
- amaranth, spleen
- anoda, spurred
- cocklebur, common
- copperleaf, hophornbeam
- morningglory, entireleaf
- morningglory, ivyleaf
- morningglory, palmleaf
- morningglory, purple
- morningglory, red
- morningglory, scarlet
- morningglory, tall
- nightshade, black
- nightshade, eastern black
- nutsedge, purple
- nutsedge, yellow
- pigweed, redroot
- pigweed, smooth
- purslane, common
- sedge, annual
- sida, prickly
- smartweed, pennsylvania
- spurge, prostrate
- waterhemp, common
- beggarweed, florida
- buckwheat, wild
- carpetweed
- bedstraw, catchweed
- copperleaf, virginia
- daisy, american
- eclipta
- filaree, redstem
- galinsoga, hairy
- crownbeard, golden
- groundcherry, clammy
- groundcherry, cutleaf
- jimsonweed
- kochia
- ladysthumb
- lambsquarters, common
- mallow, venice
- marshelder
- morningglory, pitted
- morningglory, smallflower
- mustard, black
- mustard, tumble
- mustard, wild
- nightshade, hairy
- poinsettia, wild
- poorjoe
- pusley, florida
- redmaids, rockpurslane
- redweed
- senna, coffee
- shepherd's-purse
- sida, southern
- spurge, spotted
- starbur, bristly
- thistle, russian
- velvetleaf
Suppression
suppression14- panicum, fall
- barnyardgrass, common
- crabgrass, large
- crabgrass, small
- crabgrass, southern
- goosegrass
- panicum, texas
- signalgrass, broadleaf
- foxtail, bristly
- foxtail, giant
- foxtail, green
- foxtail, yellow
- johnsongrass, seedling
- shattercane
Zone Assist 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.
Zone Assist FAQ
What weeds does Zone Assist control?
The Zone Assist label names 75 weeds, including palmer amaranth, spiny amaranth, spleen amaranth, spurred anoda, common cocklebur, and hophornbeam copperleaf. Control varies by crop, rate, and timing.
What crops is Zone Assist labeled for?
Zone Assist is labeled for 2 crops and uses, including soybeans and peanut.
What is the active ingredient in Zone Assist? Is it a generic?
Zone Assist's active ingredient is imazethapyr and sulfentrazone (MOA Group 2 and 14). 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.