Herbicide label
Zone Assist
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.
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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.
Need the rate or timing for one of these? Filter every label by your crop, free.
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
- beggarweed, florida
- buckwheat, wild
- carpetweed
- bedstraw, catchweed
- cocklebur, common
- copperleaf, hophornbeam
- copperleaf, virginia
- daisy, american
- eclipta
- filaree, redstem
- galinsoga, hairy
- crownbeard, golden
- groundcherry, clammy
- groundcherry, cutleaf
- jimsonweed
- kochia
- ladysthumb
- lambsquarters, common
- mallow, venice
- marshelder
- morningglory, entireleaf
- morningglory, ivyleaf
- morningglory, palmleaf
- morningglory, pitted
- morningglory, purple
- morningglory, red
- morningglory, scarlet
- morningglory, smallflower
- morningglory, tall
- mustard, black
- mustard, tumble
- mustard, wild
- nightshade, black
- nightshade, eastern black
- nightshade, hairy
- nutsedge, purple
- nutsedge, yellow
- pigweed, redroot
- pigweed, smooth
- poinsettia, wild
- poorjoe
- purslane, common
- pusley, florida
- redmaids, rockpurslane
- redweed
- sedge, annual
- senna, coffee
- shepherd's-purse
- sida, prickly
- sida, southern
- smartweed, pennsylvania
- spurge, prostrate
- spurge, spotted
- starbur, bristly
- thistle, russian
- velvetleaf
- waterhemp, common
Suppression
suppression14- foxtail, bristly
- foxtail, giant
- foxtail, green
- foxtail, yellow
- johnsongrass, seedling
- shattercane
- panicum, fall
- barnyardgrass, common
- crabgrass, large
- crabgrass, small
- crabgrass, southern
- goosegrass
- panicum, texas
- signalgrass, broadleaf
Want the control level for your crop, or to filter 1,700+ labels by any of these weeds? Use the free label filter.
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 and your soil texture.
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, the rotational crop, and your state, region, and rainfall — some intervals differ in AL, AR, GA, LA, MS, NC, SC, TN, and VA.
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, florida beggarweed, and wild buckwheat. 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.
What's the plant-back interval after Zone Assist?
It depends on your rotational crop, application rate, and region, so the label gives a table, not one number. Build a program and FieldMarshal gives you the exact interval for your rotation from the label line, so you can verify it.
Build a program →Can I tank-mix Zone Assist?
It depends on your target weeds, crop stage, and which partners the label approves. Build a program and FieldMarshal checks the label for approved partners and gives the condition on each, so you can verify it.
Build a program →Plan in minutes, not hours.
Start with Zone Assist and let FieldMarshal build a defensible herbicide program for your field, every product, rate, and plant-back cross-referenced and checked against the label.
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Sources
Last updated 2026-07-14.