Herbicide label
GCS Imazamide SC
GCS Imazamide SC (EPA 94730-11) is a Group 2 and 23 imazethapyr and propyzamide herbicide labeled for 2 crops. The label lists 45 controlled weeds, plus partial-control, suppression, and partner-control categories.
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“GCS Imazamide SC Herbicide is a selective herbicide for fall or winter applications to alfalfa and clover for both pre-emergence and post-emergence control of susceptible winter annual and perennial grasses and for pre-emergence control of certain broadleaf weeds.”
GCS Imazamide SC label facts
- Product GCS Imazamide SC
- EPA Reg. No. 94730-11
- Registrant Generic Crop Science, LLC
- Active ingredient imazethapyr and propyzamide
- MOA group 2 and 23
Crops on the GCS Imazamide SC label
GCS Imazamide SC is labeled for these 2 crops and uses, per the EPA label.
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Weeds on the GCS Imazamide SC label
The GCS Imazamide SC label names 62 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 control45- foxtail barley
- barley
- barnyardgrass, common
- beets, wild
- bluegrass, annual
- bluegrass, bulbous
- bluegrass, kentucky
- brome, downy
- chickweed
- cupgrass, woolly
- fescue, tall
- fleabane, annual
- goatgrass, jointed
- knotweed, prostrate
- kochia
- kochia, triazine-resistant
- lambsquarter
- morningglory
- mustard, black
- mustard, tumble
- mustard, wild
- nightshade, black
- nightshade, eastern black
- nightshade, hairy
- oat, volunteer
- wild oats
- orchardgrass
- pennycress, field
- pepperweed, field
- pigweed, redroot
- pigweed, smooth
- ragweed, common
- ragweed, giant
- sorrel, red
- rye, volunteer
- ryegrass, italian
- ryegrass, perennial
- shepherd's-purse
- tansy mustard, green
- tansy mustard, pinnate
- velvetgrass
- velvetleaf
- volunteer wheat
- radish, wild
- foxtail, yellow
Suppression
suppression17- jerusalem artichoke
- bromes
- dodder
- fescues
- flixweed
- goosefoot, nettle leaf
- henbit
- kochia, ALS-resistant
- kochia, glyphosate-resistant
- pepperweed, virginia
- quackgrass
- thistle, russian
- smartweed, lady's thumb
- smartweed, pennsylvania
- sunflower, annual
- waterhemp, common
- timothy
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GCS Imazamide SC 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.
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Plant-back and rotation
Your interval depends on your application rate, the rotational crop, and your state, region, and rainfall — some intervals differ in CA, CO, ID, MN, ND, NV, OR, UT, and WA.
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.
GCS Imazamide SC FAQ
What weeds does GCS Imazamide SC control?
The GCS Imazamide SC label names 62 weeds, including foxtail barley, barley, common barnyardgrass, wild beets, annual bluegrass, and bulbous bluegrass. Control varies by crop, rate, and timing.
What crops is GCS Imazamide SC labeled for?
GCS Imazamide SC is labeled for 2 crops and uses, including alfalfa and clover.
What is the active ingredient in GCS Imazamide SC? Is it a generic?
GCS Imazamide SC's active ingredient is imazethapyr and propyzamide (MOA Group 2 and 23). 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 GCS Imazamide SC?
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 GCS Imazamide SC?
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 GCS Imazamide SC 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.