Herbicide label
Fever Prime
Fever Prime (EPA 89167-87-89391) is a Group 10 and 15 glufosinate and metolachlor herbicide labeled for 4 crops. The label lists 102 controlled weeds, plus partial-control, suppression, and partner-control categories.
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Fever Prime label facts
- Product Fever Prime
- EPA Reg. No. 89167-87-89391
- Distributor Innvictis Crop Care LLC
- Active ingredient glufosinate and metolachlor
- MOA group 10 and 15
Crops on the Fever Prime label
Fever Prime is labeled for these 4 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 Fever Prime label
The Fever Prime label names 102 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 control102- amaranth, palmer
- amaranth, powell
- anoda, spurred
- barley
- barnyardgrass, common
- bedstraw, catchweed
- beggarweed, florida
- black medic
- bluegrass, annual
- blueweed, texas
- buckwheat, wild
- buffalobur
- burcucumber
- carpetweed
- chickweed, common
- cocklebur, common
- copperleaf, hophornbeam
- corn, volunteer
- cotton, volunteer
- crabgrass, large
- crabgrass, smooth
- croton, tropic
- croton, woolly
- cupgrass, woolly
- devil's claw
- eclipta
- fleabane, annual
- foxtail, bristly
- foxtail, giant
- foxtail, green
- foxtail, robust purple
- foxtail, yellow
- galinsoga, hairy
- galinsoga, smallflower
- geranium, cutleaf
- goosegrass
- groundcherry, cutleaf
- hempnettle
- horsenettle
- jimsonweed
- johnsongrass, seedling
- junglerice
- knotweed
- kochia
- ladysthumb
- lambsquarters, common
- mallow, common
- mallow, venice
- horseweed
- marshelder, annual
- millet, proso volunteer
- morningglory, entireleaf
- morningglory, ivyleaf
- morningglory, pitted
- morningglory, sharppod
- morningglory, smallflower
- morningglory, tall
- mustard, wild
- nightshade, black
- nightshade, eastern black
- nightshade, hairy
- wild oats
- panicum, fall
- panicum, texas
- pennycress, field
- pigweed, prostrate
- pigweed, redroot
- pigweed, smooth
- pigweed, tumble
- puncturevine
- purslane, common
- pusley, florida
- ragweed, common
- ragweed, giant
- red rice
- rice, volunteer
- sandbur, field
- senna, coffee
- sesbania, hemp
- shattercane
- shepherd's-purse
- sicklepod
- sida, prickly
- signalgrass, broadleaf
- smartweed, pennsylvania
- smellmelon
- sorghum, volunteer
- sowthistle, annual
- spiderwort, tropical
- sprangletop
- spurge, prostrate
- spurge, spotted
- starbur, bristly
- stinkgrass
- sunflower, annual
- sunflower, prairie
- sunflower, volunteer
- thistle, russian
- velvetleaf
- waterhemp, common
- volunteer wheat
- witchgrass
Suppression
suppression3- eclipta
- horsenettle
- purslane, common
Want the control level for your crop, or to filter 1,700+ labels by any of these weeds? Use the free label filter.
Fever Prime 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 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.
Fever Prime FAQ
What weeds does Fever Prime control?
The Fever Prime label names 102 weeds, including palmer amaranth, powell amaranth, spurred anoda, barley, common barnyardgrass, and catchweed bedstraw. Control varies by crop, rate, and timing.
What crops is Fever Prime labeled for?
Fever Prime is labeled for 4 crops and uses, including field corn, soybeans, cotton, and corn silage.
What is the active ingredient in Fever Prime? Is it a generic?
Fever Prime's active ingredient is glufosinate and metolachlor (MOA Group 10 and 15). 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 Fever Prime?
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 Fever Prime?
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 Fever Prime 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.