Herbicide label
PECOS
PECOS (EPA 89168-33-91395) is a Group 14 acifluorfen herbicide labeled for 3 crops. The label lists 65 controlled weeds, plus partial-control, suppression, and partner-control categories.
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“PECOS is a selective herbicide for use in rice, strawberries, peanuts and soybeans for postemergence control of grasses and broadleaf weeds listed in this label.”
PECOS label facts
- Product PECOS
- EPA Reg. No. 89168-33-91395
- Distributor Altitude Crop Innovations, LLC.
- Active ingredient acifluorfen
- MOA group 14
Crops on the PECOS label
PECOS is labeled for these 3 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 PECOS label
The PECOS label names 77 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 control65- jerusalem artichoke
- balloonvine
- beggarticks
- carpetweed
- cocklebur, common
- cocklebur, heartleaf
- copperleaf, hophornbeam
- corn, volunteer
- crotalaria, showy
- croton, tropic
- croton, woolly
- crownbeard, golden
- cucumber, wild spiny
- eclipta
- foxtail, giant
- foxtail, green
- foxtail, yellow
- galinsoga, hairy
- galinsoga, smallflower
- groundcherry, cutleaf
- groundcherry, lanceleaf
- indigo, hairy
- jimsonweed
- rhizome johnsongrass
- johnsongrass, seedling
- ladysthumb
- lambsquarters, common
- morningglory, cypressvine
- morningglory, entireleaf
- morningglory, ivyleaf
- morningglory, purple moonflower
- morningglory, scarlet
- morningglory, small white
- morningglory, smallflower
- morningglory, tall
- morningglory, willowleaf
- mustard, wild
- nightshade, black
- nightshade, eastern black
- oats
- panicum, fall
- panicum, texas
- amaranth, palmer
- pigweed, prostrate
- pigweed, redroot
- pigweed, smooth
- pigweed, spiny
- poinsettia, wild
- poorjoe
- purslane, common
- pusley, florida
- ragweed, common
- ragweed, giant
- rye, volunteer
- senna, coffee
- sesbania, hemp
- shattercane
- sida, prickly
- smartweed, pennsylvania
- spurge, prostrate
- spurge, spotted
- starbur, bristly
- velvetleaf
- waterhemp, common
- volunteer wheat
Partial control
partial6- beggarweed, florida
- buckwheat, wild
- buffalobur
- burgherkin
- citron (wild watermelon)
- smellmelon
Suppression
suppression7- beggarweed, florida
- bindweed, field
- bindweed, hedge
- milkweed, climbing
- milkweed, common
- redvine
- trumpetcreeper
Want the control level for your crop, or to filter 1,700+ labels by any of these weeds? Use the free label filter.
PECOS 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.
PECOS FAQ
What weeds does PECOS control?
The PECOS label names 77 weeds, including jerusalem artichoke, balloonvine, beggarticks, carpetweed, common cocklebur, and heartleaf cocklebur. Control varies by crop, rate, and timing.
What crops is PECOS labeled for?
PECOS is labeled for 3 crops and uses, including soybeans, peanut, and rice.
What is the active ingredient in PECOS? Is it a generic?
PECOS's active ingredient is acifluorfen (MOA Group 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 PECOS?
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 PECOS?
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 PECOS 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.