Herbicide label
PECOS Herbicide Label
PECOS (EPA 89168-33-91395) is a Group 14 acifluorfen herbicide labeled for 3 crops. The label lists 56 controlled weeds, plus partial-control, suppression, and partner-control categories.
“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.
Weeds on the PECOS label
The PECOS label names 68 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 control56- balloonvine
- carpetweed
- cocklebur, common
- copperleaf, hophornbeam
- crotalaria, showy
- croton, tropic
- croton, woolly
- crownbeard, golden
- eclipta
- foxtail, giant
- foxtail, green
- foxtail, yellow
- galinsoga, hairy
- galinsoga, smallflower
- groundcherry, cutleaf
- groundcherry, lanceleaf
- indigo, hairy
- jimsonweed
- 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
- 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
- shattercane
- smartweed, pennsylvania
- spurge, prostrate
- spurge, spotted
- starbur, bristly
- waterhemp, common
- volunteer wheat
- sesbania, hemp
Partial control
partial6- beggarweed, florida
- buckwheat, wild
- buffalobur
- burgherkin
- citron (wild watermelon)
- smellmelon
Suppression
suppression6- bindweed, field
- bindweed, hedge
- milkweed, climbing
- milkweed, common
- redvine
- trumpetcreeper
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 68 weeds, including balloonvine, carpetweed, common cocklebur, hophornbeam copperleaf, showy crotalaria, and tropic croton. 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.
Sources
Last updated 2026-09-30.