Herbicide label
Pemex Herbicide Label
Pemex (EPA 91234-168) is a Group 2 imazethapyr herbicide labeled for 9 crops. The label lists 94 controlled weeds, plus partial-control, suppression, and partner-control categories.
Pemex label facts
- Product Pemex
- EPA Reg. No. 91234-168
- Registrant Atticus, LLC
- Active ingredient imazethapyr
- MOA group 2
Crops on the Pemex label
Pemex is labeled for these 9 crops and uses, per the EPA label.
Weeds on the Pemex label
The Pemex label names 126 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 control94- alligatorweed
- anoda, spurred
- jerusalem artichoke
- barnyardgrass, common
- bedstraw, catchweed
- beet, wild
- starbur, bristly
- buckwheat, wild
- buffalobur
- carpetweed
- chickweed, common
- chickweed, mouseear
- cocklebur, common
- crabgrass, large
- crabgrass, smooth
- cupgrass, woolly
- devil's claw
- filaree, redstem
- filaree, whitestem
- fleabane, rough
- flixweed
- foxtail, giant
- foxtail, green
- foxtail, robust purple
- foxtail, robust white
- foxtail, yellow
- galinsoga
- goosefoot, nettleleaf
- henbit
- jimsonweed
- johnsongrass, seedling
- knotweed, prostrate
- kochia
- lambsquarters, common
- miner's lettuce
- mallow, common
- mallow, little
- marshelder
- millet, wild-proso
- morningglory, entireleaf
- morningglory, ivyleaf
- morningglory, pitted
- morningglory, smallflower
- morningglory, tall
- mustard spp.
- mustard, black
- mustard, tumble
- mustard, wild
- nettle, burning
- nightshade, black
- nightshade, eastern black
- nightshade, hairy
- nutsedge, purple
- nutsedge, yellow
- pennycress, field
- pepperweed, field
- pepperweed, virginia
- pigweed, redroot
- pigweed, smooth
- pigweed, spiny
- poinsettia, wild
- puncturevine
- purslane, common
- pusley, florida
- radish, wild
- ragweed, common
- ragweed, giant
- redmaids
- red rice
- rocket, london
- rocket, yellow
- rockpurslane, desert
- shattercane
- shepherd's-purse
- sida, prickly
- signalgrass, broadleaf
- smartweed, ladysthumb
- smartweed, pennsylvania
- smartweed, swamp
- sorghum, almum
- spurge, petty
- spurge, prostrate
- spurge, spotted
- spurge, toothed
- spurry, corn
- sunflower, annual
- swinecress
- tansymustard, green
- tansymustard, pinnate
- thistle, russian
- velvetleaf
- wartcress, creeping
- watercress
- willowleaf, panicle-leaf
Suppression
suppression26- barley
- bluegrass, annual
- brome
- canarygrass, littleseed
- hoary cress
- dandelion
- dock, broadleaf
- dock, curly
- dodder
- fescue
- fiddleneck
- goosegrass
- groundsel, common
- rhizome johnsongrass
- mallow, venice
- oat, volunteer
- wild oats
- orchardgrass
- oxtongue, bristly
- panicum, fall
- panicum, texas
- quackgrass
- sage, barnyard
- thistle, canada
- timothy
- volunteer wheat
Controls with a tank-mix partner
needs partner9- corn, volunteer
- goosegrass
- junglerice
- panicum, fall
- panicum, texas
- sprangletop, red
- witchgrass
- pigweed spp.
- waterhemp, common
Pemex 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.
Pemex FAQ
What weeds does Pemex control?
The Pemex label names 126 weeds, including alligatorweed, spurred anoda, jerusalem artichoke, common barnyardgrass, catchweed bedstraw, and wild beet. Control varies by crop, rate, and timing.
What crops is Pemex labeled for?
Pemex is labeled for 9 crops and uses, including soybeans, peanut, alfalfa, clover, and chickpea.
What is the active ingredient in Pemex? Is it a generic?
Pemex's active ingredient is imazethapyr (MOA Group 2). 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.