Herbicide label
Pysonex Herbicide Label
Pysonex (EPA 352-613-85588) is a Group 2 pyrithiobac herbicide labeled for 1 crops. The label lists 60 controlled weeds, plus partial-control, suppression, and partner-control categories.
“Pysonex™ herbicide is absorbed by weed foliage following postemergence application.”
Pysonex label facts
- Product Pysonex
- EPA Reg. No. 352-613-85588
- Distributor AgSurf Corporation
- Active ingredient pyrithiobac
- MOA group 2
Crops on the Pysonex label
Pysonex is labeled for these 1 crops and uses, per the EPA label.
Weeds on the Pysonex label
The Pysonex label names 76 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 control60- beggarweed, florida
- carpetweed
- citronmelon
- cocklebur, common
- senna, coffee
- cowpea
- dayflower, common
- dayflower
- devilsclaw
- dock, curly
- goosefoot, nettleleaf
- groundcherry, wright
- horse purslane
- jimsonweed
- knotweed, silversheath
- ladysthumb
- horseweed
- morningglory, cypressvine
- morningglory, entireleaf
- morningglory, ivyleaf
- morningglory, pitted
- morningglory, purple
- morningglory, red
- morningglory, scarlet
- morningglory, sharppod
- morningglory, cotton
- morningglory, smallflower
- morningglory, threelobe
- morningglory, woolly
- mustard, black
- nightshade, black
- nightshade, hairy
- amaranth, palmer
- pigweed, redroot
- pigweed, smooth
- pigweed, spiny
- pigweed, tumble
- poinsettia, wild
- sida, prickly
- puncturevine
- purslane, common
- radish, wild
- redweed
- rocket, london
- sage, lanceleaf
- sesbania, hemp
- shepherd's-purse
- smartweed, ladysthumb
- smartweed, pennsylvania
- smellmelon
- spiderflower, spiny
- spurge, spotted
- anoda, spurred
- starbur, bristly
- sunflower, annual
- sunflower, prairie
- thistle, russian
- velvetleaf
- waterhemp, common
- watermelon, volunteer
Partial control
partial2- nutsedge, yellow
- sicklepod
Suppression
suppression11- barnyardgrass, common
- crabgrass, large
- foxtail, giant
- goosegrass
- johnsongrass, seedling
- lambsquarters
- nutsedge, purple
- panicum, fall
- pusley, florida
- signalgrass, broadleaf
- texasweed
Controls with a tank-mix partner
needs partner3- johnsongrass
- grass species
- eveningprimrose, cutleaf
Pysonex 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.
Pysonex FAQ
What weeds does Pysonex control?
The Pysonex label names 76 weeds, including florida beggarweed, carpetweed, citronmelon, common cocklebur, coffee senna, and cowpea. Control varies by crop, rate, and timing.
What crops is Pysonex labeled for?
Pysonex is labeled for 1 crops and uses, including cotton.
What is the active ingredient in Pysonex? Is it a generic?
Pysonex's active ingredient is pyrithiobac (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.