Herbicide label
Paraquat Concentrate Herbicide Label
Paraquat Concentrate (EPA 82542-3) is a Group 22 paraquat herbicide labeled for 22 crops. The label lists 34 controlled weeds, plus partial-control, suppression, and partner-control categories.
“PARAQUAT CONCENTRATE is a contact herbicide for control or suppression of a broad spectrum of emerged weeds including most small annual broadleaf and grass weeds.”
Paraquat Concentrate label facts
- Product Paraquat Concentrate
- EPA Reg. No. 82542-3
- Registrant Source Dynamics, LLC
- Active ingredient paraquat
- MOA group 22
Crops on the Paraquat Concentrate label
Paraquat Concentrate is labeled for these 22 crops and uses, per the EPA label.
Weeds on the Paraquat Concentrate label
The Paraquat Concentrate label names 53 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 control34- barnyardgrass, common
- crabgrass
- fiddleneck
- foxtail, giant
- goosegrass
- groundcherry, cutleaf
- johnsongrass, seedling
- maids, red
- millet, texas
- panicum, fall
- pigweed
- purslane
- ragweed, common
- red rice
- sicklepod
- small grain, volunteer
- spikeweed
- volunteer wheat
- witchweed
- bluegrass, annual
- brome, downy
- chickweed
- groundsel, common
- brome, rescue
- dogfennel
- foxtail
- henbit
- mustard, tansy
- wild oats
- rocket, london
- ryegrass
- shepherd's-purse
- sowthistle
- ryegrass, italian
Partial control
partial15- cocklebur, common
- horseweed
- knotweed
- kochia
- lambsquarters
- mallow
- morningglory
- ragweed, giant
- sedges
- sida, prickly
- signalgrass, broadleaf
- smartweed, pennsylvania
- starbur, bristly
- velvetleaf
- prickly lettuce
Suppression
suppression4- bindweed, hedge
- dandelion
- johnsongrass
- thistle, canada
Paraquat Concentrate 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.
Paraquat Concentrate FAQ
What weeds does Paraquat Concentrate control?
The Paraquat Concentrate label names 53 weeds, including common barnyardgrass, crabgrass, fiddleneck, giant foxtail, goosegrass, and cutleaf groundcherry. Control varies by crop, rate, and timing.
What crops is Paraquat Concentrate labeled for?
Paraquat Concentrate is labeled for 22 crops and uses, including field corn, soybeans, wheat, cotton, and sunflower.
What is the active ingredient in Paraquat Concentrate? Is it a generic?
Paraquat Concentrate's active ingredient is paraquat (MOA Group 22). 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.