Herbicide label
Parazone 3SL Herbicide Label
Parazone 3SL (EPA 5481-615) is a Group 22 paraquat herbicide labeled for 24 crops. The label lists 40 controlled weeds, plus partial-control, suppression, and partner-control categories.
“Parazone 3SL is a contact herbicide that desiccates all green plant tissue.”
Parazone 3SL label facts
- Product Parazone 3SL
- EPA Reg. No. 5481-615
- Registrant Amvac Chemical Corporation
- Active ingredient paraquat
- MOA group 22
Crops on the Parazone 3SL label
Parazone 3SL is labeled for these 24 crops and uses, per the EPA label.
Weeds on the Parazone 3SL label
The Parazone 3SL label names 60 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 control40- amaranth, palmer
- barley
- barnyardgrass, common
- beggarweed, florida
- bluegrass, annual
- brome, downy
- brome, rescue
- cereals, volunteer
- chickweed
- cotton, volunteer
- crabgrass
- dogfennel
- fiddleneck
- foxtail
- foxtail, giant
- goosegrass
- groundcherry, cutleaf
- groundsel, common
- henbit
- johnsongrass, seedling
- maids, red
- millet, texas
- mustard, tansy
- wild oats
- panicum, fall
- pigweed
- purslane
- ragweed, common
- red rice
- rocket, london
- ryegrass
- ryegrass, italian
- shepherd's-purse
- sicklepod
- signalgrass, broadleaf
- small grain, volunteer
- sowthistle
- spikeweed
- volunteer wheat
- witchweed
Partial control
partial15- cocklebur, common
- horseweed
- knotweed
- kochia
- lambsquarters
- prickly lettuce
- mallow
- morningglory
- ragweed, giant
- sida, prickly
- smartweed
- smartweed, pennsylvania
- spiderwort
- starbur, bristly
- velvetleaf
Suppression
suppression5- bindweed, hedge
- dandelion
- johnsongrass
- sedges
- thistle, canada
Parazone 3SL 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.
Parazone 3SL FAQ
What weeds does Parazone 3SL control?
The Parazone 3SL label names 60 weeds, including palmer amaranth, barley, common barnyardgrass, florida beggarweed, annual bluegrass, and downy brome. Control varies by crop, rate, and timing.
What crops is Parazone 3SL labeled for?
Parazone 3SL is labeled for 24 crops and uses, including field corn, soybeans, wheat, cotton, and sunflower.
What is the active ingredient in Parazone 3SL? Is it a generic?
Parazone 3SL'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.