Herbicide label
AAtrex 4L Herbicide Label
AAtrex 4L (EPA 100-497) is a Group 5 atrazine herbicide labeled for 6 crops. The label lists 21 controlled weeds, plus partial-control, suppression, and partner-control categories.
AAtrex 4L label facts
- Product AAtrex 4L
- EPA Reg. No. 100-497
- Registrant Syngenta Crop Protection, LLC
- Active ingredient atrazine
- MOA group 5
Crops on the AAtrex 4L label
AAtrex 4L is labeled for these 6 crops and uses, per the EPA label.
Weeds on the AAtrex 4L label
The AAtrex 4L label names 31 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 control21- brome, downy
- cocklebur, common
- groundcherry
- jimsonweed
- kochia
- lambsquarters, common
- lettuce, wild
- morning glory, annual
- mustard
- nightshade, black
- wild oats
- pennycress, field
- ragweed, giant
- thistle, russian
- volunteer wheat
- buckwheat, wild
- henbit
- smartweed
- pigweed
- purslane
- sunflower, wild
Partial control
partial8- sicklepod
- velvetleaf
- witchgrass
- barnyardgrass, common
- crabgrass, large
- foxtail, giant
- foxtail, green
- foxtail, yellow
Controls with a tank-mix partner
needs partner2- carpetweed
- panicum, fall
AAtrex 4L 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.
AAtrex 4L FAQ
What weeds does AAtrex 4L control?
The AAtrex 4L label names 31 weeds, including downy brome, common cocklebur, groundcherry, jimsonweed, kochia, and common lambsquarters. Control varies by crop, rate, and timing.
What crops is AAtrex 4L labeled for?
AAtrex 4L is labeled for 6 crops and uses, including field corn, sorghum, sweet corn, sorghum-sudangrass, and sugarcane.
What is the active ingredient in AAtrex 4L? Is it a generic?
AAtrex 4L's active ingredient is atrazine (MOA Group 5). 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.