Herbicide label
AAtrex Nine-O Herbicide Label
AAtrex Nine-O (EPA 100-585) is a Group 5 atrazine herbicide labeled for 6 crops. The label lists 25 controlled weeds, plus partial-control, suppression, and partner-control categories.
AAtrex Nine-O label facts
- Product AAtrex Nine-O
- EPA Reg. No. 100-585
- Registrant Syngenta Crop Protection, LLC
- Active ingredient atrazine
- MOA group 5
Crops on the AAtrex Nine-O label
AAtrex Nine-O is labeled for these 6 crops and uses, per the EPA label.
Weeds on the AAtrex Nine-O label
The AAtrex Nine-O label names 35 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 control25- amaranth, spiny
- junglerice
- 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
- dock
- henbit
- smartweed
- thistle, annual
- 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 Nine-O 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 Nine-O FAQ
What weeds does AAtrex Nine-O control?
The AAtrex Nine-O label names 35 weeds, including spiny amaranth, junglerice, downy brome, common cocklebur, groundcherry, and jimsonweed. Control varies by crop, rate, and timing.
What crops is AAtrex Nine-O labeled for?
AAtrex Nine-O is labeled for 6 crops and uses, including field corn, sorghum, sweet corn, sorghum-sudangrass, and sugarcane.
What is the active ingredient in AAtrex Nine-O? Is it a generic?
AAtrex Nine-O'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.