Herbicide label
Rhonox Herbicide Label
Rhonox (EPA 11685-21-71368) is a Group 4 mcpa herbicide labeled for 7 crops. The label lists 17 controlled weeds, plus partial-control, suppression, and partner-control categories.
Rhonox label facts
- Product Rhonox
- EPA Reg. No. 11685-21-71368
- Distributor Nufarm, Inc.
- Active ingredient mcpa
- MOA group 4
Crops on the Rhonox label
Rhonox is labeled for these 7 crops and uses, per the EPA label.
Weeds on the Rhonox label
The Rhonox label names 17 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 control17- amaranthus species
- burdock
- cocklebur, common
- dandelion
- lambsquarters, common
- mustard
- pennycress, field
- pepperweeds
- pigweed
- plantain
- purslanes
- ragweed, common
- ragweed, giant
- rocket, yellow
- shepherd's-purse
- thistle, bull
- thistle, russian
Rhonox 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.
Rhonox FAQ
What weeds does Rhonox control?
The Rhonox label names 17 weeds, including amaranthus species, burdock, common cocklebur, dandelion, common lambsquarters, and mustard. Control varies by crop, rate, and timing.
What crops is Rhonox labeled for?
Rhonox is labeled for 7 crops and uses, including wheat, barley, durum wheat, oats, and cereal rye.
What is the active ingredient in Rhonox? Is it a generic?
Rhonox's active ingredient is mcpa (MOA Group 4). 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.