Herbicide label
Katagon
Katagon (EPA 71512-44-74530) is a Group 2 and 27 nicosulfuron and tolpyralate herbicide labeled for 2 crops. The label lists 7 controlled weeds, plus partial-control, suppression, and partner-control categories.
Build the herbicide program for your field
Tell FieldMarshal your crop, weeds, and rotation. Get back a complete program, products, rates, plant-back, and tank-mix, with every line checked against the label so you can verify it yourself.
Built from 1,700+ EPA herbicide labels and 49 state weed-control guides. Made for crop advisors and growers.
Free to create your account. Every line references the label, so you can check it against the source.
“Katagon is quickly absorbed by foliage and actively growing plant tissue, rapidly inhibiting the growth of susceptible weeds.”
Katagon label facts
- Product Katagon
- EPA Reg. No. 71512-44-74530
- Distributor Helm Agro US, Inc.
- Active ingredient nicosulfuron and tolpyralate
- MOA group 2 and 27
Crops on the Katagon label
Katagon is labeled for these 2 crops and uses, per the EPA label.
Need the rate or timing for one of these? Filter every label by your crop, free.
Weeds on the Katagon label
The Katagon label names 16 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 control7- amaranth, palmer
- crabgrass, large
- foxtail, green
- lambsquarters, common
- grain sorghum
- velvetleaf
- waterhemp, common
Suppression
suppression9- barnyardgrass, common
- foxtail, giant
- foxtail, yellow
- mallow, venice
- morningglory, ivyleaf
- panicum, fall
- pigweed, redroot
- ragweed, common
- ragweed, giant
Controls with a tank-mix partner
needs partner7- barnyardgrass, common
- foxtail, yellow
- mallow, venice
- morningglory, ivyleaf
- pigweed, redroot
- ragweed, common
- ragweed, giant
Want the control level for your crop, or to filter 1,700+ labels by any of these weeds? Use the free label filter.
Katagon 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.
Katagon FAQ
What weeds does Katagon control?
The Katagon label names 16 weeds, including palmer amaranth, large crabgrass, green foxtail, common lambsquarters, grain sorghum, and velvetleaf. Control varies by crop, rate, and timing.
What crops is Katagon labeled for?
Katagon is labeled for 2 crops and uses, including field corn and seed corn.
What is the active ingredient in Katagon? Is it a generic?
Katagon's active ingredient is nicosulfuron and tolpyralate (MOA Group 2 and 27). Other products list the same active ingredient; rates, formulations, and labeled crops differ — verify each on its own label.
What's the plant-back interval after Katagon?
It depends on your rotational crop, application rate, and region, so the label gives a table, not one number. Build a program and FieldMarshal gives you the exact interval for your rotation from the label line, so you can verify it.
Build a program →Can I tank-mix Katagon?
It depends on your target weeds, crop stage, and which partners the label approves. Build a program and FieldMarshal checks the label for approved partners and gives the condition on each, so you can verify it.
Build a program →Plan in minutes, not hours.
Start with Katagon and let FieldMarshal build a defensible herbicide program for your field, every product, rate, and plant-back cross-referenced and checked against the label.
Free account and label filter. Building a program is paid, metered by use, so you pay only for what you build.
Sources
Last updated 2026-07-14.