Herbicide label
Treaty Extra
Treaty Extra (EPA 71368-76) is a Group 2 thifensulfuron and tribenuron-methyl herbicide labeled for 13 crops. The label lists 66 controlled weeds, plus partial-control, suppression, and partner-control categories.
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“This product is absorbed primarily through the foliage of plants, rapidly inhibiting the growth of susceptible weeds.”
Treaty Extra label facts
- Product Treaty Extra
- EPA Reg. No. 71368-76
- Registrant Nufarm, Inc.
- Active ingredient thifensulfuron and tribenuron-methyl
- MOA group 2
Crops on the Treaty Extra label
Treaty Extra is labeled for these 13 crops and uses, per the EPA label.
- field corn
- soybean
- wheat
- cotton
- sugar beet
- canola
- barley
- sorghum
- rice
- durum wheat
- oats
- triticale
- fallow
Need the rate or timing for one of these? Filter every label by your crop, free.
Weeds on the Treaty Extra label
The Treaty Extra label names 77 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 control66- buckwheat, common
- buckwheat, wild
- buttercup, bur
- buttercup, smallflower
- catchfly, nightflowering
- chamomile, corn
- chamomile, false
- mayweed, chamomile
- chamomile, scentless
- chamomile, wild
- chickweed, common
- chickweed, field
- chickweed, stinking
- cowcockle
- cress, mouse-ear
- dock, broadleaf
- dock, curly
- falseflax, smallseed
- fiddleneck
- fiddleneck, tarweed
- filaree, redstem
- filaree, texas
- flixweed
- garlic, wild
- gromwell, corn
- groundsel, common
- knawel, annual
- kochia
- knotweed, prostrate
- ladysthumb
- lambsquarters, common
- lambsquarters, narrowleaf
- lambsquarters, slimleaf
- lentil, volunteer
- miner's lettuce
- prickly lettuce
- marshelder
- mayweed, stinking
- mustard, black
- mustard, blue
- mustard, tumble
- mustard, wild
- pea, volunteer
- pennycress, field
- pepperweed, clasping
- pigweed, prostrate
- pigweed, redroot
- pineapple-weed
- radish, common
- radish, wild
- redmaids
- rocket, london
- shepherd's-purse
- smartweed, green
- smartweed, pennsylvania
- sowthistle, annual
- spurry, corn
- sunflower, annual
- sunflower, volunteer
- swinecress
- tansymustard
- thistle, canada
- thistle, russian
- vetch
- vetch, hairy
- wallflower, bushy
Partial control
partial8- bedstraw, catchweed
- eveningprimrose, cutleaf
- carolina geranium
- mallow, common
- mallow, little
- nightshade, cutleaf
- nightshade, hairy
- radish, wild
Controls with a tank-mix partner
needs partner4- cocklebur, common
- wild oats
- ragweed, common
- sage, lanceleaf
Want the control level for your crop, or to filter 1,700+ labels by any of these weeds? Use the free label filter.
Treaty Extra 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, the rotational crop, and your state, region, and rainfall — some intervals differ in AL, AR, DE, GA, IA, ID, IL, IN, KY, LA, MD, MO, MS, NC, OH, PA, SC, TN, TX, and VA.
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.
Treaty Extra FAQ
What weeds does Treaty Extra control?
The Treaty Extra label names 77 weeds, including common buckwheat, wild buckwheat, bur buttercup, smallflower buttercup, nightflowering catchfly, and corn chamomile. Control varies by crop, rate, and timing.
What crops is Treaty Extra labeled for?
Treaty Extra is labeled for 13 crops and uses, including field corn, soybeans, wheat, cotton, and sugar beet.
What is the active ingredient in Treaty Extra? Is it a generic?
Treaty Extra's active ingredient is thifensulfuron and tribenuron-methyl (MOA Group 2). 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 Treaty Extra?
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 Treaty Extra?
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 Treaty Extra 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.