Herbicide label
Bison
Bison (EPA 9779-347) is a Group 4 and 6 bromoxynil and mcpa herbicide labeled for 8 crops. The label lists 55 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 cited to 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 cited to the label, so you can check it against the source.
Bison label facts
- Product Bison
- EPA Reg. No. 9779-347
- Registrant WinField Solutions, LLC
- Active ingredient bromoxynil and mcpa
- MOA group 4 and 6
Crops on the Bison label
Bison is labeled for these 8 crops and uses, per the EPA label.
- wheat
- barley
- spring wheat
- winter wheat
- oats
- cereal rye
- flax
- durum wheat
Need the rate or timing for one of these? Filter every label by your crop, free.
Weeds on the Bison label
The Bison label names 59 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 control55- sowthistle, annual
- mustard, black
- nightshade, black
- cocklebur, common
- lambsquarters, common
- tarweed, common
- cockle, cow
- nightshade, cutleaf
- nightshade, eastern black
- fiddleneck
- pennycress, field
- smartweed, green
- nightshade, hairy
- poppy, horned
- jimsonweed
- ladysthumb
- sage, lanceleaf
- rocket, london
- marshelder
- smartweed, pennsylvania
- pepperweed
- pigweed, redroot
- thistle, russian
- shepherd's-purse
- nightshade, silverleaf
- pigweed, smooth
- pigweed, spiny
- sunflower, annual
- waterhemp, common
- buckwheat, tartary
- mustard, tumble
- buckwheat, wild
- mustard, wild
- rocket, yellow
- mustard, blue
- groundsel, common
- ragweed, common
- chamomile, corn
- gromwell, corn
- fumitory
- ragweed, giant
- sesbania, hemp
- henbit
- morningglory, ivyleaf
- knawel
- kochia
- mayweed
- knotweed, prostrate
- puncturevine
- morningglory, tall
- mustard, tansy
- tarweed
- velvetleaf
- volunteer canola
- radish, wild
Suppression
suppression1- thistle, canada
Controls with a tank-mix partner
needs partner3- chickweed
- filaree, broadleaf
- wild oats
Want the control level for your crop, or to filter 1,700+ labels by any of these weeds? Use the free label filter.
Bison 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 cites the exact per-acre rate for your crop to 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 AK, AL, AR, AZ, CA, CO, CT, DC, DE, FL, GA, HI, IA, ID, IL, IN, KS, KY, LA, MA, MD, ME, MI, MN, MO, MS, MT, NC, ND, NE, NH, NJ, NM, NV, NY, OH, OK, OR, PA, RI, SC, SD, TN, TX, UT, VA, VT, WA, WI, WV, and WY.
Get the interval for your rotation: build a program and FieldMarshal cites the exact plant-back for your rotational crop to the label line.
Bison FAQ
What weeds does Bison control?
The Bison label names 59 weeds, including annual sowthistle, black mustard, black nightshade, common cocklebur, common lambsquarters, and common tarweed. Control varies by crop, rate, and timing.
What crops is Bison labeled for?
Bison is labeled for 8 crops and uses, including wheat, barley, spring wheat, winter wheat, and oats.
What is the active ingredient in Bison? Is it a generic?
Bison's active ingredient is bromoxynil and mcpa (MOA Group 4 and 6). 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 Bison?
It depends on your rotational crop, application rate, and region, so the label gives a table, not one number. Build a program and FieldMarshal cites the exact interval for your rotation to the label line, so you can verify it.
Build a program →Can I tank-mix Bison?
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 cites the condition on each, so you can verify it.
Build a program →Plan in minutes, not evenings.
Start with Bison and let FieldMarshal build a defensible herbicide program for your field, every product, rate, and plant-back cross-referenced and cited.
Free account and label filter. Building a program is paid, metered by use, so you pay only for what you build.
Sources
Last updated 2026-07-10.