Herbicide label
Roundup Ultra
Roundup Ultra (EPA 524-475) is a Group 9 glyphosate herbicide labeled for 41 crops. The label lists 179 controlled weeds, plus partial-control, suppression, and partner-control categories.
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Roundup Ultra label facts
- Product Roundup Ultra
- EPA Reg. No. 524-475
- Registrant Bayer CropScience
- Active ingredient glyphosate
- MOA group 9
Crops on the Roundup Ultra label
Roundup Ultra is labeled for these 41 crops and uses, per the EPA label.
- field corn
- soybean
- wheat
- cotton
- sunflower
- potato
- peanut
- sugar beet
- canola
- barley
- sorghum
- rice
- alfalfa
- annual ryegrass
- buckwheat
- cereal rye
- chickpea
- clover
- corn silage
- cowpea
- durum wheat
- fallow
- field pea
- flax
- grass seed
- lentil
- mustard
- oats
- popcorn
- proso millet
- radish
- safflower
- seed corn
- sesame
- spinach
- sugarcane
- sweet corn
- sweet potato
- triticale
- turnip
- wild rice
Need the rate or timing for one of these? Filter every label by your crop, free.
Weeds on the Roundup Ultra label
The Roundup Ultra label names 198 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 control179- alfalfa
- ammannia, purple
- anoda, spurred
- bahiagrass
- barley
- barley, little
- barnyardgrass, common
- bassia, fivehook
- beggarweed, florida
- bermudagrass
- bermudagrass, water
- bindweed, field
- bittercress
- blackberry
- blackgum
- bluegrass, annual
- bluegrass, bulbous
- bluegrass, kentucky
- blueweed, texas
- brome, downy
- brome, japanese
- bromegrass, smooth
- buckwheat, wild
- burcucumber
- bursage, woolly-leaf
- buttercup
- canarygrass, reed
- carpetweed
- cattail
- chamise
- cheat
- chervil
- chickweed
- clover, red
- clover, white
- cocklebur, common
- cogongrass
- copperleaf, hophornbeam
- copperleaf, virginia
- coreopsis, plains
- corn, volunteer
- crabgrass
- virginia creeper
- crowfootgrass
- cupgrass, woolly
- dallisgrass
- dandelion
- devilsclaw
- dock, curly
- dogbane, hemp
- dwarfdandelion
- eclipta
- eucalyptus
- eveningprimrose, cutleaf
- falsedandelion
- falseflax, smallseed
- fescue
- fescue, tall
- fiddleneck
- filaree, broadleaf
- fleabane, annual
- fleabane, hairy
- fleabane, rough
- foxtail
- foxtail, bristly
- foxtail, carolina
- foxtail, giant
- foxtail, green
- foxtail, yellow
- carolina geranium
- goatgrass, jointed
- goosegrass
- grain sorghum
- groundcherry
- groundsel, common
- guineagrass
- hazel
- poison hemlock
- henbit
- honeysuckle
- horsenettle
- horseradish
- horseweed
- poison ivy
- jerusalem artichoke
- jimsonweed
- johnsongrass
- johnsongrass, seedling
- junglerice
- knapweed
- knotweed
- kochia
- lambsquarters, common
- lespedeza
- prickly lettuce
- mannagrass, eastern
- mayweed
- milkweed, common
- millet, wild-proso
- morning glory, annual
- muhly, wirestem
- mullein, common
- mustard, blue
- mustard, tansy
- mustard, tumble
- mustard, wild
- nightshade, black
- nightshade, hairy
- nightshade, silverleaf
- nutsedge, purple
- nutsedge, yellow
- oats
- wild oats
- orchardgrass
- pampasgrass
- panicum, browntop
- panicum, fall
- panicum, texas
- paragrass
- pennycress, field
- pepperweed, virginia
- pigweed
- pigweed, redroot
- pokeweed, common
- purslane
- pusley, florida
- quackgrass
- ragweed, common
- ragweed, giant
- red rice
- reed, giant
- rocket, london
- rocket, yellow
- cereal rye
- rye, common
- rye, volunteer
- ryegrass
- ryegrass, perennial
- sage, black
- sandbur
- sandbur, field
- sandbur, longspine
- sesbania, hemp
- shattercane
- shepherd's-purse
- sicklepod
- sida, prickly
- signalgrass, broadleaf
- smartweed, ladysthumb
- smartweed, pennsylvania
- smartweed, swamp
- sowthistle, annual
- sowthistle, perennial
- spanishneedles
- speedwell, corn
- speedwell, purslane
- sprangletop
- spurge, prostrate
- spurge, spotted
- spurry, umbrella
- starbur, bristly
- starthistle, yellow
- stinkgrass
- sunflower
- swinecress
- sweetgum
- thistle, canada
- thistle, russian
- timothy
- trumpetcreeper
- vaseygrass
- velvetgrass
- velvetleaf
- waterhemp, common
- wheat
- wheat, overwintered
- volunteer wheat
- wheatgrass, western
- witchgrass
Partial control
partial14- alligatorweed
- bearmat
- buckwheat, california
- catsclaw
- hasardia
- monkey flower
- phragmites
- red rice
- sage, white
- sweet potato, wild
- thistle, artichoke
- torpedograss
- trumpetcreeper
- waxmyrtle, southern
Suppression
suppression6- bentgrass
- dogfennel
- redvine
- smutgrass
- spurge, leafy
- thistle, musk
Controls with a tank-mix partner
needs partner1- mallow
Want the control level for your crop, or to filter 1,700+ labels by any of these weeds? Use the free label filter.
Roundup Ultra 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.
Roundup Ultra FAQ
What weeds does Roundup Ultra control?
The Roundup Ultra label names 198 weeds, including alfalfa, purple ammannia, spurred anoda, bahiagrass, barley, and little barley. Control varies by crop, rate, and timing.
What crops is Roundup Ultra labeled for?
Roundup Ultra is labeled for 41 crops and uses, including field corn, soybeans, wheat, cotton, and sunflower.
What is the active ingredient in Roundup Ultra? Is it a generic?
Roundup Ultra's active ingredient is glyphosate (MOA Group 9). Other products list the same active ingredient; rates, formulations, and labeled crops differ — verify each on its own label.
Can I tank-mix Roundup Ultra?
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.
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Sources
Last updated 2026-07-10.