Herbicide label

Roundup Ultra

Roundup Ultra (EPA 524-475) is a Group 9 glyphosate herbicide labeled for 45 crops. The label lists 174 controlled weeds, plus partial-control, suppression, and partner-control categories.

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Official EPA label (PDF)

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 45 crops and uses, per the EPA label.

field corn
soybean
wheat
cotton
sunflower
potato
peanut
sugar beet
canola
barley
sorghum
rice
alfalfa
buckwheat
pearl millet
proso millet
oats
cereal rye
triticale
durum wheat
wild rice
seed corn
corn silage
sweet corn
popcorn
fallow
mint
flax
mustard
rapeseed
safflower
sesame
sugarcane
spinach
chickpea
cowpea
dry edible bean
lentil
field pea
radish
sweet potato
turnip
clover
grass seed
annual ryegrass

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 192 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 control174

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
brackenfern
brome, downy
brome, japanese
bromegrass, smooth
buckwheat, wild
burcucumber
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
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, bristly
foxtail, carolina
foxtail, giant
foxtail, green
foxtail, yellow
carolina geranium
goatgrass, jointed
goosegrass
grain sorghum
groundcherry
groundsel, common
hazel
henbit
honeysuckle
horsenettle
horseradish
horseweed
itchgrass
jerusalem artichoke
jimsonweed
johnsongrass
johnsongrass, seedling
junglerice
knapweed
knotweed
kochia
lambsquarters
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
needles, spanish
nightshade, black
nightshade, hairy
nightshade, silverleaf
nutsedge, purple
nutsedge, yellow
oak, pin
oats
wild oats
orchardgrass
pampasgrass
panicum, browntop
panicum, fall
panicum, texas
paragrass
pennycress, field
pepperweed, virginia
pigweed
poison hemlock
poison ivy
pokeweed, common
purslane
pusley, florida
quackgrass
ragweed, common
ragweed, giant
reed, giant
red rice
rocket, london
rocket, yellow
cereal rye
rye, volunteer
ryegrass
ryegrass, perennial
sage, black
sandbur, field
sandbur, longspine
sesbania, hemp
shattercane
shepherd's-purse
sicklepod
sida, prickly
signalgrass, broadleaf
smartweed, ladysthumb
smartweed, pennsylvania
smartweed, swamp
sowthistle, annual
speedwell, corn
speedwell, purslane
sprangletop
spurge, prostrate
spurge, spotted
spurry, umbrella
starbur, bristly
starthistle, yellow
stinkgrass
sunflower
sweetgum
swinecress
thistle, canada
thistle, russian
timothy
trumpetcreeper
vaseygrass
velvetgrass
velvetleaf
virginia creeper
waterhemp, common
wheat
wheat, overwintered
wheatgrass, western
witchgrass

Partial control

partial14

alligatorweed
bearmat
brackenfern
buckwheat, california
catsclaw
hasardia
monkey flower
phragmites
sage, white
sweet potato, wild
thistle, artichoke
torpedograss
trumpetcreeper
waxmyrtle, southern

Suppression

suppression5

dogfennel
redvine
smutgrass
thistle, canada
thistle, musk

Controls with a tank-mix partner

needs partner2

mallow
spurge, leafy

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.

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, 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.

Roundup Ultra FAQ

What weeds does Roundup Ultra control?

The Roundup Ultra label names 192 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 45 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.

What's the plant-back interval after Roundup Ultra?

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.

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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.